From 1ae4e59279b185a850ad25da4eb5a771bf36bdcb Mon Sep 17 00:00:00 2001 From: Linus Walleij Date: Thu, 26 Apr 2012 13:56:05 +0200 Subject: gpio: move the Nomadik GPIO driver to pinctrl I'm moving this driver over to the pinctrl subsystem to convert the custom pin mux/config scheme over to use pinctrl. Acked-by: Stephen Warren Signed-off-by: Linus Walleij --- drivers/gpio/Makefile | 1 - drivers/gpio/gpio-nomadik.c | 1306 ------------------------------------- drivers/pinctrl/Makefile | 1 + drivers/pinctrl/pinctrl-nomadik.c | 1306 +++++++++++++++++++++++++++++++++++++ 4 files changed, 1307 insertions(+), 1307 deletions(-) delete mode 100644 drivers/gpio/gpio-nomadik.c create mode 100644 drivers/pinctrl/pinctrl-nomadik.c diff --git a/drivers/gpio/Makefile b/drivers/gpio/Makefile index 007f54bd008..a4193ab1b26 100644 --- a/drivers/gpio/Makefile +++ b/drivers/gpio/Makefile @@ -36,7 +36,6 @@ obj-$(CONFIG_GPIO_MSM_V1) += gpio-msm-v1.o obj-$(CONFIG_GPIO_MSM_V2) += gpio-msm-v2.o obj-$(CONFIG_GPIO_MXC) += gpio-mxc.o obj-$(CONFIG_GPIO_MXS) += gpio-mxs.o -obj-$(CONFIG_PLAT_NOMADIK) += gpio-nomadik.o obj-$(CONFIG_ARCH_OMAP) += gpio-omap.o obj-$(CONFIG_GPIO_PCA953X) += gpio-pca953x.o obj-$(CONFIG_GPIO_PCF857X) += gpio-pcf857x.o diff --git a/drivers/gpio/gpio-nomadik.c b/drivers/gpio/gpio-nomadik.c deleted file mode 100644 index 9b126b6d79c..00000000000 --- a/drivers/gpio/gpio-nomadik.c +++ /dev/null @@ -1,1306 +0,0 @@ -/* - * Generic GPIO driver for logic cells found in the Nomadik SoC - * - * Copyright (C) 2008,2009 STMicroelectronics - * Copyright (C) 2009 Alessandro Rubini - * Rewritten based on work by Prafulla WADASKAR - * Copyright (C) 2011 Linus Walleij - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - */ -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include - -#include - -#include -#include - -/* - * The GPIO module in the Nomadik family of Systems-on-Chip is an - * AMBA device, managing 32 pins and alternate functions. The logic block - * is currently used in the Nomadik and ux500. - * - * Symbols in this file are called "nmk_gpio" for "nomadik gpio" - */ - -#define NMK_GPIO_PER_CHIP 32 - -struct nmk_gpio_chip { - struct gpio_chip chip; - struct irq_domain *domain; - void __iomem *addr; - struct clk *clk; - unsigned int bank; - unsigned int parent_irq; - int secondary_parent_irq; - u32 (*get_secondary_status)(unsigned int bank); - void (*set_ioforce)(bool enable); - spinlock_t lock; - bool sleepmode; - /* Keep track of configured edges */ - u32 edge_rising; - u32 edge_falling; - u32 real_wake; - u32 rwimsc; - u32 fwimsc; - u32 rimsc; - u32 fimsc; - u32 pull_up; - u32 lowemi; -}; - -static struct nmk_gpio_chip * -nmk_gpio_chips[DIV_ROUND_UP(ARCH_NR_GPIOS, NMK_GPIO_PER_CHIP)]; - -static DEFINE_SPINLOCK(nmk_gpio_slpm_lock); - -#define NUM_BANKS ARRAY_SIZE(nmk_gpio_chips) - -static void __nmk_gpio_set_mode(struct nmk_gpio_chip *nmk_chip, - unsigned offset, int gpio_mode) -{ - u32 bit = 1 << offset; - u32 afunc, bfunc; - - afunc = readl(nmk_chip->addr + NMK_GPIO_AFSLA) & ~bit; - bfunc = readl(nmk_chip->addr + NMK_GPIO_AFSLB) & ~bit; - if (gpio_mode & NMK_GPIO_ALT_A) - afunc |= bit; - if (gpio_mode & NMK_GPIO_ALT_B) - bfunc |= bit; - writel(afunc, nmk_chip->addr + NMK_GPIO_AFSLA); - writel(bfunc, nmk_chip->addr + NMK_GPIO_AFSLB); -} - -static void __nmk_gpio_set_slpm(struct nmk_gpio_chip *nmk_chip, - unsigned offset, enum nmk_gpio_slpm mode) -{ - u32 bit = 1 << offset; - u32 slpm; - - slpm = readl(nmk_chip->addr + NMK_GPIO_SLPC); - if (mode == NMK_GPIO_SLPM_NOCHANGE) - slpm |= bit; - else - slpm &= ~bit; - writel(slpm, nmk_chip->addr + NMK_GPIO_SLPC); -} - -static void __nmk_gpio_set_pull(struct nmk_gpio_chip *nmk_chip, - unsigned offset, enum nmk_gpio_pull pull) -{ - u32 bit = 1 << offset; - u32 pdis; - - pdis = readl(nmk_chip->addr + NMK_GPIO_PDIS); - if (pull == NMK_GPIO_PULL_NONE) { - pdis |= bit; - nmk_chip->pull_up &= ~bit; - } else { - pdis &= ~bit; - } - - writel(pdis, nmk_chip->addr + NMK_GPIO_PDIS); - - if (pull == NMK_GPIO_PULL_UP) { - nmk_chip->pull_up |= bit; - writel(bit, nmk_chip->addr + NMK_GPIO_DATS); - } else if (pull == NMK_GPIO_PULL_DOWN) { - nmk_chip->pull_up &= ~bit; - writel(bit, nmk_chip->addr + NMK_GPIO_DATC); - } -} - -static void __nmk_gpio_set_lowemi(struct nmk_gpio_chip *nmk_chip, - unsigned offset, bool lowemi) -{ - u32 bit = BIT(offset); - bool enabled = nmk_chip->lowemi & bit; - - if (lowemi == enabled) - return; - - if (lowemi) - nmk_chip->lowemi |= bit; - else - nmk_chip->lowemi &= ~bit; - - writel_relaxed(nmk_chip->lowemi, - nmk_chip->addr + NMK_GPIO_LOWEMI); -} - -static void __nmk_gpio_make_input(struct nmk_gpio_chip *nmk_chip, - unsigned offset) -{ - writel(1 << offset, nmk_chip->addr + NMK_GPIO_DIRC); -} - -static void __nmk_gpio_set_output(struct nmk_gpio_chip *nmk_chip, - unsigned offset, int val) -{ - if (val) - writel(1 << offset, nmk_chip->addr + NMK_GPIO_DATS); - else - writel(1 << offset, nmk_chip->addr + NMK_GPIO_DATC); -} - -static void __nmk_gpio_make_output(struct nmk_gpio_chip *nmk_chip, - unsigned offset, int val) -{ - writel(1 << offset, nmk_chip->addr + NMK_GPIO_DIRS); - __nmk_gpio_set_output(nmk_chip, offset, val); -} - -static void __nmk_gpio_set_mode_safe(struct nmk_gpio_chip *nmk_chip, - unsigned offset, int gpio_mode, - bool glitch) -{ - u32 rwimsc = nmk_chip->rwimsc; - u32 fwimsc = nmk_chip->fwimsc; - - if (glitch && nmk_chip->set_ioforce) { - u32 bit = BIT(offset); - - /* Prevent spurious wakeups */ - writel(rwimsc & ~bit, nmk_chip->addr + NMK_GPIO_RWIMSC); - writel(fwimsc & ~bit, nmk_chip->addr + NMK_GPIO_FWIMSC); - - nmk_chip->set_ioforce(true); - } - - __nmk_gpio_set_mode(nmk_chip, offset, gpio_mode); - - if (glitch && nmk_chip->set_ioforce) { - nmk_chip->set_ioforce(false); - - writel(rwimsc, nmk_chip->addr + NMK_GPIO_RWIMSC); - writel(fwimsc, nmk_chip->addr + NMK_GPIO_FWIMSC); - } -} - -static void -nmk_gpio_disable_lazy_irq(struct nmk_gpio_chip *nmk_chip, unsigned offset) -{ - u32 falling = nmk_chip->fimsc & BIT(offset); - u32 rising = nmk_chip->rimsc & BIT(offset); - int gpio = nmk_chip->chip.base + offset; - int irq = NOMADIK_GPIO_TO_IRQ(gpio); - struct irq_data *d = irq_get_irq_data(irq); - - if (!rising && !falling) - return; - - if (!d || !irqd_irq_disabled(d)) - return; - - if (rising) { - nmk_chip->rimsc &= ~BIT(offset); - writel_relaxed(nmk_chip->rimsc, - nmk_chip->addr + NMK_GPIO_RIMSC); - } - - if (falling) { - nmk_chip->fimsc &= ~BIT(offset); - writel_relaxed(nmk_chip->fimsc, - nmk_chip->addr + NMK_GPIO_FIMSC); - } - - dev_dbg(nmk_chip->chip.dev, "%d: clearing interrupt mask\n", gpio); -} - -static void __nmk_config_pin(struct nmk_gpio_chip *nmk_chip, unsigned offset, - pin_cfg_t cfg, bool sleep, unsigned int *slpmregs) -{ - static const char *afnames[] = { - [NMK_GPIO_ALT_GPIO] = "GPIO", - [NMK_GPIO_ALT_A] = "A", - [NMK_GPIO_ALT_B] = "B", - [NMK_GPIO_ALT_C] = "C" - }; - static const char *pullnames[] = { - [NMK_GPIO_PULL_NONE] = "none", - [NMK_GPIO_PULL_UP] = "up", - [NMK_GPIO_PULL_DOWN] = "down", - [3] /* illegal */ = "??" - }; - static const char *slpmnames[] = { - [NMK_GPIO_SLPM_INPUT] = "input/wakeup", - [NMK_GPIO_SLPM_NOCHANGE] = "no-change/no-wakeup", - }; - - int pin = PIN_NUM(cfg); - int pull = PIN_PULL(cfg); - int af = PIN_ALT(cfg); - int slpm = PIN_SLPM(cfg); - int output = PIN_DIR(cfg); - int val = PIN_VAL(cfg); - bool glitch = af == NMK_GPIO_ALT_C; - - dev_dbg(nmk_chip->chip.dev, "pin %d [%#lx]: af %s, pull %s, slpm %s (%s%s)\n", - pin, cfg, afnames[af], pullnames[pull], slpmnames[slpm], - output ? "output " : "input", - output ? (val ? "high" : "low") : ""); - - if (sleep) { - int slpm_pull = PIN_SLPM_PULL(cfg); - int slpm_output = PIN_SLPM_DIR(cfg); - int slpm_val = PIN_SLPM_VAL(cfg); - - af = NMK_GPIO_ALT_GPIO; - - /* - * The SLPM_* values are normal values + 1 to allow zero to - * mean "same as normal". - */ - if (slpm_pull) - pull = slpm_pull - 1; - if (slpm_output) - output = slpm_output - 1; - if (slpm_val) - val = slpm_val - 1; - - dev_dbg(nmk_chip->chip.dev, "pin %d: sleep pull %s, dir %s, val %s\n", - pin, - slpm_pull ? pullnames[pull] : "same", - slpm_output ? (output ? "output" : "input") : "same", - slpm_val ? (val ? "high" : "low") : "same"); - } - - if (output) - __nmk_gpio_make_output(nmk_chip, offset, val); - else { - __nmk_gpio_make_input(nmk_chip, offset); - __nmk_gpio_set_pull(nmk_chip, offset, pull); - } - - __nmk_gpio_set_lowemi(nmk_chip, offset, PIN_LOWEMI(cfg)); - - /* - * If the pin is switching to altfunc, and there was an interrupt - * installed on it which has been lazy disabled, actually mask the - * interrupt to prevent spurious interrupts that would occur while the - * pin is under control of the peripheral. Only SKE does this. - */ - if (af != NMK_GPIO_ALT_GPIO) - nmk_gpio_disable_lazy_irq(nmk_chip, offset); - - /* - * If we've backed up the SLPM registers (glitch workaround), modify - * the backups since they will be restored. - */ - if (slpmregs) { - if (slpm == NMK_GPIO_SLPM_NOCHANGE) - slpmregs[nmk_chip->bank] |= BIT(offset); - else - slpmregs[nmk_chip->bank] &= ~BIT(offset); - } else - __nmk_gpio_set_slpm(nmk_chip, offset, slpm); - - __nmk_gpio_set_mode_safe(nmk_chip, offset, af, glitch); -} - -/* - * Safe sequence used to switch IOs between GPIO and Alternate-C mode: - * - Save SLPM registers - * - Set SLPM=0 for the IOs you want to switch and others to 1 - * - Configure the GPIO registers for the IOs that are being switched - * - Set IOFORCE=1 - * - Modify the AFLSA/B registers for the IOs that are being switched - * - Set IOFORCE=0 - * - Restore SLPM registers - * - Any spurious wake up event during switch sequence to be ignored and - * cleared - */ -static void nmk_gpio_glitch_slpm_init(unsigned int *slpm) -{ - int i; - - for (i = 0; i < NUM_BANKS; i++) { - struct nmk_gpio_chip *chip = nmk_gpio_chips[i]; - unsigned int temp = slpm[i]; - - if (!chip) - break; - - clk_enable(chip->clk); - - slpm[i] = readl(chip->addr + NMK_GPIO_SLPC); - writel(temp, chip->addr + NMK_GPIO_SLPC); - } -} - -static void nmk_gpio_glitch_slpm_restore(unsigned int *slpm) -{ - int i; - - for (i = 0; i < NUM_BANKS; i++) { - struct nmk_gpio_chip *chip = nmk_gpio_chips[i]; - - if (!chip) - break; - - writel(slpm[i], chip->addr + NMK_GPIO_SLPC); - - clk_disable(chip->clk); - } -} - -static int __nmk_config_pins(pin_cfg_t *cfgs, int num, bool sleep) -{ - static unsigned int slpm[NUM_BANKS]; - unsigned long flags; - bool glitch = false; - int ret = 0; - int i; - - for (i = 0; i < num; i++) { - if (PIN_ALT(cfgs[i]) == NMK_GPIO_ALT_C) { - glitch = true; - break; - } - } - - spin_lock_irqsave(&nmk_gpio_slpm_lock, flags); - - if (glitch) { - memset(slpm, 0xff, sizeof(slpm)); - - for (i = 0; i < num; i++) { - int pin = PIN_NUM(cfgs[i]); - int offset = pin % NMK_GPIO_PER_CHIP; - - if (PIN_ALT(cfgs[i]) == NMK_GPIO_ALT_C) - slpm[pin / NMK_GPIO_PER_CHIP] &= ~BIT(offset); - } - - nmk_gpio_glitch_slpm_init(slpm); - } - - for (i = 0; i < num; i++) { - struct nmk_gpio_chip *nmk_chip; - int pin = PIN_NUM(cfgs[i]); - - nmk_chip = nmk_gpio_chips[pin / NMK_GPIO_PER_CHIP]; - if (!nmk_chip) { - ret = -EINVAL; - break; - } - - clk_enable(nmk_chip->clk); - spin_lock(&nmk_chip->lock); - __nmk_config_pin(nmk_chip, pin % NMK_GPIO_PER_CHIP, - cfgs[i], sleep, glitch ? slpm : NULL); - spin_unlock(&nmk_chip->lock); - clk_disable(nmk_chip->clk); - } - - if (glitch) - nmk_gpio_glitch_slpm_restore(slpm); - - spin_unlock_irqrestore(&nmk_gpio_slpm_lock, flags); - - return ret; -} - -/** - * nmk_config_pin - configure a pin's mux attributes - * @cfg: pin confguration - * - * Configures a pin's mode (alternate function or GPIO), its pull up status, - * and its sleep mode based on the specified configuration. The @cfg is - * usually one of the SoC specific macros defined in mach/-pins.h. These - * are constructed using, and can be further enhanced with, the macros in - * plat/pincfg.h. - * - * If a pin's mode is set to GPIO, it is configured as an input to avoid - * side-effects. The gpio can be manipulated later using standard GPIO API - * calls. - */ -int nmk_config_pin(pin_cfg_t cfg, bool sleep) -{ - return __nmk_config_pins(&cfg, 1, sleep); -} -EXPORT_SYMBOL(nmk_config_pin); - -/** - * nmk_config_pins - configure several pins at once - * @cfgs: array of pin configurations - * @num: number of elments in the array - * - * Configures several pins using nmk_config_pin(). Refer to that function for - * further information. - */ -int nmk_config_pins(pin_cfg_t *cfgs, int num) -{ - return __nmk_config_pins(cfgs, num, false); -} -EXPORT_SYMBOL(nmk_config_pins); - -int nmk_config_pins_sleep(pin_cfg_t *cfgs, int num) -{ - return __nmk_config_pins(cfgs, num, true); -} -EXPORT_SYMBOL(nmk_config_pins_sleep); - -/** - * nmk_gpio_set_slpm() - configure the sleep mode of a pin - * @gpio: pin number - * @mode: NMK_GPIO_SLPM_INPUT or NMK_GPIO_SLPM_NOCHANGE, - * - * This register is actually in the pinmux layer, not the GPIO block itself. - * The GPIO1B_SLPM register defines the GPIO mode when SLEEP/DEEP-SLEEP - * mode is entered (i.e. when signal IOFORCE is HIGH by the platform code). - * Each GPIO can be configured to be forced into GPIO mode when IOFORCE is - * HIGH, overriding the normal setting defined by GPIO_AFSELx registers. - * When IOFORCE returns LOW (by software, after SLEEP/DEEP-SLEEP exit), - * the GPIOs return to the normal setting defined by GPIO_AFSELx registers. - * - * If @mode is NMK_GPIO_SLPM_INPUT, the corresponding GPIO is switched to GPIO - * mode when signal IOFORCE is HIGH (i.e. when SLEEP/DEEP-SLEEP mode is - * entered) regardless of the altfunction selected. Also wake-up detection is - * ENABLED. - * - * If @mode is NMK_GPIO_SLPM_NOCHANGE, the corresponding GPIO remains - * controlled by NMK_GPIO_DATC, NMK_GPIO_DATS, NMK_GPIO_DIR, NMK_GPIO_PDIS - * (for altfunction GPIO) or respective on-chip peripherals (for other - * altfuncs) when IOFORCE is HIGH. Also wake-up detection DISABLED. - * - * Note that enable_irq_wake() will automatically enable wakeup detection. - */ -int nmk_gpio_set_slpm(int gpio, enum nmk_gpio_slpm mode) -{ - struct nmk_gpio_chip *nmk_chip; - unsigned long flags; - - nmk_chip = nmk_gpio_chips[gpio / NMK_GPIO_PER_CHIP]; - if (!nmk_chip) - return -EINVAL; - - clk_enable(nmk_chip->clk); - spin_lock_irqsave(&nmk_gpio_slpm_lock, flags); - spin_lock(&nmk_chip->lock); - - __nmk_gpio_set_slpm(nmk_chip, gpio % NMK_GPIO_PER_CHIP, mode); - - spin_unlock(&nmk_chip->lock); - spin_unlock_irqrestore(&nmk_gpio_slpm_lock, flags); - clk_disable(nmk_chip->clk); - - return 0; -} - -/** - * nmk_gpio_set_pull() - enable/disable pull up/down on a gpio - * @gpio: pin number - * @pull: one of NMK_GPIO_PULL_DOWN, NMK_GPIO_PULL_UP, and NMK_GPIO_PULL_NONE - * - * Enables/disables pull up/down on a specified pin. This only takes effect if - * the pin is configured as an input (either explicitly or by the alternate - * function). - * - * NOTE: If enabling the pull up/down, the caller must ensure that the GPIO is - * configured as an input. Otherwise, due to the way the controller registers - * work, this function will change the value output on the pin. - */ -int nmk_gpio_set_pull(int gpio, enum nmk_gpio_pull pull) -{ - struct nmk_gpio_chip *nmk_chip; - unsigned long flags; - - nmk_chip = nmk_gpio_chips[gpio / NMK_GPIO_PER_CHIP]; - if (!nmk_chip) - return -EINVAL; - - clk_enable(nmk_chip->clk); - spin_lock_irqsave(&nmk_chip->lock, flags); - __nmk_gpio_set_pull(nmk_chip, gpio % NMK_GPIO_PER_CHIP, pull); - spin_unlock_irqrestore(&nmk_chip->lock, flags); - clk_disable(nmk_chip->clk); - - return 0; -} - -/* Mode functions */ -/** - * nmk_gpio_set_mode() - set the mux mode of a gpio pin - * @gpio: pin number - * @gpio_mode: one of NMK_GPIO_ALT_GPIO, NMK_GPIO_ALT_A, - * NMK_GPIO_ALT_B, and NMK_GPIO_ALT_C - * - * Sets the mode of the specified pin to one of the alternate functions or - * plain GPIO. - */ -int nmk_gpio_set_mode(int gpio, int gpio_mode) -{ - struct nmk_gpio_chip *nmk_chip; - unsigned long flags; - - nmk_chip = nmk_gpio_chips[gpio / NMK_GPIO_PER_CHIP]; - if (!nmk_chip) - return -EINVAL; - - clk_enable(nmk_chip->clk); - spin_lock_irqsave(&nmk_chip->lock, flags); - __nmk_gpio_set_mode(nmk_chip, gpio % NMK_GPIO_PER_CHIP, gpio_mode); - spin_unlock_irqrestore(&nmk_chip->lock, flags); - clk_disable(nmk_chip->clk); - - return 0; -} -EXPORT_SYMBOL(nmk_gpio_set_mode); - -int nmk_gpio_get_mode(int gpio) -{ - struct nmk_gpio_chip *nmk_chip; - u32 afunc, bfunc, bit; - - nmk_chip = nmk_gpio_chips[gpio / NMK_GPIO_PER_CHIP]; - if (!nmk_chip) - return -EINVAL; - - bit = 1 << (gpio % NMK_GPIO_PER_CHIP); - - clk_enable(nmk_chip->clk); - - afunc = readl(nmk_chip->addr + NMK_GPIO_AFSLA) & bit; - bfunc = readl(nmk_chip->addr + NMK_GPIO_AFSLB) & bit; - - clk_disable(nmk_chip->clk); - - return (afunc ? NMK_GPIO_ALT_A : 0) | (bfunc ? NMK_GPIO_ALT_B : 0); -} -EXPORT_SYMBOL(nmk_gpio_get_mode); - - -/* IRQ functions */ -static inline int nmk_gpio_get_bitmask(int gpio) -{ - return 1 << (gpio % NMK_GPIO_PER_CHIP); -} - -static void nmk_gpio_irq_ack(struct irq_data *d) -{ - struct nmk_gpio_chip *nmk_chip; - - nmk_chip = irq_data_get_irq_chip_data(d); - if (!nmk_chip) - return; - - clk_enable(nmk_chip->clk); - writel(nmk_gpio_get_bitmask(d->hwirq), nmk_chip->addr + NMK_GPIO_IC); - clk_disable(nmk_chip->clk); -} - -enum nmk_gpio_irq_type { - NORMAL, - WAKE, -}; - -static void __nmk_gpio_irq_modify(struct nmk_gpio_chip *nmk_chip, - int gpio, enum nmk_gpio_irq_type which, - bool enable) -{ - u32 bitmask = nmk_gpio_get_bitmask(gpio); - u32 *rimscval; - u32 *fimscval; - u32 rimscreg; - u32 fimscreg; - - if (which == NORMAL) { - rimscreg = NMK_GPIO_RIMSC; - fimscreg = NMK_GPIO_FIMSC; - rimscval = &nmk_chip->rimsc; - fimscval = &nmk_chip->fimsc; - } else { - rimscreg = NMK_GPIO_RWIMSC; - fimscreg = NMK_GPIO_FWIMSC; - rimscval = &nmk_chip->rwimsc; - fimscval = &nmk_chip->fwimsc; - } - - /* we must individually set/clear the two edges */ - if (nmk_chip->edge_rising & bitmask) { - if (enable) - *rimscval |= bitmask; - else - *rimscval &= ~bitmask; - writel(*rimscval, nmk_chip->addr + rimscreg); - } - if (nmk_chip->edge_falling & bitmask) { - if (enable) - *fimscval |= bitmask; - else - *fimscval &= ~bitmask; - writel(*fimscval, nmk_chip->addr + fimscreg); - } -} - -static void __nmk_gpio_set_wake(struct nmk_gpio_chip *nmk_chip, - int gpio, bool on) -{ - /* - * Ensure WAKEUP_ENABLE is on. No need to disable it if wakeup is - * disabled, since setting SLPM to 1 increases power consumption, and - * wakeup is anyhow controlled by the RIMSC and FIMSC registers. - */ - if (nmk_chip->sleepmode && on) { - __nmk_gpio_set_slpm(nmk_chip, gpio % nmk_chip->chip.base, - NMK_GPIO_SLPM_WAKEUP_ENABLE); - } - - __nmk_gpio_irq_modify(nmk_chip, gpio, WAKE, on); -} - -static int nmk_gpio_irq_maskunmask(struct irq_data *d, bool enable) -{ - struct nmk_gpio_chip *nmk_chip; - unsigned long flags; - u32 bitmask; - - nmk_chip = irq_data_get_irq_chip_data(d); - bitmask = nmk_gpio_get_bitmask(d->hwirq); - if (!nmk_chip) - return -EINVAL; - - clk_enable(nmk_chip->clk); - spin_lock_irqsave(&nmk_gpio_slpm_lock, flags); - spin_lock(&nmk_chip->lock); - - __nmk_gpio_irq_modify(nmk_chip, d->hwirq, NORMAL, enable); - - if (!(nmk_chip->real_wake & bitmask)) - __nmk_gpio_set_wake(nmk_chip, d->hwirq, enable); - - spin_unlock(&nmk_chip->lock); - spin_unlock_irqrestore(&nmk_gpio_slpm_lock, flags); - clk_disable(nmk_chip->clk); - - return 0; -} - -static void nmk_gpio_irq_mask(struct irq_data *d) -{ - nmk_gpio_irq_maskunmask(d, false); -} - -static void nmk_gpio_irq_unmask(struct irq_data *d) -{ - nmk_gpio_irq_maskunmask(d, true); -} - -static int nmk_gpio_irq_set_wake(struct irq_data *d, unsigned int on) -{ - struct nmk_gpio_chip *nmk_chip; - unsigned long flags; - u32 bitmask; - - nmk_chip = irq_data_get_irq_chip_data(d); - if (!nmk_chip) - return -EINVAL; - bitmask = nmk_gpio_get_bitmask(d->hwirq); - - clk_enable(nmk_chip->clk); - spin_lock_irqsave(&nmk_gpio_slpm_lock, flags); - spin_lock(&nmk_chip->lock); - - if (irqd_irq_disabled(d)) - __nmk_gpio_set_wake(nmk_chip, d->hwirq, on); - - if (on) - nmk_chip->real_wake |= bitmask; - else - nmk_chip->real_wake &= ~bitmask; - - spin_unlock(&nmk_chip->lock); - spin_unlock_irqrestore(&nmk_gpio_slpm_lock, flags); - clk_disable(nmk_chip->clk); - - return 0; -} - -static int nmk_gpio_irq_set_type(struct irq_data *d, unsigned int type) -{ - bool enabled = !irqd_irq_disabled(d); - bool wake = irqd_is_wakeup_set(d); - struct nmk_gpio_chip *nmk_chip; - unsigned long flags; - u32 bitmask; - - nmk_chip = irq_data_get_irq_chip_data(d); - bitmask = nmk_gpio_get_bitmask(d->hwirq); - if (!nmk_chip) - return -EINVAL; - if (type & IRQ_TYPE_LEVEL_HIGH) - return -EINVAL; - if (type & IRQ_TYPE_LEVEL_LOW) - return -EINVAL; - - clk_enable(nmk_chip->clk); - spin_lock_irqsave(&nmk_chip->lock, flags); - - if (enabled) - __nmk_gpio_irq_modify(nmk_chip, d->hwirq, NORMAL, false); - - if (enabled || wake) - __nmk_gpio_irq_modify(nmk_chip, d->hwirq, WAKE, false); - - nmk_chip->edge_rising &= ~bitmask; - if (type & IRQ_TYPE_EDGE_RISING) - nmk_chip->edge_rising |= bitmask; - - nmk_chip->edge_falling &= ~bitmask; - if (type & IRQ_TYPE_EDGE_FALLING) - nmk_chip->edge_falling |= bitmask; - - if (enabled) - __nmk_gpio_irq_modify(nmk_chip, d->hwirq, NORMAL, true); - - if (enabled || wake) - __nmk_gpio_irq_modify(nmk_chip, d->hwirq, WAKE, true); - - spin_unlock_irqrestore(&nmk_chip->lock, flags); - clk_disable(nmk_chip->clk); - - return 0; -} - -static unsigned int nmk_gpio_irq_startup(struct irq_data *d) -{ - struct nmk_gpio_chip *nmk_chip = irq_data_get_irq_chip_data(d); - - clk_enable(nmk_chip->clk); - nmk_gpio_irq_unmask(d); - return 0; -} - -static void nmk_gpio_irq_shutdown(struct irq_data *d) -{ - struct nmk_gpio_chip *nmk_chip = irq_data_get_irq_chip_data(d); - - nmk_gpio_irq_mask(d); - clk_disable(nmk_chip->clk); -} - -static struct irq_chip nmk_gpio_irq_chip = { - .name = "Nomadik-GPIO", - .irq_ack = nmk_gpio_irq_ack, - .irq_mask = nmk_gpio_irq_mask, - .irq_unmask = nmk_gpio_irq_unmask, - .irq_set_type = nmk_gpio_irq_set_type, - .irq_set_wake = nmk_gpio_irq_set_wake, - .irq_startup = nmk_gpio_irq_startup, - .irq_shutdown = nmk_gpio_irq_shutdown, -}; - -static void __nmk_gpio_irq_handler(unsigned int irq, struct irq_desc *desc, - u32 status) -{ - struct nmk_gpio_chip *nmk_chip; - struct irq_chip *host_chip = irq_get_chip(irq); - unsigned int first_irq; - - chained_irq_enter(host_chip, desc); - - nmk_chip = irq_get_handler_data(irq); - first_irq = nmk_chip->domain->revmap_data.legacy.first_irq; - while (status) { - int bit = __ffs(status); - - generic_handle_irq(first_irq + bit); - status &= ~BIT(bit); - } - - chained_irq_exit(host_chip, desc); -} - -static void nmk_gpio_irq_handler(unsigned int irq, struct irq_desc *desc) -{ - struct nmk_gpio_chip *nmk_chip = irq_get_handler_data(irq); - u32 status; - - clk_enable(nmk_chip->clk); - status = readl(nmk_chip->addr + NMK_GPIO_IS); - clk_disable(nmk_chip->clk); - - __nmk_gpio_irq_handler(irq, desc, status); -} - -static void nmk_gpio_secondary_irq_handler(unsigned int irq, - struct irq_desc *desc) -{ - struct nmk_gpio_chip *nmk_chip = irq_get_handler_data(irq); - u32 status = nmk_chip->get_secondary_status(nmk_chip->bank); - - __nmk_gpio_irq_handler(irq, desc, status); -} - -static int nmk_gpio_init_irq(struct nmk_gpio_chip *nmk_chip) -{ - irq_set_chained_handler(nmk_chip->parent_irq, nmk_gpio_irq_handler); - irq_set_handler_data(nmk_chip->parent_irq, nmk_chip); - - if (nmk_chip->secondary_parent_irq >= 0) { - irq_set_chained_handler(nmk_chip->secondary_parent_irq, - nmk_gpio_secondary_irq_handler); - irq_set_handler_data(nmk_chip->secondary_parent_irq, nmk_chip); - } - - return 0; -} - -/* I/O Functions */ -static int nmk_gpio_make_input(struct gpio_chip *chip, unsigned offset) -{ - struct nmk_gpio_chip *nmk_chip = - container_of(chip, struct nmk_gpio_chip, chip); - - clk_enable(nmk_chip->clk); - - writel(1 << offset, nmk_chip->addr + NMK_GPIO_DIRC); - - clk_disable(nmk_chip->clk); - - return 0; -} - -static int nmk_gpio_get_input(struct gpio_chip *chip, unsigned offset) -{ - struct nmk_gpio_chip *nmk_chip = - container_of(chip, struct nmk_gpio_chip, chip); - u32 bit = 1 << offset; - int value; - - clk_enable(nmk_chip->clk); - - value = (readl(nmk_chip->addr + NMK_GPIO_DAT) & bit) != 0; - - clk_disable(nmk_chip->clk); - - return value; -} - -static void nmk_gpio_set_output(struct gpio_chip *chip, unsigned offset, - int val) -{ - struct nmk_gpio_chip *nmk_chip = - container_of(chip, struct nmk_gpio_chip, chip); - - clk_enable(nmk_chip->clk); - - __nmk_gpio_set_output(nmk_chip, offset, val); - - clk_disable(nmk_chip->clk); -} - -static int nmk_gpio_make_output(struct gpio_chip *chip, unsigned offset, - int val) -{ - struct nmk_gpio_chip *nmk_chip = - container_of(chip, struct nmk_gpio_chip, chip); - - clk_enable(nmk_chip->clk); - - __nmk_gpio_make_output(nmk_chip, offset, val); - - clk_disable(nmk_chip->clk); - - return 0; -} - -static int nmk_gpio_to_irq(struct gpio_chip *chip, unsigned offset) -{ - struct nmk_gpio_chip *nmk_chip = - container_of(chip, struct nmk_gpio_chip, chip); - - return irq_find_mapping(nmk_chip->domain, offset); -} - -#ifdef CONFIG_DEBUG_FS - -#include - -static void nmk_gpio_dbg_show(struct seq_file *s, struct gpio_chip *chip) -{ - int mode; - unsigned i; - unsigned gpio = chip->base; - int is_out; - struct nmk_gpio_chip *nmk_chip = - container_of(chip, struct nmk_gpio_chip, chip); - const char *modes[] = { - [NMK_GPIO_ALT_GPIO] = "gpio", - [NMK_GPIO_ALT_A] = "altA", - [NMK_GPIO_ALT_B] = "altB", - [NMK_GPIO_ALT_C] = "altC", - }; - - clk_enable(nmk_chip->clk); - - for (i = 0; i < chip->ngpio; i++, gpio++) { - const char *label = gpiochip_is_requested(chip, i); - bool pull; - u32 bit = 1 << i; - - is_out = readl(nmk_chip->addr + NMK_GPIO_DIR) & bit; - pull = !(readl(nmk_chip->addr + NMK_GPIO_PDIS) & bit); - mode = nmk_gpio_get_mode(gpio); - seq_printf(s, " gpio-%-3d (%-20.20s) %s %s %s %s", - gpio, label ?: "(none)", - is_out ? "out" : "in ", - chip->get - ? (chip->get(chip, i) ? "hi" : "lo") - : "? ", - (mode < 0) ? "unknown" : modes[mode], - pull ? "pull" : "none"); - - if (label && !is_out) { - int irq = gpio_to_irq(gpio); - struct irq_desc *desc = irq_to_desc(irq); - - /* This races with request_irq(), set_irq_type(), - * and set_irq_wake() ... but those are "rare". - */ - if (irq >= 0 && desc->action) { - char *trigger; - u32 bitmask = nmk_gpio_get_bitmask(gpio); - - if (nmk_chip->edge_rising & bitmask) - trigger = "edge-rising"; - else if (nmk_chip->edge_falling & bitmask) - trigger = "edge-falling"; - else - trigger = "edge-undefined"; - - seq_printf(s, " irq-%d %s%s", - irq, trigger, - irqd_is_wakeup_set(&desc->irq_data) - ? " wakeup" : ""); - } - } - - seq_printf(s, "\n"); - } - - clk_disable(nmk_chip->clk); -} - -#else -#define nmk_gpio_dbg_show NULL -#endif - -/* This structure is replicated for each GPIO block allocated at probe time */ -static struct gpio_chip nmk_gpio_template = { - .direction_input = nmk_gpio_make_input, - .get = nmk_gpio_get_input, - .direction_output = nmk_gpio_make_output, - .set = nmk_gpio_set_output, - .to_irq = nmk_gpio_to_irq, - .dbg_show = nmk_gpio_dbg_show, - .can_sleep = 0, -}; - -void nmk_gpio_clocks_enable(void) -{ - int i; - - for (i = 0; i < NUM_BANKS; i++) { - struct nmk_gpio_chip *chip = nmk_gpio_chips[i]; - - if (!chip) - continue; - - clk_enable(chip->clk); - } -} - -void nmk_gpio_clocks_disable(void) -{ - int i; - - for (i = 0; i < NUM_BANKS; i++) { - struct nmk_gpio_chip *chip = nmk_gpio_chips[i]; - - if (!chip) - continue; - - clk_disable(chip->clk); - } -} - -/* - * Called from the suspend/resume path to only keep the real wakeup interrupts - * (those that have had set_irq_wake() called on them) as wakeup interrupts, - * and not the rest of the interrupts which we needed to have as wakeups for - * cpuidle. - * - * PM ops are not used since this needs to be done at the end, after all the - * other drivers are done with their suspend callbacks. - */ -void nmk_gpio_wakeups_suspend(void) -{ - int i; - - for (i = 0; i < NUM_BANKS; i++) { - struct nmk_gpio_chip *chip = nmk_gpio_chips[i]; - - if (!chip) - break; - - clk_enable(chip->clk); - - writel(chip->rwimsc & chip->real_wake, - chip->addr + NMK_GPIO_RWIMSC); - writel(chip->fwimsc & chip->real_wake, - chip->addr + NMK_GPIO_FWIMSC); - - clk_disable(chip->clk); - } -} - -void nmk_gpio_wakeups_resume(void) -{ - int i; - - for (i = 0; i < NUM_BANKS; i++) { - struct nmk_gpio_chip *chip = nmk_gpio_chips[i]; - - if (!chip) - break; - - clk_enable(chip->clk); - - writel(chip->rwimsc, chip->addr + NMK_GPIO_RWIMSC); - writel(chip->fwimsc, chip->addr + NMK_GPIO_FWIMSC); - - clk_disable(chip->clk); - } -} - -/* - * Read the pull up/pull down status. - * A bit set in 'pull_up' means that pull up - * is selected if pull is enabled in PDIS register. - * Note: only pull up/down set via this driver can - * be detected due to HW limitations. - */ -void nmk_gpio_read_pull(int gpio_bank, u32 *pull_up) -{ - if (gpio_bank < NUM_BANKS) { - struct nmk_gpio_chip *chip = nmk_gpio_chips[gpio_bank]; - - if (!chip) - return; - - *pull_up = chip->pull_up; - } -} - -int nmk_gpio_irq_map(struct irq_domain *d, unsigned int irq, - irq_hw_number_t hwirq) -{ - struct nmk_gpio_chip *nmk_chip = d->host_data; - - if (!nmk_chip) - return -EINVAL; - - irq_set_chip_and_handler(irq, &nmk_gpio_irq_chip, handle_edge_irq); - set_irq_flags(irq, IRQF_VALID); - irq_set_chip_data(irq, nmk_chip); - irq_set_irq_type(irq, IRQ_TYPE_EDGE_FALLING); - - return 0; -} - -const struct irq_domain_ops nmk_gpio_irq_simple_ops = { - .map = nmk_gpio_irq_map, - .xlate = irq_domain_xlate_twocell, -}; - -static int __devinit nmk_gpio_probe(struct platform_device *dev) -{ - struct nmk_gpio_platform_data *pdata = dev->dev.platform_data; - struct device_node *np = dev->dev.of_node; - struct nmk_gpio_chip *nmk_chip; - struct gpio_chip *chip; - struct resource *res; - struct clk *clk; - int secondary_irq; - void __iomem *base; - int irq; - int ret; - - if (!pdata && !np) { - dev_err(&dev->dev, "No platform data or device tree found\n"); - return -ENODEV; - } - - if (np) { - pdata = kzalloc(sizeof(*pdata), GFP_KERNEL); - if (!pdata) - return -ENOMEM; - - if (of_get_property(np, "supports-sleepmode", NULL)) - pdata->supports_sleepmode = true; - - if (of_property_read_u32(np, "gpio-bank", &dev->id)) { - dev_err(&dev->dev, "gpio-bank property not found\n"); - ret = -EINVAL; - goto out; - } - - pdata->first_gpio = dev->id * NMK_GPIO_PER_CHIP; - pdata->num_gpio = NMK_GPIO_PER_CHIP; - } - - res = platform_get_resource(dev, IORESOURCE_MEM, 0); - if (!res) { - ret = -ENOENT; - goto out; - } - - irq = platform_get_irq(dev, 0); - if (irq < 0) { - ret = irq; - goto out; - } - - secondary_irq = platform_get_irq(dev, 1); - if (secondary_irq >= 0 && !pdata->get_secondary_status) { - ret = -EINVAL; - goto out; - } - - if (request_mem_region(res->start, resource_size(res), - dev_name(&dev->dev)) == NULL) { - ret = -EBUSY; - goto out; - } - - base = ioremap(res->start, resource_size(res)); - if (!base) { - ret = -ENOMEM; - goto out_release; - } - - clk = clk_get(&dev->dev, NULL); - if (IS_ERR(clk)) { - ret = PTR_ERR(clk); - goto out_unmap; - } - - nmk_chip = kzalloc(sizeof(*nmk_chip), GFP_KERNEL); - if (!nmk_chip) { - ret = -ENOMEM; - goto out_clk; - } - - /* - * The virt address in nmk_chip->addr is in the nomadik register space, - * so we can simply convert the resource address, without remapping - */ - nmk_chip->bank = dev->id; - nmk_chip->clk = clk; - nmk_chip->addr = base; - nmk_chip->chip = nmk_gpio_template; - nmk_chip->parent_irq = irq; - nmk_chip->secondary_parent_irq = secondary_irq; - nmk_chip->get_secondary_status = pdata->get_secondary_status; - nmk_chip->set_ioforce = pdata->set_ioforce; - nmk_chip->sleepmode = pdata->supports_sleepmode; - spin_lock_init(&nmk_chip->lock); - - chip = &nmk_chip->chip; - chip->base = pdata->first_gpio; - chip->ngpio = pdata->num_gpio; - chip->label = pdata->name ?: dev_name(&dev->dev); - chip->dev = &dev->dev; - chip->owner = THIS_MODULE; - - clk_enable(nmk_chip->clk); - nmk_chip->lowemi = readl_relaxed(nmk_chip->addr + NMK_GPIO_LOWEMI); - clk_disable(nmk_chip->clk); - - chip->of_node = np; - - ret = gpiochip_add(&nmk_chip->chip); - if (ret) - goto out_free; - - BUG_ON(nmk_chip->bank >= ARRAY_SIZE(nmk_gpio_chips)); - - nmk_gpio_chips[nmk_chip->bank] = nmk_chip; - - platform_set_drvdata(dev, nmk_chip); - - nmk_chip->domain = irq_domain_add_legacy(np, NMK_GPIO_PER_CHIP, - NOMADIK_GPIO_TO_IRQ(pdata->first_gpio), - 0, &nmk_gpio_irq_simple_ops, nmk_chip); - if (!nmk_chip->domain) { - pr_err("%s: Failed to create irqdomain\n", np->full_name); - ret = -ENOSYS; - goto out_free; - } - - nmk_gpio_init_irq(nmk_chip); - - dev_info(&dev->dev, "at address %p\n", nmk_chip->addr); - - return 0; - -out_free: - kfree(nmk_chip); -out_clk: - clk_disable(clk); - clk_put(clk); -out_unmap: - iounmap(base); -out_release: - release_mem_region(res->start, resource_size(res)); -out: - dev_err(&dev->dev, "Failure %i for GPIO %i-%i\n", ret, - pdata->first_gpio, pdata->first_gpio+31); - if (np) - kfree(pdata); - - return ret; -} - -static const struct of_device_id nmk_gpio_match[] = { - { .compatible = "st,nomadik-gpio", }, - {} -}; - -static struct platform_driver nmk_gpio_driver = { - .driver = { - .owner = THIS_MODULE, - .name = "gpio", - .of_match_table = nmk_gpio_match, - }, - .probe = nmk_gpio_probe, -}; - -static int __init nmk_gpio_init(void) -{ - return platform_driver_register(&nmk_gpio_driver); -} - -core_initcall(nmk_gpio_init); - -MODULE_AUTHOR("Prafulla WADASKAR and Alessandro Rubini"); -MODULE_DESCRIPTION("Nomadik GPIO Driver"); -MODULE_LICENSE("GPL"); diff --git a/drivers/pinctrl/Makefile b/drivers/pinctrl/Makefile index 8e3c95a02fb..dd797caf579 100644 --- a/drivers/pinctrl/Makefile +++ b/drivers/pinctrl/Makefile @@ -11,6 +11,7 @@ endif obj-$(CONFIG_GENERIC_PINCONF) += pinconf-generic.o obj-$(CONFIG_PINCTRL_PXA3xx) += pinctrl-pxa3xx.o obj-$(CONFIG_PINCTRL_MMP2) += pinctrl-mmp2.o +obj-$(CONFIG_PLAT_NOMADIK) += pinctrl-nomadik.o obj-$(CONFIG_PINCTRL_PXA168) += pinctrl-pxa168.o obj-$(CONFIG_PINCTRL_PXA910) += pinctrl-pxa910.o obj-$(CONFIG_PINCTRL_SIRF) += pinctrl-sirf.o diff --git a/drivers/pinctrl/pinctrl-nomadik.c b/drivers/pinctrl/pinctrl-nomadik.c new file mode 100644 index 00000000000..9b126b6d79c --- /dev/null +++ b/drivers/pinctrl/pinctrl-nomadik.c @@ -0,0 +1,1306 @@ +/* + * Generic GPIO driver for logic cells found in the Nomadik SoC + * + * Copyright (C) 2008,2009 STMicroelectronics + * Copyright (C) 2009 Alessandro Rubini + * Rewritten based on work by Prafulla WADASKAR + * Copyright (C) 2011 Linus Walleij + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#include + +#include +#include + +/* + * The GPIO module in the Nomadik family of Systems-on-Chip is an + * AMBA device, managing 32 pins and alternate functions. The logic block + * is currently used in the Nomadik and ux500. + * + * Symbols in this file are called "nmk_gpio" for "nomadik gpio" + */ + +#define NMK_GPIO_PER_CHIP 32 + +struct nmk_gpio_chip { + struct gpio_chip chip; + struct irq_domain *domain; + void __iomem *addr; + struct clk *clk; + unsigned int bank; + unsigned int parent_irq; + int secondary_parent_irq; + u32 (*get_secondary_status)(unsigned int bank); + void (*set_ioforce)(bool enable); + spinlock_t lock; + bool sleepmode; + /* Keep track of configured edges */ + u32 edge_rising; + u32 edge_falling; + u32 real_wake; + u32 rwimsc; + u32 fwimsc; + u32 rimsc; + u32 fimsc; + u32 pull_up; + u32 lowemi; +}; + +static struct nmk_gpio_chip * +nmk_gpio_chips[DIV_ROUND_UP(ARCH_NR_GPIOS, NMK_GPIO_PER_CHIP)]; + +static DEFINE_SPINLOCK(nmk_gpio_slpm_lock); + +#define NUM_BANKS ARRAY_SIZE(nmk_gpio_chips) + +static void __nmk_gpio_set_mode(struct nmk_gpio_chip *nmk_chip, + unsigned offset, int gpio_mode) +{ + u32 bit = 1 << offset; + u32 afunc, bfunc; + + afunc = readl(nmk_chip->addr + NMK_GPIO_AFSLA) & ~bit; + bfunc = readl(nmk_chip->addr + NMK_GPIO_AFSLB) & ~bit; + if (gpio_mode & NMK_GPIO_ALT_A) + afunc |= bit; + if (gpio_mode & NMK_GPIO_ALT_B) + bfunc |= bit; + writel(afunc, nmk_chip->addr + NMK_GPIO_AFSLA); + writel(bfunc, nmk_chip->addr + NMK_GPIO_AFSLB); +} + +static void __nmk_gpio_set_slpm(struct nmk_gpio_chip *nmk_chip, + unsigned offset, enum nmk_gpio_slpm mode) +{ + u32 bit = 1 << offset; + u32 slpm; + + slpm = readl(nmk_chip->addr + NMK_GPIO_SLPC); + if (mode == NMK_GPIO_SLPM_NOCHANGE) + slpm |= bit; + else + slpm &= ~bit; + writel(slpm, nmk_chip->addr + NMK_GPIO_SLPC); +} + +static void __nmk_gpio_set_pull(struct nmk_gpio_chip *nmk_chip, + unsigned offset, enum nmk_gpio_pull pull) +{ + u32 bit = 1 << offset; + u32 pdis; + + pdis = readl(nmk_chip->addr + NMK_GPIO_PDIS); + if (pull == NMK_GPIO_PULL_NONE) { + pdis |= bit; + nmk_chip->pull_up &= ~bit; + } else { + pdis &= ~bit; + } + + writel(pdis, nmk_chip->addr + NMK_GPIO_PDIS); + + if (pull == NMK_GPIO_PULL_UP) { + nmk_chip->pull_up |= bit; + writel(bit, nmk_chip->addr + NMK_GPIO_DATS); + } else if (pull == NMK_GPIO_PULL_DOWN) { + nmk_chip->pull_up &= ~bit; + writel(bit, nmk_chip->addr + NMK_GPIO_DATC); + } +} + +static void __nmk_gpio_set_lowemi(struct nmk_gpio_chip *nmk_chip, + unsigned offset, bool lowemi) +{ + u32 bit = BIT(offset); + bool enabled = nmk_chip->lowemi & bit; + + if (lowemi == enabled) + return; + + if (lowemi) + nmk_chip->lowemi |= bit; + else + nmk_chip->lowemi &= ~bit; + + writel_relaxed(nmk_chip->lowemi, + nmk_chip->addr + NMK_GPIO_LOWEMI); +} + +static void __nmk_gpio_make_input(struct nmk_gpio_chip *nmk_chip, + unsigned offset) +{ + writel(1 << offset, nmk_chip->addr + NMK_GPIO_DIRC); +} + +static void __nmk_gpio_set_output(struct nmk_gpio_chip *nmk_chip, + unsigned offset, int val) +{ + if (val) + writel(1 << offset, nmk_chip->addr + NMK_GPIO_DATS); + else + writel(1 << offset, nmk_chip->addr + NMK_GPIO_DATC); +} + +static void __nmk_gpio_make_output(struct nmk_gpio_chip *nmk_chip, + unsigned offset, int val) +{ + writel(1 << offset, nmk_chip->addr + NMK_GPIO_DIRS); + __nmk_gpio_set_output(nmk_chip, offset, val); +} + +static void __nmk_gpio_set_mode_safe(struct nmk_gpio_chip *nmk_chip, + unsigned offset, int gpio_mode, + bool glitch) +{ + u32 rwimsc = nmk_chip->rwimsc; + u32 fwimsc = nmk_chip->fwimsc; + + if (glitch && nmk_chip->set_ioforce) { + u32 bit = BIT(offset); + + /* Prevent spurious wakeups */ + writel(rwimsc & ~bit, nmk_chip->addr + NMK_GPIO_RWIMSC); + writel(fwimsc & ~bit, nmk_chip->addr + NMK_GPIO_FWIMSC); + + nmk_chip->set_ioforce(true); + } + + __nmk_gpio_set_mode(nmk_chip, offset, gpio_mode); + + if (glitch && nmk_chip->set_ioforce) { + nmk_chip->set_ioforce(false); + + writel(rwimsc, nmk_chip->addr + NMK_GPIO_RWIMSC); + writel(fwimsc, nmk_chip->addr + NMK_GPIO_FWIMSC); + } +} + +static void +nmk_gpio_disable_lazy_irq(struct nmk_gpio_chip *nmk_chip, unsigned offset) +{ + u32 falling = nmk_chip->fimsc & BIT(offset); + u32 rising = nmk_chip->rimsc & BIT(offset); + int gpio = nmk_chip->chip.base + offset; + int irq = NOMADIK_GPIO_TO_IRQ(gpio); + struct irq_data *d = irq_get_irq_data(irq); + + if (!rising && !falling) + return; + + if (!d || !irqd_irq_disabled(d)) + return; + + if (rising) { + nmk_chip->rimsc &= ~BIT(offset); + writel_relaxed(nmk_chip->rimsc, + nmk_chip->addr + NMK_GPIO_RIMSC); + } + + if (falling) { + nmk_chip->fimsc &= ~BIT(offset); + writel_relaxed(nmk_chip->fimsc, + nmk_chip->addr + NMK_GPIO_FIMSC); + } + + dev_dbg(nmk_chip->chip.dev, "%d: clearing interrupt mask\n", gpio); +} + +static void __nmk_config_pin(struct nmk_gpio_chip *nmk_chip, unsigned offset, + pin_cfg_t cfg, bool sleep, unsigned int *slpmregs) +{ + static const char *afnames[] = { + [NMK_GPIO_ALT_GPIO] = "GPIO", + [NMK_GPIO_ALT_A] = "A", + [NMK_GPIO_ALT_B] = "B", + [NMK_GPIO_ALT_C] = "C" + }; + static const char *pullnames[] = { + [NMK_GPIO_PULL_NONE] = "none", + [NMK_GPIO_PULL_UP] = "up", + [NMK_GPIO_PULL_DOWN] = "down", + [3] /* illegal */ = "??" + }; + static const char *slpmnames[] = { + [NMK_GPIO_SLPM_INPUT] = "input/wakeup", + [NMK_GPIO_SLPM_NOCHANGE] = "no-change/no-wakeup", + }; + + int pin = PIN_NUM(cfg); + int pull = PIN_PULL(cfg); + int af = PIN_ALT(cfg); + int slpm = PIN_SLPM(cfg); + int output = PIN_DIR(cfg); + int val = PIN_VAL(cfg); + bool glitch = af == NMK_GPIO_ALT_C; + + dev_dbg(nmk_chip->chip.dev, "pin %d [%#lx]: af %s, pull %s, slpm %s (%s%s)\n", + pin, cfg, afnames[af], pullnames[pull], slpmnames[slpm], + output ? "output " : "input", + output ? (val ? "high" : "low") : ""); + + if (sleep) { + int slpm_pull = PIN_SLPM_PULL(cfg); + int slpm_output = PIN_SLPM_DIR(cfg); + int slpm_val = PIN_SLPM_VAL(cfg); + + af = NMK_GPIO_ALT_GPIO; + + /* + * The SLPM_* values are normal values + 1 to allow zero to + * mean "same as normal". + */ + if (slpm_pull) + pull = slpm_pull - 1; + if (slpm_output) + output = slpm_output - 1; + if (slpm_val) + val = slpm_val - 1; + + dev_dbg(nmk_chip->chip.dev, "pin %d: sleep pull %s, dir %s, val %s\n", + pin, + slpm_pull ? pullnames[pull] : "same", + slpm_output ? (output ? "output" : "input") : "same", + slpm_val ? (val ? "high" : "low") : "same"); + } + + if (output) + __nmk_gpio_make_output(nmk_chip, offset, val); + else { + __nmk_gpio_make_input(nmk_chip, offset); + __nmk_gpio_set_pull(nmk_chip, offset, pull); + } + + __nmk_gpio_set_lowemi(nmk_chip, offset, PIN_LOWEMI(cfg)); + + /* + * If the pin is switching to altfunc, and there was an interrupt + * installed on it which has been lazy disabled, actually mask the + * interrupt to prevent spurious interrupts that would occur while the + * pin is under control of the peripheral. Only SKE does this. + */ + if (af != NMK_GPIO_ALT_GPIO) + nmk_gpio_disable_lazy_irq(nmk_chip, offset); + + /* + * If we've backed up the SLPM registers (glitch workaround), modify + * the backups since they will be restored. + */ + if (slpmregs) { + if (slpm == NMK_GPIO_SLPM_NOCHANGE) + slpmregs[nmk_chip->bank] |= BIT(offset); + else + slpmregs[nmk_chip->bank] &= ~BIT(offset); + } else + __nmk_gpio_set_slpm(nmk_chip, offset, slpm); + + __nmk_gpio_set_mode_safe(nmk_chip, offset, af, glitch); +} + +/* + * Safe sequence used to switch IOs between GPIO and Alternate-C mode: + * - Save SLPM registers + * - Set SLPM=0 for the IOs you want to switch and others to 1 + * - Configure the GPIO registers for the IOs that are being switched + * - Set IOFORCE=1 + * - Modify the AFLSA/B registers for the IOs that are being switched + * - Set IOFORCE=0 + * - Restore SLPM registers + * - Any spurious wake up event during switch sequence to be ignored and + * cleared + */ +static void nmk_gpio_glitch_slpm_init(unsigned int *slpm) +{ + int i; + + for (i = 0; i < NUM_BANKS; i++) { + struct nmk_gpio_chip *chip = nmk_gpio_chips[i]; + unsigned int temp = slpm[i]; + + if (!chip) + break; + + clk_enable(chip->clk); + + slpm[i] = readl(chip->addr + NMK_GPIO_SLPC); + writel(temp, chip->addr + NMK_GPIO_SLPC); + } +} + +static void nmk_gpio_glitch_slpm_restore(unsigned int *slpm) +{ + int i; + + for (i = 0; i < NUM_BANKS; i++) { + struct nmk_gpio_chip *chip = nmk_gpio_chips[i]; + + if (!chip) + break; + + writel(slpm[i], chip->addr + NMK_GPIO_SLPC); + + clk_disable(chip->clk); + } +} + +static int __nmk_config_pins(pin_cfg_t *cfgs, int num, bool sleep) +{ + static unsigned int slpm[NUM_BANKS]; + unsigned long flags; + bool glitch = false; + int ret = 0; + int i; + + for (i = 0; i < num; i++) { + if (PIN_ALT(cfgs[i]) == NMK_GPIO_ALT_C) { + glitch = true; + break; + } + } + + spin_lock_irqsave(&nmk_gpio_slpm_lock, flags); + + if (glitch) { + memset(slpm, 0xff, sizeof(slpm)); + + for (i = 0; i < num; i++) { + int pin = PIN_NUM(cfgs[i]); + int offset = pin % NMK_GPIO_PER_CHIP; + + if (PIN_ALT(cfgs[i]) == NMK_GPIO_ALT_C) + slpm[pin / NMK_GPIO_PER_CHIP] &= ~BIT(offset); + } + + nmk_gpio_glitch_slpm_init(slpm); + } + + for (i = 0; i < num; i++) { + struct nmk_gpio_chip *nmk_chip; + int pin = PIN_NUM(cfgs[i]); + + nmk_chip = nmk_gpio_chips[pin / NMK_GPIO_PER_CHIP]; + if (!nmk_chip) { + ret = -EINVAL; + break; + } + + clk_enable(nmk_chip->clk); + spin_lock(&nmk_chip->lock); + __nmk_config_pin(nmk_chip, pin % NMK_GPIO_PER_CHIP, + cfgs[i], sleep, glitch ? slpm : NULL); + spin_unlock(&nmk_chip->lock); + clk_disable(nmk_chip->clk); + } + + if (glitch) + nmk_gpio_glitch_slpm_restore(slpm); + + spin_unlock_irqrestore(&nmk_gpio_slpm_lock, flags); + + return ret; +} + +/** + * nmk_config_pin - configure a pin's mux attributes + * @cfg: pin confguration + * + * Configures a pin's mode (alternate function or GPIO), its pull up status, + * and its sleep mode based on the specified configuration. The @cfg is + * usually one of the SoC specific macros defined in mach/-pins.h. These + * are constructed using, and can be further enhanced with, the macros in + * plat/pincfg.h. + * + * If a pin's mode is set to GPIO, it is configured as an input to avoid + * side-effects. The gpio can be manipulated later using standard GPIO API + * calls. + */ +int nmk_config_pin(pin_cfg_t cfg, bool sleep) +{ + return __nmk_config_pins(&cfg, 1, sleep); +} +EXPORT_SYMBOL(nmk_config_pin); + +/** + * nmk_config_pins - configure several pins at once + * @cfgs: array of pin configurations + * @num: number of elments in the array + * + * Configures several pins using nmk_config_pin(). Refer to that function for + * further information. + */ +int nmk_config_pins(pin_cfg_t *cfgs, int num) +{ + return __nmk_config_pins(cfgs, num, false); +} +EXPORT_SYMBOL(nmk_config_pins); + +int nmk_config_pins_sleep(pin_cfg_t *cfgs, int num) +{ + return __nmk_config_pins(cfgs, num, true); +} +EXPORT_SYMBOL(nmk_config_pins_sleep); + +/** + * nmk_gpio_set_slpm() - configure the sleep mode of a pin + * @gpio: pin number + * @mode: NMK_GPIO_SLPM_INPUT or NMK_GPIO_SLPM_NOCHANGE, + * + * This register is actually in the pinmux layer, not the GPIO block itself. + * The GPIO1B_SLPM register defines the GPIO mode when SLEEP/DEEP-SLEEP + * mode is entered (i.e. when signal IOFORCE is HIGH by the platform code). + * Each GPIO can be configured to be forced into GPIO mode when IOFORCE is + * HIGH, overriding the normal setting defined by GPIO_AFSELx registers. + * When IOFORCE returns LOW (by software, after SLEEP/DEEP-SLEEP exit), + * the GPIOs return to the normal setting defined by GPIO_AFSELx registers. + * + * If @mode is NMK_GPIO_SLPM_INPUT, the corresponding GPIO is switched to GPIO + * mode when signal IOFORCE is HIGH (i.e. when SLEEP/DEEP-SLEEP mode is + * entered) regardless of the altfunction selected. Also wake-up detection is + * ENABLED. + * + * If @mode is NMK_GPIO_SLPM_NOCHANGE, the corresponding GPIO remains + * controlled by NMK_GPIO_DATC, NMK_GPIO_DATS, NMK_GPIO_DIR, NMK_GPIO_PDIS + * (for altfunction GPIO) or respective on-chip peripherals (for other + * altfuncs) when IOFORCE is HIGH. Also wake-up detection DISABLED. + * + * Note that enable_irq_wake() will automatically enable wakeup detection. + */ +int nmk_gpio_set_slpm(int gpio, enum nmk_gpio_slpm mode) +{ + struct nmk_gpio_chip *nmk_chip; + unsigned long flags; + + nmk_chip = nmk_gpio_chips[gpio / NMK_GPIO_PER_CHIP]; + if (!nmk_chip) + return -EINVAL; + + clk_enable(nmk_chip->clk); + spin_lock_irqsave(&nmk_gpio_slpm_lock, flags); + spin_lock(&nmk_chip->lock); + + __nmk_gpio_set_slpm(nmk_chip, gpio % NMK_GPIO_PER_CHIP, mode); + + spin_unlock(&nmk_chip->lock); + spin_unlock_irqrestore(&nmk_gpio_slpm_lock, flags); + clk_disable(nmk_chip->clk); + + return 0; +} + +/** + * nmk_gpio_set_pull() - enable/disable pull up/down on a gpio + * @gpio: pin number + * @pull: one of NMK_GPIO_PULL_DOWN, NMK_GPIO_PULL_UP, and NMK_GPIO_PULL_NONE + * + * Enables/disables pull up/down on a specified pin. This only takes effect if + * the pin is configured as an input (either explicitly or by the alternate + * function). + * + * NOTE: If enabling the pull up/down, the caller must ensure that the GPIO is + * configured as an input. Otherwise, due to the way the controller registers + * work, this function will change the value output on the pin. + */ +int nmk_gpio_set_pull(int gpio, enum nmk_gpio_pull pull) +{ + struct nmk_gpio_chip *nmk_chip; + unsigned long flags; + + nmk_chip = nmk_gpio_chips[gpio / NMK_GPIO_PER_CHIP]; + if (!nmk_chip) + return -EINVAL; + + clk_enable(nmk_chip->clk); + spin_lock_irqsave(&nmk_chip->lock, flags); + __nmk_gpio_set_pull(nmk_chip, gpio % NMK_GPIO_PER_CHIP, pull); + spin_unlock_irqrestore(&nmk_chip->lock, flags); + clk_disable(nmk_chip->clk); + + return 0; +} + +/* Mode functions */ +/** + * nmk_gpio_set_mode() - set the mux mode of a gpio pin + * @gpio: pin number + * @gpio_mode: one of NMK_GPIO_ALT_GPIO, NMK_GPIO_ALT_A, + * NMK_GPIO_ALT_B, and NMK_GPIO_ALT_C + * + * Sets the mode of the specified pin to one of the alternate functions or + * plain GPIO. + */ +int nmk_gpio_set_mode(int gpio, int gpio_mode) +{ + struct nmk_gpio_chip *nmk_chip; + unsigned long flags; + + nmk_chip = nmk_gpio_chips[gpio / NMK_GPIO_PER_CHIP]; + if (!nmk_chip) + return -EINVAL; + + clk_enable(nmk_chip->clk); + spin_lock_irqsave(&nmk_chip->lock, flags); + __nmk_gpio_set_mode(nmk_chip, gpio % NMK_GPIO_PER_CHIP, gpio_mode); + spin_unlock_irqrestore(&nmk_chip->lock, flags); + clk_disable(nmk_chip->clk); + + return 0; +} +EXPORT_SYMBOL(nmk_gpio_set_mode); + +int nmk_gpio_get_mode(int gpio) +{ + struct nmk_gpio_chip *nmk_chip; + u32 afunc, bfunc, bit; + + nmk_chip = nmk_gpio_chips[gpio / NMK_GPIO_PER_CHIP]; + if (!nmk_chip) + return -EINVAL; + + bit = 1 << (gpio % NMK_GPIO_PER_CHIP); + + clk_enable(nmk_chip->clk); + + afunc = readl(nmk_chip->addr + NMK_GPIO_AFSLA) & bit; + bfunc = readl(nmk_chip->addr + NMK_GPIO_AFSLB) & bit; + + clk_disable(nmk_chip->clk); + + return (afunc ? NMK_GPIO_ALT_A : 0) | (bfunc ? NMK_GPIO_ALT_B : 0); +} +EXPORT_SYMBOL(nmk_gpio_get_mode); + + +/* IRQ functions */ +static inline int nmk_gpio_get_bitmask(int gpio) +{ + return 1 << (gpio % NMK_GPIO_PER_CHIP); +} + +static void nmk_gpio_irq_ack(struct irq_data *d) +{ + struct nmk_gpio_chip *nmk_chip; + + nmk_chip = irq_data_get_irq_chip_data(d); + if (!nmk_chip) + return; + + clk_enable(nmk_chip->clk); + writel(nmk_gpio_get_bitmask(d->hwirq), nmk_chip->addr + NMK_GPIO_IC); + clk_disable(nmk_chip->clk); +} + +enum nmk_gpio_irq_type { + NORMAL, + WAKE, +}; + +static void __nmk_gpio_irq_modify(struct nmk_gpio_chip *nmk_chip, + int gpio, enum nmk_gpio_irq_type which, + bool enable) +{ + u32 bitmask = nmk_gpio_get_bitmask(gpio); + u32 *rimscval; + u32 *fimscval; + u32 rimscreg; + u32 fimscreg; + + if (which == NORMAL) { + rimscreg = NMK_GPIO_RIMSC; + fimscreg = NMK_GPIO_FIMSC; + rimscval = &nmk_chip->rimsc; + fimscval = &nmk_chip->fimsc; + } else { + rimscreg = NMK_GPIO_RWIMSC; + fimscreg = NMK_GPIO_FWIMSC; + rimscval = &nmk_chip->rwimsc; + fimscval = &nmk_chip->fwimsc; + } + + /* we must individually set/clear the two edges */ + if (nmk_chip->edge_rising & bitmask) { + if (enable) + *rimscval |= bitmask; + else + *rimscval &= ~bitmask; + writel(*rimscval, nmk_chip->addr + rimscreg); + } + if (nmk_chip->edge_falling & bitmask) { + if (enable) + *fimscval |= bitmask; + else + *fimscval &= ~bitmask; + writel(*fimscval, nmk_chip->addr + fimscreg); + } +} + +static void __nmk_gpio_set_wake(struct nmk_gpio_chip *nmk_chip, + int gpio, bool on) +{ + /* + * Ensure WAKEUP_ENABLE is on. No need to disable it if wakeup is + * disabled, since setting SLPM to 1 increases power consumption, and + * wakeup is anyhow controlled by the RIMSC and FIMSC registers. + */ + if (nmk_chip->sleepmode && on) { + __nmk_gpio_set_slpm(nmk_chip, gpio % nmk_chip->chip.base, + NMK_GPIO_SLPM_WAKEUP_ENABLE); + } + + __nmk_gpio_irq_modify(nmk_chip, gpio, WAKE, on); +} + +static int nmk_gpio_irq_maskunmask(struct irq_data *d, bool enable) +{ + struct nmk_gpio_chip *nmk_chip; + unsigned long flags; + u32 bitmask; + + nmk_chip = irq_data_get_irq_chip_data(d); + bitmask = nmk_gpio_get_bitmask(d->hwirq); + if (!nmk_chip) + return -EINVAL; + + clk_enable(nmk_chip->clk); + spin_lock_irqsave(&nmk_gpio_slpm_lock, flags); + spin_lock(&nmk_chip->lock); + + __nmk_gpio_irq_modify(nmk_chip, d->hwirq, NORMAL, enable); + + if (!(nmk_chip->real_wake & bitmask)) + __nmk_gpio_set_wake(nmk_chip, d->hwirq, enable); + + spin_unlock(&nmk_chip->lock); + spin_unlock_irqrestore(&nmk_gpio_slpm_lock, flags); + clk_disable(nmk_chip->clk); + + return 0; +} + +static void nmk_gpio_irq_mask(struct irq_data *d) +{ + nmk_gpio_irq_maskunmask(d, false); +} + +static void nmk_gpio_irq_unmask(struct irq_data *d) +{ + nmk_gpio_irq_maskunmask(d, true); +} + +static int nmk_gpio_irq_set_wake(struct irq_data *d, unsigned int on) +{ + struct nmk_gpio_chip *nmk_chip; + unsigned long flags; + u32 bitmask; + + nmk_chip = irq_data_get_irq_chip_data(d); + if (!nmk_chip) + return -EINVAL; + bitmask = nmk_gpio_get_bitmask(d->hwirq); + + clk_enable(nmk_chip->clk); + spin_lock_irqsave(&nmk_gpio_slpm_lock, flags); + spin_lock(&nmk_chip->lock); + + if (irqd_irq_disabled(d)) + __nmk_gpio_set_wake(nmk_chip, d->hwirq, on); + + if (on) + nmk_chip->real_wake |= bitmask; + else + nmk_chip->real_wake &= ~bitmask; + + spin_unlock(&nmk_chip->lock); + spin_unlock_irqrestore(&nmk_gpio_slpm_lock, flags); + clk_disable(nmk_chip->clk); + + return 0; +} + +static int nmk_gpio_irq_set_type(struct irq_data *d, unsigned int type) +{ + bool enabled = !irqd_irq_disabled(d); + bool wake = irqd_is_wakeup_set(d); + struct nmk_gpio_chip *nmk_chip; + unsigned long flags; + u32 bitmask; + + nmk_chip = irq_data_get_irq_chip_data(d); + bitmask = nmk_gpio_get_bitmask(d->hwirq); + if (!nmk_chip) + return -EINVAL; + if (type & IRQ_TYPE_LEVEL_HIGH) + return -EINVAL; + if (type & IRQ_TYPE_LEVEL_LOW) + return -EINVAL; + + clk_enable(nmk_chip->clk); + spin_lock_irqsave(&nmk_chip->lock, flags); + + if (enabled) + __nmk_gpio_irq_modify(nmk_chip, d->hwirq, NORMAL, false); + + if (enabled || wake) + __nmk_gpio_irq_modify(nmk_chip, d->hwirq, WAKE, false); + + nmk_chip->edge_rising &= ~bitmask; + if (type & IRQ_TYPE_EDGE_RISING) + nmk_chip->edge_rising |= bitmask; + + nmk_chip->edge_falling &= ~bitmask; + if (type & IRQ_TYPE_EDGE_FALLING) + nmk_chip->edge_falling |= bitmask; + + if (enabled) + __nmk_gpio_irq_modify(nmk_chip, d->hwirq, NORMAL, true); + + if (enabled || wake) + __nmk_gpio_irq_modify(nmk_chip, d->hwirq, WAKE, true); + + spin_unlock_irqrestore(&nmk_chip->lock, flags); + clk_disable(nmk_chip->clk); + + return 0; +} + +static unsigned int nmk_gpio_irq_startup(struct irq_data *d) +{ + struct nmk_gpio_chip *nmk_chip = irq_data_get_irq_chip_data(d); + + clk_enable(nmk_chip->clk); + nmk_gpio_irq_unmask(d); + return 0; +} + +static void nmk_gpio_irq_shutdown(struct irq_data *d) +{ + struct nmk_gpio_chip *nmk_chip = irq_data_get_irq_chip_data(d); + + nmk_gpio_irq_mask(d); + clk_disable(nmk_chip->clk); +} + +static struct irq_chip nmk_gpio_irq_chip = { + .name = "Nomadik-GPIO", + .irq_ack = nmk_gpio_irq_ack, + .irq_mask = nmk_gpio_irq_mask, + .irq_unmask = nmk_gpio_irq_unmask, + .irq_set_type = nmk_gpio_irq_set_type, + .irq_set_wake = nmk_gpio_irq_set_wake, + .irq_startup = nmk_gpio_irq_startup, + .irq_shutdown = nmk_gpio_irq_shutdown, +}; + +static void __nmk_gpio_irq_handler(unsigned int irq, struct irq_desc *desc, + u32 status) +{ + struct nmk_gpio_chip *nmk_chip; + struct irq_chip *host_chip = irq_get_chip(irq); + unsigned int first_irq; + + chained_irq_enter(host_chip, desc); + + nmk_chip = irq_get_handler_data(irq); + first_irq = nmk_chip->domain->revmap_data.legacy.first_irq; + while (status) { + int bit = __ffs(status); + + generic_handle_irq(first_irq + bit); + status &= ~BIT(bit); + } + + chained_irq_exit(host_chip, desc); +} + +static void nmk_gpio_irq_handler(unsigned int irq, struct irq_desc *desc) +{ + struct nmk_gpio_chip *nmk_chip = irq_get_handler_data(irq); + u32 status; + + clk_enable(nmk_chip->clk); + status = readl(nmk_chip->addr + NMK_GPIO_IS); + clk_disable(nmk_chip->clk); + + __nmk_gpio_irq_handler(irq, desc, status); +} + +static void nmk_gpio_secondary_irq_handler(unsigned int irq, + struct irq_desc *desc) +{ + struct nmk_gpio_chip *nmk_chip = irq_get_handler_data(irq); + u32 status = nmk_chip->get_secondary_status(nmk_chip->bank); + + __nmk_gpio_irq_handler(irq, desc, status); +} + +static int nmk_gpio_init_irq(struct nmk_gpio_chip *nmk_chip) +{ + irq_set_chained_handler(nmk_chip->parent_irq, nmk_gpio_irq_handler); + irq_set_handler_data(nmk_chip->parent_irq, nmk_chip); + + if (nmk_chip->secondary_parent_irq >= 0) { + irq_set_chained_handler(nmk_chip->secondary_parent_irq, + nmk_gpio_secondary_irq_handler); + irq_set_handler_data(nmk_chip->secondary_parent_irq, nmk_chip); + } + + return 0; +} + +/* I/O Functions */ +static int nmk_gpio_make_input(struct gpio_chip *chip, unsigned offset) +{ + struct nmk_gpio_chip *nmk_chip = + container_of(chip, struct nmk_gpio_chip, chip); + + clk_enable(nmk_chip->clk); + + writel(1 << offset, nmk_chip->addr + NMK_GPIO_DIRC); + + clk_disable(nmk_chip->clk); + + return 0; +} + +static int nmk_gpio_get_input(struct gpio_chip *chip, unsigned offset) +{ + struct nmk_gpio_chip *nmk_chip = + container_of(chip, struct nmk_gpio_chip, chip); + u32 bit = 1 << offset; + int value; + + clk_enable(nmk_chip->clk); + + value = (readl(nmk_chip->addr + NMK_GPIO_DAT) & bit) != 0; + + clk_disable(nmk_chip->clk); + + return value; +} + +static void nmk_gpio_set_output(struct gpio_chip *chip, unsigned offset, + int val) +{ + struct nmk_gpio_chip *nmk_chip = + container_of(chip, struct nmk_gpio_chip, chip); + + clk_enable(nmk_chip->clk); + + __nmk_gpio_set_output(nmk_chip, offset, val); + + clk_disable(nmk_chip->clk); +} + +static int nmk_gpio_make_output(struct gpio_chip *chip, unsigned offset, + int val) +{ + struct nmk_gpio_chip *nmk_chip = + container_of(chip, struct nmk_gpio_chip, chip); + + clk_enable(nmk_chip->clk); + + __nmk_gpio_make_output(nmk_chip, offset, val); + + clk_disable(nmk_chip->clk); + + return 0; +} + +static int nmk_gpio_to_irq(struct gpio_chip *chip, unsigned offset) +{ + struct nmk_gpio_chip *nmk_chip = + container_of(chip, struct nmk_gpio_chip, chip); + + return irq_find_mapping(nmk_chip->domain, offset); +} + +#ifdef CONFIG_DEBUG_FS + +#include + +static void nmk_gpio_dbg_show(struct seq_file *s, struct gpio_chip *chip) +{ + int mode; + unsigned i; + unsigned gpio = chip->base; + int is_out; + struct nmk_gpio_chip *nmk_chip = + container_of(chip, struct nmk_gpio_chip, chip); + const char *modes[] = { + [NMK_GPIO_ALT_GPIO] = "gpio", + [NMK_GPIO_ALT_A] = "altA", + [NMK_GPIO_ALT_B] = "altB", + [NMK_GPIO_ALT_C] = "altC", + }; + + clk_enable(nmk_chip->clk); + + for (i = 0; i < chip->ngpio; i++, gpio++) { + const char *label = gpiochip_is_requested(chip, i); + bool pull; + u32 bit = 1 << i; + + is_out = readl(nmk_chip->addr + NMK_GPIO_DIR) & bit; + pull = !(readl(nmk_chip->addr + NMK_GPIO_PDIS) & bit); + mode = nmk_gpio_get_mode(gpio); + seq_printf(s, " gpio-%-3d (%-20.20s) %s %s %s %s", + gpio, label ?: "(none)", + is_out ? "out" : "in ", + chip->get + ? (chip->get(chip, i) ? "hi" : "lo") + : "? ", + (mode < 0) ? "unknown" : modes[mode], + pull ? "pull" : "none"); + + if (label && !is_out) { + int irq = gpio_to_irq(gpio); + struct irq_desc *desc = irq_to_desc(irq); + + /* This races with request_irq(), set_irq_type(), + * and set_irq_wake() ... but those are "rare". + */ + if (irq >= 0 && desc->action) { + char *trigger; + u32 bitmask = nmk_gpio_get_bitmask(gpio); + + if (nmk_chip->edge_rising & bitmask) + trigger = "edge-rising"; + else if (nmk_chip->edge_falling & bitmask) + trigger = "edge-falling"; + else + trigger = "edge-undefined"; + + seq_printf(s, " irq-%d %s%s", + irq, trigger, + irqd_is_wakeup_set(&desc->irq_data) + ? " wakeup" : ""); + } + } + + seq_printf(s, "\n"); + } + + clk_disable(nmk_chip->clk); +} + +#else +#define nmk_gpio_dbg_show NULL +#endif + +/* This structure is replicated for each GPIO block allocated at probe time */ +static struct gpio_chip nmk_gpio_template = { + .direction_input = nmk_gpio_make_input, + .get = nmk_gpio_get_input, + .direction_output = nmk_gpio_make_output, + .set = nmk_gpio_set_output, + .to_irq = nmk_gpio_to_irq, + .dbg_show = nmk_gpio_dbg_show, + .can_sleep = 0, +}; + +void nmk_gpio_clocks_enable(void) +{ + int i; + + for (i = 0; i < NUM_BANKS; i++) { + struct nmk_gpio_chip *chip = nmk_gpio_chips[i]; + + if (!chip) + continue; + + clk_enable(chip->clk); + } +} + +void nmk_gpio_clocks_disable(void) +{ + int i; + + for (i = 0; i < NUM_BANKS; i++) { + struct nmk_gpio_chip *chip = nmk_gpio_chips[i]; + + if (!chip) + continue; + + clk_disable(chip->clk); + } +} + +/* + * Called from the suspend/resume path to only keep the real wakeup interrupts + * (those that have had set_irq_wake() called on them) as wakeup interrupts, + * and not the rest of the interrupts which we needed to have as wakeups for + * cpuidle. + * + * PM ops are not used since this needs to be done at the end, after all the + * other drivers are done with their suspend callbacks. + */ +void nmk_gpio_wakeups_suspend(void) +{ + int i; + + for (i = 0; i < NUM_BANKS; i++) { + struct nmk_gpio_chip *chip = nmk_gpio_chips[i]; + + if (!chip) + break; + + clk_enable(chip->clk); + + writel(chip->rwimsc & chip->real_wake, + chip->addr + NMK_GPIO_RWIMSC); + writel(chip->fwimsc & chip->real_wake, + chip->addr + NMK_GPIO_FWIMSC); + + clk_disable(chip->clk); + } +} + +void nmk_gpio_wakeups_resume(void) +{ + int i; + + for (i = 0; i < NUM_BANKS; i++) { + struct nmk_gpio_chip *chip = nmk_gpio_chips[i]; + + if (!chip) + break; + + clk_enable(chip->clk); + + writel(chip->rwimsc, chip->addr + NMK_GPIO_RWIMSC); + writel(chip->fwimsc, chip->addr + NMK_GPIO_FWIMSC); + + clk_disable(chip->clk); + } +} + +/* + * Read the pull up/pull down status. + * A bit set in 'pull_up' means that pull up + * is selected if pull is enabled in PDIS register. + * Note: only pull up/down set via this driver can + * be detected due to HW limitations. + */ +void nmk_gpio_read_pull(int gpio_bank, u32 *pull_up) +{ + if (gpio_bank < NUM_BANKS) { + struct nmk_gpio_chip *chip = nmk_gpio_chips[gpio_bank]; + + if (!chip) + return; + + *pull_up = chip->pull_up; + } +} + +int nmk_gpio_irq_map(struct irq_domain *d, unsigned int irq, + irq_hw_number_t hwirq) +{ + struct nmk_gpio_chip *nmk_chip = d->host_data; + + if (!nmk_chip) + return -EINVAL; + + irq_set_chip_and_handler(irq, &nmk_gpio_irq_chip, handle_edge_irq); + set_irq_flags(irq, IRQF_VALID); + irq_set_chip_data(irq, nmk_chip); + irq_set_irq_type(irq, IRQ_TYPE_EDGE_FALLING); + + return 0; +} + +const struct irq_domain_ops nmk_gpio_irq_simple_ops = { + .map = nmk_gpio_irq_map, + .xlate = irq_domain_xlate_twocell, +}; + +static int __devinit nmk_gpio_probe(struct platform_device *dev) +{ + struct nmk_gpio_platform_data *pdata = dev->dev.platform_data; + struct device_node *np = dev->dev.of_node; + struct nmk_gpio_chip *nmk_chip; + struct gpio_chip *chip; + struct resource *res; + struct clk *clk; + int secondary_irq; + void __iomem *base; + int irq; + int ret; + + if (!pdata && !np) { + dev_err(&dev->dev, "No platform data or device tree found\n"); + return -ENODEV; + } + + if (np) { + pdata = kzalloc(sizeof(*pdata), GFP_KERNEL); + if (!pdata) + return -ENOMEM; + + if (of_get_property(np, "supports-sleepmode", NULL)) + pdata->supports_sleepmode = true; + + if (of_property_read_u32(np, "gpio-bank", &dev->id)) { + dev_err(&dev->dev, "gpio-bank property not found\n"); + ret = -EINVAL; + goto out; + } + + pdata->first_gpio = dev->id * NMK_GPIO_PER_CHIP; + pdata->num_gpio = NMK_GPIO_PER_CHIP; + } + + res = platform_get_resource(dev, IORESOURCE_MEM, 0); + if (!res) { + ret = -ENOENT; + goto out; + } + + irq = platform_get_irq(dev, 0); + if (irq < 0) { + ret = irq; + goto out; + } + + secondary_irq = platform_get_irq(dev, 1); + if (secondary_irq >= 0 && !pdata->get_secondary_status) { + ret = -EINVAL; + goto out; + } + + if (request_mem_region(res->start, resource_size(res), + dev_name(&dev->dev)) == NULL) { + ret = -EBUSY; + goto out; + } + + base = ioremap(res->start, resource_size(res)); + if (!base) { + ret = -ENOMEM; + goto out_release; + } + + clk = clk_get(&dev->dev, NULL); + if (IS_ERR(clk)) { + ret = PTR_ERR(clk); + goto out_unmap; + } + + nmk_chip = kzalloc(sizeof(*nmk_chip), GFP_KERNEL); + if (!nmk_chip) { + ret = -ENOMEM; + goto out_clk; + } + + /* + * The virt address in nmk_chip->addr is in the nomadik register space, + * so we can simply convert the resource address, without remapping + */ + nmk_chip->bank = dev->id; + nmk_chip->clk = clk; + nmk_chip->addr = base; + nmk_chip->chip = nmk_gpio_template; + nmk_chip->parent_irq = irq; + nmk_chip->secondary_parent_irq = secondary_irq; + nmk_chip->get_secondary_status = pdata->get_secondary_status; + nmk_chip->set_ioforce = pdata->set_ioforce; + nmk_chip->sleepmode = pdata->supports_sleepmode; + spin_lock_init(&nmk_chip->lock); + + chip = &nmk_chip->chip; + chip->base = pdata->first_gpio; + chip->ngpio = pdata->num_gpio; + chip->label = pdata->name ?: dev_name(&dev->dev); + chip->dev = &dev->dev; + chip->owner = THIS_MODULE; + + clk_enable(nmk_chip->clk); + nmk_chip->lowemi = readl_relaxed(nmk_chip->addr + NMK_GPIO_LOWEMI); + clk_disable(nmk_chip->clk); + + chip->of_node = np; + + ret = gpiochip_add(&nmk_chip->chip); + if (ret) + goto out_free; + + BUG_ON(nmk_chip->bank >= ARRAY_SIZE(nmk_gpio_chips)); + + nmk_gpio_chips[nmk_chip->bank] = nmk_chip; + + platform_set_drvdata(dev, nmk_chip); + + nmk_chip->domain = irq_domain_add_legacy(np, NMK_GPIO_PER_CHIP, + NOMADIK_GPIO_TO_IRQ(pdata->first_gpio), + 0, &nmk_gpio_irq_simple_ops, nmk_chip); + if (!nmk_chip->domain) { + pr_err("%s: Failed to create irqdomain\n", np->full_name); + ret = -ENOSYS; + goto out_free; + } + + nmk_gpio_init_irq(nmk_chip); + + dev_info(&dev->dev, "at address %p\n", nmk_chip->addr); + + return 0; + +out_free: + kfree(nmk_chip); +out_clk: + clk_disable(clk); + clk_put(clk); +out_unmap: + iounmap(base); +out_release: + release_mem_region(res->start, resource_size(res)); +out: + dev_err(&dev->dev, "Failure %i for GPIO %i-%i\n", ret, + pdata->first_gpio, pdata->first_gpio+31); + if (np) + kfree(pdata); + + return ret; +} + +static const struct of_device_id nmk_gpio_match[] = { + { .compatible = "st,nomadik-gpio", }, + {} +}; + +static struct platform_driver nmk_gpio_driver = { + .driver = { + .owner = THIS_MODULE, + .name = "gpio", + .of_match_table = nmk_gpio_match, + }, + .probe = nmk_gpio_probe, +}; + +static int __init nmk_gpio_init(void) +{ + return platform_driver_register(&nmk_gpio_driver); +} + +core_initcall(nmk_gpio_init); + +MODULE_AUTHOR("Prafulla WADASKAR and Alessandro Rubini"); +MODULE_DESCRIPTION("Nomadik GPIO Driver"); +MODULE_LICENSE("GPL"); -- cgit v1.2.3-70-g09d2 From 072e82a18f72b7b7278130c79029aac59de7650b Mon Sep 17 00:00:00 2001 From: Arnd Bergmann Date: Thu, 10 May 2012 13:39:52 +0200 Subject: pinctrl/nomadik: !CONFIG_OF build error a60b57e "drivers/gpio: gpio-nomadik: Add support for irqdomains" broke building with CONFIG_OF_GPIO disabled. Without this patch, building nhk8815_defconfig results in: /home/arnd/linux-arm/drivers/gpio/gpio-nomadik.c: In function 'nmk_gpio_probe': /home/arnd/linux-arm/drivers/gpio/gpio-nomadik.c:1238:6: error: 'struct gpio_chip' has no member named 'of_node' make[3]: *** [drivers/gpio/gpio-nomadik.o] Error 1 make[2]: *** [drivers/gpio] Error 2 make[2]: *** Waiting for unfinished jobs.... make[1]: *** [drivers] Error 2 make[1]: *** Waiting for unfinished jobs.... make: *** [sub-make] Error 2 Signed-off-by: Arnd Bergmann Signed-off-by: Linus Walleij --- drivers/pinctrl/pinctrl-nomadik.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/pinctrl/pinctrl-nomadik.c b/drivers/pinctrl/pinctrl-nomadik.c index 9b126b6d79c..1352f336844 100644 --- a/drivers/pinctrl/pinctrl-nomadik.c +++ b/drivers/pinctrl/pinctrl-nomadik.c @@ -1235,7 +1235,9 @@ static int __devinit nmk_gpio_probe(struct platform_device *dev) nmk_chip->lowemi = readl_relaxed(nmk_chip->addr + NMK_GPIO_LOWEMI); clk_disable(nmk_chip->clk); +#ifdef CONFIG_OF_GPIO chip->of_node = np; +#endif ret = gpiochip_add(&nmk_chip->chip); if (ret) -- cgit v1.2.3-70-g09d2 From e98ea774c8d210364379329f042e7596f83ecc58 Mon Sep 17 00:00:00 2001 From: Linus Walleij Date: Thu, 26 Apr 2012 23:57:25 +0200 Subject: pinctrl/nomadik: basic Nomadik pinctrl interface This adds a scratch pin control interface to the Nomadik pinctrl driver, and defines the pins and groups in the DB8500 ASIC. We define GPIO ranges to cover the pins exposed. The DB8500 has more pins than this but we restrict the driver to the pins that can be controlled from the combined GPIO and pin control hardware to begin with. ChangeLog v1->v2: - Base on the latest pinctrl development from pinctrl-mergebase-20120418 so we can get rid of legacy group count mechanism. Also drop the range checks for group index, this is handled by the core now. Acked-by: Stephen Warren Signed-off-by: Linus Walleij --- arch/arm/mach-ux500/Kconfig | 3 + arch/arm/mach-ux500/cpu-db8500.c | 1 + arch/arm/mach-ux500/devices-common.h | 12 + drivers/pinctrl/Kconfig | 8 + drivers/pinctrl/Makefile | 3 +- drivers/pinctrl/pinctrl-nomadik-db8500.c | 727 +++++++++++++++++++++++++++++++ drivers/pinctrl/pinctrl-nomadik.c | 122 +++++- drivers/pinctrl/pinctrl-nomadik.h | 61 +++ 8 files changed, 935 insertions(+), 2 deletions(-) create mode 100644 drivers/pinctrl/pinctrl-nomadik-db8500.c create mode 100644 drivers/pinctrl/pinctrl-nomadik.h diff --git a/arch/arm/mach-ux500/Kconfig b/arch/arm/mach-ux500/Kconfig index ef7099eea0f..4adb4939666 100644 --- a/arch/arm/mach-ux500/Kconfig +++ b/arch/arm/mach-ux500/Kconfig @@ -9,6 +9,8 @@ config UX500_SOC_COMMON select ARM_ERRATA_754322 select ARM_ERRATA_764369 select CACHE_L2X0 + select PINCTRL + select PINCTRL_NOMADIK config UX500_SOC_DB5500 bool @@ -20,6 +22,7 @@ config UX500_SOC_DB8500 select REGULATOR select REGULATOR_DB8500_PRCMU select CPU_FREQ_TABLE if CPU_FREQ + select PINCTRL_DB8500 menu "Ux500 target platform (boards)" diff --git a/arch/arm/mach-ux500/cpu-db8500.c b/arch/arm/mach-ux500/cpu-db8500.c index 9bd8163896c..d992d2b4490 100644 --- a/arch/arm/mach-ux500/cpu-db8500.c +++ b/arch/arm/mach-ux500/cpu-db8500.c @@ -141,6 +141,7 @@ static void __init db8500_add_gpios(struct device *parent) dbx500_add_gpios(parent, ARRAY_AND_SIZE(db8500_gpio_base), IRQ_DB8500_GPIO0, &pdata); + dbx500_add_pinctrl(parent, "pinctrl-db8500"); } static int usb_db8500_rx_dma_cfg[] = { diff --git a/arch/arm/mach-ux500/devices-common.h b/arch/arm/mach-ux500/devices-common.h index 39c74ec82ad..939f7503e8d 100644 --- a/arch/arm/mach-ux500/devices-common.h +++ b/arch/arm/mach-ux500/devices-common.h @@ -93,4 +93,16 @@ struct nmk_gpio_platform_data; void dbx500_add_gpios(struct device *parent, resource_size_t *base, int num, int irq, struct nmk_gpio_platform_data *pdata); +static inline void +dbx500_add_pinctrl(struct device *parent, const char *name) +{ + struct platform_device_info pdevinfo = { + .parent = parent, + .name = name, + .id = -1, + }; + + platform_device_register_full(&pdevinfo); +} + #endif diff --git a/drivers/pinctrl/Kconfig b/drivers/pinctrl/Kconfig index f73a5ea8975..5e718201b88 100644 --- a/drivers/pinctrl/Kconfig +++ b/drivers/pinctrl/Kconfig @@ -36,6 +36,14 @@ config PINCTRL_MMP2 select PINCTRL_PXA3xx select PINCONF +config PINCTRL_NOMADIK + bool "Nomadik pin controller driver" + depends on ARCH_U8500 + +config PINCTRL_DB8500 + bool "DB8500 pin controller driver" + depends on PINCTRL_NOMADIK && ARCH_U8500 + config PINCTRL_PXA168 bool "PXA168 pin controller driver" depends on ARCH_MMP diff --git a/drivers/pinctrl/Makefile b/drivers/pinctrl/Makefile index dd797caf579..637951ea05b 100644 --- a/drivers/pinctrl/Makefile +++ b/drivers/pinctrl/Makefile @@ -11,7 +11,8 @@ endif obj-$(CONFIG_GENERIC_PINCONF) += pinconf-generic.o obj-$(CONFIG_PINCTRL_PXA3xx) += pinctrl-pxa3xx.o obj-$(CONFIG_PINCTRL_MMP2) += pinctrl-mmp2.o -obj-$(CONFIG_PLAT_NOMADIK) += pinctrl-nomadik.o +obj-$(CONFIG_PINCTRL_NOMADIK) += pinctrl-nomadik.o +obj-$(CONFIG_PINCTRL_DB8500) += pinctrl-nomadik-db8500.o obj-$(CONFIG_PINCTRL_PXA168) += pinctrl-pxa168.o obj-$(CONFIG_PINCTRL_PXA910) += pinctrl-pxa910.o obj-$(CONFIG_PINCTRL_SIRF) += pinctrl-sirf.o diff --git a/drivers/pinctrl/pinctrl-nomadik-db8500.c b/drivers/pinctrl/pinctrl-nomadik-db8500.c new file mode 100644 index 00000000000..b6871c9ba53 --- /dev/null +++ b/drivers/pinctrl/pinctrl-nomadik-db8500.c @@ -0,0 +1,727 @@ +#include +#include +#include "pinctrl-nomadik.h" + +/* All the pins that can be used for GPIO and some other functions */ +#define _GPIO(offset) (offset) + +#define DB8500_PIN_AJ5 _GPIO(0) +#define DB8500_PIN_AJ3 _GPIO(1) +#define DB8500_PIN_AH4 _GPIO(2) +#define DB8500_PIN_AH3 _GPIO(3) +#define DB8500_PIN_AH6 _GPIO(4) +#define DB8500_PIN_AG6 _GPIO(5) +#define DB8500_PIN_AF6 _GPIO(6) +#define DB8500_PIN_AG5 _GPIO(7) +#define DB8500_PIN_AD5 _GPIO(8) +#define DB8500_PIN_AE4 _GPIO(9) +#define DB8500_PIN_AF5 _GPIO(10) +#define DB8500_PIN_AG4 _GPIO(11) +#define DB8500_PIN_AC4 _GPIO(12) +#define DB8500_PIN_AF3 _GPIO(13) +#define DB8500_PIN_AE3 _GPIO(14) +#define DB8500_PIN_AC3 _GPIO(15) +#define DB8500_PIN_AD3 _GPIO(16) +#define DB8500_PIN_AD4 _GPIO(17) +#define DB8500_PIN_AC2 _GPIO(18) +#define DB8500_PIN_AC1 _GPIO(19) +#define DB8500_PIN_AB4 _GPIO(20) +#define DB8500_PIN_AB3 _GPIO(21) +#define DB8500_PIN_AA3 _GPIO(22) +#define DB8500_PIN_AA4 _GPIO(23) +#define DB8500_PIN_AB2 _GPIO(24) +#define DB8500_PIN_Y4 _GPIO(25) +#define DB8500_PIN_Y2 _GPIO(26) +#define DB8500_PIN_AA2 _GPIO(27) +#define DB8500_PIN_AA1 _GPIO(28) +#define DB8500_PIN_W2 _GPIO(29) +#define DB8500_PIN_W3 _GPIO(30) +#define DB8500_PIN_V3 _GPIO(31) +#define DB8500_PIN_V2 _GPIO(32) +#define DB8500_PIN_AF2 _GPIO(33) +#define DB8500_PIN_AE1 _GPIO(34) +#define DB8500_PIN_AE2 _GPIO(35) +#define DB8500_PIN_AG2 _GPIO(36) +/* Hole */ +#define DB8500_PIN_F3 _GPIO(64) +#define DB8500_PIN_F1 _GPIO(65) +#define DB8500_PIN_G3 _GPIO(66) +#define DB8500_PIN_G2 _GPIO(67) +#define DB8500_PIN_E1 _GPIO(68) +#define DB8500_PIN_E2 _GPIO(69) +#define DB8500_PIN_G5 _GPIO(70) +#define DB8500_PIN_G4 _GPIO(71) +#define DB8500_PIN_H4 _GPIO(72) +#define DB8500_PIN_H3 _GPIO(73) +#define DB8500_PIN_J3 _GPIO(74) +#define DB8500_PIN_H2 _GPIO(75) +#define DB8500_PIN_J2 _GPIO(76) +#define DB8500_PIN_H1 _GPIO(77) +#define DB8500_PIN_F4 _GPIO(78) +#define DB8500_PIN_E3 _GPIO(79) +#define DB8500_PIN_E4 _GPIO(80) +#define DB8500_PIN_D2 _GPIO(81) +#define DB8500_PIN_C1 _GPIO(82) +#define DB8500_PIN_D3 _GPIO(83) +#define DB8500_PIN_C2 _GPIO(84) +#define DB8500_PIN_D5 _GPIO(85) +#define DB8500_PIN_C6 _GPIO(86) +#define DB8500_PIN_B3 _GPIO(87) +#define DB8500_PIN_C4 _GPIO(88) +#define DB8500_PIN_E6 _GPIO(89) +#define DB8500_PIN_A3 _GPIO(90) +#define DB8500_PIN_B6 _GPIO(91) +#define DB8500_PIN_D6 _GPIO(92) +#define DB8500_PIN_B7 _GPIO(93) +#define DB8500_PIN_D7 _GPIO(94) +#define DB8500_PIN_E8 _GPIO(95) +#define DB8500_PIN_D8 _GPIO(96) +#define DB8500_PIN_D9 _GPIO(97) +/* Hole */ +#define DB8500_PIN_A5 _GPIO(128) +#define DB8500_PIN_B4 _GPIO(129) +#define DB8500_PIN_C8 _GPIO(130) +#define DB8500_PIN_A12 _GPIO(131) +#define DB8500_PIN_C10 _GPIO(132) +#define DB8500_PIN_B10 _GPIO(133) +#define DB8500_PIN_B9 _GPIO(134) +#define DB8500_PIN_A9 _GPIO(135) +#define DB8500_PIN_C7 _GPIO(136) +#define DB8500_PIN_A7 _GPIO(137) +#define DB8500_PIN_C5 _GPIO(138) +#define DB8500_PIN_C9 _GPIO(139) +#define DB8500_PIN_B11 _GPIO(140) +#define DB8500_PIN_C12 _GPIO(141) +#define DB8500_PIN_C11 _GPIO(142) +#define DB8500_PIN_D12 _GPIO(143) +#define DB8500_PIN_B13 _GPIO(144) +#define DB8500_PIN_C13 _GPIO(145) +#define DB8500_PIN_D13 _GPIO(146) +#define DB8500_PIN_C15 _GPIO(147) +#define DB8500_PIN_B16 _GPIO(148) +#define DB8500_PIN_B14 _GPIO(149) +#define DB8500_PIN_C14 _GPIO(150) +#define DB8500_PIN_D17 _GPIO(151) +#define DB8500_PIN_D16 _GPIO(152) +#define DB8500_PIN_B17 _GPIO(153) +#define DB8500_PIN_C16 _GPIO(154) +#define DB8500_PIN_C19 _GPIO(155) +#define DB8500_PIN_C17 _GPIO(156) +#define DB8500_PIN_A18 _GPIO(157) +#define DB8500_PIN_C18 _GPIO(158) +#define DB8500_PIN_B19 _GPIO(159) +#define DB8500_PIN_B20 _GPIO(160) +#define DB8500_PIN_D21 _GPIO(161) +#define DB8500_PIN_D20 _GPIO(162) +#define DB8500_PIN_C20 _GPIO(163) +#define DB8500_PIN_B21 _GPIO(164) +#define DB8500_PIN_C21 _GPIO(165) +#define DB8500_PIN_A22 _GPIO(166) +#define DB8500_PIN_B24 _GPIO(167) +#define DB8500_PIN_C22 _GPIO(168) +#define DB8500_PIN_D22 _GPIO(169) +#define DB8500_PIN_C23 _GPIO(170) +#define DB8500_PIN_D23 _GPIO(171) +/* Hole */ +#define DB8500_PIN_AJ27 _GPIO(192) +#define DB8500_PIN_AH27 _GPIO(193) +#define DB8500_PIN_AF27 _GPIO(194) +#define DB8500_PIN_AG28 _GPIO(195) +#define DB8500_PIN_AG26 _GPIO(196) +#define DB8500_PIN_AH24 _GPIO(197) +#define DB8500_PIN_AG25 _GPIO(198) +#define DB8500_PIN_AH23 _GPIO(199) +#define DB8500_PIN_AH26 _GPIO(200) +#define DB8500_PIN_AF24 _GPIO(201) +#define DB8500_PIN_AF25 _GPIO(202) +#define DB8500_PIN_AE23 _GPIO(203) +#define DB8500_PIN_AF23 _GPIO(204) +#define DB8500_PIN_AG23 _GPIO(205) +#define DB8500_PIN_AG24 _GPIO(206) +#define DB8500_PIN_AJ23 _GPIO(207) +#define DB8500_PIN_AH16 _GPIO(208) +#define DB8500_PIN_AG15 _GPIO(209) +#define DB8500_PIN_AJ15 _GPIO(210) +#define DB8500_PIN_AG14 _GPIO(211) +#define DB8500_PIN_AF13 _GPIO(212) +#define DB8500_PIN_AG13 _GPIO(213) +#define DB8500_PIN_AH15 _GPIO(214) +#define DB8500_PIN_AH13 _GPIO(215) +#define DB8500_PIN_AG12 _GPIO(216) +#define DB8500_PIN_AH12 _GPIO(217) +#define DB8500_PIN_AH11 _GPIO(218) +#define DB8500_PIN_AG10 _GPIO(219) +#define DB8500_PIN_AH10 _GPIO(220) +#define DB8500_PIN_AJ11 _GPIO(221) +#define DB8500_PIN_AJ9 _GPIO(222) +#define DB8500_PIN_AH9 _GPIO(223) +#define DB8500_PIN_AG9 _GPIO(224) +#define DB8500_PIN_AG8 _GPIO(225) +#define DB8500_PIN_AF8 _GPIO(226) +#define DB8500_PIN_AH7 _GPIO(227) +#define DB8500_PIN_AJ6 _GPIO(228) +#define DB8500_PIN_AG7 _GPIO(229) +#define DB8500_PIN_AF7 _GPIO(230) +/* Hole */ +#define DB8500_PIN_AF28 _GPIO(256) +#define DB8500_PIN_AE29 _GPIO(257) +#define DB8500_PIN_AD29 _GPIO(258) +#define DB8500_PIN_AC29 _GPIO(259) +#define DB8500_PIN_AD28 _GPIO(260) +#define DB8500_PIN_AD26 _GPIO(261) +#define DB8500_PIN_AE26 _GPIO(262) +#define DB8500_PIN_AG29 _GPIO(263) +#define DB8500_PIN_AE27 _GPIO(264) +#define DB8500_PIN_AD27 _GPIO(265) +#define DB8500_PIN_AC28 _GPIO(266) +#define DB8500_PIN_AC27 _GPIO(267) + +/* + * The names of the pins are denoted by GPIO number and ball name, even + * though they can be used for other things than GPIO, this is the first + * column in the table of the data sheet and often used on schematics and + * such. + */ +static const struct pinctrl_pin_desc nmk_db8500_pins[] = { + PINCTRL_PIN(DB8500_PIN_AJ5, "GPIO0_AJ5"), + PINCTRL_PIN(DB8500_PIN_AJ3, "GPIO1_AJ3"), + PINCTRL_PIN(DB8500_PIN_AH4, "GPIO2_AH4"), + PINCTRL_PIN(DB8500_PIN_AH3, "GPIO3_AH3"), + PINCTRL_PIN(DB8500_PIN_AH6, "GPIO4_AH6"), + PINCTRL_PIN(DB8500_PIN_AG6, "GPIO5_AG6"), + PINCTRL_PIN(DB8500_PIN_AF6, "GPIO6_AF6"), + PINCTRL_PIN(DB8500_PIN_AG5, "GPIO7_AG5"), + PINCTRL_PIN(DB8500_PIN_AD5, "GPIO8_AD5"), + PINCTRL_PIN(DB8500_PIN_AE4, "GPIO9_AE4"), + PINCTRL_PIN(DB8500_PIN_AF5, "GPIO10_AF5"), + PINCTRL_PIN(DB8500_PIN_AG4, "GPIO11_AG4"), + PINCTRL_PIN(DB8500_PIN_AC4, "GPIO12_AC4"), + PINCTRL_PIN(DB8500_PIN_AF3, "GPIO13_AF3"), + PINCTRL_PIN(DB8500_PIN_AE3, "GPIO14_AE3"), + PINCTRL_PIN(DB8500_PIN_AC3, "GPIO15_AC3"), + PINCTRL_PIN(DB8500_PIN_AD3, "GPIO16_AD3"), + PINCTRL_PIN(DB8500_PIN_AD4, "GPIO17_AD4"), + PINCTRL_PIN(DB8500_PIN_AC2, "GPIO18_AC2"), + PINCTRL_PIN(DB8500_PIN_AC1, "GPIO19_AC1"), + PINCTRL_PIN(DB8500_PIN_AB4, "GPIO20_AB4"), + PINCTRL_PIN(DB8500_PIN_AB3, "GPIO21_AB3"), + PINCTRL_PIN(DB8500_PIN_AA3, "GPIO22_AA3"), + PINCTRL_PIN(DB8500_PIN_AA4, "GPIO23_AA4"), + PINCTRL_PIN(DB8500_PIN_AB2, "GPIO24_AB2"), + PINCTRL_PIN(DB8500_PIN_Y4, "GPIO25_Y4"), + PINCTRL_PIN(DB8500_PIN_Y2, "GPIO26_Y2"), + PINCTRL_PIN(DB8500_PIN_AA2, "GPIO27_AA2"), + PINCTRL_PIN(DB8500_PIN_AA1, "GPIO28_AA1"), + PINCTRL_PIN(DB8500_PIN_W2, "GPIO29_W2"), + PINCTRL_PIN(DB8500_PIN_W3, "GPIO30_W3"), + PINCTRL_PIN(DB8500_PIN_V3, "GPIO31_V3"), + PINCTRL_PIN(DB8500_PIN_V2, "GPIO32_V2"), + PINCTRL_PIN(DB8500_PIN_AF2, "GPIO33_AF2"), + PINCTRL_PIN(DB8500_PIN_AE1, "GPIO34_AE1"), + PINCTRL_PIN(DB8500_PIN_AE2, "GPIO35_AE2"), + PINCTRL_PIN(DB8500_PIN_AG2, "GPIO36_AG2"), + /* Hole */ + PINCTRL_PIN(DB8500_PIN_F3, "GPIO64_F3"), + PINCTRL_PIN(DB8500_PIN_F1, "GPIO65_F1"), + PINCTRL_PIN(DB8500_PIN_G3, "GPIO66_G3"), + PINCTRL_PIN(DB8500_PIN_G2, "GPIO67_G2"), + PINCTRL_PIN(DB8500_PIN_E1, "GPIO68_E1"), + PINCTRL_PIN(DB8500_PIN_E2, "GPIO69_E2"), + PINCTRL_PIN(DB8500_PIN_G5, "GPIO70_G5"), + PINCTRL_PIN(DB8500_PIN_G4, "GPIO71_G4"), + PINCTRL_PIN(DB8500_PIN_H4, "GPIO72_H4"), + PINCTRL_PIN(DB8500_PIN_H3, "GPIO73_H3"), + PINCTRL_PIN(DB8500_PIN_J3, "GPIO74_J3"), + PINCTRL_PIN(DB8500_PIN_H2, "GPIO75_H2"), + PINCTRL_PIN(DB8500_PIN_J2, "GPIO76_J2"), + PINCTRL_PIN(DB8500_PIN_H1, "GPIO77_H1"), + PINCTRL_PIN(DB8500_PIN_F4, "GPIO78_F4"), + PINCTRL_PIN(DB8500_PIN_E3, "GPIO79_E3"), + PINCTRL_PIN(DB8500_PIN_E4, "GPIO80_E4"), + PINCTRL_PIN(DB8500_PIN_D2, "GPIO81_D2"), + PINCTRL_PIN(DB8500_PIN_C1, "GPIO82_C1"), + PINCTRL_PIN(DB8500_PIN_D3, "GPIO83_D3"), + PINCTRL_PIN(DB8500_PIN_C2, "GPIO84_C2"), + PINCTRL_PIN(DB8500_PIN_D5, "GPIO85_D5"), + PINCTRL_PIN(DB8500_PIN_C6, "GPIO86_C6"), + PINCTRL_PIN(DB8500_PIN_B3, "GPIO87_B3"), + PINCTRL_PIN(DB8500_PIN_C4, "GPIO88_C4"), + PINCTRL_PIN(DB8500_PIN_E6, "GPIO89_E6"), + PINCTRL_PIN(DB8500_PIN_A3, "GPIO90_A3"), + PINCTRL_PIN(DB8500_PIN_B6, "GPIO91_B6"), + PINCTRL_PIN(DB8500_PIN_D6, "GPIO92_D6"), + PINCTRL_PIN(DB8500_PIN_B7, "GPIO93_B7"), + PINCTRL_PIN(DB8500_PIN_D7, "GPIO94_D7"), + PINCTRL_PIN(DB8500_PIN_E8, "GPIO95_E8"), + PINCTRL_PIN(DB8500_PIN_D8, "GPIO96_D8"), + PINCTRL_PIN(DB8500_PIN_D9, "GPIO97_D9"), + /* Hole */ + PINCTRL_PIN(DB8500_PIN_A5, "GPIO128_A5"), + PINCTRL_PIN(DB8500_PIN_B4, "GPIO129_B4"), + PINCTRL_PIN(DB8500_PIN_C8, "GPIO130_C8"), + PINCTRL_PIN(DB8500_PIN_A12, "GPIO131_A12"), + PINCTRL_PIN(DB8500_PIN_C10, "GPIO132_C10"), + PINCTRL_PIN(DB8500_PIN_B10, "GPIO133_B10"), + PINCTRL_PIN(DB8500_PIN_B9, "GPIO134_B9"), + PINCTRL_PIN(DB8500_PIN_A9, "GPIO135_A9"), + PINCTRL_PIN(DB8500_PIN_C7, "GPIO136_C7"), + PINCTRL_PIN(DB8500_PIN_A7, "GPIO137_A7"), + PINCTRL_PIN(DB8500_PIN_C5, "GPIO138_C5"), + PINCTRL_PIN(DB8500_PIN_C9, "GPIO139_C9"), + PINCTRL_PIN(DB8500_PIN_B11, "GPIO140_B11"), + PINCTRL_PIN(DB8500_PIN_C12, "GPIO141_C12"), + PINCTRL_PIN(DB8500_PIN_C11, "GPIO142_C11"), + PINCTRL_PIN(DB8500_PIN_D12, "GPIO143_D12"), + PINCTRL_PIN(DB8500_PIN_B13, "GPIO144_B13"), + PINCTRL_PIN(DB8500_PIN_C13, "GPIO145_C13"), + PINCTRL_PIN(DB8500_PIN_D13, "GPIO146_D13"), + PINCTRL_PIN(DB8500_PIN_C15, "GPIO147_C15"), + PINCTRL_PIN(DB8500_PIN_B16, "GPIO148_B16"), + PINCTRL_PIN(DB8500_PIN_B14, "GPIO149_B14"), + PINCTRL_PIN(DB8500_PIN_C14, "GPIO150_C14"), + PINCTRL_PIN(DB8500_PIN_D17, "GPIO151_D17"), + PINCTRL_PIN(DB8500_PIN_D16, "GPIO152_D16"), + PINCTRL_PIN(DB8500_PIN_B17, "GPIO153_B17"), + PINCTRL_PIN(DB8500_PIN_C16, "GPIO154_C16"), + PINCTRL_PIN(DB8500_PIN_C19, "GPIO155_C19"), + PINCTRL_PIN(DB8500_PIN_C17, "GPIO156_C17"), + PINCTRL_PIN(DB8500_PIN_A18, "GPIO157_A18"), + PINCTRL_PIN(DB8500_PIN_C18, "GPIO158_C18"), + PINCTRL_PIN(DB8500_PIN_B19, "GPIO159_B19"), + PINCTRL_PIN(DB8500_PIN_B20, "GPIO160_B20"), + PINCTRL_PIN(DB8500_PIN_D21, "GPIO161_D21"), + PINCTRL_PIN(DB8500_PIN_D20, "GPIO162_D20"), + PINCTRL_PIN(DB8500_PIN_C20, "GPIO163_C20"), + PINCTRL_PIN(DB8500_PIN_B21, "GPIO164_B21"), + PINCTRL_PIN(DB8500_PIN_C21, "GPIO165_C21"), + PINCTRL_PIN(DB8500_PIN_A22, "GPIO166_A22"), + PINCTRL_PIN(DB8500_PIN_B24, "GPIO167_B24"), + PINCTRL_PIN(DB8500_PIN_C22, "GPIO168_C22"), + PINCTRL_PIN(DB8500_PIN_D22, "GPIO169_D22"), + PINCTRL_PIN(DB8500_PIN_C23, "GPIO170_C23"), + PINCTRL_PIN(DB8500_PIN_D23, "GPIO171_D23"), + /* Hole */ + PINCTRL_PIN(DB8500_PIN_AJ27, "GPIO192_AJ27"), + PINCTRL_PIN(DB8500_PIN_AH27, "GPIO193_AH27"), + PINCTRL_PIN(DB8500_PIN_AF27, "GPIO194_AF27"), + PINCTRL_PIN(DB8500_PIN_AG28, "GPIO195_AG28"), + PINCTRL_PIN(DB8500_PIN_AG26, "GPIO196_AG26"), + PINCTRL_PIN(DB8500_PIN_AH24, "GPIO197_AH24"), + PINCTRL_PIN(DB8500_PIN_AG25, "GPIO198_AG25"), + PINCTRL_PIN(DB8500_PIN_AH23, "GPIO199_AH23"), + PINCTRL_PIN(DB8500_PIN_AH26, "GPIO200_AH26"), + PINCTRL_PIN(DB8500_PIN_AF24, "GPIO201_AF24"), + PINCTRL_PIN(DB8500_PIN_AF25, "GPIO202_AF25"), + PINCTRL_PIN(DB8500_PIN_AE23, "GPIO203_AE23"), + PINCTRL_PIN(DB8500_PIN_AF23, "GPIO204_AF23"), + PINCTRL_PIN(DB8500_PIN_AG23, "GPIO205_AG23"), + PINCTRL_PIN(DB8500_PIN_AG24, "GPIO206_AG24"), + PINCTRL_PIN(DB8500_PIN_AJ23, "GPIO207_AJ23"), + PINCTRL_PIN(DB8500_PIN_AH16, "GPIO208_AH16"), + PINCTRL_PIN(DB8500_PIN_AG15, "GPIO209_AG15"), + PINCTRL_PIN(DB8500_PIN_AJ15, "GPIO210_AJ15"), + PINCTRL_PIN(DB8500_PIN_AG14, "GPIO211_AG14"), + PINCTRL_PIN(DB8500_PIN_AF13, "GPIO212_AF13"), + PINCTRL_PIN(DB8500_PIN_AG13, "GPIO213_AG13"), + PINCTRL_PIN(DB8500_PIN_AH15, "GPIO214_AH15"), + PINCTRL_PIN(DB8500_PIN_AH13, "GPIO215_AH13"), + PINCTRL_PIN(DB8500_PIN_AG12, "GPIO216_AG12"), + PINCTRL_PIN(DB8500_PIN_AH12, "GPIO217_AH12"), + PINCTRL_PIN(DB8500_PIN_AH11, "GPIO218_AH11"), + PINCTRL_PIN(DB8500_PIN_AG10, "GPIO219_AG10"), + PINCTRL_PIN(DB8500_PIN_AH10, "GPIO220_AH10"), + PINCTRL_PIN(DB8500_PIN_AJ11, "GPIO221_AJ11"), + PINCTRL_PIN(DB8500_PIN_AJ9, "GPIO222_AJ9"), + PINCTRL_PIN(DB8500_PIN_AH9, "GPIO223_AH9"), + PINCTRL_PIN(DB8500_PIN_AG9, "GPIO224_AG9"), + PINCTRL_PIN(DB8500_PIN_AG8, "GPIO225_AG8"), + PINCTRL_PIN(DB8500_PIN_AF8, "GPIO226_AF8"), + PINCTRL_PIN(DB8500_PIN_AH7, "GPIO227_AH7"), + PINCTRL_PIN(DB8500_PIN_AJ6, "GPIO228_AJ6"), + PINCTRL_PIN(DB8500_PIN_AG7, "GPIO229_AG7"), + PINCTRL_PIN(DB8500_PIN_AF7, "GPIO230_AF7"), + /* Hole */ + PINCTRL_PIN(DB8500_PIN_AF28, "GPIO256_AF28"), + PINCTRL_PIN(DB8500_PIN_AE29, "GPIO257_AE29"), + PINCTRL_PIN(DB8500_PIN_AD29, "GPIO258_AD29"), + PINCTRL_PIN(DB8500_PIN_AC29, "GPIO259_AC29"), + PINCTRL_PIN(DB8500_PIN_AD28, "GPIO260_AD28"), + PINCTRL_PIN(DB8500_PIN_AD26, "GPIO261_AD26"), + PINCTRL_PIN(DB8500_PIN_AE26, "GPIO262_AE26"), + PINCTRL_PIN(DB8500_PIN_AG29, "GPIO263_AG29"), + PINCTRL_PIN(DB8500_PIN_AE27, "GPIO264_AE27"), + PINCTRL_PIN(DB8500_PIN_AD27, "GPIO265_AD27"), + PINCTRL_PIN(DB8500_PIN_AC28, "GPIO266_AC28"), + PINCTRL_PIN(DB8500_PIN_AC27, "GPIO267_AC27"), +}; + +#define DB8500_GPIO_RANGE(a, b, c) { .name = "DB8500", .id = a, .base = b, \ + .pin_base = b, .npins = c } + +/* + * This matches the 32-pin gpio chips registered by the GPIO portion. This + * cannot be const since we assign the struct gpio_chip * pointer at runtime. + */ +static struct pinctrl_gpio_range nmk_db8500_ranges[] = { + DB8500_GPIO_RANGE(0, 0, 32), + DB8500_GPIO_RANGE(1, 32, 5), + DB8500_GPIO_RANGE(2, 64, 32), + DB8500_GPIO_RANGE(3, 96, 2), + DB8500_GPIO_RANGE(4, 128, 32), + DB8500_GPIO_RANGE(5, 160, 12), + DB8500_GPIO_RANGE(6, 192, 32), + DB8500_GPIO_RANGE(7, 224, 7), + DB8500_GPIO_RANGE(8, 256, 12), +}; + +/* + * Read the pin group names like this: + * u0_a_1 = first groups of pins for uart0 on alt function a + * i2c2_b_2 = second group of pins for i2c2 on alt function b + * + * The groups are arranged as sets per altfunction column, so we can + * mux in one group at a time by selecting the same altfunction for them + * all. When functions require pins on different altfunctions, you need + * to combine several groups. + */ + +/* Altfunction A column */ +static const unsigned u0_a_1_pins[] = { DB8500_PIN_AJ5, DB8500_PIN_AJ3, + DB8500_PIN_AH4, DB8500_PIN_AH3 }; +static const unsigned u1rxtx_a_1_pins[] = { DB8500_PIN_AH6, DB8500_PIN_AG6 }; +static const unsigned u1ctsrts_a_1_pins[] = { DB8500_PIN_AF6, DB8500_PIN_AG5 }; +/* Image processor I2C line, this is driven by image processor firmware */ +static const unsigned ipi2c_a_1_pins[] = { DB8500_PIN_AD5, DB8500_PIN_AE4 }; +static const unsigned ipi2c_a_2_pins[] = { DB8500_PIN_AF5, DB8500_PIN_AG4 }; +/* MSP0 can only be on these pins, but TXD and RXD can be flipped */ +static const unsigned msp0txrx_a_1_pins[] = { DB8500_PIN_AC4, DB8500_PIN_AC3 }; +static const unsigned msp0tfstck_a_1_pins[] = { DB8500_PIN_AF3, DB8500_PIN_AE3 }; +static const unsigned msp0rfsrck_a_1_pins[] = { DB8500_PIN_AD3, DB8500_PIN_AD4 }; +/* Basic pins of the MMC/SD card 0 interface */ +static const unsigned mc0_a_1_pins[] = { DB8500_PIN_AC2, DB8500_PIN_AC1, + DB8500_PIN_AB4, DB8500_PIN_AA3, DB8500_PIN_AA4, DB8500_PIN_AB2, + DB8500_PIN_Y4, DB8500_PIN_Y2, DB8500_PIN_AA2, DB8500_PIN_AA1 }; +/* Often only 4 bits are used, then these are not needed (only used for MMC) */ +static const unsigned mc0_dat47_a_1_pins[] = { DB8500_PIN_W2, DB8500_PIN_W3, + DB8500_PIN_V3, DB8500_PIN_V2}; +static const unsigned mc0dat31dir_a_1_pins[] = { DB8500_PIN_AB3 }; +/* MSP1 can only be on these pins, but TXD and RXD can be flipped */ +static const unsigned msp1txrx_a_1_pins[] = { DB8500_PIN_AF2, DB8500_PIN_AG2 }; +static const unsigned msp1_a_1_pins[] = { DB8500_PIN_AE1, DB8500_PIN_AE2 }; +/* LCD interface */ +static const unsigned lcdb_a_1_pins[] = { DB8500_PIN_F3, DB8500_PIN_F1, + DB8500_PIN_G3, DB8500_PIN_G2 }; +static const unsigned lcdvsi0_a_1_pins[] = { DB8500_PIN_E1 }; +static const unsigned lcdvsi1_a_1_pins[] = { DB8500_PIN_E2 }; +static const unsigned lcd_d0_d7_a_1_pins[] = { + DB8500_PIN_G5, DB8500_PIN_G4, DB8500_PIN_H4, DB8500_PIN_H3, + DB8500_PIN_J3, DB8500_PIN_H2, DB8500_PIN_J2, DB8500_PIN_H1 }; +/* D8 thru D11 often used as TVOUT lines */ +static const unsigned lcd_d8_d11_a_1_pins[] = { DB8500_PIN_F4, + DB8500_PIN_E3, DB8500_PIN_E4, DB8500_PIN_D2 }; +static const unsigned lcd_d12_d23_a_1_pins[] = { + DB8500_PIN_C1, DB8500_PIN_D3, DB8500_PIN_C2, DB8500_PIN_D5, + DB8500_PIN_C6, DB8500_PIN_B3, DB8500_PIN_C4, DB8500_PIN_E6, + DB8500_PIN_A3, DB8500_PIN_B6, DB8500_PIN_D6, DB8500_PIN_B7 }; +static const unsigned kp_a_1_pins[] = { DB8500_PIN_D7, DB8500_PIN_E8, + DB8500_PIN_D8, DB8500_PIN_D9 }; +static const unsigned kpskaskb_a_1_pins[] = { DB8500_PIN_D17, DB8500_PIN_D16 }; +static const unsigned kp_a_2_pins[] = { + DB8500_PIN_B17, DB8500_PIN_C16, DB8500_PIN_C19, DB8500_PIN_C17, + DB8500_PIN_A18, DB8500_PIN_C18, DB8500_PIN_B19, DB8500_PIN_B20, + DB8500_PIN_D21, DB8500_PIN_D20, DB8500_PIN_C20, DB8500_PIN_B21, + DB8500_PIN_C21, DB8500_PIN_A22, DB8500_PIN_B24, DB8500_PIN_C22 }; +/* MC2 has 8 data lines and no direction control, so only for (e)MMC */ +static const unsigned mc2_a_1_pins[] = { DB8500_PIN_A5, DB8500_PIN_B4, + DB8500_PIN_C8, DB8500_PIN_A12, DB8500_PIN_C10, DB8500_PIN_B10, + DB8500_PIN_B9, DB8500_PIN_A9, DB8500_PIN_C7, DB8500_PIN_A7, + DB8500_PIN_C5 }; +static const unsigned ssp1_a_1_pins[] = { DB8500_PIN_C9, DB8500_PIN_B11, + DB8500_PIN_C12, DB8500_PIN_C11 }; +static const unsigned ssp0_a_1_pins[] = { DB8500_PIN_D12, DB8500_PIN_B13, + DB8500_PIN_C13, DB8500_PIN_D13 }; +static const unsigned i2c0_a_1_pins[] = { DB8500_PIN_C15, DB8500_PIN_B16 }; +/* + * Image processor GPIO pins are named "ipgpio" and have their own + * numberspace + */ +static const unsigned ipgpio0_a_1_pins[] = { DB8500_PIN_B14 }; +static const unsigned ipgpio1_a_1_pins[] = { DB8500_PIN_C14 }; +/* Three modem pins named RF_PURn, MODEM_STATE and MODEM_PWREN */ +static const unsigned modem_a_1_pins[] = { DB8500_PIN_D22, DB8500_PIN_C23, + DB8500_PIN_D23 }; +/* + * This MSP cannot switch RX and TX, SCK in a separate group since this + * seems to be optional. + */ +static const unsigned msp2sck_a_1_pins[] = { DB8500_PIN_AJ27 }; +static const unsigned msp2_a_1_pins[] = { DB8500_PIN_AH27, DB8500_PIN_AF27, + DB8500_PIN_AG28, DB8500_PIN_AG26 }; +static const unsigned mc4_a_1_pins[] = { DB8500_PIN_AH24, DB8500_PIN_AG25, + DB8500_PIN_AH23, DB8500_PIN_AH26, DB8500_PIN_AF24, DB8500_PIN_AF25, + DB8500_PIN_AE23, DB8500_PIN_AF23, DB8500_PIN_AG23, DB8500_PIN_AG24, + DB8500_PIN_AJ23 }; +/* MC1 has only 4 data pins, designed for SD or SDIO exclusively */ +static const unsigned mc1_a_1_pins[] = { DB8500_PIN_AH16, DB8500_PIN_AG15, + DB8500_PIN_AJ15, DB8500_PIN_AG14, DB8500_PIN_AF13, DB8500_PIN_AG13, + DB8500_PIN_AH15 }; +static const unsigned mc1dir_a_1_pins[] = { DB8500_PIN_AH13, DB8500_PIN_AG12, + DB8500_PIN_AH12, DB8500_PIN_AH11 }; +static const unsigned hsir_a_1_pins[] = { DB8500_PIN_AG10, DB8500_PIN_AH10 }; +static const unsigned hsit_a_1_pins[] = { DB8500_PIN_AJ11, DB8500_PIN_AJ9, + DB8500_PIN_AH9, DB8500_PIN_AG9, DB8500_PIN_AG8, DB8500_PIN_AF8 }; +static const unsigned clkout_a_1_pins[] = { DB8500_PIN_AH7, DB8500_PIN_AJ6 }; +static const unsigned clkout_a_2_pins[] = { DB8500_PIN_AG7, DB8500_PIN_AF7 }; +static const unsigned usb_a_1_pins[] = { DB8500_PIN_AF28, DB8500_PIN_AE29, + DB8500_PIN_AD29, DB8500_PIN_AC29, DB8500_PIN_AD28, DB8500_PIN_AD26, + DB8500_PIN_AE26, DB8500_PIN_AG29, DB8500_PIN_AE27, DB8500_PIN_AD27, + DB8500_PIN_AC28, DB8500_PIN_AC27 }; + +/* Altfunction B column */ +static const unsigned trig_b_1_pins[] = { DB8500_PIN_AJ5, DB8500_PIN_AJ3 }; +static const unsigned i2c4_b_1_pins[] = { DB8500_PIN_AH6, DB8500_PIN_AG6 }; +static const unsigned i2c1_b_1_pins[] = { DB8500_PIN_AF6, DB8500_PIN_AG5 }; +static const unsigned i2c2_b_1_pins[] = { DB8500_PIN_AD5, DB8500_PIN_AE4 }; +static const unsigned i2c2_b_2_pins[] = { DB8500_PIN_AF5, DB8500_PIN_AG4 }; +static const unsigned msp0txrx_b_1_pins[] = { DB8500_PIN_AC4, DB8500_PIN_AC3 }; +static const unsigned i2c1_b_2_pins[] = { DB8500_PIN_AD3, DB8500_PIN_AD4 }; +/* Just RX and TX for UART2 */ +static const unsigned u2rxtx_b_1_pins[] = { DB8500_PIN_AC2, DB8500_PIN_AC1 }; +static const unsigned uartmodtx_b_1_pins[] = { DB8500_PIN_AB4 }; +static const unsigned msp0sck_b_1_pins[] = { DB8500_PIN_AB3 }; +static const unsigned uartmodrx_b_1_pins[] = { DB8500_PIN_AA3 }; +static const unsigned stmmod_b_1_pins[] = { DB8500_PIN_AA4, DB8500_PIN_Y4, + DB8500_PIN_Y2, DB8500_PIN_AA2, DB8500_PIN_AA1 }; +static const unsigned uartmodrx_b_2_pins[] = { DB8500_PIN_AB2 }; +static const unsigned spi3_b_1_pins[] = { DB8500_PIN_W2, DB8500_PIN_W3, + DB8500_PIN_V3, DB8500_PIN_V2 }; +static const unsigned msp1txrx_b_1_pins[] = { DB8500_PIN_AF2, DB8500_PIN_AG2 }; +static const unsigned kp_b_1_pins[] = { DB8500_PIN_F3, DB8500_PIN_F1, + DB8500_PIN_G3, DB8500_PIN_G2, DB8500_PIN_E1, DB8500_PIN_E2, + DB8500_PIN_G5, DB8500_PIN_G4, DB8500_PIN_H4, DB8500_PIN_H3, + DB8500_PIN_J3, DB8500_PIN_H2, DB8500_PIN_J2, DB8500_PIN_H1, + DB8500_PIN_F4, DB8500_PIN_E3, DB8500_PIN_E4, DB8500_PIN_D2, + DB8500_PIN_C1, DB8500_PIN_D3, DB8500_PIN_C2, DB8500_PIN_D5 }; +static const unsigned sm_b_1_pins[] = { DB8500_PIN_C6, DB8500_PIN_B3, + DB8500_PIN_C4, DB8500_PIN_E6, DB8500_PIN_A3, DB8500_PIN_B6, + DB8500_PIN_D6, DB8500_PIN_B7, DB8500_PIN_D7, DB8500_PIN_D8, + DB8500_PIN_D9, DB8500_PIN_A5, DB8500_PIN_B4, DB8500_PIN_C8, + DB8500_PIN_A12, DB8500_PIN_C10, DB8500_PIN_B10, DB8500_PIN_B9, + DB8500_PIN_A9, DB8500_PIN_C7, DB8500_PIN_A7, DB8500_PIN_C5, + DB8500_PIN_C9, DB8500_PIN_B14 }; +/* This chip select pin can be "ps0" in alt B so have it separately */ +static const unsigned smcs0_b_1_pins[] = { DB8500_PIN_E8 }; +static const unsigned ipgpio7_b_1_pins[] = { DB8500_PIN_B11 }; +static const unsigned ipgpio2_b_1_pins[] = { DB8500_PIN_C12 }; +static const unsigned ipgpio3_b_1_pins[] = { DB8500_PIN_C11 }; +static const unsigned lcdaclk_b_1_pins[] = { DB8500_PIN_C14 }; +static const unsigned lcda_b_1_pins[] = { DB8500_PIN_D22, + DB8500_PIN_C23, DB8500_PIN_D23 }; +static const unsigned lcd_b_1_pins[] = { DB8500_PIN_D17, DB8500_PIN_D16, + DB8500_PIN_B17, DB8500_PIN_C16, DB8500_PIN_C19, DB8500_PIN_C17, + DB8500_PIN_A18, DB8500_PIN_C18, DB8500_PIN_B19, DB8500_PIN_B20, + DB8500_PIN_D21, DB8500_PIN_D20, DB8500_PIN_C20, DB8500_PIN_B21, + DB8500_PIN_C21, DB8500_PIN_A22, DB8500_PIN_B24, DB8500_PIN_C22 }; +static const unsigned ddrtrig_b_1_pins[] = { DB8500_PIN_AJ27 }; +static const unsigned pwl_b_1_pins[] = { DB8500_PIN_AF25 }; +static const unsigned spi1_b_1_pins[] = { DB8500_PIN_AG15, DB8500_PIN_AF13, + DB8500_PIN_AG13, DB8500_PIN_AH15 }; +static const unsigned mc3_b_1_pins[] = { DB8500_PIN_AH13, DB8500_PIN_AG12, + DB8500_PIN_AH12, DB8500_PIN_AH11, DB8500_PIN_AG10, DB8500_PIN_AH10, + DB8500_PIN_AJ11, DB8500_PIN_AJ9, DB8500_PIN_AH9, DB8500_PIN_AG9, + DB8500_PIN_AG8 }; +static const unsigned pwl_b_2_pins[] = { DB8500_PIN_AF8 }; +static const unsigned pwl_b_3_pins[] = { DB8500_PIN_AG7 }; +static const unsigned pwl_b_4_pins[] = { DB8500_PIN_AF7 }; + +/* Altfunction C column */ +static const unsigned ipjtag_c_1_pins[] = { DB8500_PIN_AJ5, DB8500_PIN_AJ3, + DB8500_PIN_AH4, DB8500_PIN_AH3, DB8500_PIN_AH6 }; +static const unsigned ipgpio6_c_1_pins[] = { DB8500_PIN_AG6 }; +static const unsigned ipgpio0_c_1_pins[] = { DB8500_PIN_AF6 }; +static const unsigned ipgpio1_c_1_pins[] = { DB8500_PIN_AG5 }; +static const unsigned ipgpio3_c_1_pins[] = { DB8500_PIN_AF5 }; +static const unsigned ipgpio2_c_1_pins[] = { DB8500_PIN_AG4 }; +static const unsigned slim0_c_1_pins[] = { DB8500_PIN_AD3, DB8500_PIN_AD4 }; +/* Optional 4-bit Memory Stick interface */ +static const unsigned ms_c_1_pins[] = { DB8500_PIN_AC2, DB8500_PIN_AC1, + DB8500_PIN_AB3, DB8500_PIN_AA3, DB8500_PIN_AA4, DB8500_PIN_AB2, + DB8500_PIN_Y4, DB8500_PIN_Y2, DB8500_PIN_AA2, DB8500_PIN_AA1 }; +static const unsigned iptrigout_c_1_pins[] = { DB8500_PIN_AB4 }; +static const unsigned u2rxtx_c_1_pins[] = { DB8500_PIN_W2, DB8500_PIN_W3 }; +static const unsigned u2ctsrts_c_1_pins[] = { DB8500_PIN_V3, DB8500_PIN_V2 }; +static const unsigned u0_c_1_pins[] = { DB8500_PIN_AF2, DB8500_PIN_AE1, + DB8500_PIN_AE2, DB8500_PIN_AG2 }; +static const unsigned ipgpio4_c_1_pins[] = { DB8500_PIN_F3 }; +static const unsigned ipgpio5_c_1_pins[] = { DB8500_PIN_F1 }; +static const unsigned ipgpio6_c_2_pins[] = { DB8500_PIN_G3 }; +static const unsigned ipgpio7_c_1_pins[] = { DB8500_PIN_G2 }; +static const unsigned smcleale_c_1_pins[] = { DB8500_PIN_E1, DB8500_PIN_E2 }; +static const unsigned stmape_c_1_pins[] = { DB8500_PIN_G5, DB8500_PIN_G4, + DB8500_PIN_H4, DB8500_PIN_H3, DB8500_PIN_J3 }; +static const unsigned u2rxtx_c_2_pins[] = { DB8500_PIN_H2, DB8500_PIN_J2 }; +static const unsigned ipgpio2_c_2_pins[] = { DB8500_PIN_F4 }; +static const unsigned ipgpio3_c_2_pins[] = { DB8500_PIN_E3 }; +static const unsigned ipgpio4_c_2_pins[] = { DB8500_PIN_E4 }; +static const unsigned ipgpio5_c_2_pins[] = { DB8500_PIN_D2 }; +static const unsigned mc5_c_1_pins[] = { DB8500_PIN_C6, DB8500_PIN_B3, + DB8500_PIN_C4, DB8500_PIN_E6, DB8500_PIN_A3, DB8500_PIN_B6, + DB8500_PIN_D6, DB8500_PIN_B7, DB8500_PIN_D7, DB8500_PIN_D8, + DB8500_PIN_D9 }; +static const unsigned mc2rstn_c_1_pins[] = { DB8500_PIN_C8 }; +static const unsigned kp_c_1_pins[] = { DB8500_PIN_C9, DB8500_PIN_B11, + DB8500_PIN_C12, DB8500_PIN_C11, DB8500_PIN_D17, DB8500_PIN_D16, + DB8500_PIN_C23, DB8500_PIN_D23 }; +static const unsigned smps1_c_1_pins[] = { DB8500_PIN_B14 }; +static const unsigned u2rxtx_c_3_pins[] = { DB8500_PIN_B17, DB8500_PIN_C16 }; +static const unsigned stmape_c_2_pins[] = { DB8500_PIN_C19, DB8500_PIN_C17, + DB8500_PIN_A18, DB8500_PIN_C18, DB8500_PIN_B19 }; +static const unsigned uartmodrx_c_1_pins[] = { DB8500_PIN_D21 }; +static const unsigned uartmodtx_c_1_pins[] = { DB8500_PIN_D20 }; +static const unsigned stmmod_c_1_pins[] = { DB8500_PIN_C20, DB8500_PIN_B21, + DB8500_PIN_C21, DB8500_PIN_A22, DB8500_PIN_B24 }; +static const unsigned usbsim_c_1_pins[] = { DB8500_PIN_D22 }; +static const unsigned mc4rstn_c_1_pins[] = { DB8500_PIN_AF25 }; +static const unsigned clkout_c_1_pins[] = { DB8500_PIN_AH13, DB8500_PIN_AH12 }; +static const unsigned i2c3_c_1_pins[] = { DB8500_PIN_AG12, DB8500_PIN_AH11 }; +static const unsigned spi0_c_1_pins[] = { DB8500_PIN_AH10, DB8500_PIN_AH9, + DB8500_PIN_AG9, DB8500_PIN_AG8 }; +static const unsigned usbsim_c_2_pins[] = { DB8500_PIN_AF8 }; +static const unsigned i2c3_c_2_pins[] = { DB8500_PIN_AG7, DB8500_PIN_AF7 }; + +/* Other C1 column */ +static const unsigned kp_oc1_1_pins[] = { DB8500_PIN_C6, DB8500_PIN_B3, + DB8500_PIN_C4, DB8500_PIN_E6, DB8500_PIN_A3, DB8500_PIN_B6, + DB8500_PIN_D6, DB8500_PIN_B7 }; +static const unsigned spi2_oc1_1_pins[] = { DB8500_PIN_AH13, DB8500_PIN_AG12, + DB8500_PIN_AH12, DB8500_PIN_AH11 }; + +#define DB8500_PIN_GROUP(a,b) { .name = #a, .pins = a##_pins, \ + .npins = ARRAY_SIZE(a##_pins), .altsetting = b } + +static const struct nmk_pingroup nmk_db8500_groups[] = { + /* Altfunction A column */ + DB8500_PIN_GROUP(u0_a_1, NMK_GPIO_ALT_A), + DB8500_PIN_GROUP(u1rxtx_a_1, NMK_GPIO_ALT_A), + DB8500_PIN_GROUP(u1ctsrts_a_1, NMK_GPIO_ALT_A), + DB8500_PIN_GROUP(ipi2c_a_1, NMK_GPIO_ALT_A), + DB8500_PIN_GROUP(ipi2c_a_2, NMK_GPIO_ALT_A), + DB8500_PIN_GROUP(msp0txrx_a_1, NMK_GPIO_ALT_A), + DB8500_PIN_GROUP(msp0tfstck_a_1, NMK_GPIO_ALT_A), + DB8500_PIN_GROUP(msp0rfsrck_a_1, NMK_GPIO_ALT_A), + DB8500_PIN_GROUP(mc0_a_1, NMK_GPIO_ALT_A), + DB8500_PIN_GROUP(msp1txrx_a_1, NMK_GPIO_ALT_A), + DB8500_PIN_GROUP(msp1_a_1, NMK_GPIO_ALT_A), + DB8500_PIN_GROUP(lcdb_a_1, NMK_GPIO_ALT_A), + DB8500_PIN_GROUP(lcdvsi0_a_1, NMK_GPIO_ALT_A), + DB8500_PIN_GROUP(lcdvsi1_a_1, NMK_GPIO_ALT_A), + DB8500_PIN_GROUP(lcd_d0_d7_a_1, NMK_GPIO_ALT_A), + DB8500_PIN_GROUP(lcd_d8_d11_a_1, NMK_GPIO_ALT_A), + DB8500_PIN_GROUP(lcd_d12_d23_a_1, NMK_GPIO_ALT_A), + DB8500_PIN_GROUP(kp_a_1, NMK_GPIO_ALT_A), + DB8500_PIN_GROUP(mc2_a_1, NMK_GPIO_ALT_A), + DB8500_PIN_GROUP(ssp1_a_1, NMK_GPIO_ALT_A), + DB8500_PIN_GROUP(ssp0_a_1, NMK_GPIO_ALT_A), + DB8500_PIN_GROUP(i2c0_a_1, NMK_GPIO_ALT_A), + DB8500_PIN_GROUP(ipgpio0_a_1, NMK_GPIO_ALT_A), + DB8500_PIN_GROUP(ipgpio1_a_1, NMK_GPIO_ALT_A), + DB8500_PIN_GROUP(msp2sck_a_1, NMK_GPIO_ALT_A), + DB8500_PIN_GROUP(msp2_a_1, NMK_GPIO_ALT_A), + DB8500_PIN_GROUP(mc4_a_1, NMK_GPIO_ALT_A), + DB8500_PIN_GROUP(mc1_a_1, NMK_GPIO_ALT_A), + DB8500_PIN_GROUP(hsir_a_1, NMK_GPIO_ALT_A), + DB8500_PIN_GROUP(hsit_a_1, NMK_GPIO_ALT_A), + DB8500_PIN_GROUP(clkout_a_1, NMK_GPIO_ALT_A), + DB8500_PIN_GROUP(clkout_a_2, NMK_GPIO_ALT_A), + DB8500_PIN_GROUP(usb_a_1, NMK_GPIO_ALT_A), + /* Altfunction B column */ + DB8500_PIN_GROUP(trig_b_1, NMK_GPIO_ALT_B), + DB8500_PIN_GROUP(i2c4_b_1, NMK_GPIO_ALT_B), + DB8500_PIN_GROUP(i2c1_b_1, NMK_GPIO_ALT_B), + DB8500_PIN_GROUP(i2c2_b_1, NMK_GPIO_ALT_B), + DB8500_PIN_GROUP(i2c2_b_2, NMK_GPIO_ALT_B), + DB8500_PIN_GROUP(msp0txrx_b_1, NMK_GPIO_ALT_B), + DB8500_PIN_GROUP(i2c1_b_2, NMK_GPIO_ALT_B), + DB8500_PIN_GROUP(u2rxtx_b_1, NMK_GPIO_ALT_B), + DB8500_PIN_GROUP(uartmodtx_b_1, NMK_GPIO_ALT_B), + DB8500_PIN_GROUP(msp0sck_b_1, NMK_GPIO_ALT_B), + DB8500_PIN_GROUP(uartmodrx_b_1, NMK_GPIO_ALT_B), + DB8500_PIN_GROUP(stmmod_b_1, NMK_GPIO_ALT_B), + DB8500_PIN_GROUP(uartmodrx_b_2, NMK_GPIO_ALT_B), + DB8500_PIN_GROUP(spi3_b_1, NMK_GPIO_ALT_B), + DB8500_PIN_GROUP(msp1txrx_b_1, NMK_GPIO_ALT_B), + DB8500_PIN_GROUP(kp_b_1, NMK_GPIO_ALT_B), + DB8500_PIN_GROUP(sm_b_1, NMK_GPIO_ALT_B), + DB8500_PIN_GROUP(smcs0_b_1, NMK_GPIO_ALT_B), + DB8500_PIN_GROUP(ipgpio7_b_1, NMK_GPIO_ALT_B), + DB8500_PIN_GROUP(ipgpio2_b_1, NMK_GPIO_ALT_B), + DB8500_PIN_GROUP(ipgpio3_b_1, NMK_GPIO_ALT_B), + DB8500_PIN_GROUP(lcdaclk_b_1, NMK_GPIO_ALT_B), + DB8500_PIN_GROUP(lcda_b_1, NMK_GPIO_ALT_B), + DB8500_PIN_GROUP(lcd_b_1, NMK_GPIO_ALT_B), + DB8500_PIN_GROUP(ddrtrig_b_1, NMK_GPIO_ALT_B), + DB8500_PIN_GROUP(pwl_b_1, NMK_GPIO_ALT_B), + DB8500_PIN_GROUP(spi1_b_1, NMK_GPIO_ALT_B), + DB8500_PIN_GROUP(mc3_b_1, NMK_GPIO_ALT_B), + DB8500_PIN_GROUP(pwl_b_2, NMK_GPIO_ALT_B), + DB8500_PIN_GROUP(pwl_b_3, NMK_GPIO_ALT_B), + DB8500_PIN_GROUP(pwl_b_4, NMK_GPIO_ALT_B), + /* Altfunction C column */ + DB8500_PIN_GROUP(ipjtag_c_1, NMK_GPIO_ALT_C), + DB8500_PIN_GROUP(ipgpio6_c_1, NMK_GPIO_ALT_C), + DB8500_PIN_GROUP(ipgpio0_c_1, NMK_GPIO_ALT_C), + DB8500_PIN_GROUP(ipgpio1_c_1, NMK_GPIO_ALT_C), + DB8500_PIN_GROUP(ipgpio3_c_1, NMK_GPIO_ALT_C), + DB8500_PIN_GROUP(ipgpio2_c_1, NMK_GPIO_ALT_C), + DB8500_PIN_GROUP(slim0_c_1, NMK_GPIO_ALT_C), + DB8500_PIN_GROUP(ms_c_1, NMK_GPIO_ALT_C), + DB8500_PIN_GROUP(iptrigout_c_1, NMK_GPIO_ALT_C), + DB8500_PIN_GROUP(u2rxtx_c_1, NMK_GPIO_ALT_C), + DB8500_PIN_GROUP(u2ctsrts_c_1, NMK_GPIO_ALT_C), + DB8500_PIN_GROUP(u0_c_1, NMK_GPIO_ALT_C), + DB8500_PIN_GROUP(ipgpio4_c_1, NMK_GPIO_ALT_C), + DB8500_PIN_GROUP(ipgpio5_c_1, NMK_GPIO_ALT_C), + DB8500_PIN_GROUP(ipgpio6_c_1, NMK_GPIO_ALT_C), + DB8500_PIN_GROUP(ipgpio7_c_1, NMK_GPIO_ALT_C), + DB8500_PIN_GROUP(smcleale_c_1, NMK_GPIO_ALT_C), + DB8500_PIN_GROUP(stmape_c_1, NMK_GPIO_ALT_C), + DB8500_PIN_GROUP(u2rxtx_c_2, NMK_GPIO_ALT_C), + DB8500_PIN_GROUP(ipgpio2_c_2, NMK_GPIO_ALT_C), + DB8500_PIN_GROUP(ipgpio3_c_2, NMK_GPIO_ALT_C), + DB8500_PIN_GROUP(ipgpio4_c_2, NMK_GPIO_ALT_C), + DB8500_PIN_GROUP(ipgpio5_c_2, NMK_GPIO_ALT_C), + DB8500_PIN_GROUP(mc5_c_1, NMK_GPIO_ALT_C), + DB8500_PIN_GROUP(mc2rstn_c_1, NMK_GPIO_ALT_C), + DB8500_PIN_GROUP(kp_c_1, NMK_GPIO_ALT_C), + DB8500_PIN_GROUP(smps1_c_1, NMK_GPIO_ALT_C), + DB8500_PIN_GROUP(u2rxtx_c_3, NMK_GPIO_ALT_C), + DB8500_PIN_GROUP(stmape_c_2, NMK_GPIO_ALT_C), + DB8500_PIN_GROUP(uartmodrx_c_1, NMK_GPIO_ALT_C), + DB8500_PIN_GROUP(uartmodtx_c_1, NMK_GPIO_ALT_C), + DB8500_PIN_GROUP(stmmod_c_1, NMK_GPIO_ALT_C), + DB8500_PIN_GROUP(usbsim_c_1, NMK_GPIO_ALT_C), + DB8500_PIN_GROUP(mc4rstn_c_1, NMK_GPIO_ALT_C), + DB8500_PIN_GROUP(clkout_c_1, NMK_GPIO_ALT_C), + DB8500_PIN_GROUP(i2c3_c_1, NMK_GPIO_ALT_C), + DB8500_PIN_GROUP(spi0_c_1, NMK_GPIO_ALT_C), + DB8500_PIN_GROUP(usbsim_c_2, NMK_GPIO_ALT_C), + DB8500_PIN_GROUP(i2c3_c_2, NMK_GPIO_ALT_C), + /* Other alt C1 column, these are still configured as alt C */ + DB8500_PIN_GROUP(kp_oc1_1, NMK_GPIO_ALT_C), + DB8500_PIN_GROUP(spi2_oc1_1, NMK_GPIO_ALT_C), +}; + +static const struct nmk_pinctrl_soc_data nmk_db8500_soc = { + .gpio_ranges = nmk_db8500_ranges, + .gpio_num_ranges = ARRAY_SIZE(nmk_db8500_ranges), + .pins = nmk_db8500_pins, + .npins = ARRAY_SIZE(nmk_db8500_pins), + .groups = nmk_db8500_groups, + .ngroups = ARRAY_SIZE(nmk_db8500_groups), +}; + +void __devinit +nmk_pinctrl_db8500_init(const struct nmk_pinctrl_soc_data **soc) +{ + *soc = &nmk_db8500_soc; +} diff --git a/drivers/pinctrl/pinctrl-nomadik.c b/drivers/pinctrl/pinctrl-nomadik.c index 1352f336844..7d5484fee5f 100644 --- a/drivers/pinctrl/pinctrl-nomadik.c +++ b/drivers/pinctrl/pinctrl-nomadik.c @@ -24,12 +24,15 @@ #include #include #include +#include #include #include #include +#include "pinctrl-nomadik.h" + /* * The GPIO module in the Nomadik family of Systems-on-Chip is an * AMBA device, managing 32 pins and alternate functions. The logic block @@ -64,6 +67,12 @@ struct nmk_gpio_chip { u32 lowemi; }; +struct nmk_pinctrl { + struct device *dev; + struct pinctrl_dev *pctl; + const struct nmk_pinctrl_soc_data *soc; +}; + static struct nmk_gpio_chip * nmk_gpio_chips[DIV_ROUND_UP(ARCH_NR_GPIOS, NMK_GPIO_PER_CHIP)]; @@ -1282,6 +1291,98 @@ out: return ret; } +static int nmk_get_groups_cnt(struct pinctrl_dev *pctldev) +{ + struct nmk_pinctrl *npct = pinctrl_dev_get_drvdata(pctldev); + + return npct->soc->ngroups; +} + +static const char *nmk_get_group_name(struct pinctrl_dev *pctldev, + unsigned selector) +{ + struct nmk_pinctrl *npct = pinctrl_dev_get_drvdata(pctldev); + + return npct->soc->groups[selector].name; +} + +static int nmk_get_group_pins(struct pinctrl_dev *pctldev, unsigned selector, + const unsigned **pins, + unsigned *num_pins) +{ + struct nmk_pinctrl *npct = pinctrl_dev_get_drvdata(pctldev); + + *pins = npct->soc->groups[selector].pins; + *num_pins = npct->soc->groups[selector].npins; + return 0; +} + +static void nmk_pin_dbg_show(struct pinctrl_dev *pctldev, struct seq_file *s, + unsigned offset) +{ + seq_printf(s, " Nomadik GPIO"); +} + +static struct pinctrl_ops nmk_pinctrl_ops = { + .get_groups_count = nmk_get_groups_cnt, + .get_group_name = nmk_get_group_name, + .get_group_pins = nmk_get_group_pins, + .pin_dbg_show = nmk_pin_dbg_show, +}; + +static struct pinctrl_desc nmk_pinctrl_desc = { + .name = "pinctrl-nomadik", + .pctlops = &nmk_pinctrl_ops, + .owner = THIS_MODULE, +}; + +static int __devinit nmk_pinctrl_probe(struct platform_device *pdev) +{ + const struct platform_device_id *platid = platform_get_device_id(pdev); + struct nmk_pinctrl *npct; + int i; + + npct = devm_kzalloc(&pdev->dev, sizeof(*npct), GFP_KERNEL); + if (!npct) + return -ENOMEM; + + /* Poke in other ASIC variants here */ + if (platid->driver_data == PINCTRL_NMK_DB8500) + nmk_pinctrl_db8500_init(&npct->soc); + + /* + * We need all the GPIO drivers to probe FIRST, or we will not be able + * to obtain references to the struct gpio_chip * for them, and we + * need this to proceed. + */ + for (i = 0; i < npct->soc->gpio_num_ranges; i++) { + if (!nmk_gpio_chips[i]) { + dev_warn(&pdev->dev, "GPIO chip %d not registered yet\n", i); + devm_kfree(&pdev->dev, npct); + return -EPROBE_DEFER; + } + npct->soc->gpio_ranges[i].gc = &nmk_gpio_chips[i]->chip; + } + + nmk_pinctrl_desc.pins = npct->soc->pins; + nmk_pinctrl_desc.npins = npct->soc->npins; + npct->dev = &pdev->dev; + npct->pctl = pinctrl_register(&nmk_pinctrl_desc, &pdev->dev, npct); + if (!npct->pctl) { + dev_err(&pdev->dev, "could not register Nomadik pinctrl driver\n"); + return -EINVAL; + } + + /* We will handle a range of GPIO pins */ + for (i = 0; i < npct->soc->gpio_num_ranges; i++) + pinctrl_add_gpio_range(npct->pctl, &npct->soc->gpio_ranges[i]); + + platform_set_drvdata(pdev, npct); + dev_info(&pdev->dev, "initialized Nomadik pin control driver\n"); + + return 0; +} + static const struct of_device_id nmk_gpio_match[] = { { .compatible = "st,nomadik-gpio", }, {} @@ -1296,9 +1397,28 @@ static struct platform_driver nmk_gpio_driver = { .probe = nmk_gpio_probe, }; +static const struct platform_device_id nmk_pinctrl_id[] = { + { "pinctrl-stn8815", PINCTRL_NMK_STN8815 }, + { "pinctrl-db8500", PINCTRL_NMK_DB8500 }, +}; + +static struct platform_driver nmk_pinctrl_driver = { + .driver = { + .owner = THIS_MODULE, + .name = "pinctrl-nomadik", + }, + .probe = nmk_pinctrl_probe, + .id_table = nmk_pinctrl_id, +}; + static int __init nmk_gpio_init(void) { - return platform_driver_register(&nmk_gpio_driver); + int ret; + + ret = platform_driver_register(&nmk_gpio_driver); + if (ret) + return ret; + return platform_driver_register(&nmk_pinctrl_driver); } core_initcall(nmk_gpio_init); diff --git a/drivers/pinctrl/pinctrl-nomadik.h b/drivers/pinctrl/pinctrl-nomadik.h new file mode 100644 index 00000000000..e690accb505 --- /dev/null +++ b/drivers/pinctrl/pinctrl-nomadik.h @@ -0,0 +1,61 @@ +#ifndef PINCTRL_PINCTRL_NOMADIK_H +#define PINCTRL_PINCTRL_NOMADIK_H + +#include + +/* Package definitions */ +#define PINCTRL_NMK_STN8815 0 +#define PINCTRL_NMK_DB8500 1 + +/** + * struct nmk_pingroup - describes a Nomadik pin group + * @name: the name of this specific pin group + * @pins: an array of discrete physical pins used in this group, taken + * from the driver-local pin enumeration space + * @num_pins: the number of pins in this group array, i.e. the number of + * elements in .pins so we can iterate over that array + * @altsetting: the altsetting to apply to all pins in this group to + * configure them to be used by a function + */ +struct nmk_pingroup { + const char *name; + const unsigned int *pins; + const unsigned npins; + u32 altsetting; +}; + +/** + * struct nmk_pinctrl_soc_data - Nomadik pin controller per-SoC configuration + * @gpio_ranges: An array of GPIO ranges for this SoC + * @gpio_num_ranges: The number of GPIO ranges for this SoC + * @pins: An array describing all pins the pin controller affects. + * All pins which are also GPIOs must be listed first within the + * array, and be numbered identically to the GPIO controller's + * numbering. + * @npins: The numbmer of entries in @pins. + * @groups: An array describing all pin groups the pin SoC supports. + * @ngroups: The number of entries in @groups. + */ +struct nmk_pinctrl_soc_data { + struct pinctrl_gpio_range *gpio_ranges; + unsigned gpio_num_ranges; + const struct pinctrl_pin_desc *pins; + unsigned npins; + const struct nmk_pingroup *groups; + unsigned ngroups; +}; + +#ifdef CONFIG_PINCTRL_DB8500 + +void nmk_pinctrl_db8500_init(const struct nmk_pinctrl_soc_data **soc); + +#else + +static inline void +nmk_pinctrl_db8500_init(const struct nmk_pinctrl_soc_data **soc) +{ +} + +#endif + +#endif /* PINCTRL_PINCTRL_NOMADIK_H */ -- cgit v1.2.3-70-g09d2 From 6f4350a6da99652423039765b9d1c57784150d39 Mon Sep 17 00:00:00 2001 From: Linus Walleij Date: Wed, 2 May 2012 21:06:13 +0200 Subject: pinctrl/nomadik: break out single GPIO debug function Break out the code displaying the status of a single pin so we can use the same code in the pinctrl debug function. Acked-by: Stephen Warren Signed-off-by: Linus Walleij --- drivers/pinctrl/pinctrl-nomadik.c | 105 +++++++++++++++++++++----------------- 1 file changed, 57 insertions(+), 48 deletions(-) diff --git a/drivers/pinctrl/pinctrl-nomadik.c b/drivers/pinctrl/pinctrl-nomadik.c index 7d5484fee5f..8ed7917d513 100644 --- a/drivers/pinctrl/pinctrl-nomadik.c +++ b/drivers/pinctrl/pinctrl-nomadik.c @@ -943,14 +943,16 @@ static int nmk_gpio_to_irq(struct gpio_chip *chip, unsigned offset) #include -static void nmk_gpio_dbg_show(struct seq_file *s, struct gpio_chip *chip) +static void nmk_gpio_dbg_show_one(struct seq_file *s, struct gpio_chip *chip, + unsigned offset, unsigned gpio) { - int mode; - unsigned i; - unsigned gpio = chip->base; - int is_out; + const char *label = gpiochip_is_requested(chip, offset); struct nmk_gpio_chip *nmk_chip = container_of(chip, struct nmk_gpio_chip, chip); + int mode; + bool is_out; + bool pull; + u32 bit = 1 << offset; const char *modes[] = { [NMK_GPIO_ALT_GPIO] = "gpio", [NMK_GPIO_ALT_A] = "altA", @@ -959,56 +961,63 @@ static void nmk_gpio_dbg_show(struct seq_file *s, struct gpio_chip *chip) }; clk_enable(nmk_chip->clk); - - for (i = 0; i < chip->ngpio; i++, gpio++) { - const char *label = gpiochip_is_requested(chip, i); - bool pull; - u32 bit = 1 << i; - - is_out = readl(nmk_chip->addr + NMK_GPIO_DIR) & bit; - pull = !(readl(nmk_chip->addr + NMK_GPIO_PDIS) & bit); - mode = nmk_gpio_get_mode(gpio); - seq_printf(s, " gpio-%-3d (%-20.20s) %s %s %s %s", - gpio, label ?: "(none)", - is_out ? "out" : "in ", - chip->get - ? (chip->get(chip, i) ? "hi" : "lo") - : "? ", - (mode < 0) ? "unknown" : modes[mode], - pull ? "pull" : "none"); - - if (label && !is_out) { - int irq = gpio_to_irq(gpio); - struct irq_desc *desc = irq_to_desc(irq); - - /* This races with request_irq(), set_irq_type(), - * and set_irq_wake() ... but those are "rare". - */ - if (irq >= 0 && desc->action) { - char *trigger; - u32 bitmask = nmk_gpio_get_bitmask(gpio); - - if (nmk_chip->edge_rising & bitmask) - trigger = "edge-rising"; - else if (nmk_chip->edge_falling & bitmask) - trigger = "edge-falling"; - else - trigger = "edge-undefined"; - - seq_printf(s, " irq-%d %s%s", - irq, trigger, - irqd_is_wakeup_set(&desc->irq_data) - ? " wakeup" : ""); - } + is_out = !!(readl(nmk_chip->addr + NMK_GPIO_DIR) & bit); + pull = !(readl(nmk_chip->addr + NMK_GPIO_PDIS) & bit); + mode = nmk_gpio_get_mode(gpio); + + seq_printf(s, " gpio-%-3d (%-20.20s) %s %s %s %s", + gpio, label ?: "(none)", + is_out ? "out" : "in ", + chip->get + ? (chip->get(chip, offset) ? "hi" : "lo") + : "? ", + (mode < 0) ? "unknown" : modes[mode], + pull ? "pull" : "none"); + + if (label && !is_out) { + int irq = gpio_to_irq(gpio); + struct irq_desc *desc = irq_to_desc(irq); + + /* This races with request_irq(), set_irq_type(), + * and set_irq_wake() ... but those are "rare". + */ + if (irq >= 0 && desc->action) { + char *trigger; + u32 bitmask = nmk_gpio_get_bitmask(gpio); + + if (nmk_chip->edge_rising & bitmask) + trigger = "edge-rising"; + else if (nmk_chip->edge_falling & bitmask) + trigger = "edge-falling"; + else + trigger = "edge-undefined"; + + seq_printf(s, " irq-%d %s%s", + irq, trigger, + irqd_is_wakeup_set(&desc->irq_data) + ? " wakeup" : ""); } + } + clk_disable(nmk_chip->clk); +} + +static void nmk_gpio_dbg_show(struct seq_file *s, struct gpio_chip *chip) +{ + unsigned i; + unsigned gpio = chip->base; + for (i = 0; i < chip->ngpio; i++, gpio++) { + nmk_gpio_dbg_show_one(s, chip, i, gpio); seq_printf(s, "\n"); } - - clk_disable(nmk_chip->clk); } #else +static inline void nmk_gpio_dbg_show_one(struct seq_file *s, + struct gpio_chip *chip, + unsigned offset, unsigned gpio) +{ +} #define nmk_gpio_dbg_show NULL #endif -- cgit v1.2.3-70-g09d2 From 24cbdd75c4a868bf1ebc986337ffcacf3f8a4109 Mon Sep 17 00:00:00 2001 From: Linus Walleij Date: Wed, 2 May 2012 21:28:00 +0200 Subject: pinctrl/nomadik: reuse GPIO debug function for pins Since all pins we can control are GPIOs, match a GPIO range to each pin in the debug function and call into the GPIO debug print function to have the per-pin information. Acked-by: Stephen Warren Signed-off-by: Linus Walleij --- drivers/pinctrl/pinctrl-nomadik.c | 28 +++++++++++++++++++++++++++- 1 file changed, 27 insertions(+), 1 deletion(-) diff --git a/drivers/pinctrl/pinctrl-nomadik.c b/drivers/pinctrl/pinctrl-nomadik.c index 8ed7917d513..7543eb243c1 100644 --- a/drivers/pinctrl/pinctrl-nomadik.c +++ b/drivers/pinctrl/pinctrl-nomadik.c @@ -1326,10 +1326,36 @@ static int nmk_get_group_pins(struct pinctrl_dev *pctldev, unsigned selector, return 0; } +static struct pinctrl_gpio_range * +nmk_match_gpio_range(struct pinctrl_dev *pctldev, unsigned offset) +{ + struct nmk_pinctrl *npct = pinctrl_dev_get_drvdata(pctldev); + int i; + + for (i = 0; i < npct->soc->gpio_num_ranges; i++) { + struct pinctrl_gpio_range *range; + + range = &npct->soc->gpio_ranges[i]; + if (offset >= range->pin_base && + offset <= (range->pin_base + range->npins - 1)) + return range; + } + return NULL; +} + static void nmk_pin_dbg_show(struct pinctrl_dev *pctldev, struct seq_file *s, unsigned offset) { - seq_printf(s, " Nomadik GPIO"); + struct pinctrl_gpio_range *range; + struct gpio_chip *chip; + + range = nmk_match_gpio_range(pctldev, offset); + if (!range || !range->gc) { + seq_printf(s, "invalid pin offset"); + return; + } + chip = range->gc; + nmk_gpio_dbg_show_one(s, chip, offset - chip->base, offset); } static struct pinctrl_ops nmk_pinctrl_ops = { -- cgit v1.2.3-70-g09d2 From dbfe8ca259e1f899ca02ea33d903fa21bbea67c5 Mon Sep 17 00:00:00 2001 From: Linus Walleij Date: Wed, 2 May 2012 22:56:47 +0200 Subject: pinctrl/nomadik: implement pin multiplexing Implements basic pinmux for the Nomadik pin controller. The plan is to split the existing singular pin config interface nmk_config_pin(), nmk_config_pins(), that will configure muxing and other settings at the same time, into two interfaces by splitting the code in pinmux and pinctrl and eventually deleting the old interface and its helper functions when all users are gone. nmk_gpio_set_mode() and nmk_gpio_get_mode() are two older interfaces for just configuring muxing/altfunctions that will also be replaced in the end. We take some extra care to handle the glitch-avoidance here, but it is simpler now since there is only one altsetting per pingroup so we know immediately if we need to avoid altfunc C glitches for a certain group. As part of the makeover implement the .request() and .free() calls on the GPIO chips and have them call back into the pinctrl layer to reserve GPIOs. ChangeLog v1->v2: - Rebased on pinctrl-mergebase-20120418 so we get the latest driver infrastructure where function count is done by a fixed value and we can drop a few range checks since this is now handled by the core. - Include a GPIO muxing hunk erroneously part of the pin config patch. Acked-by: Stephen Warren Signed-off-by: Linus Walleij --- drivers/pinctrl/Kconfig | 1 + drivers/pinctrl/pinctrl-nomadik-db8500.c | 130 ++++++++++++++++++++ drivers/pinctrl/pinctrl-nomadik.c | 204 +++++++++++++++++++++++++++++++ drivers/pinctrl/pinctrl-nomadik.h | 20 ++- 4 files changed, 353 insertions(+), 2 deletions(-) diff --git a/drivers/pinctrl/Kconfig b/drivers/pinctrl/Kconfig index 5e718201b88..bbf14dc67ad 100644 --- a/drivers/pinctrl/Kconfig +++ b/drivers/pinctrl/Kconfig @@ -39,6 +39,7 @@ config PINCTRL_MMP2 config PINCTRL_NOMADIK bool "Nomadik pin controller driver" depends on ARCH_U8500 + select PINMUX config PINCTRL_DB8500 bool "DB8500 pin controller driver" diff --git a/drivers/pinctrl/pinctrl-nomadik-db8500.c b/drivers/pinctrl/pinctrl-nomadik-db8500.c index b6871c9ba53..8b2022276f7 100644 --- a/drivers/pinctrl/pinctrl-nomadik-db8500.c +++ b/drivers/pinctrl/pinctrl-nomadik-db8500.c @@ -711,11 +711,141 @@ static const struct nmk_pingroup nmk_db8500_groups[] = { DB8500_PIN_GROUP(spi2_oc1_1, NMK_GPIO_ALT_C), }; +/* We use this macro to define the groups applicable to a function */ +#define DB8500_FUNC_GROUPS(a, b...) \ +static const char * const a##_groups[] = { b }; + +DB8500_FUNC_GROUPS(u0, "u0_a_1", "u0_c_1"); +DB8500_FUNC_GROUPS(u1, "u1rxtx_a_1", "u1ctsrts_a_1"); +/* + * UART2 can be muxed out with just RX/TX in four places, CTS+RTS is however + * only available on two pins in alternative function C + */ +DB8500_FUNC_GROUPS(u2, "u2rxtx_b_1", "u2rxtx_c_1", "u2ctsrts_c_1", + "u2rxtx_c_2", "u2rxtx_c_3"); +DB8500_FUNC_GROUPS(ipi2c, "ipi2c_a_1", "ipi2c_a_2"); +/* + * MSP0 can only be on a certain set of pins, but the TX/RX pins can be + * switched around by selecting the altfunction A or B. The SCK pin is + * only available on the altfunction B. + */ +DB8500_FUNC_GROUPS(msp0, "msp0txrx_a_1", "msp0tfstck_a_1", "msp0rfstck_a_1", + "msp0txrx_b_1", "msp0sck_b_1"); +DB8500_FUNC_GROUPS(mc0, "mc0_a_1"); +/* MSP0 can swap RX/TX like MSP0 but has no SCK pin available */ +DB8500_FUNC_GROUPS(msp1, "msp1txrx_a_1", "msp1_a_1", "msp1txrx_b_1"); +DB8500_FUNC_GROUPS(lcdb, "lcdb_a_1"); +DB8500_FUNC_GROUPS(lcd, "lcdvsi0_a_1", "lcdvsi1_a_1", "lcd_d0_d7_a_1", + "lcd_d8_d11_a_1", "lcd_d12_d23_a_1", "lcd_b_1"); +DB8500_FUNC_GROUPS(kp, "kp_a_1", "kp_b_1", "kp_c_1", "kp_oc1_1"); +DB8500_FUNC_GROUPS(mc2, "mc2_a_1", "mc2rstn_c_1"); +DB8500_FUNC_GROUPS(ssp1, "ssp1_a_1"); +DB8500_FUNC_GROUPS(ssp0, "ssp0_a_1"); +DB8500_FUNC_GROUPS(i2c0, "i2c0_a_1"); +/* The image processor has 8 GPIO pins that can be muxed out */ +DB8500_FUNC_GROUPS(ipgpio, "ipgpio0_a_1", "ipgpio1_a_1", "ipgpio7_b_1", + "ipgpio2_b_1", "ipgpio3_b_1", "ipgpio6_c_1", "ipgpio0_c_1", + "ipgpio1_c_1", "ipgpio3_c_1", "ipgpio2_c_1", "ipgpio4_c_1", + "ipgpio5_c_1", "ipgpio6_c_2", "ipgpio7_c_1", "ipgpio2_c_2", + "ipgpio3_c_2", "ipgpio4_c_2", "ipgpio5_c_2"); +/* MSP2 can not invert the RX/TX pins but has the optional SCK pin */ +DB8500_FUNC_GROUPS(msp2, "msp2sck_a_1", "msp2_a_1"); +DB8500_FUNC_GROUPS(mc4, "mc4_a_1", "mc4rstn_c_1"); +DB8500_FUNC_GROUPS(mc1, "mc1_a_1", "mc1dir_a_1"); +DB8500_FUNC_GROUPS(hsi, "hsir1_a_1", "hsit1_a_1"); +DB8500_FUNC_GROUPS(clkout, "clkout_a_1", "clkout_a_2", "clkout_c_1"); +DB8500_FUNC_GROUPS(usb, "usb_a_1"); +DB8500_FUNC_GROUPS(trig, "trig_b_1"); +DB8500_FUNC_GROUPS(i2c4, "i2c4_b_1"); +DB8500_FUNC_GROUPS(i2c1, "i2c1_b_1", "i2c1_b_2"); +DB8500_FUNC_GROUPS(i2c2, "i2c2_b_1", "i2c2_b_2"); +/* + * The modem UART can output its RX and TX pins in some different places, + * so select one of each. + */ +DB8500_FUNC_GROUPS(uartmod, "uartmodtx_b_1", "uartmodrx_b_1", "uartmodrx_b_2", + "uartmodrx_c_1", "uartmod_tx_c_1"); +DB8500_FUNC_GROUPS(stmmod, "stmmod_b_1", "stmmod_c_1"); +DB8500_FUNC_GROUPS(spi3, "spi3_b_1"); +/* Select between CS0 on alt B or PS1 on alt C */ +DB8500_FUNC_GROUPS(sm, "sm_b_1", "smcs0_b_1", "smcleale_c_1", "smps1_c_1"); +DB8500_FUNC_GROUPS(lcda, "lcdaclk_b_1", "lcda_b_1"); +DB8500_FUNC_GROUPS(ddrtrig, "ddrtrig_b_1"); +DB8500_FUNC_GROUPS(pwl, "pwl_b_1", "pwl_b_2", "pwl_b_3", "pwl_b_4"); +DB8500_FUNC_GROUPS(spi1, "spi1_b_1"); +DB8500_FUNC_GROUPS(mc3, "mc3_b_1"); +DB8500_FUNC_GROUPS(ipjtag, "ipjtag_c_1"); +DB8500_FUNC_GROUPS(slim0, "slim0_c_1"); +DB8500_FUNC_GROUPS(ms, "ms_c_1"); +DB8500_FUNC_GROUPS(iptrigout, "iptrigout_c_1"); +DB8500_FUNC_GROUPS(stmape, "stmape_c_1", "stmape_c_2"); +DB8500_FUNC_GROUPS(mc5, "mc5_c_1"); +DB8500_FUNC_GROUPS(usbsim, "usbsim_c_1", "usbsim_c_2"); +DB8500_FUNC_GROUPS(i2c3, "i2c3_c_1", "i2c3_c_2"); +DB8500_FUNC_GROUPS(spi0, "spi0_c_1"); +DB8500_FUNC_GROUPS(spi2, "spi2_oc1_1"); + +#define FUNCTION(fname) \ + { \ + .name = #fname, \ + .groups = fname##_groups, \ + .ngroups = ARRAY_SIZE(fname##_groups), \ + } + +static const struct nmk_function nmk_db8500_functions[] = { + FUNCTION(u0), + FUNCTION(u1), + FUNCTION(u2), + FUNCTION(ipi2c), + FUNCTION(msp0), + FUNCTION(mc0), + FUNCTION(msp1), + FUNCTION(lcdb), + FUNCTION(lcd), + FUNCTION(kp), + FUNCTION(mc2), + FUNCTION(ssp1), + FUNCTION(ssp0), + FUNCTION(i2c0), + FUNCTION(ipgpio), + FUNCTION(msp2), + FUNCTION(mc4), + FUNCTION(mc1), + FUNCTION(hsi), + FUNCTION(clkout), + FUNCTION(usb), + FUNCTION(trig), + FUNCTION(i2c4), + FUNCTION(i2c1), + FUNCTION(i2c2), + FUNCTION(uartmod), + FUNCTION(stmmod), + FUNCTION(spi3), + FUNCTION(sm), + FUNCTION(lcda), + FUNCTION(ddrtrig), + FUNCTION(pwl), + FUNCTION(spi1), + FUNCTION(mc3), + FUNCTION(ipjtag), + FUNCTION(slim0), + FUNCTION(ms), + FUNCTION(iptrigout), + FUNCTION(stmape), + FUNCTION(mc5), + FUNCTION(usbsim), + FUNCTION(i2c3), + FUNCTION(spi0), + FUNCTION(spi2), +}; + static const struct nmk_pinctrl_soc_data nmk_db8500_soc = { .gpio_ranges = nmk_db8500_ranges, .gpio_num_ranges = ARRAY_SIZE(nmk_db8500_ranges), .pins = nmk_db8500_pins, .npins = ARRAY_SIZE(nmk_db8500_pins), + .functions = nmk_db8500_functions, + .nfunctions = ARRAY_SIZE(nmk_db8500_functions), .groups = nmk_db8500_groups, .ngroups = ARRAY_SIZE(nmk_db8500_groups), }; diff --git a/drivers/pinctrl/pinctrl-nomadik.c b/drivers/pinctrl/pinctrl-nomadik.c index 7543eb243c1..8c632e931c2 100644 --- a/drivers/pinctrl/pinctrl-nomadik.c +++ b/drivers/pinctrl/pinctrl-nomadik.c @@ -25,6 +25,9 @@ #include #include #include +#include +/* Since we request GPIOs from ourself */ +#include #include @@ -873,6 +876,25 @@ static int nmk_gpio_init_irq(struct nmk_gpio_chip *nmk_chip) } /* I/O Functions */ + +static int nmk_gpio_request(struct gpio_chip *chip, unsigned offset) +{ + /* + * Map back to global GPIO space and request muxing, the direction + * parameter does not matter for this controller. + */ + int gpio = chip->base + offset; + + return pinctrl_request_gpio(gpio); +} + +static void nmk_gpio_free(struct gpio_chip *chip, unsigned offset) +{ + int gpio = chip->base + offset; + + pinctrl_free_gpio(gpio); +} + static int nmk_gpio_make_input(struct gpio_chip *chip, unsigned offset) { struct nmk_gpio_chip *nmk_chip = @@ -1023,6 +1045,8 @@ static inline void nmk_gpio_dbg_show_one(struct seq_file *s, /* This structure is replicated for each GPIO block allocated at probe time */ static struct gpio_chip nmk_gpio_template = { + .request = nmk_gpio_request, + .free = nmk_gpio_free, .direction_input = nmk_gpio_make_input, .get = nmk_gpio_get_input, .direction_output = nmk_gpio_make_output, @@ -1365,9 +1389,189 @@ static struct pinctrl_ops nmk_pinctrl_ops = { .pin_dbg_show = nmk_pin_dbg_show, }; +static int nmk_pmx_get_funcs_cnt(struct pinctrl_dev *pctldev) +{ + struct nmk_pinctrl *npct = pinctrl_dev_get_drvdata(pctldev); + + return npct->soc->nfunctions; +} + +static const char *nmk_pmx_get_func_name(struct pinctrl_dev *pctldev, + unsigned function) +{ + struct nmk_pinctrl *npct = pinctrl_dev_get_drvdata(pctldev); + + return npct->soc->functions[function].name; +} + +static int nmk_pmx_get_func_groups(struct pinctrl_dev *pctldev, + unsigned function, + const char * const **groups, + unsigned * const num_groups) +{ + struct nmk_pinctrl *npct = pinctrl_dev_get_drvdata(pctldev); + + *groups = npct->soc->functions[function].groups; + *num_groups = npct->soc->functions[function].ngroups; + + return 0; +} + +static int nmk_pmx_enable(struct pinctrl_dev *pctldev, unsigned function, + unsigned group) +{ + struct nmk_pinctrl *npct = pinctrl_dev_get_drvdata(pctldev); + const struct nmk_pingroup *g; + static unsigned int slpm[NUM_BANKS]; + unsigned long flags; + bool glitch; + int ret = -EINVAL; + int i; + + g = &npct->soc->groups[group]; + + if (g->altsetting < 0) + return -EINVAL; + + dev_dbg(npct->dev, "enable group %s, %u pins\n", g->name, g->npins); + + /* Handle this special glitch on altfunction C */ + glitch = (g->altsetting == NMK_GPIO_ALT_C); + + if (glitch) { + spin_lock_irqsave(&nmk_gpio_slpm_lock, flags); + + /* Initially don't put any pins to sleep when switching */ + memset(slpm, 0xff, sizeof(slpm)); + + /* + * Then mask the pins that need to be sleeping now when we're + * switching to the ALT C function. + */ + for (i = 0; i < g->npins; i++) + slpm[g->pins[i] / NMK_GPIO_PER_CHIP] &= ~BIT(g->pins[i]); + nmk_gpio_glitch_slpm_init(slpm); + } + + for (i = 0; i < g->npins; i++) { + struct pinctrl_gpio_range *range; + struct nmk_gpio_chip *nmk_chip; + struct gpio_chip *chip; + unsigned bit; + + range = nmk_match_gpio_range(pctldev, g->pins[i]); + if (!range) { + dev_err(npct->dev, + "invalid pin offset %d in group %s at index %d\n", + g->pins[i], g->name, i); + goto out_glitch; + } + if (!range->gc) { + dev_err(npct->dev, "GPIO chip missing in range for pin offset %d in group %s at index %d\n", + g->pins[i], g->name, i); + goto out_glitch; + } + chip = range->gc; + nmk_chip = container_of(chip, struct nmk_gpio_chip, chip); + dev_dbg(npct->dev, "setting pin %d to altsetting %d\n", g->pins[i], g->altsetting); + + clk_enable(nmk_chip->clk); + bit = g->pins[i] % NMK_GPIO_PER_CHIP; + /* + * If the pin is switching to altfunc, and there was an + * interrupt installed on it which has been lazy disabled, + * actually mask the interrupt to prevent spurious interrupts + * that would occur while the pin is under control of the + * peripheral. Only SKE does this. + */ + nmk_gpio_disable_lazy_irq(nmk_chip, bit); + + __nmk_gpio_set_mode_safe(nmk_chip, bit, g->altsetting, glitch); + clk_disable(nmk_chip->clk); + } + + /* When all pins are successfully reconfigured we get here */ + ret = 0; + +out_glitch: + if (glitch) { + nmk_gpio_glitch_slpm_restore(slpm); + spin_unlock_irqrestore(&nmk_gpio_slpm_lock, flags); + } + + return ret; +} + +static void nmk_pmx_disable(struct pinctrl_dev *pctldev, + unsigned function, unsigned group) +{ + struct nmk_pinctrl *npct = pinctrl_dev_get_drvdata(pctldev); + const struct nmk_pingroup *g; + + g = &npct->soc->groups[group]; + + if (g->altsetting < 0) + return; + + /* Poke out the mux, set the pin to some default state? */ + dev_dbg(npct->dev, "disable group %s, %u pins\n", g->name, g->npins); +} + +int nmk_gpio_request_enable(struct pinctrl_dev *pctldev, + struct pinctrl_gpio_range *range, + unsigned offset) +{ + struct nmk_pinctrl *npct = pinctrl_dev_get_drvdata(pctldev); + struct nmk_gpio_chip *nmk_chip; + struct gpio_chip *chip; + unsigned bit; + + if (!range) { + dev_err(npct->dev, "invalid range\n"); + return -EINVAL; + } + if (!range->gc) { + dev_err(npct->dev, "missing GPIO chip in range\n"); + return -EINVAL; + } + chip = range->gc; + nmk_chip = container_of(chip, struct nmk_gpio_chip, chip); + + dev_dbg(npct->dev, "enable pin %u as GPIO\n", offset); + + clk_enable(nmk_chip->clk); + bit = offset % NMK_GPIO_PER_CHIP; + /* There is no glitch when converting any pin to GPIO */ + __nmk_gpio_set_mode(nmk_chip, bit, NMK_GPIO_ALT_GPIO); + clk_disable(nmk_chip->clk); + + return 0; +} + +void nmk_gpio_disable_free(struct pinctrl_dev *pctldev, + struct pinctrl_gpio_range *range, + unsigned offset) +{ + struct nmk_pinctrl *npct = pinctrl_dev_get_drvdata(pctldev); + + dev_dbg(npct->dev, "disable pin %u as GPIO\n", offset); + /* Set the pin to some default state, GPIO is usually default */ +} + +static struct pinmux_ops nmk_pinmux_ops = { + .get_functions_count = nmk_pmx_get_funcs_cnt, + .get_function_name = nmk_pmx_get_func_name, + .get_function_groups = nmk_pmx_get_func_groups, + .enable = nmk_pmx_enable, + .disable = nmk_pmx_disable, + .gpio_request_enable = nmk_gpio_request_enable, + .gpio_disable_free = nmk_gpio_disable_free, +}; + static struct pinctrl_desc nmk_pinctrl_desc = { .name = "pinctrl-nomadik", .pctlops = &nmk_pinctrl_ops, + .pmxops = &nmk_pinmux_ops, .owner = THIS_MODULE, }; diff --git a/drivers/pinctrl/pinctrl-nomadik.h b/drivers/pinctrl/pinctrl-nomadik.h index e690accb505..bc91aed7185 100644 --- a/drivers/pinctrl/pinctrl-nomadik.h +++ b/drivers/pinctrl/pinctrl-nomadik.h @@ -7,6 +7,18 @@ #define PINCTRL_NMK_STN8815 0 #define PINCTRL_NMK_DB8500 1 +/** + * struct nmk_function - Nomadik pinctrl mux function + * @name: The name of the function, exported to pinctrl core. + * @groups: An array of pin groups that may select this function. + * @ngroups: The number of entries in @groups. + */ +struct nmk_function { + const char *name; + const char * const *groups; + unsigned ngroups; +}; + /** * struct nmk_pingroup - describes a Nomadik pin group * @name: the name of this specific pin group @@ -21,7 +33,7 @@ struct nmk_pingroup { const char *name; const unsigned int *pins; const unsigned npins; - u32 altsetting; + int altsetting; }; /** @@ -32,7 +44,9 @@ struct nmk_pingroup { * All pins which are also GPIOs must be listed first within the * array, and be numbered identically to the GPIO controller's * numbering. - * @npins: The numbmer of entries in @pins. + * @npins: The number of entries in @pins. + * @functions: The functions supported on this SoC. + * @nfunction: The number of entries in @functions. * @groups: An array describing all pin groups the pin SoC supports. * @ngroups: The number of entries in @groups. */ @@ -41,6 +55,8 @@ struct nmk_pinctrl_soc_data { unsigned gpio_num_ranges; const struct pinctrl_pin_desc *pins; unsigned npins; + const struct nmk_function *functions; + unsigned nfunctions; const struct nmk_pingroup *groups; unsigned ngroups; }; -- cgit v1.2.3-70-g09d2 From d41af627638a0e1e964d546e385b20650e769ce5 Mon Sep 17 00:00:00 2001 From: Linus Walleij Date: Thu, 3 May 2012 15:58:12 +0200 Subject: pinctrl/nomadik: implement pin configuration This implements the pin configuration interface for the Nomadik pin controller. As part of the exercise we add a bit in the pin_cfg_t for the Nomadik pinctrl driver that indicates if the pin should be forced into GPIO mode. This is not done to go behind the back of the GPIO subsystem, but to ensure that default modes can be set by hogs on boot and system suspend/resume states. It was used implicitly by the old code defining all config settings and modes in a single config word but we now have a split between pinmux and pinconf leading to the need to have this. We also add a bit for explicitly setting sleepmode of the pin. This was previously handled by custom calls with the _sleep() suffix, but we now have one single interface into the configuration so we replace this with a bit indicating that the pin shall be configured into sleep mode. Some of the configuration can be refactored later to use less custom fields on the pin_cfg_t but we are currently leaving the old function calls in place so we stay compatible. ChangeLog v1->v2: - Drop a hunk changing pinmuxing for GPIO and move it over to the preceding pinmux patch. Acked-by: Stephen Warren Signed-off-by: Linus Walleij --- arch/arm/plat-nomadik/include/plat/pincfg.h | 13 ++++ drivers/pinctrl/Kconfig | 1 + drivers/pinctrl/pinctrl-nomadik.c | 113 ++++++++++++++++++++++++++++ 3 files changed, 127 insertions(+) diff --git a/arch/arm/plat-nomadik/include/plat/pincfg.h b/arch/arm/plat-nomadik/include/plat/pincfg.h index c015133a7ad..9c949c7c98a 100644 --- a/arch/arm/plat-nomadik/include/plat/pincfg.h +++ b/arch/arm/plat-nomadik/include/plat/pincfg.h @@ -124,6 +124,19 @@ typedef unsigned long pin_cfg_t; #define PIN_LOWEMI_DISABLED (0 << PIN_LOWEMI_SHIFT) #define PIN_LOWEMI_ENABLED (1 << PIN_LOWEMI_SHIFT) +#define PIN_GPIOMODE_SHIFT 26 +#define PIN_GPIOMODE_MASK (0x1 << PIN_GPIOMODE_SHIFT) +#define PIN_GPIOMODE(x) (((x) & PIN_GPIOMODE_MASK) >> PIN_GPIOMODE_SHIFT) +#define PIN_GPIOMODE_DISABLED (0 << PIN_GPIOMODE_SHIFT) +#define PIN_GPIOMODE_ENABLED (1 << PIN_GPIOMODE_SHIFT) + +#define PIN_SLEEPMODE_SHIFT 27 +#define PIN_SLEEPMODE_MASK (0x1 << PIN_SLEEPMODE_SHIFT) +#define PIN_SLEEPMODE(x) (((x) & PIN_SLEEPMODE_MASK) >> PIN_SLEEPMODE_SHIFT) +#define PIN_SLEEPMODE_DISABLED (0 << PIN_SLEEPMODE_SHIFT) +#define PIN_SLEEPMODE_ENABLED (1 << PIN_SLEEPMODE_SHIFT) + + /* Shortcuts. Use these instead of separate DIR, PULL, and VAL. */ #define PIN_INPUT_PULLDOWN (PIN_DIR_INPUT | PIN_PULL_DOWN) #define PIN_INPUT_PULLUP (PIN_DIR_INPUT | PIN_PULL_UP) diff --git a/drivers/pinctrl/Kconfig b/drivers/pinctrl/Kconfig index bbf14dc67ad..81b19671d19 100644 --- a/drivers/pinctrl/Kconfig +++ b/drivers/pinctrl/Kconfig @@ -40,6 +40,7 @@ config PINCTRL_NOMADIK bool "Nomadik pin controller driver" depends on ARCH_U8500 select PINMUX + select PINCONF config PINCTRL_DB8500 bool "DB8500 pin controller driver" diff --git a/drivers/pinctrl/pinctrl-nomadik.c b/drivers/pinctrl/pinctrl-nomadik.c index 8c632e931c2..b8e01c3eaa9 100644 --- a/drivers/pinctrl/pinctrl-nomadik.c +++ b/drivers/pinctrl/pinctrl-nomadik.c @@ -26,6 +26,7 @@ #include #include #include +#include /* Since we request GPIOs from ourself */ #include @@ -1568,10 +1569,122 @@ static struct pinmux_ops nmk_pinmux_ops = { .gpio_disable_free = nmk_gpio_disable_free, }; +int nmk_pin_config_get(struct pinctrl_dev *pctldev, + unsigned pin, + unsigned long *config) +{ + /* Not implemented */ + return -EINVAL; +} + +int nmk_pin_config_set(struct pinctrl_dev *pctldev, + unsigned pin, + unsigned long config) +{ + static const char *pullnames[] = { + [NMK_GPIO_PULL_NONE] = "none", + [NMK_GPIO_PULL_UP] = "up", + [NMK_GPIO_PULL_DOWN] = "down", + [3] /* illegal */ = "??" + }; + static const char *slpmnames[] = { + [NMK_GPIO_SLPM_INPUT] = "input/wakeup", + [NMK_GPIO_SLPM_NOCHANGE] = "no-change/no-wakeup", + }; + struct nmk_pinctrl *npct = pinctrl_dev_get_drvdata(pctldev); + struct nmk_gpio_chip *nmk_chip; + struct pinctrl_gpio_range *range; + struct gpio_chip *chip; + unsigned bit; + + /* + * The pin config contains pin number and altfunction fields, here + * we just ignore that part. It's being handled by the framework and + * pinmux callback respectively. + */ + pin_cfg_t cfg = (pin_cfg_t) config; + int pull = PIN_PULL(cfg); + int slpm = PIN_SLPM(cfg); + int output = PIN_DIR(cfg); + int val = PIN_VAL(cfg); + bool lowemi = PIN_LOWEMI(cfg); + bool gpiomode = PIN_GPIOMODE(cfg); + bool sleep = PIN_SLEEPMODE(cfg); + + range = nmk_match_gpio_range(pctldev, pin); + if (!range) { + dev_err(npct->dev, "invalid pin offset %d\n", pin); + return -EINVAL; + } + if (!range->gc) { + dev_err(npct->dev, "GPIO chip missing in range for pin %d\n", + pin); + return -EINVAL; + } + chip = range->gc; + nmk_chip = container_of(chip, struct nmk_gpio_chip, chip); + + if (sleep) { + int slpm_pull = PIN_SLPM_PULL(cfg); + int slpm_output = PIN_SLPM_DIR(cfg); + int slpm_val = PIN_SLPM_VAL(cfg); + + /* All pins go into GPIO mode at sleep */ + gpiomode = true; + + /* + * The SLPM_* values are normal values + 1 to allow zero to + * mean "same as normal". + */ + if (slpm_pull) + pull = slpm_pull - 1; + if (slpm_output) + output = slpm_output - 1; + if (slpm_val) + val = slpm_val - 1; + + dev_dbg(nmk_chip->chip.dev, "pin %d: sleep pull %s, dir %s, val %s\n", + pin, + slpm_pull ? pullnames[pull] : "same", + slpm_output ? (output ? "output" : "input") : "same", + slpm_val ? (val ? "high" : "low") : "same"); + } + + dev_dbg(nmk_chip->chip.dev, "pin %d [%#lx]: pull %s, slpm %s (%s%s), lowemi %s\n", + pin, cfg, pullnames[pull], slpmnames[slpm], + output ? "output " : "input", + output ? (val ? "high" : "low") : "", + lowemi ? "on" : "off" ); + + clk_enable(nmk_chip->clk); + bit = pin % NMK_GPIO_PER_CHIP; + if (gpiomode) + /* No glitch when going to GPIO mode */ + __nmk_gpio_set_mode(nmk_chip, bit, NMK_GPIO_ALT_GPIO); + if (output) + __nmk_gpio_make_output(nmk_chip, bit, val); + else { + __nmk_gpio_make_input(nmk_chip, bit); + __nmk_gpio_set_pull(nmk_chip, bit, pull); + } + /* TODO: isn't this only applicable on output pins? */ + __nmk_gpio_set_lowemi(nmk_chip, bit, lowemi); + + __nmk_gpio_set_slpm(nmk_chip, bit, slpm); + clk_disable(nmk_chip->clk); + return 0; +} + +static struct pinconf_ops nmk_pinconf_ops = { + .pin_config_get = nmk_pin_config_get, + .pin_config_set = nmk_pin_config_set, +}; + static struct pinctrl_desc nmk_pinctrl_desc = { .name = "pinctrl-nomadik", .pctlops = &nmk_pinctrl_ops, .pmxops = &nmk_pinmux_ops, + .confops = &nmk_pinconf_ops, .owner = THIS_MODULE, }; -- cgit v1.2.3-70-g09d2 From 65697e6b1a7d73d82d114377b448e89b9788e26b Mon Sep 17 00:00:00 2001 From: Linus Walleij Date: Mon, 7 May 2012 11:17:53 +0200 Subject: pinctrl: add sleep state definition There is an IDLE definition in the pinctrl framework, but for ux500 SLEEP is more apropriate. I've added some comments on the semantics of the common states so as to avoid misunderstandings. ChangeLog v1->v2: - Fixed terminology "on"->"into". Acked-by: Stephen Warren Signed-off-by: Linus Walleij --- include/linux/pinctrl/pinctrl-state.h | 13 +++++++++++++ 1 file changed, 13 insertions(+) diff --git a/include/linux/pinctrl/pinctrl-state.h b/include/linux/pinctrl/pinctrl-state.h index 3920e28b4da..634608dc6c8 100644 --- a/include/linux/pinctrl/pinctrl-state.h +++ b/include/linux/pinctrl/pinctrl-state.h @@ -2,5 +2,18 @@ * Standard pin control state definitions */ +/** + * @PINCTRL_STATE_DEFAULT: the state the pinctrl handle shall be put + * into as default, usually this means the pins are up and ready to + * be used by the device driver. This state is commonly used by + * hogs to configure muxing and pins at boot. + * @PINCTRL_STATE_IDLE: the state the pinctrl handle shall be put into + * when the pins are idle. Could typically be set from a + * pm_runtime_suspend() operation. + * @PINCTRL_STATE_SLEEP: the state the pinctrl handle shall be put into + * when the pins are sleeping. Could typically be set from a + * common suspend() function. + */ #define PINCTRL_STATE_DEFAULT "default" #define PINCTRL_STATE_IDLE "idle" +#define PINCTRL_STATE_SLEEP "sleep" -- cgit v1.2.3-70-g09d2 From ed781d395f85192fc9debb33ae5b45e7111eacee Mon Sep 17 00:00:00 2001 From: Linus Walleij Date: Thu, 3 May 2012 00:44:52 +0200 Subject: ARM: ux500: switch over to Nomadik pinctrl driver This converts the Ux500 family to use the pinctrl driver for configuring pins. Acked-by: Stephen Warren Signed-off-by: Linus Walleij --- arch/arm/mach-ux500/board-mop500-pins.c | 819 +++++++++++++++----------------- arch/arm/mach-ux500/board-mop500.c | 21 +- arch/arm/mach-ux500/board-mop500.h | 6 +- 3 files changed, 411 insertions(+), 435 deletions(-) diff --git a/arch/arm/mach-ux500/board-mop500-pins.c b/arch/arm/mach-ux500/board-mop500-pins.c index df5b190d331..28c456c2906 100644 --- a/arch/arm/mach-ux500/board-mop500-pins.c +++ b/arch/arm/mach-ux500/board-mop500-pins.c @@ -8,6 +8,7 @@ #include #include #include +#include #include #include @@ -26,399 +27,390 @@ enum custom_pin_cfg_t { static enum custom_pin_cfg_t pinsfor; -static pin_cfg_t mop500_pins_common[] = { - /* uMSP0 */ - GPIO12_MSP0_TXD, - GPIO13_MSP0_TFS, - GPIO14_MSP0_TCK, - GPIO15_MSP0_RXD, - - /* MSP2: HDMI */ - GPIO193_MSP2_TXD | PIN_INPUT_PULLDOWN, - GPIO194_MSP2_TCK | PIN_INPUT_PULLDOWN, - GPIO195_MSP2_TFS | PIN_INPUT_PULLDOWN, - GPIO196_MSP2_RXD | PIN_OUTPUT_LOW, - - /* LCD TE0 */ - GPIO68_LCD_VSI0 | PIN_INPUT_PULLUP, - - /* Touch screen INTERFACE */ - GPIO84_GPIO | PIN_INPUT_PULLUP, /* TOUCH_INT1 */ - - /* STMPE1601/tc35893 keypad IRQ */ - GPIO218_GPIO | PIN_INPUT_PULLUP, - - /* UART */ - /* uart-0 pins gpio configuration should be - * kept intact to prevent glitch in tx line - * when tty dev is opened. Later these pins +/* These simply sets bias for pins */ +#define BIAS(a,b) static unsigned long a[] = { b } + +BIAS(pd, PIN_PULL_DOWN); +BIAS(slpm_gpio_nopull, PIN_SLPM_GPIO|PIN_SLPM_INPUT_NOPULL); +BIAS(in_nopull, PIN_INPUT_NOPULL); +BIAS(in_pu, PIN_INPUT_PULLUP); +BIAS(in_pd, PIN_INPUT_PULLDOWN); +BIAS(in_pd_slpm_in_pu, PIN_INPUT_PULLDOWN|PIN_SLPM_INPUT_PULLUP); +BIAS(in_pu_slpm_out_lo, PIN_INPUT_PULLUP|PIN_SLPM_OUTPUT_LOW); +BIAS(out_hi, PIN_OUTPUT_HIGH); +BIAS(out_lo, PIN_OUTPUT_LOW); +/* These also force them into GPIO mode */ +BIAS(gpio_in_pu, PIN_INPUT_PULLUP|PIN_GPIOMODE_ENABLED); +BIAS(gpio_in_pd, PIN_INPUT_PULLDOWN|PIN_GPIOMODE_ENABLED); +BIAS(gpio_in_pu_slpm_gpio_nopull, PIN_INPUT_PULLUP|PIN_GPIOMODE_ENABLED|PIN_SLPM_GPIO|PIN_SLPM_INPUT_NOPULL); +BIAS(gpio_in_pd_slpm_gpio_nopull, PIN_INPUT_PULLDOWN|PIN_GPIOMODE_ENABLED|PIN_SLPM_GPIO|PIN_SLPM_INPUT_NOPULL); +BIAS(gpio_out_hi, PIN_OUTPUT_HIGH|PIN_GPIOMODE_ENABLED); +BIAS(gpio_out_lo, PIN_OUTPUT_LOW|PIN_GPIOMODE_ENABLED); + +/* We use these to define hog settings that are always done on boot */ +#define DB8500_MUX_HOG(group,func) \ + PIN_MAP_MUX_GROUP_HOG_DEFAULT("pinctrl-db8500", group, func) +#define DB8500_PIN_HOG(pin,conf) \ + PIN_MAP_CONFIGS_PIN_HOG_DEFAULT("pinctrl-db8500", pin, conf) + +/* These are default states associated with device and changed runtime */ +#define DB8500_MUX(group,func,dev) \ + PIN_MAP_MUX_GROUP_DEFAULT(dev, "pinctrl-db8500", group, func) +#define DB8500_PIN(pin,conf,dev) \ + PIN_MAP_CONFIGS_PIN_DEFAULT(dev, "pinctrl-db8500", pin, conf) + +/* Pin control settings */ +static struct pinctrl_map __initdata mop500_family_pinmap[] = { + /* + * uMSP0, mux in 4 pins, regular placement of RX/TX + * explicitly set the pins to no pull + */ + DB8500_MUX_HOG("msp0txrx_a_1", "msp0"), + DB8500_MUX_HOG("msp0tfstck_a_1", "msp0"), + DB8500_PIN_HOG("GPIO12_AC4", in_nopull), /* TXD */ + DB8500_PIN_HOG("GPIO15_AC3", in_nopull), /* RXD */ + DB8500_PIN_HOG("GPIO13_AF3", in_nopull), /* TFS */ + DB8500_PIN_HOG("GPIO14_AE3", in_nopull), /* TCK */ + /* MSP2 for HDMI, pull down TXD, TCK, TFS */ + DB8500_MUX_HOG("msp2_a_1", "msp2"), + DB8500_PIN_HOG("GPIO193_AH27", in_pd), /* TXD */ + DB8500_PIN_HOG("GPIO194_AF27", in_pd), /* TCK */ + DB8500_PIN_HOG("GPIO195_AG28", in_pd), /* TFS */ + DB8500_PIN_HOG("GPIO196_AG26", out_lo), /* RXD */ + /* + * LCD, set TE0 (using LCD VSI0) and D14 (touch screen interrupt) to + * pull-up + * TODO: is this really correct? Snowball doesn't have a LCD. + */ + DB8500_MUX_HOG("lcdvsi0_a_1", "lcd"), + DB8500_PIN_HOG("GPIO68_E1", in_pu), + DB8500_PIN_HOG("GPIO84_C2", gpio_in_pu), + /* + * STMPE1601/tc35893 keypad IRQ GPIO 218 + * TODO: set for snowball and HREF really?? + */ + DB8500_PIN_HOG("GPIO218_AH11", gpio_in_pu), + /* + * UART0, we do not mux in u0 here. + * uart-0 pins gpio configuration should be kept intact to prevent + * a glitch in tx line when the tty dev is opened. Later these pins * are configured to uart mop500_pins_uart0 - * - * It will be replaced with uart configuration - * once the issue is solved. */ - GPIO0_GPIO | PIN_INPUT_PULLUP, - GPIO1_GPIO | PIN_OUTPUT_HIGH, - GPIO2_GPIO | PIN_INPUT_PULLUP, - GPIO3_GPIO | PIN_OUTPUT_HIGH, - - GPIO29_U2_RXD | PIN_INPUT_PULLUP, - GPIO30_U2_TXD | PIN_OUTPUT_HIGH, - GPIO31_U2_CTSn | PIN_INPUT_PULLUP, - GPIO32_U2_RTSn | PIN_OUTPUT_HIGH, + DB8500_PIN_HOG("GPIO0_AJ5", in_pu), /* CTS */ + DB8500_PIN_HOG("GPIO1_AJ3", out_hi), /* RTS */ + DB8500_PIN_HOG("GPIO2_AH4", in_pu), /* RXD */ + DB8500_PIN_HOG("GPIO3_AH3", out_hi), /* TXD */ + /* + * Mux in UART2 on altfunction C and set pull-ups. + * TODO: is this used on U8500 variants and Snowball really? + * The setting on GPIO31 conflicts with magnetometer use on hrefv60 + */ + DB8500_MUX_HOG("u2rxtx_c_1", "u2"), + DB8500_MUX_HOG("u2ctsrts_c_1", "u2"), + DB8500_PIN_HOG("GPIO29_W2", in_pu), /* RXD */ + DB8500_PIN_HOG("GPIO30_W3", out_hi), /* TXD */ + DB8500_PIN_HOG("GPIO31_V3", in_pu), /* CTS */ + DB8500_PIN_HOG("GPIO32_V2", out_hi), /* RTS */ + /* + * The following pin sets were known as "runtime pins" before being + * converted to the pinctrl model. Here we model them as "default" + * states. + */ + /* Mux in LCD data lines 8 thru 11 and LCDA CLK for MCDE TVOUT */ + DB8500_MUX("lcd_d8_d11_a_1", "lcd", "mcde-tvout"), + DB8500_MUX("lcdaclk_b_1", "lcda", "mcde-tvout"), + /* Mux in LCD VSI1 and pull it up for MCDE HDMI output */ + DB8500_MUX("lcdvsi1_a_1", "lcd", "av8100-hdmi"), + /* Mux in I2C blocks, put pins into GPIO in sleepmode no pull-up */ + DB8500_MUX("i2c0_a_1", "i2c0", "nmk-i2c.0"), + DB8500_PIN("GPIO147_C15", slpm_gpio_nopull, "nmk-i2c.0"), + DB8500_PIN("GPIO148_B16", slpm_gpio_nopull, "nmk-i2c.0"), + DB8500_MUX("i2c1_b_2", "i2c1", "nmk-i2c.1"), + DB8500_PIN("GPIO16_AD3", slpm_gpio_nopull, "nmk-i2c.1"), + DB8500_PIN("GPIO17_AD4", slpm_gpio_nopull, "nmk-i2c.1"), + DB8500_MUX("i2c2_b_2", "i2c2", "nmk-i2c.2"), + DB8500_PIN("GPIO10_AF5", slpm_gpio_nopull, "nmk-i2c.2"), + DB8500_PIN("GPIO11_AG4", slpm_gpio_nopull, "nmk-i2c.2"), + DB8500_MUX("i2c3_c_2", "i2c3", "nmk-i2c.3"), + DB8500_PIN("GPIO229_AG7", slpm_gpio_nopull, "nmk-i2c.3"), + DB8500_PIN("GPIO230_AF7", slpm_gpio_nopull, "nmk-i2c.3"), + /* Mux in SDI0 (here called MC0) used for removable MMC/SD/SDIO cards */ + DB8500_MUX("mc0_a_1", "mc0", "sdi0"), + DB8500_PIN("GPIO18_AC2", out_hi, "sdi0"), /* CMDDIR */ + DB8500_PIN("GPIO19_AC1", out_hi, "sdi0"), /* DAT0DIR */ + DB8500_PIN("GPIO20_AB4", out_hi, "sdi0"), /* DAT2DIR */ + DB8500_PIN("GPIO22_AA3", in_nopull, "sdi0"), /* FBCLK */ + DB8500_PIN("GPIO23_AA4", out_lo, "sdi0"), /* CLK */ + DB8500_PIN("GPIO24_AB2", in_pu, "sdi0"), /* CMD */ + DB8500_PIN("GPIO25_Y4", in_pu, "sdi0"), /* DAT0 */ + DB8500_PIN("GPIO26_Y2", in_pu, "sdi0"), /* DAT1 */ + DB8500_PIN("GPIO27_AA2", in_pu, "sdi0"), /* DAT2 */ + DB8500_PIN("GPIO28_AA1", in_pu, "sdi0"), /* DAT3 */ + /* Mux in SDI1 (here called MC1) used for SDIO for CW1200 WLAN */ + DB8500_MUX("mc1_a_1", "mc1", "sdi1"), + DB8500_PIN("GPIO208_AH16", out_lo, "sdi1"), /* CLK */ + DB8500_PIN("GPIO209_AG15", in_nopull, "sdi1"), /* FBCLK */ + DB8500_PIN("GPIO210_AJ15", in_pu, "sdi1"), /* CMD */ + DB8500_PIN("GPIO211_AG14", in_pu, "sdi1"), /* DAT0 */ + DB8500_PIN("GPIO212_AF13", in_pu, "sdi1"), /* DAT1 */ + DB8500_PIN("GPIO213_AG13", in_pu, "sdi1"), /* DAT2 */ + DB8500_PIN("GPIO214_AH15", in_pu, "sdi1"), /* DAT3 */ + /* Mux in SDI2 (here called MC2) used for for PoP eMMC */ + DB8500_MUX("mc2_a_1", "mc2", "sdi2"), + DB8500_PIN("GPIO128_A5", out_lo, "sdi2"), /* CLK */ + DB8500_PIN("GPIO129_B4", in_pu, "sdi2"), /* CMD */ + DB8500_PIN("GPIO130_C8", in_nopull, "sdi2"), /* FBCLK */ + DB8500_PIN("GPIO131_A12", in_pu, "sdi2"), /* DAT0 */ + DB8500_PIN("GPIO132_C10", in_pu, "sdi2"), /* DAT1 */ + DB8500_PIN("GPIO133_B10", in_pu, "sdi2"), /* DAT2 */ + DB8500_PIN("GPIO134_B9", in_pu, "sdi2"), /* DAT3 */ + DB8500_PIN("GPIO135_A9", in_pu, "sdi2"), /* DAT4 */ + DB8500_PIN("GPIO136_C7", in_pu, "sdi2"), /* DAT5 */ + DB8500_PIN("GPIO137_A7", in_pu, "sdi2"), /* DAT6 */ + DB8500_PIN("GPIO138_C5", in_pu, "sdi2"), /* DAT7 */ + /* Mux in SDI4 (here called MC4) used for for PCB-mounted eMMC */ + DB8500_MUX("mc4_a_1", "mc4", "sdi4"), + DB8500_PIN("GPIO197_AH24", in_pu, "sdi4"), /* DAT3 */ + DB8500_PIN("GPIO198_AG25", in_pu, "sdi4"), /* DAT2 */ + DB8500_PIN("GPIO199_AH23", in_pu, "sdi4"), /* DAT1 */ + DB8500_PIN("GPIO200_AH26", in_pu, "sdi4"), /* DAT0 */ + DB8500_PIN("GPIO201_AF24", in_pu, "sdi4"), /* CMD */ + DB8500_PIN("GPIO202_AF25", in_nopull, "sdi4"), /* FBCLK */ + DB8500_PIN("GPIO203_AE23", out_lo, "sdi4"), /* CLK */ + DB8500_PIN("GPIO204_AF23", in_pu, "sdi4"), /* DAT7 */ + DB8500_PIN("GPIO205_AG23", in_pu, "sdi4"), /* DAT6 */ + DB8500_PIN("GPIO206_AG24", in_pu, "sdi4"), /* DAT5 */ + DB8500_PIN("GPIO207_AJ23", in_pu, "sdi4"), /* DAT4 */ + /* Mux in USB pins, drive STP high */ + DB8500_MUX("usb_a_1", "usb", "musb-ux500.0"), + DB8500_PIN("GPIO257_AE29", out_hi, "musb-ux500.0"), /* STP */ + /* Mux in SPI2 pins on the "other C1" altfunction */ + DB8500_MUX("spi2_oc1_1", "spi2", "spi2"), + DB8500_PIN("GPIO216_AG12", gpio_out_hi, "spi2"), /* FRM */ + DB8500_PIN("GPIO218_AH11", in_pd, "spi2"), /* RXD */ + DB8500_PIN("GPIO215_AH13", out_lo, "spi2"), /* TXD */ + DB8500_PIN("GPIO217_AH12", out_lo, "spi2"), /* CLK */ }; -static pin_cfg_t mop500_pins_default[] = { - /* SSP0 */ - GPIO143_SSP0_CLK, - GPIO144_SSP0_FRM, - GPIO145_SSP0_RXD | PIN_PULL_DOWN, - GPIO146_SSP0_TXD, - - /* XENON Flashgun INTERFACE */ - GPIO6_IP_GPIO0 | PIN_INPUT_PULLUP,/* XENON_FLASH_ID */ - GPIO7_IP_GPIO1 | PIN_INPUT_PULLUP,/* XENON_READY */ - - GPIO217_GPIO | PIN_INPUT_PULLUP, /* TC35892 IRQ */ - - /* sdi0 (removable MMC/SD/SDIO cards) not handled by pm_runtime */ - GPIO21_MC0_DAT31DIR | PIN_OUTPUT_HIGH, - - /* UART */ - GPIO4_U1_RXD | PIN_INPUT_PULLUP, - GPIO5_U1_TXD | PIN_OUTPUT_HIGH, - GPIO6_U1_CTSn | PIN_INPUT_PULLUP, - GPIO7_U1_RTSn | PIN_OUTPUT_HIGH, +/* + * These are specifically for the MOP500 and HREFP (pre-v60) version of the + * board, which utilized a TC35892 GPIO expander instead of using a lot of + * on-chip pins as the HREFv60 and later does. + */ +static struct pinctrl_map __initdata mop500_pinmap[] = { + /* Mux in SSP0, pull down RXD pin */ + DB8500_MUX_HOG("ssp0_a_1", "ssp0"), + DB8500_PIN_HOG("GPIO145_C13", pd), + /* + * XENON Flashgun on image processor GPIO (controlled from image + * processor firmware), mux in these image processor GPIO lines 0 + * (XENON_FLASH_ID) and 1 (XENON_READY) on altfunction C and pull up + * the pins. + */ + DB8500_MUX_HOG("ipgpio0_c_1", "ipgpio"), + DB8500_MUX_HOG("ipgpio1_c_1", "ipgpio"), + DB8500_PIN_HOG("GPIO6_AF6", in_pu), + DB8500_PIN_HOG("GPIO7_AG5", in_pu), + /* TC35892 IRQ, pull up the line, let the driver mux in the pin */ + DB8500_PIN_HOG("GPIO217_AH12", gpio_in_pu), + /* Mux in UART1 and set the pull-ups */ + DB8500_MUX_HOG("u1rxtx_a_1", "u1"), + DB8500_MUX_HOG("u1ctsrts_a_1", "u1"), + DB8500_PIN_HOG("GPIO4_AH6", in_pu), /* RXD */ + DB8500_PIN_HOG("GPIO5_AG6", out_hi), /* TXD */ + DB8500_PIN_HOG("GPIO6_AF6", in_pu), /* CTS */ + DB8500_PIN_HOG("GPIO7_AG5", out_hi), /* RTS */ + /* + * Runtime stuff: make it possible to mux in the SKE keypad + * and bias the pins + */ + DB8500_MUX("kp_a_2", "kp", "ske"), + DB8500_PIN("GPIO153_B17", in_pd_slpm_in_pu, "ske"), /* I7 */ + DB8500_PIN("GPIO154_C16", in_pd_slpm_in_pu, "ske"), /* I6 */ + DB8500_PIN("GPIO155_C19", in_pd_slpm_in_pu, "ske"), /* I5 */ + DB8500_PIN("GPIO156_C17", in_pd_slpm_in_pu, "ske"), /* I4 */ + DB8500_PIN("GPIO161_D21", in_pd_slpm_in_pu, "ske"), /* I3 */ + DB8500_PIN("GPIO162_D20", in_pd_slpm_in_pu, "ske"), /* I2 */ + DB8500_PIN("GPIO163_C20", in_pd_slpm_in_pu, "ske"), /* I1 */ + DB8500_PIN("GPIO164_B21", in_pd_slpm_in_pu, "ske"), /* I0 */ + DB8500_PIN("GPIO157_A18", in_pu_slpm_out_lo, "ske"), /* O7 */ + DB8500_PIN("GPIO158_C18", in_pu_slpm_out_lo, "ske"), /* O6 */ + DB8500_PIN("GPIO159_B19", in_pu_slpm_out_lo, "ske"), /* O5 */ + DB8500_PIN("GPIO160_B20", in_pu_slpm_out_lo, "ske"), /* O4 */ + DB8500_PIN("GPIO165_C21", in_pu_slpm_out_lo, "ske"), /* O3 */ + DB8500_PIN("GPIO166_A22", in_pu_slpm_out_lo, "ske"), /* O2 */ + DB8500_PIN("GPIO167_B24", in_pu_slpm_out_lo, "ske"), /* O1 */ + DB8500_PIN("GPIO168_C22", in_pu_slpm_out_lo, "ske"), /* O0 */ + /* Mux in and drive the SDI0 DAT31DIR line high at runtime */ + DB8500_MUX("mc0dat31dir_a_1", "mc0", "sdi0"), + DB8500_PIN("GPIO21_AB3", out_hi, "sdi0"), }; -static pin_cfg_t hrefv60_pins[] = { - /* WLAN */ - GPIO85_GPIO | PIN_OUTPUT_LOW,/* WLAN_ENA */ - - /* XENON Flashgun INTERFACE */ - GPIO6_IP_GPIO0 | PIN_INPUT_PULLUP,/* XENON_FLASH_ID */ - GPIO7_IP_GPIO1 | PIN_INPUT_PULLUP,/* XENON_READY */ - - /* Assistant LED INTERFACE */ - GPIO21_GPIO | PIN_OUTPUT_LOW, /* XENON_EN1 */ - GPIO64_IP_GPIO4 | PIN_OUTPUT_LOW, /* XENON_EN2 */ - - /* Magnetometer */ - GPIO31_GPIO | PIN_INPUT_PULLUP, /* magnetometer_INT */ - GPIO32_GPIO | PIN_INPUT_PULLDOWN, /* Magnetometer DRDY */ - - /* Display Interface */ - GPIO65_GPIO | PIN_OUTPUT_HIGH, /* DISP1 NO RST */ - GPIO66_GPIO | PIN_OUTPUT_LOW, /* DISP2 RST */ - - /* Touch screen INTERFACE */ - GPIO143_GPIO | PIN_OUTPUT_LOW,/*TOUCH_RST1 */ - - /* Touch screen INTERFACE 2 */ - GPIO67_GPIO | PIN_INPUT_PULLUP, /* TOUCH_INT2 */ - GPIO146_GPIO | PIN_OUTPUT_LOW,/*TOUCH_RST2 */ - - /* ETM_PTM_TRACE INTERFACE */ - GPIO70_GPIO | PIN_OUTPUT_LOW,/* ETM_PTM_DATA23 */ - GPIO71_GPIO | PIN_OUTPUT_LOW,/* ETM_PTM_DATA22 */ - GPIO72_GPIO | PIN_OUTPUT_LOW,/* ETM_PTM_DATA21 */ - GPIO73_GPIO | PIN_OUTPUT_LOW,/* ETM_PTM_DATA20 */ - GPIO74_GPIO | PIN_OUTPUT_LOW,/* ETM_PTM_DATA19 */ - - /* NAHJ INTERFACE */ - GPIO76_GPIO | PIN_OUTPUT_LOW,/* NAHJ_CTRL */ - GPIO216_GPIO | PIN_OUTPUT_HIGH,/* NAHJ_CTRL_INV */ - - /* NFC INTERFACE */ - GPIO77_GPIO | PIN_OUTPUT_LOW, /* NFC_ENA */ - GPIO144_GPIO | PIN_INPUT_PULLDOWN, /* NFC_IRQ */ - GPIO142_GPIO | PIN_OUTPUT_LOW, /* NFC_RESET */ - - /* Keyboard MATRIX INTERFACE */ - GPIO90_MC5_CMD | PIN_OUTPUT_LOW, /* KP_O_1 */ - GPIO87_MC5_DAT1 | PIN_OUTPUT_LOW, /* KP_O_2 */ - GPIO86_MC5_DAT0 | PIN_OUTPUT_LOW, /* KP_O_3 */ - GPIO96_KP_O6 | PIN_OUTPUT_LOW, /* KP_O_6 */ - GPIO94_KP_O7 | PIN_OUTPUT_LOW, /* KP_O_7 */ - GPIO93_MC5_DAT4 | PIN_INPUT_PULLUP, /* KP_I_0 */ - GPIO89_MC5_DAT3 | PIN_INPUT_PULLUP, /* KP_I_2 */ - GPIO88_MC5_DAT2 | PIN_INPUT_PULLUP, /* KP_I_3 */ - GPIO91_GPIO | PIN_INPUT_PULLUP, /* FORCE_SENSING_INT */ - GPIO92_GPIO | PIN_OUTPUT_LOW, /* FORCE_SENSING_RST */ - GPIO97_GPIO | PIN_OUTPUT_LOW, /* FORCE_SENSING_WU */ - - /* DiPro Sensor Interface */ - GPIO139_GPIO | PIN_INPUT_PULLUP, /* DIPRO_INT */ - - /* Audio Amplifier Interface */ - GPIO149_GPIO | PIN_OUTPUT_HIGH, /* VAUDIO_HF_EN, enable MAX8968 */ - - /* GBF INTERFACE */ - GPIO171_GPIO | PIN_OUTPUT_LOW, /* GBF_ENA_RESET */ - - /* MSP : HDTV INTERFACE */ - GPIO192_GPIO | PIN_INPUT_PULLDOWN, - - /* ACCELEROMETER_INTERFACE */ - GPIO82_GPIO | PIN_INPUT_PULLUP, /* ACC_INT1 */ - GPIO83_GPIO | PIN_INPUT_PULLUP, /* ACC_INT2 */ - - /* SD card detect */ - GPIO95_GPIO | PIN_INPUT_PULLUP, +/* + * The HREFv60 series of platforms is using available pins on the DB8500 + * insteaf of the Toshiba I2C GPIO expander, reusing some pins like the SSP0 + * and SSP1 ports (previously connected to the AB8500) as generic GPIO lines. + */ +static struct pinctrl_map __initdata hrefv60_pinmap[] = { + /* Drive WLAN_ENA low */ + DB8500_PIN_HOG("GPIO85_D5", gpio_out_lo), /* WLAN_ENA */ + /* + * XENON Flashgun on image processor GPIO (controlled from image + * processor firmware), mux in these image processor GPIO lines 0 + * (XENON_FLASH_ID), 1 (XENON_READY) and there is an assistant + * LED on IP GPIO 4 (XENON_EN2) on altfunction C, that need bias + * from GPIO21 so pull up 0, 1 and drive 4 and GPIO21 low as output. + */ + DB8500_MUX_HOG("ipgpio0_c_1", "ipgpio"), + DB8500_MUX_HOG("ipgpio1_c_1", "ipgpio"), + DB8500_MUX_HOG("ipgpio4_c_1", "ipgpio"), + DB8500_PIN_HOG("GPIO6_AF6", in_pu), /* XENON_FLASH_ID */ + DB8500_PIN_HOG("GPIO7_AG5", in_pu), /* XENON_READY */ + DB8500_PIN_HOG("GPIO21_AB3", gpio_out_lo), /* XENON_EN1 */ + DB8500_PIN_HOG("GPIO64_F3", out_lo), /* XENON_EN2 */ + /* Magnetometer uses GPIO 31 and 32, pull these up/down respectively */ + DB8500_PIN_HOG("GPIO31_V3", gpio_in_pu), /* EN1 */ + DB8500_PIN_HOG("GPIO32_V2", gpio_in_pd), /* DRDY */ + /* + * Display Interface 1 uses GPIO 65 for RST (reset). + * Display Interface 2 uses GPIO 66 for RST (reset). + * Drive DISP1 reset high (not reset), driver DISP2 reset low (reset) + */ + DB8500_PIN_HOG("GPIO65_F1", gpio_out_hi), /* DISP1 NO RST */ + DB8500_PIN_HOG("GPIO66_G3", gpio_out_lo), /* DISP2 RST */ + /* + * Touch screen uses GPIO 143 for RST1, GPIO 146 for RST2 and + * GPIO 67 for interrupts. Pull-up the IRQ line and drive both + * reset signals low. + */ + DB8500_PIN_HOG("GPIO143_D12", gpio_out_lo), /* TOUCH_RST1 */ + DB8500_PIN_HOG("GPIO67_G2", gpio_in_pu), /* TOUCH_INT2 */ + DB8500_PIN_HOG("GPIO146_D13", gpio_out_lo), /* TOUCH_RST2 */ + /* + * Drive D19-D23 for the ETM PTM trace interface low, + * (presumably pins are unconnected therefore grounded here, + * the "other alt C1" setting enables these pins) + */ + DB8500_PIN_HOG("GPIO70_G5", gpio_out_lo), + DB8500_PIN_HOG("GPIO71_G4", gpio_out_lo), + DB8500_PIN_HOG("GPIO72_H4", gpio_out_lo), + DB8500_PIN_HOG("GPIO73_H3", gpio_out_lo), + DB8500_PIN_HOG("GPIO74_J3", gpio_out_lo), + /* NAHJ CTRL on GPIO 76 to low, CTRL_INV on GPIO216 to high */ + DB8500_PIN_HOG("GPIO76_J2", gpio_out_lo), /* CTRL */ + DB8500_PIN_HOG("GPIO216_AG12", gpio_out_hi), /* CTRL_INV */ + /* NFC ENA and RESET to low, pulldown IRQ line */ + DB8500_PIN_HOG("GPIO77_H1", gpio_out_lo), /* NFC_ENA */ + DB8500_PIN_HOG("GPIO144_B13", gpio_in_pd), /* NFC_IRQ */ + DB8500_PIN_HOG("GPIO142_C11", gpio_out_lo), /* NFC_RESET */ + /* + * SKE keyboard partly on alt A and partly on "Other alt C1" + * Driver KP_O1,2,3,6,7 low and pull up KP_I 0,2,3 for three + * rows of 6 keys, then pull up force sensing interrup and + * drive reset and force sensing WU low. + */ + DB8500_MUX_HOG("kp_a_1", "kp"), + DB8500_MUX_HOG("kp_oc1_1", "kp"), + DB8500_PIN_HOG("GPIO90_A3", out_lo), /* KP_O1 */ + DB8500_PIN_HOG("GPIO87_B3", out_lo), /* KP_O2 */ + DB8500_PIN_HOG("GPIO86_C6", out_lo), /* KP_O3 */ + DB8500_PIN_HOG("GPIO96_D8", out_lo), /* KP_O6 */ + DB8500_PIN_HOG("GPIO94_D7", out_lo), /* KP_O7 */ + DB8500_PIN_HOG("GPIO93_B7", in_pu), /* KP_I0 */ + DB8500_PIN_HOG("GPIO89_E6", in_pu), /* KP_I2 */ + DB8500_PIN_HOG("GPIO88_C4", in_pu), /* KP_I3 */ + DB8500_PIN_HOG("GPIO91_B6", gpio_in_pu), /* FORCE_SENSING_INT */ + DB8500_PIN_HOG("GPIO92_D6", gpio_out_lo), /* FORCE_SENSING_RST */ + DB8500_PIN_HOG("GPIO97_D9", gpio_out_lo), /* FORCE_SENSING_WU */ + /* DiPro Sensor interrupt */ + DB8500_PIN_HOG("GPIO139_C9", gpio_in_pu), /* DIPRO_INT */ + /* Audio Amplifier HF enable */ + DB8500_PIN_HOG("GPIO149_B14", gpio_out_hi), /* VAUDIO_HF_EN, enable MAX8968 */ + /* GBF interface, pull low to reset state */ + DB8500_PIN_HOG("GPIO171_D23", gpio_out_lo), /* GBF_ENA_RESET */ + /* MSP : HDTV INTERFACE GPIO line */ + DB8500_PIN_HOG("GPIO192_AJ27", gpio_in_pd), + /* Accelerometer interrupt lines */ + DB8500_PIN_HOG("GPIO82_C1", gpio_in_pu), /* ACC_INT1 */ + DB8500_PIN_HOG("GPIO83_D3", gpio_in_pu), /* ACC_INT2 */ + /* SD card detect GPIO pin */ + DB8500_PIN_HOG("GPIO95_E8", gpio_in_pu), + /* + * Runtime stuff + * Pull up/down of some sensor GPIO pins, for proximity, HAL sensor + * etc. + */ + DB8500_PIN("GPIO217_AH12", gpio_in_pu_slpm_gpio_nopull, "gpio-keys.0"), + DB8500_PIN("GPIO145_C13", gpio_in_pd_slpm_gpio_nopull, "gpio-keys.0"), + DB8500_PIN("GPIO139_C9", gpio_in_pu_slpm_gpio_nopull, "gpio-keys.0"), + /* + * Make it possible to mux in the SKE keypad and bias the pins + * FIXME: what's the point with this on HREFv60? KP/SKE is already + * muxed in at another place! Enabling this will bork. + */ + DB8500_MUX("kp_a_2", "kp", "ske"), + DB8500_PIN("GPIO153_B17", in_pd_slpm_in_pu, "ske"), /* I7 */ + DB8500_PIN("GPIO154_C16", in_pd_slpm_in_pu, "ske"), /* I6 */ + DB8500_PIN("GPIO155_C19", in_pd_slpm_in_pu, "ske"), /* I5 */ + DB8500_PIN("GPIO156_C17", in_pd_slpm_in_pu, "ske"), /* I4 */ + DB8500_PIN("GPIO161_D21", in_pd_slpm_in_pu, "ske"), /* I3 */ + DB8500_PIN("GPIO162_D20", in_pd_slpm_in_pu, "ske"), /* I2 */ + DB8500_PIN("GPIO163_C20", in_pd_slpm_in_pu, "ske"), /* I1 */ + DB8500_PIN("GPIO164_B21", in_pd_slpm_in_pu, "ske"), /* I0 */ + DB8500_PIN("GPIO157_A18", in_pu_slpm_out_lo, "ske"), /* O7 */ + DB8500_PIN("GPIO158_C18", in_pu_slpm_out_lo, "ske"), /* O6 */ + DB8500_PIN("GPIO159_B19", in_pu_slpm_out_lo, "ske"), /* O5 */ + DB8500_PIN("GPIO160_B20", in_pu_slpm_out_lo, "ske"), /* O4 */ + DB8500_PIN("GPIO165_C21", in_pu_slpm_out_lo, "ske"), /* O3 */ + DB8500_PIN("GPIO166_A22", in_pu_slpm_out_lo, "ske"), /* O2 */ + DB8500_PIN("GPIO167_B24", in_pu_slpm_out_lo, "ske"), /* O1 */ + DB8500_PIN("GPIO168_C22", in_pu_slpm_out_lo, "ske"), /* O0 */ }; -static pin_cfg_t u9500_pins[] = { - GPIO4_U1_RXD | PIN_INPUT_PULLUP, - GPIO5_U1_TXD | PIN_OUTPUT_HIGH, - GPIO144_GPIO | PIN_INPUT_PULLUP,/* WLAN_IRQ */ - +static struct pinctrl_map __initdata u9500_pinmap[] = { + /* Mux in UART1 (just RX/TX) and set the pull-ups */ + DB8500_MUX_HOG("u1rxtx_a_1", "u1"), + DB8500_PIN_HOG("GPIO4_AH6", in_pu), + DB8500_PIN_HOG("GPIO5_AG6", out_hi), + /* WLAN_IRQ line */ + DB8500_PIN_HOG("GPIO144_B13", gpio_in_pu), /* HSI */ - GPIO219_HSIR_FLA0 | PIN_INPUT_PULLDOWN, - GPIO220_HSIR_DAT0 | PIN_INPUT_PULLDOWN, - GPIO221_HSIR_RDY0 | PIN_OUTPUT_LOW, - GPIO222_HSIT_FLA0 | PIN_OUTPUT_LOW, - GPIO223_HSIT_DAT0 | PIN_OUTPUT_LOW, - GPIO224_HSIT_RDY0 | PIN_INPUT_PULLDOWN, - GPIO225_HSIT_CAWAKE0 | PIN_INPUT_PULLDOWN, /* CA_WAKE0 */ - GPIO226_GPIO | PIN_OUTPUT_HIGH, /* AC_WAKE0 */ + DB8500_MUX_HOG("hsir_a_1", "hsi"), + DB8500_MUX_HOG("hsit_a_1", "hsi"), + DB8500_PIN_HOG("GPIO219_AG10", in_pd), /* RX FLA0 */ + DB8500_PIN_HOG("GPIO220_AH10", in_pd), /* RX DAT0 */ + DB8500_PIN_HOG("GPIO221_AJ11", out_lo), /* RX RDY0 */ + DB8500_PIN_HOG("GPIO222_AJ9", out_lo), /* TX FLA0 */ + DB8500_PIN_HOG("GPIO223_AH9", out_lo), /* TX DAT0 */ + DB8500_PIN_HOG("GPIO224_AG9", in_pd), /* TX RDY0 */ + DB8500_PIN_HOG("GPIO225_AG8", in_pd), /* CAWAKE0 */ + DB8500_PIN_HOG("GPIO226_AF8", out_hi), /* ACWAKE0 */ }; -static pin_cfg_t u8500_pins[] = { - GPIO226_GPIO | PIN_OUTPUT_LOW, /* WLAN_PMU_EN */ - GPIO4_GPIO | PIN_INPUT_PULLUP,/* WLAN_IRQ */ +static struct pinctrl_map __initdata u8500_pinmap[] = { + DB8500_PIN_HOG("GPIO226_AF8", gpio_out_lo), /* WLAN_PMU_EN */ + DB8500_PIN_HOG("GPIO4_AH6", gpio_in_pu), /* WLAN_IRQ */ }; -static pin_cfg_t snowball_pins[] = { - /* SSP0, to AB8500 */ - GPIO143_SSP0_CLK, - GPIO144_SSP0_FRM, - GPIO145_SSP0_RXD | PIN_PULL_DOWN, - GPIO146_SSP0_TXD, - - /* MMC0: MicroSD card */ - GPIO21_MC0_DAT31DIR | PIN_OUTPUT_HIGH, - - /* MMC2: LAN */ - GPIO86_SM_ADQ0, - GPIO87_SM_ADQ1, - GPIO88_SM_ADQ2, - GPIO89_SM_ADQ3, - GPIO90_SM_ADQ4, - GPIO91_SM_ADQ5, - GPIO92_SM_ADQ6, - GPIO93_SM_ADQ7, - - GPIO94_SM_ADVn, - GPIO95_SM_CS0n, - GPIO96_SM_OEn, - GPIO97_SM_WEn, - - GPIO128_SM_CKO, - GPIO130_SM_FBCLK, - GPIO131_SM_ADQ8, - GPIO132_SM_ADQ9, - GPIO133_SM_ADQ10, - GPIO134_SM_ADQ11, - GPIO135_SM_ADQ12, - GPIO136_SM_ADQ13, - GPIO137_SM_ADQ14, - GPIO138_SM_ADQ15, - - /* RSTn_LAN */ - GPIO141_GPIO | PIN_OUTPUT_HIGH, - +static struct pinctrl_map __initdata snowball_pinmap[] = { + /* Mux in SSP0 connected to AB8500, pull down RXD pin */ + DB8500_MUX_HOG("ssp0_a_1", "ssp0"), + DB8500_PIN_HOG("GPIO145_C13", pd), + /* Always drive the MC0 DAT31DIR line high on these boards */ + DB8500_PIN_HOG("GPIO21_AB3", out_hi), + /* Mux in "SM" which is used for the SMSC911x Ethernet adapter */ + DB8500_MUX_HOG("sm_b_1", "sm"), + /* Drive RSTn_LAN high */ + DB8500_PIN_HOG("GPIO141_C12", gpio_out_hi), /* Accelerometer/Magnetometer */ - GPIO163_GPIO | PIN_INPUT_PULLUP, /* ACCEL_IRQ1 */ - GPIO164_GPIO | PIN_INPUT_PULLUP, /* ACCEL_IRQ2 */ - GPIO165_GPIO | PIN_INPUT_PULLUP, /* MAG_DRDY */ - + DB8500_PIN_HOG("GPIO163_C20", gpio_in_pu), /* ACCEL_IRQ1 */ + DB8500_PIN_HOG("GPIO164_B21", gpio_in_pu), /* ACCEL_IRQ2 */ + DB8500_PIN_HOG("GPIO165_C21", gpio_in_pu), /* MAG_DRDY */ /* WLAN/GBF */ - GPIO161_GPIO | PIN_OUTPUT_LOW, /* WLAN_PMU_EN */ - GPIO171_GPIO | PIN_OUTPUT_HIGH,/* GBF_ENA */ - GPIO215_GPIO | PIN_OUTPUT_LOW,/* WLAN_ENA */ - GPIO216_GPIO | PIN_INPUT_PULLUP,/* WLAN_IRQ */ -}; - -/* - * I2C - */ - -static UX500_PINS(mop500_pins_i2c0, - GPIO147_I2C0_SCL | - PIN_SLPM_GPIO | PIN_SLPM_INPUT_NOPULL, - GPIO148_I2C0_SDA | - PIN_SLPM_GPIO | PIN_SLPM_INPUT_NOPULL, -); - -static UX500_PINS(mop500_pins_i2c1, - GPIO16_I2C1_SCL | - PIN_SLPM_GPIO | PIN_SLPM_INPUT_NOPULL, - GPIO17_I2C1_SDA | - PIN_SLPM_GPIO | PIN_SLPM_INPUT_NOPULL, -); - -static UX500_PINS(mop500_pins_i2c2, - GPIO10_I2C2_SDA | - PIN_SLPM_GPIO | PIN_SLPM_INPUT_NOPULL, - GPIO11_I2C2_SCL | - PIN_SLPM_GPIO | PIN_SLPM_INPUT_NOPULL, -); - -static UX500_PINS(mop500_pins_i2c3, - GPIO229_I2C3_SDA | - PIN_SLPM_GPIO | PIN_SLPM_INPUT_NOPULL, - GPIO230_I2C3_SCL | - PIN_SLPM_GPIO | PIN_SLPM_INPUT_NOPULL, -); - -static UX500_PINS(mop500_pins_mcde_tvout, - GPIO78_LCD_D8, - GPIO79_LCD_D9, - GPIO80_LCD_D10, - GPIO81_LCD_D11, - GPIO150_LCDA_CLK, -); - -static UX500_PINS(mop500_pins_mcde_hdmi, - GPIO69_LCD_VSI1 | PIN_INPUT_PULLUP, -); - -static UX500_PINS(mop500_pins_ske, - GPIO153_KP_I7 | PIN_INPUT_PULLDOWN | PIN_SLPM_INPUT_PULLUP, - GPIO154_KP_I6 | PIN_INPUT_PULLDOWN | PIN_SLPM_INPUT_PULLUP, - GPIO155_KP_I5 | PIN_INPUT_PULLDOWN | PIN_SLPM_INPUT_PULLUP, - GPIO156_KP_I4 | PIN_INPUT_PULLDOWN | PIN_SLPM_INPUT_PULLUP, - GPIO161_KP_I3 | PIN_INPUT_PULLDOWN | PIN_SLPM_INPUT_PULLUP, - GPIO162_KP_I2 | PIN_INPUT_PULLDOWN | PIN_SLPM_INPUT_PULLUP, - GPIO163_KP_I1 | PIN_INPUT_PULLDOWN | PIN_SLPM_INPUT_PULLUP, - GPIO164_KP_I0 | PIN_INPUT_PULLDOWN | PIN_SLPM_INPUT_PULLUP, - GPIO157_KP_O7 | PIN_INPUT_PULLUP | PIN_SLPM_OUTPUT_LOW, - GPIO158_KP_O6 | PIN_INPUT_PULLUP | PIN_SLPM_OUTPUT_LOW, - GPIO159_KP_O5 | PIN_INPUT_PULLUP | PIN_SLPM_OUTPUT_LOW, - GPIO160_KP_O4 | PIN_INPUT_PULLUP | PIN_SLPM_OUTPUT_LOW, - GPIO165_KP_O3 | PIN_INPUT_PULLUP | PIN_SLPM_OUTPUT_LOW, - GPIO166_KP_O2 | PIN_INPUT_PULLUP | PIN_SLPM_OUTPUT_LOW, - GPIO167_KP_O1 | PIN_INPUT_PULLUP | PIN_SLPM_OUTPUT_LOW, - GPIO168_KP_O0 | PIN_INPUT_PULLUP | PIN_SLPM_OUTPUT_LOW, -); - -/* sdi0 (removable MMC/SD/SDIO cards) */ -static UX500_PINS(mop500_pins_sdi0, - GPIO18_MC0_CMDDIR | PIN_OUTPUT_HIGH, - GPIO19_MC0_DAT0DIR | PIN_OUTPUT_HIGH, - GPIO20_MC0_DAT2DIR | PIN_OUTPUT_HIGH, - - GPIO22_MC0_FBCLK | PIN_INPUT_NOPULL, - GPIO23_MC0_CLK | PIN_OUTPUT_LOW, - GPIO24_MC0_CMD | PIN_INPUT_PULLUP, - GPIO25_MC0_DAT0 | PIN_INPUT_PULLUP, - GPIO26_MC0_DAT1 | PIN_INPUT_PULLUP, - GPIO27_MC0_DAT2 | PIN_INPUT_PULLUP, - GPIO28_MC0_DAT3 | PIN_INPUT_PULLUP, -); - -/* sdi1 (WLAN CW1200) */ -static UX500_PINS(mop500_pins_sdi1, - GPIO208_MC1_CLK | PIN_OUTPUT_LOW, - GPIO209_MC1_FBCLK | PIN_INPUT_NOPULL, - GPIO210_MC1_CMD | PIN_INPUT_PULLUP, - GPIO211_MC1_DAT0 | PIN_INPUT_PULLUP, - GPIO212_MC1_DAT1 | PIN_INPUT_PULLUP, - GPIO213_MC1_DAT2 | PIN_INPUT_PULLUP, - GPIO214_MC1_DAT3 | PIN_INPUT_PULLUP, -); - -/* sdi2 (POP eMMC) */ -static UX500_PINS(mop500_pins_sdi2, - GPIO128_MC2_CLK | PIN_OUTPUT_LOW, - GPIO129_MC2_CMD | PIN_INPUT_PULLUP, - GPIO130_MC2_FBCLK | PIN_INPUT_NOPULL, - GPIO131_MC2_DAT0 | PIN_INPUT_PULLUP, - GPIO132_MC2_DAT1 | PIN_INPUT_PULLUP, - GPIO133_MC2_DAT2 | PIN_INPUT_PULLUP, - GPIO134_MC2_DAT3 | PIN_INPUT_PULLUP, - GPIO135_MC2_DAT4 | PIN_INPUT_PULLUP, - GPIO136_MC2_DAT5 | PIN_INPUT_PULLUP, - GPIO137_MC2_DAT6 | PIN_INPUT_PULLUP, - GPIO138_MC2_DAT7 | PIN_INPUT_PULLUP, -); - -/* sdi4 (PCB eMMC) */ -static UX500_PINS(mop500_pins_sdi4, - GPIO197_MC4_DAT3 | PIN_INPUT_PULLUP, - GPIO198_MC4_DAT2 | PIN_INPUT_PULLUP, - GPIO199_MC4_DAT1 | PIN_INPUT_PULLUP, - GPIO200_MC4_DAT0 | PIN_INPUT_PULLUP, - GPIO201_MC4_CMD | PIN_INPUT_PULLUP, - GPIO202_MC4_FBCLK | PIN_INPUT_NOPULL, - GPIO203_MC4_CLK | PIN_OUTPUT_LOW, - GPIO204_MC4_DAT7 | PIN_INPUT_PULLUP, - GPIO205_MC4_DAT6 | PIN_INPUT_PULLUP, - GPIO206_MC4_DAT5 | PIN_INPUT_PULLUP, - GPIO207_MC4_DAT4 | PIN_INPUT_PULLUP, -); - -/* USB */ -static UX500_PINS(mop500_pins_usb, - GPIO256_USB_NXT, - GPIO257_USB_STP | PIN_OUTPUT_HIGH, - GPIO258_USB_XCLK, - GPIO259_USB_DIR, - GPIO260_USB_DAT7, - GPIO261_USB_DAT6, - GPIO262_USB_DAT5, - GPIO263_USB_DAT4, - GPIO264_USB_DAT3, - GPIO265_USB_DAT2, - GPIO266_USB_DAT1, - GPIO267_USB_DAT0, -); - -/* SPI2 */ -static UX500_PINS(mop500_pins_spi2, - GPIO216_GPIO | PIN_OUTPUT_HIGH, - GPIO218_SPI2_RXD | PIN_INPUT_PULLDOWN, - GPIO215_SPI2_TXD | PIN_OUTPUT_LOW, - GPIO217_SPI2_CLK | PIN_OUTPUT_LOW, -); - -static UX500_PINS(mop500_pins_sensors1p_v60, - GPIO217_GPIO| PIN_INPUT_PULLUP | - PIN_SLPM_GPIO | PIN_SLPM_INPUT_NOPULL, - GPIO145_GPIO | PIN_INPUT_PULLDOWN | - PIN_SLPM_GPIO | PIN_SLPM_INPUT_NOPULL, - GPIO139_GPIO | PIN_INPUT_PULLUP | - PIN_SLPM_GPIO | PIN_SLPM_INPUT_NOPULL, -); - -static UX500_PINS(mop500_pins_sensors1p, - PIN_CFG_INPUT(GPIO_PROX_SENSOR, GPIO, NOPULL), - PIN_CFG_INPUT(GPIO_HAL_SENSOR, GPIO, NOPULL), -); - -static struct ux500_pin_lookup mop500_runtime_pins[] = { - PIN_LOOKUP("mcde-tvout", &mop500_pins_mcde_tvout), - PIN_LOOKUP("av8100-hdmi", &mop500_pins_mcde_hdmi), - PIN_LOOKUP("nmk-i2c.0", &mop500_pins_i2c0), - PIN_LOOKUP("nmk-i2c.1", &mop500_pins_i2c1), - PIN_LOOKUP("nmk-i2c.2", &mop500_pins_i2c2), - PIN_LOOKUP("nmk-i2c.3", &mop500_pins_i2c3), - PIN_LOOKUP("sdi0", &mop500_pins_sdi0), - PIN_LOOKUP("sdi1", &mop500_pins_sdi1), - PIN_LOOKUP("sdi2", &mop500_pins_sdi2), - PIN_LOOKUP("sdi4", &mop500_pins_sdi4), - PIN_LOOKUP("musb-ux500.0", &mop500_pins_usb), - PIN_LOOKUP("spi2", &mop500_pins_spi2), -}; - -static struct ux500_pin_lookup mop500_runtime_pins_v60[] = { - PIN_LOOKUP("ske", &mop500_pins_ske), - PIN_LOOKUP("gpio-keys.0", &mop500_pins_sensors1p_v60), -}; - -static struct ux500_pin_lookup mop500_runtime_pins_pre_v60[] = { - PIN_LOOKUP("ske", &mop500_pins_ske), - PIN_LOOKUP("gpio-keys.0", &mop500_pins_sensors1p), + DB8500_PIN_HOG("GPIO161_D21", gpio_out_lo), /* WLAN_PMU_EN */ + DB8500_PIN_HOG("GPIO171_D23", gpio_out_hi), /* GBF_ENA */ + DB8500_PIN_HOG("GPIO215_AH13", gpio_out_lo), /* WLAN_ENA */ + DB8500_PIN_HOG("GPIO216_AG12", gpio_in_pu), /* WLAN_IRQ */ }; /* @@ -444,64 +436,45 @@ int pins_for_u9500(void) return 0; } -void __init mop500_pins_init(void) +static void __init mop500_href_family_pinmaps_init(void) { - nmk_config_pins(mop500_pins_common, - ARRAY_SIZE(mop500_pins_common)); - - ux500_pins_add(mop500_runtime_pins, ARRAY_SIZE(mop500_runtime_pins)); - - ux500_pins_add(mop500_runtime_pins_pre_v60, - ARRAY_SIZE(mop500_runtime_pins_pre_v60)); - switch (pinsfor) { case PINS_FOR_U9500: - nmk_config_pins(u9500_pins, ARRAY_SIZE(u9500_pins)); + pinctrl_register_mappings(u9500_pinmap, + ARRAY_SIZE(u9500_pinmap)); break; - case PINS_FOR_DEFAULT: - nmk_config_pins(u8500_pins, ARRAY_SIZE(u8500_pins)); + pinctrl_register_mappings(u8500_pinmap, + ARRAY_SIZE(u8500_pinmap)); default: break; } - - nmk_config_pins(mop500_pins_default, - ARRAY_SIZE(mop500_pins_default)); } -void __init snowball_pins_init(void) +void __init mop500_pinmaps_init(void) { - nmk_config_pins(mop500_pins_common, - ARRAY_SIZE(mop500_pins_common)); - - ux500_pins_add(mop500_runtime_pins, ARRAY_SIZE(mop500_runtime_pins)); - - nmk_config_pins(u8500_pins, ARRAY_SIZE(u8500_pins)); - - nmk_config_pins(snowball_pins, ARRAY_SIZE(snowball_pins)); + pinctrl_register_mappings(mop500_family_pinmap, + ARRAY_SIZE(mop500_family_pinmap)); + pinctrl_register_mappings(mop500_pinmap, + ARRAY_SIZE(mop500_pinmap)); + mop500_href_family_pinmaps_init(); } -void __init hrefv60_pins_init(void) +void __init snowball_pinmaps_init(void) { - nmk_config_pins(mop500_pins_common, - ARRAY_SIZE(mop500_pins_common)); - - ux500_pins_add(mop500_runtime_pins, ARRAY_SIZE(mop500_runtime_pins)); - - ux500_pins_add(mop500_runtime_pins_v60, - ARRAY_SIZE(mop500_runtime_pins_v60)); - - nmk_config_pins(hrefv60_pins, - ARRAY_SIZE(hrefv60_pins)); - - switch (pinsfor) { - case PINS_FOR_U9500: - nmk_config_pins(u9500_pins, ARRAY_SIZE(u9500_pins)); - break; + pinctrl_register_mappings(mop500_family_pinmap, + ARRAY_SIZE(mop500_family_pinmap)); + pinctrl_register_mappings(snowball_pinmap, + ARRAY_SIZE(snowball_pinmap)); + pinctrl_register_mappings(u8500_pinmap, + ARRAY_SIZE(u8500_pinmap)); +} - case PINS_FOR_DEFAULT: - nmk_config_pins(u8500_pins, ARRAY_SIZE(u8500_pins)); - default: - break; - } +void __init hrefv60_pinmaps_init(void) +{ + pinctrl_register_mappings(mop500_family_pinmap, + ARRAY_SIZE(mop500_family_pinmap)); + pinctrl_register_mappings(hrefv60_pinmap, + ARRAY_SIZE(hrefv60_pinmap)); + mop500_href_family_pinmaps_init(); } diff --git a/arch/arm/mach-ux500/board-mop500.c b/arch/arm/mach-ux500/board-mop500.c index ca0d62599f7..e5c0e6e25cf 100644 --- a/arch/arm/mach-ux500/board-mop500.c +++ b/arch/arm/mach-ux500/board-mop500.c @@ -1,3 +1,4 @@ + /* * Copyright (C) 2008-2009 ST-Ericsson * @@ -618,10 +619,9 @@ static void __init mop500_init_machine(void) mop500_gpio_keys[0].gpio = GPIO_PROX_SENSOR; + mop500_pinmaps_init(); parent = u8500_init_devices(); - mop500_pins_init(); - /* FIXME: parent of ab8500 should be prcmu */ for (i = 0; i < ARRAY_SIZE(mop500_platform_devs); i++) mop500_platform_devs[i]->dev.parent = parent; @@ -651,10 +651,9 @@ static void __init snowball_init_machine(void) int i2c0_devs; int i; + snowball_pinmaps_init(); parent = u8500_init_devices(); - snowball_pins_init(); - for (i = 0; i < ARRAY_SIZE(snowball_platform_devs); i++) snowball_platform_devs[i]->dev.parent = parent; @@ -689,10 +688,9 @@ static void __init hrefv60_init_machine(void) */ mop500_gpio_keys[0].gpio = HREFV60_PROX_SENSE_GPIO; + hrefv60_pinmaps_init(); parent = u8500_init_devices(); - hrefv60_pins_init(); - for (i = 0; i < ARRAY_SIZE(mop500_platform_devs); i++) mop500_platform_devs[i]->dev.parent = parent; @@ -781,6 +779,14 @@ static void __init u8500_init_machine(void) int i2c0_devs; int i; + /* Pinmaps must be in place before devices register */ + if (of_machine_is_compatible("st-ericsson,mop500")) + mop500_pinmaps_init(); + else if (of_machine_is_compatible("calaosystems,snowball-a9500")) + snowball_pinmaps_init(); + else if (of_machine_is_compatible("st-ericsson,hrefv60+")) + hrefv60_pinmaps_init(); + parent = u8500_init_devices(); i2c0_devs = ARRAY_SIZE(mop500_i2c0_devices); @@ -794,14 +800,12 @@ static void __init u8500_init_machine(void) if (of_machine_is_compatible("st-ericsson,mop500")) { mop500_gpio_keys[0].gpio = GPIO_PROX_SENSOR; - mop500_pins_init(); platform_add_devices(mop500_platform_devs, ARRAY_SIZE(mop500_platform_devs)); mop500_sdi_init(parent); } else if (of_machine_is_compatible("calaosystems,snowball-a9500")) { - snowball_pins_init(); platform_add_devices(snowball_platform_devs, ARRAY_SIZE(snowball_platform_devs)); @@ -814,7 +818,6 @@ static void __init u8500_init_machine(void) */ mop500_gpio_keys[0].gpio = HREFV60_PROX_SENSE_GPIO; i2c0_devs -= NUM_PRE_V60_I2C0_DEVICES; - hrefv60_pins_init(); platform_add_devices(mop500_platform_devs, ARRAY_SIZE(mop500_platform_devs)); diff --git a/arch/arm/mach-ux500/board-mop500.h b/arch/arm/mach-ux500/board-mop500.h index 91dc63fe101..bc44c07c71a 100644 --- a/arch/arm/mach-ux500/board-mop500.h +++ b/arch/arm/mach-ux500/board-mop500.h @@ -85,9 +85,9 @@ extern void hrefv60_sdi_init(struct device *parent); extern void mop500_sdi_tc35892_init(struct device *parent); void __init mop500_u8500uib_init(void); void __init mop500_stuib_init(void); -void __init mop500_pins_init(void); -void __init hrefv60_pins_init(void); -void __init snowball_pins_init(void); +void __init mop500_pinmaps_init(void); +void __init snowball_pinmaps_init(void); +void __init hrefv60_pinmaps_init(void); void mop500_uib_i2c_add(int busnum, struct i2c_board_info *info, unsigned n); -- cgit v1.2.3-70-g09d2 From 3b64c09b376ae2a82cccdb25aa0c3bc3c3be9d14 Mon Sep 17 00:00:00 2001 From: Linus Walleij Date: Mon, 7 May 2012 08:50:31 +0200 Subject: ARM: ux500: delete custom pin control system At the beginning of the first patch series I included the custom ux500 pin control system to make sure I could eventually replace it with the standard subsystem driver. So now that we've done so, let's remove it. Acked-by: Stephen Warren Signed-off-by: Linus Walleij --- arch/arm/mach-ux500/Makefile | 2 +- arch/arm/mach-ux500/board-mop500-pins.c | 1 - arch/arm/mach-ux500/pins.c | 88 --------------------------------- arch/arm/mach-ux500/pins.h | 46 ----------------- 4 files changed, 1 insertion(+), 136 deletions(-) delete mode 100644 arch/arm/mach-ux500/pins.c delete mode 100644 arch/arm/mach-ux500/pins.h diff --git a/arch/arm/mach-ux500/Makefile b/arch/arm/mach-ux500/Makefile index 015932c6bf0..11729bc6219 100644 --- a/arch/arm/mach-ux500/Makefile +++ b/arch/arm/mach-ux500/Makefile @@ -3,7 +3,7 @@ # obj-y := clock.o cpu.o devices.o devices-common.o \ - id.o pins.o usb.o timer.o + id.o usb.o timer.o obj-$(CONFIG_CACHE_L2X0) += cache-l2x0.o obj-$(CONFIG_UX500_SOC_DB5500) += cpu-db5500.o dma-db5500.o obj-$(CONFIG_UX500_SOC_DB8500) += cpu-db8500.o devices-db8500.o diff --git a/arch/arm/mach-ux500/board-mop500-pins.c b/arch/arm/mach-ux500/board-mop500-pins.c index 28c456c2906..157af7ee5cd 100644 --- a/arch/arm/mach-ux500/board-mop500-pins.c +++ b/arch/arm/mach-ux500/board-mop500-pins.c @@ -17,7 +17,6 @@ #include #include "pins-db8500.h" -#include "pins.h" #include "board-mop500.h" enum custom_pin_cfg_t { diff --git a/arch/arm/mach-ux500/pins.c b/arch/arm/mach-ux500/pins.c deleted file mode 100644 index 38c1d47b29a..00000000000 --- a/arch/arm/mach-ux500/pins.c +++ /dev/null @@ -1,88 +0,0 @@ -/* - * Copyright (C) ST-Ericsson SA 2010 - * - * Author: Rabin Vincent for ST-Ericsson - * License terms: GNU General Public License (GPL), version 2 - */ - -#include -#include -#include -#include -#include -#include -#include - -#include "pins.h" - -static LIST_HEAD(pin_lookups); -static DEFINE_MUTEX(pin_lookups_mutex); -static DEFINE_SPINLOCK(pins_lock); - -void __init ux500_pins_add(struct ux500_pin_lookup *pl, size_t num) -{ - mutex_lock(&pin_lookups_mutex); - - while (num--) { - list_add_tail(&pl->node, &pin_lookups); - pl++; - } - - mutex_unlock(&pin_lookups_mutex); -} - -struct ux500_pins *ux500_pins_get(const char *name) -{ - struct ux500_pins *pins = NULL; - struct ux500_pin_lookup *pl; - - mutex_lock(&pin_lookups_mutex); - - list_for_each_entry(pl, &pin_lookups, node) { - if (!strcmp(pl->name, name)) { - pins = pl->pins; - goto out; - } - } - -out: - mutex_unlock(&pin_lookups_mutex); - return pins; -} - -int ux500_pins_enable(struct ux500_pins *pins) -{ - unsigned long flags; - int ret = 0; - - spin_lock_irqsave(&pins_lock, flags); - - if (pins->usage++ == 0) - ret = nmk_config_pins(pins->cfg, pins->num); - - spin_unlock_irqrestore(&pins_lock, flags); - return ret; -} - -int ux500_pins_disable(struct ux500_pins *pins) -{ - unsigned long flags; - int ret = 0; - - spin_lock_irqsave(&pins_lock, flags); - - if (WARN_ON(pins->usage == 0)) - goto out; - - if (--pins->usage == 0) - ret = nmk_config_pins_sleep(pins->cfg, pins->num); - -out: - spin_unlock_irqrestore(&pins_lock, flags); - return ret; -} - -void ux500_pins_put(struct ux500_pins *pins) -{ - WARN_ON(!pins); -} diff --git a/arch/arm/mach-ux500/pins.h b/arch/arm/mach-ux500/pins.h deleted file mode 100644 index 0d36af2e7d9..00000000000 --- a/arch/arm/mach-ux500/pins.h +++ /dev/null @@ -1,46 +0,0 @@ -/* - * Copyright (C) ST-Ericsson SA 2010 - * - * Author: Rabin Vincent for ST-Ericsson - * License terms: GNU General Public License (GPL), version 2 - */ - -#ifndef __MACH_UX500_PINS_H -#define __MACH_UX500_PINS_H - -#include -#include - -#define PIN_LOOKUP(_name, _pins) \ -{ \ - .name = _name, \ - .pins = _pins, \ -} - -#define UX500_PINS(name, pins...) \ -struct ux500_pins name = { \ - .cfg = (pin_cfg_t[]) {pins}, \ - .num = ARRAY_SIZE(((pin_cfg_t[]) {pins})), \ -} - -struct ux500_pins { - int usage; - int num; - pin_cfg_t *cfg; -}; - -struct ux500_pin_lookup { - struct list_head node; - const char *name; - struct ux500_pins *pins; -}; - -void __init ux500_pins_add(struct ux500_pin_lookup *pl, size_t num); -void __init ux500_offchip_gpio_init(struct ux500_pins *pins); -struct ux500_pins *ux500_pins_get(const char *name); -int ux500_pins_enable(struct ux500_pins *pins); -int ux500_pins_disable(struct ux500_pins *pins); -void ux500_pins_put(struct ux500_pins *pins); -int pins_for_u9500(void); - -#endif -- cgit v1.2.3-70-g09d2 From a09806607fd20bed2f8c41fe22793386790a14aa Mon Sep 17 00:00:00 2001 From: Linus Walleij Date: Mon, 7 May 2012 01:33:24 +0200 Subject: ARM: ux500: switch to using pinctrl for uart0 UART0 had a hack that enabled its pins on init and put it to sleep on the exit callback. Replace this with the pinctrl calls to do the same thing and update the runtime table with the two apropriate states for runtime/active and idle. Acked-by: Stephen Warren Signed-off-by: Linus Walleij --- arch/arm/mach-ux500/board-mop500-pins.c | 19 ++++++++++ arch/arm/mach-ux500/board-mop500.c | 62 ++++++++++++++++++++++----------- 2 files changed, 60 insertions(+), 21 deletions(-) diff --git a/arch/arm/mach-ux500/board-mop500-pins.c b/arch/arm/mach-ux500/board-mop500-pins.c index 157af7ee5cd..dccd29d6fff 100644 --- a/arch/arm/mach-ux500/board-mop500-pins.c +++ b/arch/arm/mach-ux500/board-mop500-pins.c @@ -45,6 +45,10 @@ BIAS(gpio_in_pu_slpm_gpio_nopull, PIN_INPUT_PULLUP|PIN_GPIOMODE_ENABLED|PIN_SLPM BIAS(gpio_in_pd_slpm_gpio_nopull, PIN_INPUT_PULLDOWN|PIN_GPIOMODE_ENABLED|PIN_SLPM_GPIO|PIN_SLPM_INPUT_NOPULL); BIAS(gpio_out_hi, PIN_OUTPUT_HIGH|PIN_GPIOMODE_ENABLED); BIAS(gpio_out_lo, PIN_OUTPUT_LOW|PIN_GPIOMODE_ENABLED); +/* Sleep modes */ +BIAS(sleep_in_wkup_pdis, PIN_SLPM_DIR_INPUT|PIN_SLPM_WAKEUP_ENABLE|PIN_SLPM_PDIS_DISABLED); +BIAS(sleep_out_hi_wkup_pdis, PIN_SLPM_OUTPUT_HIGH|PIN_SLPM_WAKEUP_ENABLE|PIN_SLPM_PDIS_DISABLED); +BIAS(sleep_out_wkup_pdis, PIN_SLPM_DIR_OUTPUT|PIN_SLPM_WAKEUP_ENABLE|PIN_SLPM_PDIS_DISABLED); /* We use these to define hog settings that are always done on boot */ #define DB8500_MUX_HOG(group,func) \ @@ -58,6 +62,10 @@ BIAS(gpio_out_lo, PIN_OUTPUT_LOW|PIN_GPIOMODE_ENABLED); #define DB8500_PIN(pin,conf,dev) \ PIN_MAP_CONFIGS_PIN_DEFAULT(dev, "pinctrl-db8500", pin, conf) +#define DB8500_PIN_SLEEP(pin,conf,dev) \ + PIN_MAP_CONFIGS_PIN(dev, PINCTRL_STATE_SLEEP, "pinctrl-db8500", \ + pin, conf) + /* Pin control settings */ static struct pinctrl_map __initdata mop500_family_pinmap[] = { /* @@ -115,6 +123,17 @@ static struct pinctrl_map __initdata mop500_family_pinmap[] = { * converted to the pinctrl model. Here we model them as "default" * states. */ + /* Mux in UART0 after initialization */ + DB8500_MUX("u0_a_1", "u0", "uart0"), + DB8500_PIN("GPIO0_AJ5", in_pu, "uart0"), /* CTS */ + DB8500_PIN("GPIO1_AJ3", out_hi, "uart0"), /* RTS */ + DB8500_PIN("GPIO2_AH4", in_pu, "uart0"), /* RXD */ + DB8500_PIN("GPIO3_AH3", out_hi, "uart0"), /* TXD */ + /* Sleep state for UART0 */ + DB8500_PIN_SLEEP("GPIO0_AJ5", sleep_in_wkup_pdis, "uart0"), + DB8500_PIN_SLEEP("GPIO1_AJ3", sleep_out_hi_wkup_pdis, "uart0"), + DB8500_PIN_SLEEP("GPIO2_AH4", sleep_in_wkup_pdis, "uart0"), + DB8500_PIN_SLEEP("GPIO3_AH3", sleep_out_wkup_pdis, "uart0"), /* Mux in LCD data lines 8 thru 11 and LCDA CLK for MCDE TVOUT */ DB8500_MUX("lcd_d8_d11_a_1", "lcd", "mcde-tvout"), DB8500_MUX("lcdaclk_b_1", "lcda", "mcde-tvout"), diff --git a/arch/arm/mach-ux500/board-mop500.c b/arch/arm/mach-ux500/board-mop500.c index e5c0e6e25cf..1dc31652b97 100644 --- a/arch/arm/mach-ux500/board-mop500.c +++ b/arch/arm/mach-ux500/board-mop500.c @@ -30,18 +30,17 @@ #include #include #include - #include #include - #include +#include + #include #include #include #include #include -#include #include #include @@ -49,7 +48,6 @@ #include #include -#include "pins-db8500.h" #include "ste-dma40-db8500.h" #include "devices-db8500.h" #include "board-mop500.h" @@ -522,14 +520,6 @@ static struct stedma40_chan_cfg uart2_dma_cfg_tx = { }; #endif - -static pin_cfg_t mop500_pins_uart0[] = { - GPIO0_U0_CTSn | PIN_INPUT_PULLUP, - GPIO1_U0_RTSn | PIN_OUTPUT_HIGH, - GPIO2_U0_RXD | PIN_INPUT_PULLUP, - GPIO3_U0_TXD | PIN_OUTPUT_HIGH, -}; - #define PRCC_K_SOFTRST_SET 0x18 #define PRCC_K_SOFTRST_CLEAR 0x1C static void ux500_uart0_reset(void) @@ -550,24 +540,33 @@ static void ux500_uart0_reset(void) udelay(1); } +/* This needs to be referenced by callbacks */ +struct pinctrl *u0_p; +struct pinctrl_state *u0_def; +struct pinctrl_state *u0_sleep; + static void ux500_uart0_init(void) { int ret; - ret = nmk_config_pins(mop500_pins_uart0, - ARRAY_SIZE(mop500_pins_uart0)); - if (ret < 0) - pr_err("pl011: uart pins_enable failed\n"); + if (IS_ERR(u0_p) || IS_ERR(u0_def)) + return; + + ret = pinctrl_select_state(u0_p, u0_def); + if (ret) + pr_err("could not set UART0 defstate\n"); } static void ux500_uart0_exit(void) { int ret; - ret = nmk_config_pins_sleep(mop500_pins_uart0, - ARRAY_SIZE(mop500_pins_uart0)); - if (ret < 0) - pr_err("pl011: uart pins_disable failed\n"); + if (IS_ERR(u0_p) || IS_ERR(u0_sleep)) + return; + + ret = pinctrl_select_state(u0_p, u0_sleep); + if (ret) + pr_err("could not set UART0 idlestate\n"); } static struct amba_pl011_data uart0_plat = { @@ -599,7 +598,28 @@ static struct amba_pl011_data uart2_plat = { static void __init mop500_uart_init(struct device *parent) { - db8500_add_uart0(parent, &uart0_plat); + struct amba_device *uart0_device; + + uart0_device = db8500_add_uart0(parent, &uart0_plat); + if (uart0_device) { + u0_p = pinctrl_get(&uart0_device->dev); + if (IS_ERR(u0_p)) + dev_err(&uart0_device->dev, + "could not get UART0 pinctrl\n"); + else { + u0_def = pinctrl_lookup_state(u0_p, + PINCTRL_STATE_DEFAULT); + if (IS_ERR(u0_def)) { + dev_err(&uart0_device->dev, + "could not get UART0 defstate\n"); + } + u0_sleep = pinctrl_lookup_state(u0_p, + PINCTRL_STATE_SLEEP); + if (IS_ERR(u0_sleep)) + dev_err(&uart0_device->dev, + "could not get UART0 idlestate\n"); + } + } db8500_add_uart1(parent, &uart1_plat); db8500_add_uart2(parent, &uart2_plat); } -- cgit v1.2.3-70-g09d2 From 09486cbb26f26cedbfe18b12cedd25607de550df Mon Sep 17 00:00:00 2001 From: Linus Walleij Date: Mon, 7 May 2012 10:29:38 +0200 Subject: ARM: ux500: alter MSP registration to return a device pointer Alter the db8500_add_msp_i2s() calls to return a struct platform_device * pointer, not an integer. We nee the pointer to obtain a pinctrl handle. Cc: Ola Lilja Acked-by: Stephen Warren Signed-off-by: Linus Walleij --- arch/arm/mach-ux500/board-mop500-msp.c | 27 +++++++++++++-------------- 1 file changed, 13 insertions(+), 14 deletions(-) diff --git a/arch/arm/mach-ux500/board-mop500-msp.c b/arch/arm/mach-ux500/board-mop500-msp.c index c8f6300cb7d..aacaf80c66a 100644 --- a/arch/arm/mach-ux500/board-mop500-msp.c +++ b/arch/arm/mach-ux500/board-mop500-msp.c @@ -170,7 +170,8 @@ static struct stedma40_chan_cfg msp2_dma_tx = { /* data_width is set during configuration */ }; -static int db8500_add_msp_i2s(struct device *parent, int id, +static struct platform_device *db8500_add_msp_i2s(struct device *parent, + int id, resource_size_t base, int irq, struct msp_i2s_platform_data *pdata) { @@ -188,10 +189,10 @@ static int db8500_add_msp_i2s(struct device *parent, int id, if (!pdev) { pr_err("Failed to register platform-device 'ux500-msp-i2s.%d'!\n", id); - return -EIO; + return NULL; } - return 0; + return pdev; } /* Platform device for ASoC U8500 machine */ @@ -228,23 +229,21 @@ static struct msp_i2s_platform_data msp3_platform_data = { int mop500_msp_init(struct device *parent) { - int ret; - pr_info("%s: Register platform-device 'snd-soc-u8500'.\n", __func__); platform_device_register(&snd_soc_u8500); pr_info("Initialize MSP I2S-devices.\n"); - ret = db8500_add_msp_i2s(parent, 0, U8500_MSP0_BASE, IRQ_DB8500_MSP0, - &msp0_platform_data); - ret |= db8500_add_msp_i2s(parent, 1, U8500_MSP1_BASE, IRQ_DB8500_MSP1, - &msp1_platform_data); - ret |= db8500_add_msp_i2s(parent, 2, U8500_MSP2_BASE, IRQ_DB8500_MSP2, - &msp2_platform_data); - ret |= db8500_add_msp_i2s(parent, 3, U8500_MSP3_BASE, IRQ_DB8500_MSP1, - &msp3_platform_data); + db8500_add_msp_i2s(parent, 0, U8500_MSP0_BASE, IRQ_DB8500_MSP0, + &msp0_platform_data); + db8500_add_msp_i2s(parent, 1, U8500_MSP1_BASE, IRQ_DB8500_MSP1, + &msp1_platform_data); + db8500_add_msp_i2s(parent, 2, U8500_MSP2_BASE, IRQ_DB8500_MSP2, + &msp2_platform_data); + db8500_add_msp_i2s(parent, 3, U8500_MSP3_BASE, IRQ_DB8500_MSP1, + &msp3_platform_data); pr_info("%s: Register platform-device 'ux500-pcm'\n", __func__); platform_device_register(&ux500_pcm); - return ret; + return 0; } -- cgit v1.2.3-70-g09d2 From 08d98fe0e81cd9424ef2451ed13afe91a9a26f9f Mon Sep 17 00:00:00 2001 From: Linus Walleij Date: Mon, 7 May 2012 10:34:16 +0200 Subject: ARM: ux500: switch MSP to using pinctrl for pins The MSP platform data callbacks use the old custom callbacks to set the state of the pins, switch over to using pinctrl. Cc: Ola Lilja Acked-by: Stephen Warren Signed-off-by: Linus Walleij --- arch/arm/mach-ux500/board-mop500-msp.c | 62 +++++++++++++++++++++------------ arch/arm/mach-ux500/board-mop500-pins.c | 18 +++++++++- 2 files changed, 57 insertions(+), 23 deletions(-) diff --git a/arch/arm/mach-ux500/board-mop500-msp.c b/arch/arm/mach-ux500/board-mop500-msp.c index aacaf80c66a..99604803874 100644 --- a/arch/arm/mach-ux500/board-mop500-msp.c +++ b/arch/arm/mach-ux500/board-mop500-msp.c @@ -7,17 +7,18 @@ #include #include #include -#include +#include +#include #include #include #include -#include #include #include #include +#include "ste-dma40-db8500.h" #include "board-mop500.h" #include "devices-db8500.h" #include "pins-db8500.h" @@ -28,19 +29,10 @@ static DEFINE_SPINLOCK(msp_rxtx_lock); /* Reference Count */ static int msp_rxtx_ref; -static pin_cfg_t mop500_msp1_pins_init[] = { - GPIO33_MSP1_TXD | PIN_OUTPUT_LOW | PIN_SLPM_WAKEUP_DISABLE, - GPIO34_MSP1_TFS | PIN_INPUT_NOPULL | PIN_SLPM_WAKEUP_DISABLE, - GPIO35_MSP1_TCK | PIN_INPUT_NOPULL | PIN_SLPM_WAKEUP_DISABLE, - GPIO36_MSP1_RXD | PIN_INPUT_NOPULL | PIN_SLPM_WAKEUP_DISABLE, -}; - -static pin_cfg_t mop500_msp1_pins_exit[] = { - GPIO33_MSP1_TXD | PIN_OUTPUT_LOW | PIN_SLPM_WAKEUP_ENABLE, - GPIO34_MSP1_TFS | PIN_INPUT_NOPULL | PIN_SLPM_WAKEUP_ENABLE, - GPIO35_MSP1_TCK | PIN_INPUT_NOPULL | PIN_SLPM_WAKEUP_ENABLE, - GPIO36_MSP1_RXD | PIN_INPUT_NOPULL | PIN_SLPM_WAKEUP_ENABLE, -}; +/* Pin modes */ +struct pinctrl *msp1_p; +struct pinctrl_state *msp1_def; +struct pinctrl_state *msp1_sleep; int msp13_i2s_init(void) { @@ -48,9 +40,11 @@ int msp13_i2s_init(void) unsigned long flags; spin_lock_irqsave(&msp_rxtx_lock, flags); - if (msp_rxtx_ref == 0) - retval = nmk_config_pins( - ARRAY_AND_SIZE(mop500_msp1_pins_init)); + if (msp_rxtx_ref == 0 && !(IS_ERR(msp1_p) || IS_ERR(msp1_def))) { + retval = pinctrl_select_state(msp1_p, msp1_def); + if (retval) + pr_err("could not set MSP1 defstate\n"); + } if (!retval) msp_rxtx_ref++; spin_unlock_irqrestore(&msp_rxtx_lock, flags); @@ -66,9 +60,11 @@ int msp13_i2s_exit(void) spin_lock_irqsave(&msp_rxtx_lock, flags); WARN_ON(!msp_rxtx_ref); msp_rxtx_ref--; - if (msp_rxtx_ref == 0) - retval = nmk_config_pins_sleep( - ARRAY_AND_SIZE(mop500_msp1_pins_exit)); + if (msp_rxtx_ref == 0 && !(IS_ERR(msp1_p) || IS_ERR(msp1_sleep))) { + retval = pinctrl_select_state(msp1_p, msp1_sleep); + if (retval) + pr_err("could not set MSP1 sleepstate\n"); + } spin_unlock_irqrestore(&msp_rxtx_lock, flags); return retval; @@ -229,19 +225,41 @@ static struct msp_i2s_platform_data msp3_platform_data = { int mop500_msp_init(struct device *parent) { + struct platform_device *msp1; + pr_info("%s: Register platform-device 'snd-soc-u8500'.\n", __func__); platform_device_register(&snd_soc_u8500); pr_info("Initialize MSP I2S-devices.\n"); db8500_add_msp_i2s(parent, 0, U8500_MSP0_BASE, IRQ_DB8500_MSP0, &msp0_platform_data); - db8500_add_msp_i2s(parent, 1, U8500_MSP1_BASE, IRQ_DB8500_MSP1, + msp1 = db8500_add_msp_i2s(parent, 1, U8500_MSP1_BASE, IRQ_DB8500_MSP1, &msp1_platform_data); db8500_add_msp_i2s(parent, 2, U8500_MSP2_BASE, IRQ_DB8500_MSP2, &msp2_platform_data); db8500_add_msp_i2s(parent, 3, U8500_MSP3_BASE, IRQ_DB8500_MSP1, &msp3_platform_data); + /* Get the pinctrl handle for MSP1 */ + if (msp1) { + msp1_p = pinctrl_get(&msp1->dev); + if (IS_ERR(msp1_p)) + dev_err(&msp1->dev, "could not get MSP1 pinctrl\n"); + else { + msp1_def = pinctrl_lookup_state(msp1_p, + PINCTRL_STATE_DEFAULT); + if (IS_ERR(msp1_def)) { + dev_err(&msp1->dev, + "could not get MSP1 defstate\n"); + } + msp1_sleep = pinctrl_lookup_state(msp1_p, + PINCTRL_STATE_SLEEP); + if (IS_ERR(msp1_sleep)) + dev_err(&msp1->dev, + "could not get MSP1 idlestate\n"); + } + } + pr_info("%s: Register platform-device 'ux500-pcm'\n", __func__); platform_device_register(&ux500_pcm); diff --git a/arch/arm/mach-ux500/board-mop500-pins.c b/arch/arm/mach-ux500/board-mop500-pins.c index dccd29d6fff..32fd9920446 100644 --- a/arch/arm/mach-ux500/board-mop500-pins.c +++ b/arch/arm/mach-ux500/board-mop500-pins.c @@ -32,12 +32,14 @@ static enum custom_pin_cfg_t pinsfor; BIAS(pd, PIN_PULL_DOWN); BIAS(slpm_gpio_nopull, PIN_SLPM_GPIO|PIN_SLPM_INPUT_NOPULL); BIAS(in_nopull, PIN_INPUT_NOPULL); +BIAS(in_nopull_sleep_nowkup, PIN_INPUT_NOPULL|PIN_SLPM_WAKEUP_DISABLE); BIAS(in_pu, PIN_INPUT_PULLUP); BIAS(in_pd, PIN_INPUT_PULLDOWN); BIAS(in_pd_slpm_in_pu, PIN_INPUT_PULLDOWN|PIN_SLPM_INPUT_PULLUP); BIAS(in_pu_slpm_out_lo, PIN_INPUT_PULLUP|PIN_SLPM_OUTPUT_LOW); BIAS(out_hi, PIN_OUTPUT_HIGH); BIAS(out_lo, PIN_OUTPUT_LOW); +BIAS(out_lo_sleep_nowkup, PIN_OUTPUT_LOW|PIN_SLPM_WAKEUP_DISABLE); /* These also force them into GPIO mode */ BIAS(gpio_in_pu, PIN_INPUT_PULLUP|PIN_GPIOMODE_ENABLED); BIAS(gpio_in_pd, PIN_INPUT_PULLDOWN|PIN_GPIOMODE_ENABLED); @@ -47,7 +49,9 @@ BIAS(gpio_out_hi, PIN_OUTPUT_HIGH|PIN_GPIOMODE_ENABLED); BIAS(gpio_out_lo, PIN_OUTPUT_LOW|PIN_GPIOMODE_ENABLED); /* Sleep modes */ BIAS(sleep_in_wkup_pdis, PIN_SLPM_DIR_INPUT|PIN_SLPM_WAKEUP_ENABLE|PIN_SLPM_PDIS_DISABLED); +BIAS(sleep_in_nopull_wkup, PIN_INPUT_NOPULL|PIN_SLPM_WAKEUP_ENABLE); BIAS(sleep_out_hi_wkup_pdis, PIN_SLPM_OUTPUT_HIGH|PIN_SLPM_WAKEUP_ENABLE|PIN_SLPM_PDIS_DISABLED); +BIAS(sleep_out_lo_wkup, PIN_OUTPUT_LOW|PIN_SLPM_WAKEUP_ENABLE); BIAS(sleep_out_wkup_pdis, PIN_SLPM_DIR_OUTPUT|PIN_SLPM_WAKEUP_ENABLE|PIN_SLPM_PDIS_DISABLED); /* We use these to define hog settings that are always done on boot */ @@ -129,11 +133,23 @@ static struct pinctrl_map __initdata mop500_family_pinmap[] = { DB8500_PIN("GPIO1_AJ3", out_hi, "uart0"), /* RTS */ DB8500_PIN("GPIO2_AH4", in_pu, "uart0"), /* RXD */ DB8500_PIN("GPIO3_AH3", out_hi, "uart0"), /* TXD */ - /* Sleep state for UART0 */ + /* UART0 sleep state */ DB8500_PIN_SLEEP("GPIO0_AJ5", sleep_in_wkup_pdis, "uart0"), DB8500_PIN_SLEEP("GPIO1_AJ3", sleep_out_hi_wkup_pdis, "uart0"), DB8500_PIN_SLEEP("GPIO2_AH4", sleep_in_wkup_pdis, "uart0"), DB8500_PIN_SLEEP("GPIO3_AH3", sleep_out_wkup_pdis, "uart0"), + /* MSP1 for ALSA codec */ + DB8500_MUX("msp1txrx_a_1", "msp1", "ux500-msp-i2s.1"), + DB8500_MUX("msp1_a_1", "msp1", "ux500-msp-i2s.1"), + DB8500_PIN("GPIO33_AF2", out_lo_sleep_nowkup, "ux500-msp-i2s.1"), + DB8500_PIN("GPIO34_AE1", in_nopull_sleep_nowkup, "ux500-msp-i2s.1"), + DB8500_PIN("GPIO35_AE2", in_nopull_sleep_nowkup, "ux500-msp-i2s.1"), + DB8500_PIN("GPIO36_AG2", in_nopull_sleep_nowkup, "ux500-msp-i2s.1"), + /* MSP1 sleep state */ + DB8500_PIN_SLEEP("GPIO33_AF2", sleep_out_lo_wkup, "ux500-msp-i2s.1"), + DB8500_PIN_SLEEP("GPIO34_AE1", sleep_in_nopull_wkup, "ux500-msp-i2s.1"), + DB8500_PIN_SLEEP("GPIO35_AE2", sleep_in_nopull_wkup, "ux500-msp-i2s.1"), + DB8500_PIN_SLEEP("GPIO36_AG2", sleep_in_nopull_wkup, "ux500-msp-i2s.1"), /* Mux in LCD data lines 8 thru 11 and LCDA CLK for MCDE TVOUT */ DB8500_MUX("lcd_d8_d11_a_1", "lcd", "mcde-tvout"), DB8500_MUX("lcdaclk_b_1", "lcda", "mcde-tvout"), -- cgit v1.2.3-70-g09d2