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authorArnd Bergmann <arnd@arndb.de>2012-11-26 12:57:58 +0100
committerArnd Bergmann <arnd@arndb.de>2012-11-26 12:57:58 +0100
commiteabc5fa51c1fae4b66cf883e3a3c2b3ca794494c (patch)
tree7e17333920f4ab9986f3f40e881b4bc890a91724 /drivers
parent9489e9dcae718d5fde988e4a684a0f55b5f94d17 (diff)
parentdf1590d9ae5e37e07e7cf91107e4c2c946ce8bf4 (diff)
Merge branch 'spear-for-3.8' of git://git.linaro.org/people/vireshk/linux into next/dt2
From Viresh Kumar <viresh.kumar@linaro.org>: These are DT updates for SPEAr SoCs. There aren't any fixes that we want to get into 3.7-rc* and we are happy with 3.8. Some of the dtbs which use gpiopinctrl have dependency on Linus's pinctrl tree, where an earlier update for adding gpiopinctrl node is present. * 'spear-for-3.8' of git://git.linaro.org/people/vireshk/linux: ARM: SPEAr3xx: Shirq: Move shirq controller out of plat/ ARM: SPEAr320: DT: Add SPEAr 320 HMI board support ARM: SPEAr3xx: DT: add shirq node for interrupt multiplexor ARM: SPEAr3xx: shirq: simplify and move the shared irq multiplexor to DT ARM: SPEAr1310: Fix AUXDATA for compact flash controller ARM: SPEAr13xx: Remove fields not required for ssp controller ARM: SPEAr1310: Move 1310 specific misc register into machine specific files ARM: SPEAr: DT: Update device nodes ARM: SPEAr: DT: add uart state to fix warning ARM: SPEAr: DT: Modify DT bindings for STMMAC ARM: SPEAr: DT: Fix existing DT support ARM: SPEAr: DT: Update partition info for MTD devices ARM: SPEAr: DT: Update pinctrl list ARM: SPEAr13xx: DT: Add spics gpio controller nodes Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Diffstat (limited to 'drivers')
-rw-r--r--drivers/clk/spear/spear1310_clock.c1
-rw-r--r--drivers/gpio/Kconfig22
-rw-r--r--drivers/gpio/Makefile3
-rw-r--r--drivers/gpio/gpio-clps711x.c199
-rw-r--r--drivers/gpio/gpio-da9055.c204
-rw-r--r--drivers/gpio/gpio-em.c48
-rw-r--r--drivers/gpio/gpio-max730x.c12
-rw-r--r--drivers/gpio/gpio-mvebu.c9
-rw-r--r--drivers/gpio/gpio-omap.c2
-rw-r--r--drivers/gpio/gpio-pca953x.c55
-rw-r--r--drivers/gpio/gpio-pch.c1
-rw-r--r--drivers/gpio/gpio-pl061.c59
-rw-r--r--drivers/gpio/gpio-spear-spics.c217
-rw-r--r--drivers/gpio/gpio-tc3589x.c20
-rw-r--r--drivers/gpio/gpio-tegra.c43
-rw-r--r--drivers/gpio/gpio-twl4030.c35
-rw-r--r--drivers/gpio/gpio-vt8500.c2
-rw-r--r--drivers/gpio/gpiolib-of.c40
-rw-r--r--drivers/gpio/gpiolib.c170
-rw-r--r--drivers/irqchip/Makefile3
-rw-r--r--drivers/irqchip/spear-shirq.c316
-rw-r--r--drivers/pinctrl/Kconfig26
-rw-r--r--drivers/pinctrl/Makefile6
-rw-r--r--drivers/pinctrl/core.c29
-rw-r--r--drivers/pinctrl/core.h2
-rw-r--r--drivers/pinctrl/devicetree.c11
-rw-r--r--drivers/pinctrl/mvebu/Kconfig24
-rw-r--r--drivers/pinctrl/mvebu/Makefile5
-rw-r--r--drivers/pinctrl/mvebu/pinctrl-armada-370.c (renamed from drivers/pinctrl/pinctrl-armada-370.c)0
-rw-r--r--drivers/pinctrl/mvebu/pinctrl-armada-xp.c (renamed from drivers/pinctrl/pinctrl-armada-xp.c)0
-rw-r--r--drivers/pinctrl/mvebu/pinctrl-dove.c (renamed from drivers/pinctrl/pinctrl-dove.c)0
-rw-r--r--drivers/pinctrl/mvebu/pinctrl-kirkwood.c (renamed from drivers/pinctrl/pinctrl-kirkwood.c)0
-rw-r--r--drivers/pinctrl/mvebu/pinctrl-mvebu.c (renamed from drivers/pinctrl/pinctrl-mvebu.c)1
-rw-r--r--drivers/pinctrl/mvebu/pinctrl-mvebu.h (renamed from drivers/pinctrl/pinctrl-mvebu.h)0
-rw-r--r--drivers/pinctrl/pinctrl-coh901.c122
-rw-r--r--drivers/pinctrl/pinctrl-exynos.c1
-rw-r--r--drivers/pinctrl/pinctrl-sirf.c52
-rw-r--r--drivers/pinctrl/pinctrl-u300.c42
-rw-r--r--drivers/pinctrl/pinmux.c67
-rw-r--r--drivers/pinctrl/spear/Kconfig11
-rw-r--r--drivers/pinctrl/spear/Makefile1
-rw-r--r--drivers/pinctrl/spear/pinctrl-plgpio.c746
-rw-r--r--drivers/pinctrl/spear/pinctrl-spear.c107
-rw-r--r--drivers/pinctrl/spear/pinctrl-spear.h46
-rw-r--r--drivers/pinctrl/spear/pinctrl-spear1310.c264
-rw-r--r--drivers/pinctrl/spear/pinctrl-spear300.c2
-rw-r--r--drivers/pinctrl/spear/pinctrl-spear310.c2
-rw-r--r--drivers/pinctrl/spear/pinctrl-spear320.c2
-rw-r--r--drivers/pinctrl/spear/pinctrl-spear3xx.c37
49 files changed, 2691 insertions, 376 deletions
diff --git a/drivers/clk/spear/spear1310_clock.c b/drivers/clk/spear/spear1310_clock.c
index 0fcec2aae19..cf7e17685a2 100644
--- a/drivers/clk/spear/spear1310_clock.c
+++ b/drivers/clk/spear/spear1310_clock.c
@@ -20,6 +20,7 @@
#include <mach/spear.h>
#include "clk.h"
+#define VA_SPEAR1310_RAS_BASE IOMEM(UL(0xFA400000))
/* PLL related registers and bit values */
#define SPEAR1310_PLL_CFG (VA_MISC_BASE + 0x210)
/* PLL_CFG bit values */
diff --git a/drivers/gpio/Kconfig b/drivers/gpio/Kconfig
index 47150f5ded0..b0e67b200aa 100644
--- a/drivers/gpio/Kconfig
+++ b/drivers/gpio/Kconfig
@@ -86,11 +86,26 @@ config GPIO_DA9052
help
Say yes here to enable the GPIO driver for the DA9052 chip.
+config GPIO_DA9055
+ tristate "Dialog Semiconductor DA9055 GPIO"
+ depends on MFD_DA9055
+ help
+ Say yes here to enable the GPIO driver for the DA9055 chip.
+
+ The Dialog DA9055 PMIC chip has 3 GPIO pins that can be
+ be controller by this driver.
+
+ If driver is built as a module it will be called gpio-da9055.
+
config GPIO_MAX730X
tristate
comment "Memory mapped GPIO drivers:"
+config GPIO_CLPS711X
+ def_bool y
+ depends on ARCH_CLPS711X
+
config GPIO_GENERIC_PLATFORM
tristate "Generic memory-mapped GPIO controller support (MMIO platform device)"
select GPIO_GENERIC
@@ -181,6 +196,13 @@ config GPIO_PXA
help
Say yes here to support the PXA GPIO device
+config GPIO_SPEAR_SPICS
+ bool "ST SPEAr13xx SPI Chip Select as GPIO support"
+ depends on PLAT_SPEAR
+ select GENERIC_IRQ_CHIP
+ help
+ Say yes here to support ST SPEAr SPI Chip Select as GPIO device
+
config GPIO_STA2X11
bool "STA2x11/ConneXt GPIO support"
depends on MFD_STA2X11
diff --git a/drivers/gpio/Makefile b/drivers/gpio/Makefile
index 9aeed670732..a268d99f4e4 100644
--- a/drivers/gpio/Makefile
+++ b/drivers/gpio/Makefile
@@ -16,8 +16,10 @@ obj-$(CONFIG_GPIO_ADP5588) += gpio-adp5588.o
obj-$(CONFIG_GPIO_AMD8111) += gpio-amd8111.o
obj-$(CONFIG_GPIO_ARIZONA) += gpio-arizona.o
obj-$(CONFIG_GPIO_BT8XX) += gpio-bt8xx.o
+obj-$(CONFIG_GPIO_CLPS711X) += gpio-clps711x.o
obj-$(CONFIG_GPIO_CS5535) += gpio-cs5535.o
obj-$(CONFIG_GPIO_DA9052) += gpio-da9052.o
+obj-$(CONFIG_GPIO_DA9055) += gpio-da9055.o
obj-$(CONFIG_ARCH_DAVINCI) += gpio-davinci.o
obj-$(CONFIG_GPIO_EM) += gpio-em.o
obj-$(CONFIG_GPIO_EP93XX) += gpio-ep93xx.o
@@ -57,6 +59,7 @@ obj-$(CONFIG_PLAT_SAMSUNG) += gpio-samsung.o
obj-$(CONFIG_ARCH_SA1100) += gpio-sa1100.o
obj-$(CONFIG_GPIO_SCH) += gpio-sch.o
obj-$(CONFIG_GPIO_SODAVILLE) += gpio-sodaville.o
+obj-$(CONFIG_GPIO_SPEAR_SPICS) += gpio-spear-spics.o
obj-$(CONFIG_GPIO_STA2X11) += gpio-sta2x11.o
obj-$(CONFIG_GPIO_STMPE) += gpio-stmpe.o
obj-$(CONFIG_GPIO_STP_XWAY) += gpio-stp-xway.o
diff --git a/drivers/gpio/gpio-clps711x.c b/drivers/gpio/gpio-clps711x.c
new file mode 100644
index 00000000000..ce63b75b13f
--- /dev/null
+++ b/drivers/gpio/gpio-clps711x.c
@@ -0,0 +1,199 @@
+/*
+ * CLPS711X GPIO driver
+ *
+ * Copyright (C) 2012 Alexander Shiyan <shc_work@mail.ru>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ */
+
+#include <linux/io.h>
+#include <linux/slab.h>
+#include <linux/gpio.h>
+#include <linux/module.h>
+#include <linux/spinlock.h>
+#include <linux/platform_device.h>
+
+#include <mach/hardware.h>
+
+#define CLPS711X_GPIO_PORTS 5
+#define CLPS711X_GPIO_NAME "gpio-clps711x"
+
+struct clps711x_gpio {
+ struct gpio_chip chip[CLPS711X_GPIO_PORTS];
+ spinlock_t lock;
+};
+
+static void __iomem *clps711x_ports[] = {
+ CLPS711X_VIRT_BASE + PADR,
+ CLPS711X_VIRT_BASE + PBDR,
+ CLPS711X_VIRT_BASE + PCDR,
+ CLPS711X_VIRT_BASE + PDDR,
+ CLPS711X_VIRT_BASE + PEDR,
+};
+
+static void __iomem *clps711x_pdirs[] = {
+ CLPS711X_VIRT_BASE + PADDR,
+ CLPS711X_VIRT_BASE + PBDDR,
+ CLPS711X_VIRT_BASE + PCDDR,
+ CLPS711X_VIRT_BASE + PDDDR,
+ CLPS711X_VIRT_BASE + PEDDR,
+};
+
+#define clps711x_port(x) clps711x_ports[x->base / 8]
+#define clps711x_pdir(x) clps711x_pdirs[x->base / 8]
+
+static int gpio_clps711x_get(struct gpio_chip *chip, unsigned offset)
+{
+ return !!(readb(clps711x_port(chip)) & (1 << offset));
+}
+
+static void gpio_clps711x_set(struct gpio_chip *chip, unsigned offset,
+ int value)
+{
+ int tmp;
+ unsigned long flags;
+ struct clps711x_gpio *gpio = dev_get_drvdata(chip->dev);
+
+ spin_lock_irqsave(&gpio->lock, flags);
+ tmp = readb(clps711x_port(chip)) & ~(1 << offset);
+ if (value)
+ tmp |= 1 << offset;
+ writeb(tmp, clps711x_port(chip));
+ spin_unlock_irqrestore(&gpio->lock, flags);
+}
+
+static int gpio_clps711x_dir_in(struct gpio_chip *chip, unsigned offset)
+{
+ int tmp;
+ unsigned long flags;
+ struct clps711x_gpio *gpio = dev_get_drvdata(chip->dev);
+
+ spin_lock_irqsave(&gpio->lock, flags);
+ tmp = readb(clps711x_pdir(chip)) & ~(1 << offset);
+ writeb(tmp, clps711x_pdir(chip));
+ spin_unlock_irqrestore(&gpio->lock, flags);
+
+ return 0;
+}
+
+static int gpio_clps711x_dir_out(struct gpio_chip *chip, unsigned offset,
+ int value)
+{
+ int tmp;
+ unsigned long flags;
+ struct clps711x_gpio *gpio = dev_get_drvdata(chip->dev);
+
+ spin_lock_irqsave(&gpio->lock, flags);
+ tmp = readb(clps711x_pdir(chip)) | (1 << offset);
+ writeb(tmp, clps711x_pdir(chip));
+ tmp = readb(clps711x_port(chip)) & ~(1 << offset);
+ if (value)
+ tmp |= 1 << offset;
+ writeb(tmp, clps711x_port(chip));
+ spin_unlock_irqrestore(&gpio->lock, flags);
+
+ return 0;
+}
+
+static int gpio_clps711x_dir_in_inv(struct gpio_chip *chip, unsigned offset)
+{
+ int tmp;
+ unsigned long flags;
+ struct clps711x_gpio *gpio = dev_get_drvdata(chip->dev);
+
+ spin_lock_irqsave(&gpio->lock, flags);
+ tmp = readb(clps711x_pdir(chip)) | (1 << offset);
+ writeb(tmp, clps711x_pdir(chip));
+ spin_unlock_irqrestore(&gpio->lock, flags);
+
+ return 0;
+}
+
+static int gpio_clps711x_dir_out_inv(struct gpio_chip *chip, unsigned offset,
+ int value)
+{
+ int tmp;
+ unsigned long flags;
+ struct clps711x_gpio *gpio = dev_get_drvdata(chip->dev);
+
+ spin_lock_irqsave(&gpio->lock, flags);
+ tmp = readb(clps711x_pdir(chip)) & ~(1 << offset);
+ writeb(tmp, clps711x_pdir(chip));
+ tmp = readb(clps711x_port(chip)) & ~(1 << offset);
+ if (value)
+ tmp |= 1 << offset;
+ writeb(tmp, clps711x_port(chip));
+ spin_unlock_irqrestore(&gpio->lock, flags);
+
+ return 0;
+}
+
+static struct {
+ char *name;
+ int nr;
+ int inv_dir;
+} clps711x_gpio_ports[] __initconst = {
+ { "PORTA", 8, 0, },
+ { "PORTB", 8, 0, },
+ { "PORTC", 8, 0, },
+ { "PORTD", 8, 1, },
+ { "PORTE", 3, 0, },
+};
+
+static int __init gpio_clps711x_init(void)
+{
+ int i;
+ struct platform_device *pdev;
+ struct clps711x_gpio *gpio;
+
+ pdev = platform_device_alloc(CLPS711X_GPIO_NAME, 0);
+ if (!pdev) {
+ pr_err("Cannot create platform device: %s\n",
+ CLPS711X_GPIO_NAME);
+ return -ENOMEM;
+ }
+
+ platform_device_add(pdev);
+
+ gpio = devm_kzalloc(&pdev->dev, sizeof(struct clps711x_gpio),
+ GFP_KERNEL);
+ if (!gpio) {
+ dev_err(&pdev->dev, "GPIO allocating memory error\n");
+ platform_device_unregister(pdev);
+ return -ENOMEM;
+ }
+
+ platform_set_drvdata(pdev, gpio);
+
+ spin_lock_init(&gpio->lock);
+
+ for (i = 0; i < CLPS711X_GPIO_PORTS; i++) {
+ gpio->chip[i].owner = THIS_MODULE;
+ gpio->chip[i].dev = &pdev->dev;
+ gpio->chip[i].label = clps711x_gpio_ports[i].name;
+ gpio->chip[i].base = i * 8;
+ gpio->chip[i].ngpio = clps711x_gpio_ports[i].nr;
+ gpio->chip[i].get = gpio_clps711x_get;
+ gpio->chip[i].set = gpio_clps711x_set;
+ if (!clps711x_gpio_ports[i].inv_dir) {
+ gpio->chip[i].direction_input = gpio_clps711x_dir_in;
+ gpio->chip[i].direction_output = gpio_clps711x_dir_out;
+ } else {
+ gpio->chip[i].direction_input = gpio_clps711x_dir_in_inv;
+ gpio->chip[i].direction_output = gpio_clps711x_dir_out_inv;
+ }
+ WARN_ON(gpiochip_add(&gpio->chip[i]));
+ }
+
+ dev_info(&pdev->dev, "GPIO driver initialized\n");
+
+ return 0;
+}
+arch_initcall(gpio_clps711x_init);
+
+MODULE_LICENSE("GPL v2");
+MODULE_AUTHOR("Alexander Shiyan <shc_work@mail.ru>");
+MODULE_DESCRIPTION("CLPS711X GPIO driver");
diff --git a/drivers/gpio/gpio-da9055.c b/drivers/gpio/gpio-da9055.c
new file mode 100644
index 00000000000..55d83c7d9c7
--- /dev/null
+++ b/drivers/gpio/gpio-da9055.c
@@ -0,0 +1,204 @@
+/*
+ * GPIO Driver for Dialog DA9055 PMICs.
+ *
+ * Copyright(c) 2012 Dialog Semiconductor Ltd.
+ *
+ * Author: David Dajun Chen <dchen@diasemi.com>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.
+ *
+ */
+#include <linux/module.h>
+#include <linux/platform_device.h>
+#include <linux/gpio.h>
+
+#include <linux/mfd/da9055/core.h>
+#include <linux/mfd/da9055/reg.h>
+#include <linux/mfd/da9055/pdata.h>
+
+#define DA9055_VDD_IO 0x0
+#define DA9055_PUSH_PULL 0x3
+#define DA9055_ACT_LOW 0x0
+#define DA9055_GPI 0x1
+#define DA9055_PORT_MASK 0x3
+#define DA9055_PORT_SHIFT(offset) (4 * (offset % 2))
+
+#define DA9055_INPUT DA9055_GPI
+#define DA9055_OUTPUT DA9055_PUSH_PULL
+#define DA9055_IRQ_GPI0 3
+
+struct da9055_gpio {
+ struct da9055 *da9055;
+ struct gpio_chip gp;
+};
+
+static inline struct da9055_gpio *to_da9055_gpio(struct gpio_chip *chip)
+{
+ return container_of(chip, struct da9055_gpio, gp);
+}
+
+static int da9055_gpio_get(struct gpio_chip *gc, unsigned offset)
+{
+ struct da9055_gpio *gpio = to_da9055_gpio(gc);
+ int gpio_direction = 0;
+ int ret;
+
+ /* Get GPIO direction */
+ ret = da9055_reg_read(gpio->da9055, (offset >> 1) + DA9055_REG_GPIO0_1);
+ if (ret < 0)
+ return ret;
+
+ gpio_direction = ret & (DA9055_PORT_MASK) << DA9055_PORT_SHIFT(offset);
+ gpio_direction >>= DA9055_PORT_SHIFT(offset);
+ switch (gpio_direction) {
+ case DA9055_INPUT:
+ ret = da9055_reg_read(gpio->da9055, DA9055_REG_STATUS_B);
+ if (ret < 0)
+ return ret;
+ break;
+ case DA9055_OUTPUT:
+ ret = da9055_reg_read(gpio->da9055, DA9055_REG_GPIO_MODE0_2);
+ if (ret < 0)
+ return ret;
+ }
+
+ return ret & (1 << offset);
+
+}
+
+static void da9055_gpio_set(struct gpio_chip *gc, unsigned offset, int value)
+{
+ struct da9055_gpio *gpio = to_da9055_gpio(gc);
+
+ da9055_reg_update(gpio->da9055,
+ DA9055_REG_GPIO_MODE0_2,
+ 1 << offset,
+ value << offset);
+}
+
+static int da9055_gpio_direction_input(struct gpio_chip *gc, unsigned offset)
+{
+ struct da9055_gpio *gpio = to_da9055_gpio(gc);
+ unsigned char reg_byte;
+
+ reg_byte = (DA9055_ACT_LOW | DA9055_GPI)
+ << DA9055_PORT_SHIFT(offset);
+
+ return da9055_reg_update(gpio->da9055, (offset >> 1) +
+ DA9055_REG_GPIO0_1,
+ DA9055_PORT_MASK <<
+ DA9055_PORT_SHIFT(offset),
+ reg_byte);
+}
+
+static int da9055_gpio_direction_output(struct gpio_chip *gc,
+ unsigned offset, int value)
+{
+ struct da9055_gpio *gpio = to_da9055_gpio(gc);
+ unsigned char reg_byte;
+ int ret;
+
+ reg_byte = (DA9055_VDD_IO | DA9055_PUSH_PULL)
+ << DA9055_PORT_SHIFT(offset);
+
+ ret = da9055_reg_update(gpio->da9055, (offset >> 1) +
+ DA9055_REG_GPIO0_1,
+ DA9055_PORT_MASK <<
+ DA9055_PORT_SHIFT(offset),
+ reg_byte);
+ if (ret < 0)
+ return ret;
+
+ da9055_gpio_set(gc, offset, value);
+
+ return 0;
+}
+
+static int da9055_gpio_to_irq(struct gpio_chip *gc, u32 offset)
+{
+ struct da9055_gpio *gpio = to_da9055_gpio(gc);
+ struct da9055 *da9055 = gpio->da9055;
+
+ return regmap_irq_get_virq(da9055->irq_data,
+ DA9055_IRQ_GPI0 + offset);
+}
+
+static struct gpio_chip reference_gp __devinitdata = {
+ .label = "da9055-gpio",
+ .owner = THIS_MODULE,
+ .get = da9055_gpio_get,
+ .set = da9055_gpio_set,
+ .direction_input = da9055_gpio_direction_input,
+ .direction_output = da9055_gpio_direction_output,
+ .to_irq = da9055_gpio_to_irq,
+ .can_sleep = 1,
+ .ngpio = 3,
+ .base = -1,
+};
+
+static int __devinit da9055_gpio_probe(struct platform_device *pdev)
+{
+ struct da9055_gpio *gpio;
+ struct da9055_pdata *pdata;
+ int ret;
+
+ gpio = devm_kzalloc(&pdev->dev, sizeof(*gpio), GFP_KERNEL);
+ if (gpio == NULL)
+ return -ENOMEM;
+
+ gpio->da9055 = dev_get_drvdata(pdev->dev.parent);
+ pdata = gpio->da9055->dev->platform_data;
+
+ gpio->gp = reference_gp;
+ if (pdata && pdata->gpio_base)
+ gpio->gp.base = pdata->gpio_base;
+
+ ret = gpiochip_add(&gpio->gp);
+ if (ret < 0) {
+ dev_err(&pdev->dev, "Could not register gpiochip, %d\n", ret);
+ goto err_mem;
+ }
+
+ platform_set_drvdata(pdev, gpio);
+
+ return 0;
+
+err_mem:
+ return ret;
+}
+
+static int __devexit da9055_gpio_remove(struct platform_device *pdev)
+{
+ struct da9055_gpio *gpio = platform_get_drvdata(pdev);
+
+ return gpiochip_remove(&gpio->gp);
+}
+
+static struct platform_driver da9055_gpio_driver = {
+ .probe = da9055_gpio_probe,
+ .remove = __devexit_p(da9055_gpio_remove),
+ .driver = {
+ .name = "da9055-gpio",
+ .owner = THIS_MODULE,
+ },
+};
+
+static int __init da9055_gpio_init(void)
+{
+ return platform_driver_register(&da9055_gpio_driver);
+}
+subsys_initcall(da9055_gpio_init);
+
+static void __exit da9055_gpio_exit(void)
+{
+ platform_driver_unregister(&da9055_gpio_driver);
+}
+module_exit(da9055_gpio_exit);
+
+MODULE_AUTHOR("David Dajun Chen <dchen@diasemi.com>");
+MODULE_DESCRIPTION("DA9055 GPIO Device Driver");
+MODULE_LICENSE("GPL");
+MODULE_ALIAS("platform:da9055-gpio");
diff --git a/drivers/gpio/gpio-em.c b/drivers/gpio/gpio-em.c
index efb4c2d0d13..b00706329d2 100644
--- a/drivers/gpio/gpio-em.c
+++ b/drivers/gpio/gpio-em.c
@@ -35,7 +35,6 @@
struct em_gio_priv {
void __iomem *base0;
void __iomem *base1;
- unsigned int irq_base;
spinlock_t sense_lock;
struct platform_device *pdev;
struct gpio_chip gpio_chip;
@@ -214,7 +213,7 @@ static int em_gio_direction_output(struct gpio_chip *chip, unsigned offset,
static int em_gio_to_irq(struct gpio_chip *chip, unsigned offset)
{
- return irq_find_mapping(gpio_to_priv(chip)->irq_domain, offset);
+ return irq_create_mapping(gpio_to_priv(chip)->irq_domain, offset);
}
static int em_gio_irq_domain_map(struct irq_domain *h, unsigned int virq,
@@ -234,40 +233,6 @@ static struct irq_domain_ops em_gio_irq_domain_ops = {
.map = em_gio_irq_domain_map,
};
-static int __devinit em_gio_irq_domain_init(struct em_gio_priv *p)
-{
- struct platform_device *pdev = p->pdev;
- struct gpio_em_config *pdata = pdev->dev.platform_data;
-
- p->irq_base = irq_alloc_descs(pdata->irq_base, 0,
- pdata->number_of_pins, numa_node_id());
- if (p->irq_base < 0) {
- dev_err(&pdev->dev, "cannot get irq_desc\n");
- return p->irq_base;
- }
- pr_debug("gio: hw base = %d, nr = %d, sw base = %d\n",
- pdata->gpio_base, pdata->number_of_pins, p->irq_base);
-
- p->irq_domain = irq_domain_add_legacy(pdev->dev.of_node,
- pdata->number_of_pins,
- p->irq_base, 0,
- &em_gio_irq_domain_ops, p);
- if (!p->irq_domain) {
- irq_free_descs(p->irq_base, pdata->number_of_pins);
- return -ENXIO;
- }
-
- return 0;
-}
-
-static void em_gio_irq_domain_cleanup(struct em_gio_priv *p)
-{
- struct gpio_em_config *pdata = p->pdev->dev.platform_data;
-
- irq_free_descs(p->irq_base, pdata->number_of_pins);
- /* FIXME: irq domain wants to be freed! */
-}
-
static int __devinit em_gio_probe(struct platform_device *pdev)
{
struct gpio_em_config *pdata = pdev->dev.platform_data;
@@ -334,8 +299,11 @@ static int __devinit em_gio_probe(struct platform_device *pdev)
irq_chip->irq_set_type = em_gio_irq_set_type;
irq_chip->flags = IRQCHIP_SKIP_SET_WAKE;
- ret = em_gio_irq_domain_init(p);
- if (ret) {
+ p->irq_domain = irq_domain_add_linear(pdev->dev.of_node,
+ pdata->number_of_pins,
+ &em_gio_irq_domain_ops, p);
+ if (!p->irq_domain) {
+ ret = -ENXIO;
dev_err(&pdev->dev, "cannot initialize irq domain\n");
goto err3;
}
@@ -364,7 +332,7 @@ err6:
err5:
free_irq(irq[0]->start, pdev);
err4:
- em_gio_irq_domain_cleanup(p);
+ irq_domain_remove(p->irq_domain);
err3:
iounmap(p->base1);
err2:
@@ -390,7 +358,7 @@ static int __devexit em_gio_remove(struct platform_device *pdev)
free_irq(irq[1]->start, pdev);
free_irq(irq[0]->start, pdev);
- em_gio_irq_domain_cleanup(p);
+ irq_domain_remove(p->irq_domain);
iounmap(p->base1);
iounmap(p->base0);
kfree(p);
diff --git a/drivers/gpio/gpio-max730x.c b/drivers/gpio/gpio-max730x.c
index 05e2dac60b3..c4bf86abd4d 100644
--- a/drivers/gpio/gpio-max730x.c
+++ b/drivers/gpio/gpio-max730x.c
@@ -167,10 +167,6 @@ int __devinit __max730x_probe(struct max7301 *ts)
int i, ret;
pdata = dev->platform_data;
- if (!pdata || !pdata->base) {
- dev_err(dev, "incorrect or missing platform data\n");
- return -EINVAL;
- }
mutex_init(&ts->lock);
dev_set_drvdata(dev, ts);
@@ -178,7 +174,12 @@ int __devinit __max730x_probe(struct max7301 *ts)
/* Power up the chip and disable IRQ output */
ts->write(dev, 0x04, 0x01);
- ts->input_pullup_active = pdata->input_pullup_active;
+ if (pdata) {
+ ts->input_pullup_active = pdata->input_pullup_active;
+ ts->chip.base = pdata->base;
+ } else {
+ ts->chip.base = -1;
+ }
ts->chip.label = dev->driver->name;
ts->chip.direction_input = max7301_direction_input;
@@ -186,7 +187,6 @@ int __devinit __max730x_probe(struct max7301 *ts)
ts->chip.direction_output = max7301_direction_output;
ts->chip.set = max7301_set;
- ts->chip.base = pdata->base;
ts->chip.ngpio = PIN_NUMBER;
ts->chip.can_sleep = 1;
ts->chip.dev = dev;
diff --git a/drivers/gpio/gpio-mvebu.c b/drivers/gpio/gpio-mvebu.c
index be65c0451ad..a515b9294e9 100644
--- a/drivers/gpio/gpio-mvebu.c
+++ b/drivers/gpio/gpio-mvebu.c
@@ -168,12 +168,12 @@ static void __iomem *mvebu_gpioreg_level_mask(struct mvebu_gpio_chip *mvchip)
* Functions implementing the gpio_chip methods
*/
-int mvebu_gpio_request(struct gpio_chip *chip, unsigned pin)
+static int mvebu_gpio_request(struct gpio_chip *chip, unsigned pin)
{
return pinctrl_request_gpio(chip->base + pin);
}
-void mvebu_gpio_free(struct gpio_chip *chip, unsigned pin)
+static void mvebu_gpio_free(struct gpio_chip *chip, unsigned pin)
{
pinctrl_free_gpio(chip->base + pin);
}
@@ -546,6 +546,7 @@ static int __devinit mvebu_gpio_probe(struct platform_device *pdev)
mvchip->chip.label = dev_name(&pdev->dev);
mvchip->chip.dev = &pdev->dev;
mvchip->chip.request = mvebu_gpio_request;
+ mvchip->chip.free = mvebu_gpio_free;
mvchip->chip.direction_input = mvebu_gpio_direction_input;
mvchip->chip.get = mvebu_gpio_get;
mvchip->chip.direction_output = mvebu_gpio_direction_output;
@@ -673,8 +674,8 @@ static int __devinit mvebu_gpio_probe(struct platform_device *pdev)
IRQ_NOREQUEST, IRQ_LEVEL | IRQ_NOPROBE);
/* Setup irq domain on top of the generic chip. */
- mvchip->domain = irq_domain_add_legacy(np, mvchip->chip.ngpio,
- mvchip->irqbase, 0,
+ mvchip->domain = irq_domain_add_simple(np, mvchip->chip.ngpio,
+ mvchip->irqbase,
&irq_domain_simple_ops,
mvchip);
if (!mvchip->domain) {
diff --git a/drivers/gpio/gpio-omap.c b/drivers/gpio/gpio-omap.c
index d335af1d4d8..d71e5bdf7b9 100644
--- a/drivers/gpio/gpio-omap.c
+++ b/drivers/gpio/gpio-omap.c
@@ -1105,7 +1105,7 @@ static int __devinit omap_gpio_probe(struct platform_device *pdev)
if (!pdata)
return -EINVAL;
- bank = devm_kzalloc(&pdev->dev, sizeof(struct gpio_bank), GFP_KERNEL);
+ bank = devm_kzalloc(dev, sizeof(struct gpio_bank), GFP_KERNEL);
if (!bank) {
dev_err(dev, "Memory alloc failed\n");
return -ENOMEM;
diff --git a/drivers/gpio/gpio-pca953x.c b/drivers/gpio/gpio-pca953x.c
index 9c693ae1795..0c5eaf5f4c9 100644
--- a/drivers/gpio/gpio-pca953x.c
+++ b/drivers/gpio/gpio-pca953x.c
@@ -16,6 +16,7 @@
#include <linux/gpio.h>
#include <linux/interrupt.h>
#include <linux/irq.h>
+#include <linux/irqdomain.h>
#include <linux/i2c.h>
#include <linux/i2c/pca953x.h>
#include <linux/slab.h>
@@ -83,6 +84,7 @@ struct pca953x_chip {
u32 irq_trig_raise;
u32 irq_trig_fall;
int irq_base;
+ struct irq_domain *domain;
#endif
struct i2c_client *client;
@@ -333,14 +335,14 @@ static void pca953x_irq_mask(struct irq_data *d)
{
struct pca953x_chip *chip = irq_data_get_irq_chip_data(d);
- chip->irq_mask &= ~(1 << (d->irq - chip->irq_base));
+ chip->irq_mask &= ~(1 << d->hwirq);
}
static void pca953x_irq_unmask(struct irq_data *d)
{
struct pca953x_chip *chip = irq_data_get_irq_chip_data(d);
- chip->irq_mask |= 1 << (d->irq - chip->irq_base);
+ chip->irq_mask |= 1 << d->hwirq;
}
static void pca953x_irq_bus_lock(struct irq_data *d)
@@ -372,8 +374,7 @@ static void pca953x_irq_bus_sync_unlock(struct irq_data *d)
static int pca953x_irq_set_type(struct irq_data *d, unsigned int type)
{
struct pca953x_chip *chip = irq_data_get_irq_chip_data(d);
- u32 level = d->irq - chip->irq_base;
- u32 mask = 1 << level;
+ u32 mask = 1 << d->hwirq;
if (!(type & IRQ_TYPE_EDGE_BOTH)) {
dev_err(&chip->client->dev, "irq %d: unsupported type %d\n",
@@ -454,7 +455,7 @@ static irqreturn_t pca953x_irq_handler(int irq, void *devid)
do {
level = __ffs(pending);
- handle_nested_irq(level + chip->irq_base);
+ handle_nested_irq(irq_find_mapping(chip->domain, level));
pending &= ~(1 << level);
} while (pending);
@@ -499,6 +500,17 @@ static int pca953x_irq_setup(struct pca953x_chip *chip,
if (chip->irq_base < 0)
goto out_failed;
+ chip->domain = irq_domain_add_legacy(client->dev.of_node,
+ chip->gpio_chip.ngpio,
+ chip->irq_base,
+ 0,
+ &irq_domain_simple_ops,
+ NULL);
+ if (!chip->domain) {
+ ret = -ENODEV;
+ goto out_irqdesc_free;
+ }
+
for (lvl = 0; lvl < chip->gpio_chip.ngpio; lvl++) {
int irq = lvl + chip->irq_base;
@@ -521,7 +533,7 @@ static int pca953x_irq_setup(struct pca953x_chip *chip,
if (ret) {
dev_err(&client->dev, "failed to request irq %d\n",
client->irq);
- goto out_failed;
+ goto out_irqdesc_free;
}
chip->gpio_chip.to_irq = pca953x_gpio_to_irq;
@@ -529,6 +541,8 @@ static int pca953x_irq_setup(struct pca953x_chip *chip,
return 0;
+out_irqdesc_free:
+ irq_free_descs(chip->irq_base, chip->gpio_chip.ngpio);
out_failed:
chip->irq_base = -1;
return ret;
@@ -751,9 +765,38 @@ static int pca953x_remove(struct i2c_client *client)
return 0;
}
+static const struct of_device_id pca953x_dt_ids[] = {
+ { .compatible = "nxp,pca9534", },
+ { .compatible = "nxp,pca9535", },
+ { .compatible = "nxp,pca9536", },
+ { .compatible = "nxp,pca9537", },
+ { .compatible = "nxp,pca9538", },
+ { .compatible = "nxp,pca9539", },
+ { .compatible = "nxp,pca9554", },
+ { .compatible = "nxp,pca9555", },
+ { .compatible = "nxp,pca9556", },
+ { .compatible = "nxp,pca9557", },
+ { .compatible = "nxp,pca9574", },
+ { .compatible = "nxp,pca9575", },
+
+ { .compatible = "maxim,max7310", },
+ { .compatible = "maxim,max7312", },
+ { .compatible = "maxim,max7313", },
+ { .compatible = "maxim,max7315", },
+
+ { .compatible = "ti,pca6107", },
+ { .compatible = "ti,tca6408", },
+ { .compatible = "ti,tca6416", },
+ { .compatible = "ti,tca6424", },
+ { }
+};
+
+MODULE_DEVICE_TABLE(of, pca953x_dt_ids);
+
static struct i2c_driver pca953x_driver = {
.driver = {
.name = "pca953x",
+ .of_match_table = pca953x_dt_ids,
},
.probe = pca953x_probe,
.remove = pca953x_remove,
diff --git a/drivers/gpio/gpio-pch.c b/drivers/gpio/gpio-pch.c
index 4ad0c4f9171..e3a14fef79e 100644
--- a/drivers/gpio/gpio-pch.c
+++ b/drivers/gpio/gpio-pch.c
@@ -215,6 +215,7 @@ static void pch_gpio_setup(struct pch_gpio *chip)
struct gpio_chip *gpio = &chip->gpio;
gpio->label = dev_name(chip->dev);
+ gpio->dev = chip->dev;
gpio->owner = THIS_MODULE;
gpio->direction_input = pch_gpio_direction_input;
gpio->get = pch_gpio_get;
diff --git a/drivers/gpio/gpio-pl061.c b/drivers/gpio/gpio-pl061.c
index b4b5da4fd2c..31d9c9e79ea 100644
--- a/drivers/gpio/gpio-pl061.c
+++ b/drivers/gpio/gpio-pl061.c
@@ -216,39 +216,34 @@ static void __init pl061_init_gc(struct pl061_gpio *chip, int irq_base)
IRQ_GC_INIT_NESTED_LOCK, IRQ_NOREQUEST, 0);
}
-static int pl061_probe(struct amba_device *dev, const struct amba_id *id)
+static int pl061_probe(struct amba_device *adev, const struct amba_id *id)
{
- struct pl061_platform_data *pdata;
+ struct device *dev = &adev->dev;
+ struct pl061_platform_data *pdata = dev->platform_data;
struct pl061_gpio *chip;
int ret, irq, i;
- chip = kzalloc(sizeof(*chip), GFP_KERNEL);
+ chip = devm_kzalloc(dev, sizeof(*chip), GFP_KERNEL);
if (chip == NULL)
return -ENOMEM;
- pdata = dev->dev.platform_data;
if (pdata) {
chip->gc.base = pdata->gpio_base;
chip->irq_base = pdata->irq_base;
- } else if (dev->dev.of_node) {
+ } else if (adev->dev.of_node) {
chip->gc.base = -1;
chip->irq_base = 0;
- } else {
- ret = -ENODEV;
- goto free_mem;
- }
+ } else
+ return -ENODEV;
- if (!request_mem_region(dev->res.start,
- resource_size(&dev->res), "pl061")) {
- ret = -EBUSY;
- goto free_mem;
- }
+ if (!devm_request_mem_region(dev, adev->res.start,
+ resource_size(&adev->res), "pl061"))
+ return -EBUSY;
- chip->base = ioremap(dev->res.start, resource_size(&dev->res));
- if (chip->base == NULL) {
- ret = -ENOMEM;
- goto release_region;
- }
+ chip->base = devm_ioremap(dev, adev->res.start,
+ resource_size(&adev->res));
+ if (chip->base == NULL)
+ return -ENOMEM;
spin_lock_init(&chip->lock);
@@ -258,13 +253,13 @@ static int pl061_probe(struct amba_device *dev, const struct amba_id *id)
chip->gc.set = pl061_set_value;
chip->gc.to_irq = pl061_to_irq;
chip->gc.ngpio = PL061_GPIO_NR;
- chip->gc.label = dev_name(&dev->dev);
- chip->gc.dev = &dev->dev;
+ chip->gc.label = dev_name(dev);
+ chip->gc.dev = dev;
chip->gc.owner = THIS_MODULE;
ret = gpiochip_add(&chip->gc);
if (ret)
- goto iounmap;
+ return ret;
/*
* irq_chip support
@@ -276,11 +271,10 @@ static int pl061_probe(struct amba_device *dev, const struct amba_id *id)
pl061_init_gc(chip, chip->irq_base);
writeb(0, chip->base + GPIOIE); /* disable irqs */
- irq = dev->irq[0];
- if (irq < 0) {
- ret = -ENODEV;
- goto iounmap;
- }
+ irq = adev->irq[0];
+ if (irq < 0)
+ return -ENODEV;
+
irq_set_chained_handler(irq, pl061_irq_handler);
irq_set_handler_data(irq, chip);
@@ -294,18 +288,9 @@ static int pl061_probe(struct amba_device *dev, const struct amba_id *id)
}
}
- amba_set_drvdata(dev, chip);
+ amba_set_drvdata(adev, chip);
return 0;
-
-iounmap:
- iounmap(chip->base);
-release_region:
- release_mem_region(dev->res.start, resource_size(&dev->res));
-free_mem:
- kfree(chip);
-
- return ret;
}
#ifdef CONFIG_PM
diff --git a/drivers/gpio/gpio-spear-spics.c b/drivers/gpio/gpio-spear-spics.c
new file mode 100644
index 00000000000..5f45fc4ed5d
--- /dev/null
+++ b/drivers/gpio/gpio-spear-spics.c
@@ -0,0 +1,217 @@
+/*
+ * SPEAr platform SPI chipselect abstraction over gpiolib
+ *
+ * Copyright (C) 2012 ST Microelectronics
+ * Shiraz Hashim <shiraz.hashim@st.com>
+ *
+ * This file is licensed under the terms of the GNU General Public
+ * License version 2. This program is licensed "as is" without any
+ * warranty of any kind, whether express or implied.
+ */
+
+#include <linux/err.h>
+#include <linux/gpio.h>
+#include <linux/io.h>
+#include <linux/module.h>
+#include <linux/of.h>
+#include <linux/platform_device.h>
+#include <linux/types.h>
+
+/* maximum chipselects */
+#define NUM_OF_GPIO 4
+
+/*
+ * Provision is available on some SPEAr SoCs to control ARM PL022 spi cs
+ * through system registers. This register lies outside spi (pl022)
+ * address space into system registers.
+ *
+ * It provides control for spi chip select lines so that any chipselect
+ * (out of 4 possible chipselects in pl022) can be made low to select
+ * the particular slave.
+ */
+
+/**
+ * struct spear_spics - represents spi chip select control
+ * @base: base address
+ * @perip_cfg: configuration register
+ * @sw_enable_bit: bit to enable s/w control over chipselects
+ * @cs_value_bit: bit to program high or low chipselect
+ * @cs_enable_mask: mask to select bits required to select chipselect
+ * @cs_enable_shift: bit pos of cs_enable_mask
+ * @use_count: use count of a spi controller cs lines
+ * @last_off: stores last offset caller of set_value()
+ * @chip: gpio_chip abstraction
+ */
+struct spear_spics {
+ void __iomem *base;
+ u32 perip_cfg;
+ u32 sw_enable_bit;
+ u32 cs_value_bit;
+ u32 cs_enable_mask;
+ u32 cs_enable_shift;
+ unsigned long use_count;
+ int last_off;
+ struct gpio_chip chip;
+};
+
+/* gpio framework specific routines */
+static int spics_get_value(struct gpio_chip *chip, unsigned offset)
+{
+ return -ENXIO;
+}
+
+static void spics_set_value(struct gpio_chip *chip, unsigned offset, int value)
+{
+ struct spear_spics *spics = container_of(chip, struct spear_spics,
+ chip);
+ u32 tmp;
+
+ /* select chip select from register */
+ tmp = readl_relaxed(spics->base + spics->perip_cfg);
+ if (spics->last_off != offset) {
+ spics->last_off = offset;
+ tmp &= ~(spics->cs_enable_mask << spics->cs_enable_shift);
+ tmp |= offset << spics->cs_enable_shift;
+ }
+
+ /* toggle chip select line */
+ tmp &= ~(0x1 << spics->cs_value_bit);
+ tmp |= value << spics->cs_value_bit;
+ writel_relaxed(tmp, spics->base + spics->perip_cfg);
+}
+
+static int spics_direction_input(struct gpio_chip *chip, unsigned offset)
+{
+ return -ENXIO;
+}
+
+static int spics_direction_output(struct gpio_chip *chip, unsigned offset,
+ int value)
+{
+ spics_set_value(chip, offset, value);
+ return 0;
+}
+
+static int spics_request(struct gpio_chip *chip, unsigned offset)
+{
+ struct spear_spics *spics = container_of(chip, struct spear_spics,
+ chip);
+ u32 tmp;
+
+ if (!spics->use_count++) {
+ tmp = readl_relaxed(spics->base + spics->perip_cfg);
+ tmp |= 0x1 << spics->sw_enable_bit;
+ tmp |= 0x1 << spics->cs_value_bit;
+ writel_relaxed(tmp, spics->base + spics->perip_cfg);
+ }
+
+ return 0;
+}
+
+static void spics_free(struct gpio_chip *chip, unsigned offset)
+{
+ struct spear_spics *spics = container_of(chip, struct spear_spics,
+ chip);
+ u32 tmp;
+
+ if (!--spics->use_count) {
+ tmp = readl_relaxed(spics->base + spics->perip_cfg);
+ tmp &= ~(0x1 << spics->sw_enable_bit);
+ writel_relaxed(tmp, spics->base + spics->perip_cfg);
+ }
+}
+
+static int spics_gpio_probe(struct platform_device *pdev)
+{
+ struct device_node *np = pdev->dev.of_node;
+ struct spear_spics *spics;
+ struct resource *res;
+ int ret;
+
+ res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+ if (!res) {
+ dev_err(&pdev->dev, "invalid IORESOURCE_MEM\n");
+ return -EBUSY;
+ }
+
+ spics = devm_kzalloc(&pdev->dev, sizeof(*spics), GFP_KERNEL);
+ if (!spics) {
+ dev_err(&pdev->dev, "memory allocation fail\n");
+ return -ENOMEM;
+ }
+
+ spics->base = devm_request_and_ioremap(&pdev->dev, res);
+ if (!spics->base) {
+ dev_err(&pdev->dev, "request and ioremap fail\n");
+ return -ENOMEM;
+ }
+
+ if (of_property_read_u32(np, "st-spics,peripcfg-reg",
+ &spics->perip_cfg))
+ goto err_dt_data;
+ if (of_property_read_u32(np, "st-spics,sw-enable-bit",
+ &spics->sw_enable_bit))
+ goto err_dt_data;
+ if (of_property_read_u32(np, "st-spics,cs-value-bit",
+ &spics->cs_value_bit))
+ goto err_dt_data;
+ if (of_property_read_u32(np, "st-spics,cs-enable-mask",
+ &spics->cs_enable_mask))
+ goto err_dt_data;
+ if (of_property_read_u32(np, "st-spics,cs-enable-shift",
+ &spics->cs_enable_shift))
+ goto err_dt_data;
+
+ platform_set_drvdata(pdev, spics);
+
+ spics->chip.ngpio = NUM_OF_GPIO;
+ spics->chip.base = -1;
+ spics->chip.request = spics_request;
+ spics->chip.free = spics_free;
+ spics->chip.direction_input = spics_direction_input;
+ spics->chip.direction_output = spics_direction_output;
+ spics->chip.get = spics_get_value;
+ spics->chip.set = spics_set_value;
+ spics->chip.label = dev_name(&pdev->dev);
+ spics->chip.dev = &pdev->dev;
+ spics->chip.owner = THIS_MODULE;
+ spics->last_off = -1;
+
+ ret = gpiochip_add(&spics->chip);
+ if (ret) {
+ dev_err(&pdev->dev, "unable to add gpio chip\n");
+ return ret;
+ }
+
+ dev_info(&pdev->dev, "spear spics registered\n");
+ return 0;
+
+err_dt_data:
+ dev_err(&pdev->dev, "DT probe failed\n");
+ return -EINVAL;
+}
+
+static const struct of_device_id spics_gpio_of_match[] = {
+ { .compatible = "st,spear-spics-gpio" },
+ {}
+};
+MODULE_DEVICE_TABLE(of, spics_gpio_of_match);
+
+static struct platform_driver spics_gpio_driver = {
+ .probe = spics_gpio_probe,
+ .driver = {
+ .owner = THIS_MODULE,
+ .name = "spear-spics-gpio",
+ .of_match_table = spics_gpio_of_match,
+ },
+};
+
+static int __init spics_gpio_init(void)
+{
+ return platform_driver_register(&spics_gpio_driver);
+}
+subsys_initcall(spics_gpio_init);
+
+MODULE_AUTHOR("Shiraz Hashim <shiraz.hashim@st.com>");
+MODULE_DESCRIPTION("ST Microlectronics SPEAr SPI Chip Select Abstraction");
+MODULE_LICENSE("GPL");
diff --git a/drivers/gpio/gpio-tc3589x.c b/drivers/gpio/gpio-tc3589x.c
index 1e48317e70f..8c8447c7d2a 100644
--- a/drivers/gpio/gpio-tc3589x.c
+++ b/drivers/gpio/gpio-tc3589x.c
@@ -292,17 +292,15 @@ static int tc3589x_gpio_irq_init(struct tc3589x_gpio *tc3589x_gpio,
{
int base = tc3589x_gpio->irq_base;
- if (base) {
- tc3589x_gpio->domain = irq_domain_add_legacy(
- NULL, tc3589x_gpio->chip.ngpio, base,
- 0, &tc3589x_irq_ops, tc3589x_gpio);
- }
- else {
- tc3589x_gpio->domain = irq_domain_add_linear(
- np, tc3589x_gpio->chip.ngpio,
- &tc3589x_irq_ops, tc3589x_gpio);
- }
-
+ /*
+ * If this results in a linear domain, irq_create_mapping() will
+ * take care of allocating IRQ descriptors at runtime. When a base
+ * is provided, the IRQ descriptors will be allocated when the
+ * domain is instantiated.
+ */
+ tc3589x_gpio->domain = irq_domain_add_simple(np,
+ tc3589x_gpio->chip.ngpio, base, &tc3589x_irq_ops,
+ tc3589x_gpio);
if (!tc3589x_gpio->domain) {
dev_err(tc3589x_gpio->dev, "Failed to create irqdomain\n");
return -ENOSYS;
diff --git a/drivers/gpio/gpio-tegra.c b/drivers/gpio/gpio-tegra.c
index d982593d756..5389be8c2b5 100644
--- a/drivers/gpio/gpio-tegra.c
+++ b/drivers/gpio/gpio-tegra.c
@@ -27,6 +27,7 @@
#include <linux/module.h>
#include <linux/irqdomain.h>
#include <linux/pinctrl/consumer.h>
+#include <linux/pm.h>
#include <asm/mach/irq.h>
@@ -64,7 +65,7 @@ struct tegra_gpio_bank {
int bank;
int irq;
spinlock_t lvl_lock[4];
-#ifdef CONFIG_PM
+#ifdef CONFIG_PM_SLEEP
u32 cnf[4];
u32 out[4];
u32 oe[4];
@@ -109,20 +110,18 @@ static void tegra_gpio_enable(int gpio)
{
tegra_gpio_mask_write(GPIO_MSK_CNF(gpio), gpio, 1);
}
-EXPORT_SYMBOL_GPL(tegra_gpio_enable);
static void tegra_gpio_disable(int gpio)
{
tegra_gpio_mask_write(GPIO_MSK_CNF(gpio), gpio, 0);
}
-EXPORT_SYMBOL_GPL(tegra_gpio_disable);
-int tegra_gpio_request(struct gpio_chip *chip, unsigned offset)
+static int tegra_gpio_request(struct gpio_chip *chip, unsigned offset)
{
return pinctrl_request_gpio(offset);
}
-void tegra_gpio_free(struct gpio_chip *chip, unsigned offset)
+static void tegra_gpio_free(struct gpio_chip *chip, unsigned offset)
{
pinctrl_free_gpio(offset);
tegra_gpio_disable(offset);
@@ -135,6 +134,11 @@ static void tegra_gpio_set(struct gpio_chip *chip, unsigned offset, int value)
static int tegra_gpio_get(struct gpio_chip *chip, unsigned offset)
{
+ /* If gpio is in output mode then read from the out value */
+ if ((tegra_gpio_readl(GPIO_OE(offset)) >> GPIO_BIT(offset)) & 1)
+ return (tegra_gpio_readl(GPIO_OUT(offset)) >>
+ GPIO_BIT(offset)) & 0x1;
+
return (tegra_gpio_readl(GPIO_IN(offset)) >> GPIO_BIT(offset)) & 0x1;
}
@@ -285,8 +289,8 @@ static void tegra_gpio_irq_handler(unsigned int irq, struct irq_desc *desc)
}
-#ifdef CONFIG_PM
-void tegra_gpio_resume(void)
+#ifdef CONFIG_PM_SLEEP
+static int tegra_gpio_resume(struct device *dev)
{
unsigned long flags;
int b;
@@ -308,9 +312,10 @@ void tegra_gpio_resume(void)
}
local_irq_restore(flags);
+ return 0;
}
-void tegra_gpio_suspend(void)
+static int tegra_gpio_suspend(struct device *dev)
{
unsigned long flags;
int b;
@@ -330,6 +335,7 @@ void tegra_gpio_suspend(void)
}
}
local_irq_restore(flags);
+ return 0;
}
static int tegra_gpio_wake_enable(struct irq_data *d, unsigned int enable)
@@ -345,11 +351,15 @@ static struct irq_chip tegra_gpio_irq_chip = {
.irq_mask = tegra_gpio_irq_mask,
.irq_unmask = tegra_gpio_irq_unmask,
.irq_set_type = tegra_gpio_irq_set_type,
-#ifdef CONFIG_PM
+#ifdef CONFIG_PM_SLEEP
.irq_set_wake = tegra_gpio_wake_enable,
#endif
};
+static const struct dev_pm_ops tegra_gpio_pm_ops = {
+ SET_SYSTEM_SLEEP_PM_OPS(tegra_gpio_suspend, tegra_gpio_resume)
+};
+
struct tegra_gpio_soc_config {
u32 bank_stride;
u32 upper_offset;
@@ -380,7 +390,6 @@ static int __devinit tegra_gpio_probe(struct platform_device *pdev)
{
const struct of_device_id *match;
struct tegra_gpio_soc_config *config;
- int irq_base;
struct resource *res;
struct tegra_gpio_bank *bank;
int gpio;
@@ -417,14 +426,11 @@ static int __devinit tegra_gpio_probe(struct platform_device *pdev)
return -ENODEV;
}
- irq_base = irq_alloc_descs(-1, 0, tegra_gpio_chip.ngpio, 0);
- if (irq_base < 0) {
- dev_err(&pdev->dev, "Couldn't allocate IRQ numbers\n");
- return -ENODEV;
- }
- irq_domain = irq_domain_add_legacy(pdev->dev.of_node,
- tegra_gpio_chip.ngpio, irq_base, 0,
+ irq_domain = irq_domain_add_linear(pdev->dev.of_node,
+ tegra_gpio_chip.ngpio,
&irq_domain_simple_ops, NULL);
+ if (!irq_domain)
+ return -ENODEV;
for (i = 0; i < tegra_gpio_bank_count; i++) {
res = platform_get_resource(pdev, IORESOURCE_IRQ, i);
@@ -464,7 +470,7 @@ static int __devinit tegra_gpio_probe(struct platform_device *pdev)
gpiochip_add(&tegra_gpio_chip);
for (gpio = 0; gpio < tegra_gpio_chip.ngpio; gpio++) {
- int irq = irq_find_mapping(irq_domain, gpio);
+ int irq = irq_create_mapping(irq_domain, gpio);
/* No validity check; all Tegra GPIOs are valid IRQs */
bank = &tegra_gpio_banks[GPIO_BANK(gpio)];
@@ -493,6 +499,7 @@ static struct platform_driver tegra_gpio_driver = {
.driver = {
.name = "tegra-gpio",
.owner = THIS_MODULE,
+ .pm = &tegra_gpio_pm_ops,
.of_match_table = tegra_gpio_of_match,
},
.probe = tegra_gpio_probe,
diff --git a/drivers/gpio/gpio-twl4030.c b/drivers/gpio/gpio-twl4030.c
index c5f8ca233e1..d2138b0fd4c 100644
--- a/drivers/gpio/gpio-twl4030.c
+++ b/drivers/gpio/gpio-twl4030.c
@@ -88,11 +88,15 @@ static inline int gpio_twl4030_write(u8 address, u8 data)
/*----------------------------------------------------------------------*/
/*
- * LED register offsets (use TWL4030_MODULE_{LED,PWMA,PWMB}))
+ * LED register offsets from TWL_MODULE_LED base
* PWMs A and B are dedicated to LEDs A and B, respectively.
*/
-#define TWL4030_LED_LEDEN 0x0
+#define TWL4030_LED_LEDEN_REG 0x00
+#define TWL4030_PWMAON_REG 0x01
+#define TWL4030_PWMAOFF_REG 0x02
+#define TWL4030_PWMBON_REG 0x03
+#define TWL4030_PWMBOFF_REG 0x04
/* LEDEN bits */
#define LEDEN_LEDAON BIT(0)
@@ -104,9 +108,6 @@ static inline int gpio_twl4030_write(u8 address, u8 data)
#define LEDEN_PWM_LENGTHA BIT(6)
#define LEDEN_PWM_LENGTHB BIT(7)
-#define TWL4030_PWMx_PWMxON 0x0
-#define TWL4030_PWMx_PWMxOFF 0x1
-
#define PWMxON_LENGTH BIT(7)
/*----------------------------------------------------------------------*/
@@ -145,7 +146,7 @@ static void twl4030_led_set_value(int led, int value)
else
cached_leden |= mask;
status = twl_i2c_write_u8(TWL4030_MODULE_LED, cached_leden,
- TWL4030_LED_LEDEN);
+ TWL4030_LED_LEDEN_REG);
mutex_unlock(&gpio_lock);
}
@@ -216,33 +217,33 @@ static int twl_request(struct gpio_chip *chip, unsigned offset)
if (offset >= TWL4030_GPIO_MAX) {
u8 ledclr_mask = LEDEN_LEDAON | LEDEN_LEDAEXT
| LEDEN_LEDAPWM | LEDEN_PWM_LENGTHA;
- u8 module = TWL4030_MODULE_PWMA;
+ u8 reg = TWL4030_PWMAON_REG;
offset -= TWL4030_GPIO_MAX;
if (offset) {
ledclr_mask <<= 1;
- module = TWL4030_MODULE_PWMB;
+ reg = TWL4030_PWMBON_REG;
}
/* initialize PWM to always-drive */
- status = twl_i2c_write_u8(module, 0x7f,
- TWL4030_PWMx_PWMxOFF);
+ /* Configure PWM OFF register first */
+ status = twl_i2c_write_u8(TWL4030_MODULE_LED, 0x7f, reg + 1);
if (status < 0)
goto done;
- status = twl_i2c_write_u8(module, 0x7f,
- TWL4030_PWMx_PWMxON);
+
+ /* Followed by PWM ON register */
+ status = twl_i2c_write_u8(TWL4030_MODULE_LED, 0x7f, reg);
if (status < 0)
goto done;
/* init LED to not-driven (high) */
- module = TWL4030_MODULE_LED;
- status = twl_i2c_read_u8(module, &cached_leden,
- TWL4030_LED_LEDEN);
+ status = twl_i2c_read_u8(TWL4030_MODULE_LED, &cached_leden,
+ TWL4030_LED_LEDEN_REG);
if (status < 0)
goto done;
cached_leden &= ~ledclr_mask;
- status = twl_i2c_write_u8(module, cached_leden,
- TWL4030_LED_LEDEN);
+ status = twl_i2c_write_u8(TWL4030_MODULE_LED, cached_leden,
+ TWL4030_LED_LEDEN_REG);
if (status < 0)
goto done;
diff --git a/drivers/gpio/gpio-vt8500.c b/drivers/gpio/gpio-vt8500.c
index bcd8e4aa7c7..9ed2a2b347f 100644
--- a/drivers/gpio/gpio-vt8500.c
+++ b/drivers/gpio/gpio-vt8500.c
@@ -96,6 +96,7 @@ static struct vt8500_gpio_data wm8505_data = {
VT8500_BANK(0x5C, 0x84, 0xAC, 0xD4, 12),
VT8500_BANK(0x60, 0x88, 0xB0, 0xD8, 16),
VT8500_BANK(0x64, 0x8C, 0xB4, 0xDC, 22),
+ VT8500_BANK(0x500, 0x504, 0x508, 0x50C, 6),
},
};
@@ -115,6 +116,7 @@ static struct vt8500_gpio_data wm8650_data = {
VT8500_BANK(0x58, 0x98, 0xD8, 0x18, 32),
VT8500_BANK(0x5C, 0x9C, 0xDC, 0x1C, 32),
VT8500_BANK(0x7C, 0xBC, 0xFC, 0x3C, 32),
+ VT8500_BANK(0x500, 0x504, 0x508, 0x50C, 6),
},
};
diff --git a/drivers/gpio/gpiolib-of.c b/drivers/gpio/gpiolib-of.c
index f1a45997aea..a40cd84c5c1 100644
--- a/drivers/gpio/gpiolib-of.c
+++ b/drivers/gpio/gpiolib-of.c
@@ -19,6 +19,7 @@
#include <linux/of.h>
#include <linux/of_address.h>
#include <linux/of_gpio.h>
+#include <linux/pinctrl/pinctrl.h>
#include <linux/slab.h>
/* Private data structure for of_gpiochip_find_and_xlate */
@@ -216,6 +217,42 @@ err0:
}
EXPORT_SYMBOL(of_mm_gpiochip_add);
+#ifdef CONFIG_PINCTRL
+static void of_gpiochip_add_pin_range(struct gpio_chip *chip)
+{
+ struct device_node *np = chip->of_node;
+ struct of_phandle_args pinspec;
+ struct pinctrl_dev *pctldev;
+ int index = 0, ret;
+
+ if (!np)
+ return;
+
+ do {
+ ret = of_parse_phandle_with_args(np, "gpio-ranges",
+ "#gpio-range-cells", index, &pinspec);
+ if (ret)
+ break;
+
+ pctldev = of_pinctrl_get(pinspec.np);
+ if (!pctldev)
+ break;
+
+ ret = gpiochip_add_pin_range(chip,
+ pinctrl_dev_get_name(pctldev),
+ pinspec.args[0],
+ pinspec.args[1]);
+
+ if (ret)
+ break;
+
+ } while (index++);
+}
+
+#else
+static void of_gpiochip_add_pin_range(struct gpio_chip *chip) {}
+#endif
+
void of_gpiochip_add(struct gpio_chip *chip)
{
if ((!chip->of_node) && (chip->dev))
@@ -229,11 +266,14 @@ void of_gpiochip_add(struct gpio_chip *chip)
chip->of_xlate = of_gpio_simple_xlate;
}
+ of_gpiochip_add_pin_range(chip);
of_node_get(chip->of_node);
}
void of_gpiochip_remove(struct gpio_chip *chip)
{
+ gpiochip_remove_pin_ranges(chip);
+
if (chip->of_node)
of_node_put(chip->of_node);
}
diff --git a/drivers/gpio/gpiolib.c b/drivers/gpio/gpiolib.c
index 1c8d9e3380e..b667f768c23 100644
--- a/drivers/gpio/gpiolib.c
+++ b/drivers/gpio/gpiolib.c
@@ -191,6 +191,32 @@ err:
return ret;
}
+/* caller ensures gpio is valid and requested, chip->get_direction may sleep */
+static int gpio_get_direction(unsigned gpio)
+{
+ struct gpio_chip *chip;
+ struct gpio_desc *desc = &gpio_desc[gpio];
+ int status = -EINVAL;
+
+ chip = gpio_to_chip(gpio);
+ gpio -= chip->base;
+
+ if (!chip->get_direction)
+ return status;
+
+ status = chip->get_direction(chip, gpio);
+ if (status > 0) {
+ /* GPIOF_DIR_IN, or other positive */
+ status = 1;
+ clear_bit(FLAG_IS_OUT, &desc->flags);
+ }
+ if (status == 0) {
+ /* GPIOF_DIR_OUT */
+ set_bit(FLAG_IS_OUT, &desc->flags);
+ }
+ return status;
+}
+
#ifdef CONFIG_GPIO_SYSFS
/* lock protects against unexport_gpio() being called while
@@ -223,6 +249,7 @@ static ssize_t gpio_direction_show(struct device *dev,
struct device_attribute *attr, char *buf)
{
const struct gpio_desc *desc = dev_get_drvdata(dev);
+ unsigned gpio = desc - gpio_desc;
ssize_t status;
mutex_lock(&sysfs_lock);
@@ -230,6 +257,7 @@ static ssize_t gpio_direction_show(struct device *dev,
if (!test_bit(FLAG_EXPORT, &desc->flags))
status = -EIO;
else
+ gpio_get_direction(gpio);
status = sprintf(buf, "%s\n",
test_bit(FLAG_IS_OUT, &desc->flags)
? "out" : "in");
@@ -704,8 +732,9 @@ int gpio_export(unsigned gpio, bool direction_may_change)
{
unsigned long flags;
struct gpio_desc *desc;
- int status = -EINVAL;
+ int status;
const char *ioname = NULL;
+ struct device *dev;
/* can't export until sysfs is available ... */
if (!gpio_class.p) {
@@ -713,59 +742,66 @@ int gpio_export(unsigned gpio, bool direction_may_change)
return -ENOENT;
}
- if (!gpio_is_valid(gpio))
- goto done;
+ if (!gpio_is_valid(gpio)) {
+ pr_debug("%s: gpio %d is not valid\n", __func__, gpio);
+ return -EINVAL;
+ }
mutex_lock(&sysfs_lock);
spin_lock_irqsave(&gpio_lock, flags);
desc = &gpio_desc[gpio];
- if (test_bit(FLAG_REQUESTED, &desc->flags)
- && !test_bit(FLAG_EXPORT, &desc->flags)) {
- status = 0;
- if (!desc->chip->direction_input
- || !desc->chip->direction_output)
- direction_may_change = false;
+ if (!test_bit(FLAG_REQUESTED, &desc->flags) ||
+ test_bit(FLAG_EXPORT, &desc->flags)) {
+ spin_unlock_irqrestore(&gpio_lock, flags);
+ pr_debug("%s: gpio %d unavailable (requested=%d, exported=%d)\n",
+ __func__, gpio,
+ test_bit(FLAG_REQUESTED, &desc->flags),
+ test_bit(FLAG_EXPORT, &desc->flags));
+ status = -EPERM;
+ goto fail_unlock;
}
+
+ if (!desc->chip->direction_input || !desc->chip->direction_output)
+ direction_may_change = false;
spin_unlock_irqrestore(&gpio_lock, flags);
if (desc->chip->names && desc->chip->names[gpio - desc->chip->base])
ioname = desc->chip->names[gpio - desc->chip->base];
- if (status == 0) {
- struct device *dev;
-
- dev = device_create(&gpio_class, desc->chip->dev, MKDEV(0, 0),
- desc, ioname ? ioname : "gpio%u", gpio);
- if (!IS_ERR(dev)) {
- status = sysfs_create_group(&dev->kobj,
- &gpio_attr_group);
-
- if (!status && direction_may_change)
- status = device_create_file(dev,
- &dev_attr_direction);
-
- if (!status && gpio_to_irq(gpio) >= 0
- && (direction_may_change
- || !test_bit(FLAG_IS_OUT,
- &desc->flags)))
- status = device_create_file(dev,
- &dev_attr_edge);
-
- if (status != 0)
- device_unregister(dev);
- } else
- status = PTR_ERR(dev);
- if (status == 0)
- set_bit(FLAG_EXPORT, &desc->flags);
+ dev = device_create(&gpio_class, desc->chip->dev, MKDEV(0, 0),
+ desc, ioname ? ioname : "gpio%u", gpio);
+ if (IS_ERR(dev)) {
+ status = PTR_ERR(dev);
+ goto fail_unlock;
}
- mutex_unlock(&sysfs_lock);
-
-done:
+ status = sysfs_create_group(&dev->kobj, &gpio_attr_group);
if (status)
- pr_debug("%s: gpio%d status %d\n", __func__, gpio, status);
+ goto fail_unregister_device;
+ if (direction_may_change) {
+ status = device_create_file(dev, &dev_attr_direction);
+ if (status)
+ goto fail_unregister_device;
+ }
+
+ if (gpio_to_irq(gpio) >= 0 && (direction_may_change ||
+ !test_bit(FLAG_IS_OUT, &desc->flags))) {
+ status = device_create_file(dev, &dev_attr_edge);
+ if (status)
+ goto fail_unregister_device;
+ }
+
+ set_bit(FLAG_EXPORT, &desc->flags);
+ mutex_unlock(&sysfs_lock);
+ return 0;
+
+fail_unregister_device:
+ device_unregister(dev);
+fail_unlock:
+ mutex_unlock(&sysfs_lock);
+ pr_debug("%s: gpio%d status %d\n", __func__, gpio, status);
return status;
}
EXPORT_SYMBOL_GPL(gpio_export);
@@ -1075,6 +1111,7 @@ int gpiochip_add(struct gpio_chip *chip)
* inputs (often with pullups enabled) so power
* usage is minimized. Linux code should set the
* gpio direction first thing; but until it does,
+ * and in case chip->get_direction is not set,
* we may expose the wrong direction in sysfs.
*/
gpio_desc[id].flags = !chip->direction_input
@@ -1083,6 +1120,10 @@ int gpiochip_add(struct gpio_chip *chip)
}
}
+#ifdef CONFIG_PINCTRL
+ INIT_LIST_HEAD(&chip->pin_ranges);
+#endif
+
of_gpiochip_add(chip);
unlock:
@@ -1123,6 +1164,7 @@ int gpiochip_remove(struct gpio_chip *chip)
spin_lock_irqsave(&gpio_lock, flags);
+ gpiochip_remove_pin_ranges(chip);
of_gpiochip_remove(chip);
for (id = chip->base; id < chip->base + chip->ngpio; id++) {
@@ -1180,6 +1222,47 @@ struct gpio_chip *gpiochip_find(void *data,
}
EXPORT_SYMBOL_GPL(gpiochip_find);
+#ifdef CONFIG_PINCTRL
+
+int gpiochip_add_pin_range(struct gpio_chip *chip, const char *pinctl_name,
+ unsigned int pin_base, unsigned int npins)
+{
+ struct gpio_pin_range *pin_range;
+
+ pin_range = devm_kzalloc(chip->dev, sizeof(*pin_range), GFP_KERNEL);
+ if (!pin_range) {
+ pr_err("%s: GPIO chip: failed to allocate pin ranges\n",
+ chip->label);
+ return -ENOMEM;
+ }
+
+ pin_range->range.name = chip->label;
+ pin_range->range.base = chip->base;
+ pin_range->range.pin_base = pin_base;
+ pin_range->range.npins = npins;
+ pin_range->pctldev = find_pinctrl_and_add_gpio_range(pinctl_name,
+ &pin_range->range);
+
+ list_add_tail(&pin_range->node, &chip->pin_ranges);
+
+ return 0;
+}
+EXPORT_SYMBOL_GPL(gpiochip_add_pin_range);
+
+void gpiochip_remove_pin_ranges(struct gpio_chip *chip)
+{
+ struct gpio_pin_range *pin_range, *tmp;
+
+ list_for_each_entry_safe(pin_range, tmp, &chip->pin_ranges, node) {
+ list_del(&pin_range->node);
+ pinctrl_remove_gpio_range(pin_range->pctldev,
+ &pin_range->range);
+ }
+}
+EXPORT_SYMBOL_GPL(gpiochip_remove_pin_ranges);
+
+#endif /* CONFIG_PINCTRL */
+
/* These "optional" allocation calls help prevent drivers from stomping
* on each other, and help provide better diagnostics in debugfs.
* They're called even less than the "set direction" calls.
@@ -1228,9 +1311,15 @@ int gpio_request(unsigned gpio, const char *label)
desc_set_label(desc, NULL);
module_put(chip->owner);
clear_bit(FLAG_REQUESTED, &desc->flags);
+ goto done;
}
}
-
+ if (chip->get_direction) {
+ /* chip->get_direction may sleep */
+ spin_unlock_irqrestore(&gpio_lock, flags);
+ gpio_get_direction(gpio);
+ spin_lock_irqsave(&gpio_lock, flags);
+ }
done:
if (status)
pr_debug("gpio_request: gpio-%d (%s) status %d\n",
@@ -1766,6 +1855,7 @@ static void gpiolib_dbg_show(struct seq_file *s, struct gpio_chip *chip)
if (!test_bit(FLAG_REQUESTED, &gdesc->flags))
continue;
+ gpio_get_direction(gpio);
is_out = test_bit(FLAG_IS_OUT, &gdesc->flags);
seq_printf(s, " gpio-%-3d (%-20.20s) %s %s",
gpio, gdesc->label,
diff --git a/drivers/irqchip/Makefile b/drivers/irqchip/Makefile
index 054321db435..bf7b43696cd 100644
--- a/drivers/irqchip/Makefile
+++ b/drivers/irqchip/Makefile
@@ -1 +1,2 @@
-obj-$(CONFIG_ARCH_BCM2835) += irq-bcm2835.o
+obj-$(CONFIG_ARCH_BCM2835) += irq-bcm2835.o
+obj-$(CONFIG_ARCH_SPEAR3XX) += spear-shirq.o
diff --git a/drivers/irqchip/spear-shirq.c b/drivers/irqchip/spear-shirq.c
new file mode 100644
index 00000000000..80e1d2fd9d4
--- /dev/null
+++ b/drivers/irqchip/spear-shirq.c
@@ -0,0 +1,316 @@
+/*
+ * SPEAr platform shared irq layer source file
+ *
+ * Copyright (C) 2009-2012 ST Microelectronics
+ * Viresh Kumar <viresh.linux@gmail.com>
+ *
+ * Copyright (C) 2012 ST Microelectronics
+ * Shiraz Hashim <shiraz.hashim@st.com>
+ *
+ * This file is licensed under the terms of the GNU General Public
+ * License version 2. This program is licensed "as is" without any
+ * warranty of any kind, whether express or implied.
+ */
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
+#include <linux/err.h>
+#include <linux/export.h>
+#include <linux/interrupt.h>
+#include <linux/io.h>
+#include <linux/irq.h>
+#include <linux/irqdomain.h>
+#include <linux/irqchip/spear-shirq.h>
+#include <linux/of.h>
+#include <linux/of_address.h>
+#include <linux/of_irq.h>
+#include <linux/spinlock.h>
+
+static DEFINE_SPINLOCK(lock);
+
+/* spear300 shared irq registers offsets and masks */
+#define SPEAR300_INT_ENB_MASK_REG 0x54
+#define SPEAR300_INT_STS_MASK_REG 0x58
+
+static struct spear_shirq spear300_shirq_ras1 = {
+ .irq_nr = 9,
+ .irq_bit_off = 0,
+ .regs = {
+ .enb_reg = SPEAR300_INT_ENB_MASK_REG,
+ .status_reg = SPEAR300_INT_STS_MASK_REG,
+ .clear_reg = -1,
+ },
+};
+
+static struct spear_shirq *spear300_shirq_blocks[] = {
+ &spear300_shirq_ras1,
+};
+
+/* spear310 shared irq registers offsets and masks */
+#define SPEAR310_INT_STS_MASK_REG 0x04
+
+static struct spear_shirq spear310_shirq_ras1 = {
+ .irq_nr = 8,
+ .irq_bit_off = 0,
+ .regs = {
+ .enb_reg = -1,
+ .status_reg = SPEAR310_INT_STS_MASK_REG,
+ .clear_reg = -1,
+ },
+};
+
+static struct spear_shirq spear310_shirq_ras2 = {
+ .irq_nr = 5,
+ .irq_bit_off = 8,
+ .regs = {
+ .enb_reg = -1,
+ .status_reg = SPEAR310_INT_STS_MASK_REG,
+ .clear_reg = -1,
+ },
+};
+
+static struct spear_shirq spear310_shirq_ras3 = {
+ .irq_nr = 1,
+ .irq_bit_off = 13,
+ .regs = {
+ .enb_reg = -1,
+ .status_reg = SPEAR310_INT_STS_MASK_REG,
+ .clear_reg = -1,
+ },
+};
+
+static struct spear_shirq spear310_shirq_intrcomm_ras = {
+ .irq_nr = 3,
+ .irq_bit_off = 14,
+ .regs = {
+ .enb_reg = -1,
+ .status_reg = SPEAR310_INT_STS_MASK_REG,
+ .clear_reg = -1,
+ },
+};
+
+static struct spear_shirq *spear310_shirq_blocks[] = {
+ &spear310_shirq_ras1,
+ &spear310_shirq_ras2,
+ &spear310_shirq_ras3,
+ &spear310_shirq_intrcomm_ras,
+};
+
+/* spear320 shared irq registers offsets and masks */
+#define SPEAR320_INT_STS_MASK_REG 0x04
+#define SPEAR320_INT_CLR_MASK_REG 0x04
+#define SPEAR320_INT_ENB_MASK_REG 0x08
+
+static struct spear_shirq spear320_shirq_ras1 = {
+ .irq_nr = 3,
+ .irq_bit_off = 7,
+ .regs = {
+ .enb_reg = -1,
+ .status_reg = SPEAR320_INT_STS_MASK_REG,
+ .clear_reg = SPEAR320_INT_CLR_MASK_REG,
+ .reset_to_clear = 1,
+ },
+};
+
+static struct spear_shirq spear320_shirq_ras2 = {
+ .irq_nr = 1,
+ .irq_bit_off = 10,
+ .regs = {
+ .enb_reg = -1,
+ .status_reg = SPEAR320_INT_STS_MASK_REG,
+ .clear_reg = SPEAR320_INT_CLR_MASK_REG,
+ .reset_to_clear = 1,
+ },
+};
+
+static struct spear_shirq spear320_shirq_ras3 = {
+ .irq_nr = 3,
+ .irq_bit_off = 0,
+ .invalid_irq = 1,
+ .regs = {
+ .enb_reg = SPEAR320_INT_ENB_MASK_REG,
+ .reset_to_enb = 1,
+ .status_reg = SPEAR320_INT_STS_MASK_REG,
+ .clear_reg = SPEAR320_INT_CLR_MASK_REG,
+ .reset_to_clear = 1,
+ },
+};
+
+static struct spear_shirq spear320_shirq_intrcomm_ras = {
+ .irq_nr = 11,
+ .irq_bit_off = 11,
+ .regs = {
+ .enb_reg = -1,
+ .status_reg = SPEAR320_INT_STS_MASK_REG,
+ .clear_reg = SPEAR320_INT_CLR_MASK_REG,
+ .reset_to_clear = 1,
+ },
+};
+
+static struct spear_shirq *spear320_shirq_blocks[] = {
+ &spear320_shirq_ras3,
+ &spear320_shirq_ras1,
+ &spear320_shirq_ras2,
+ &spear320_shirq_intrcomm_ras,
+};
+
+static void shirq_irq_mask_unmask(struct irq_data *d, bool mask)
+{
+ struct spear_shirq *shirq = irq_data_get_irq_chip_data(d);
+ u32 val, offset = d->irq - shirq->irq_base;
+ unsigned long flags;
+
+ if (shirq->regs.enb_reg == -1)
+ return;
+
+ spin_lock_irqsave(&lock, flags);
+ val = readl(shirq->base + shirq->regs.enb_reg);
+
+ if (mask ^ shirq->regs.reset_to_enb)
+ val &= ~(0x1 << shirq->irq_bit_off << offset);
+ else
+ val |= 0x1 << shirq->irq_bit_off << offset;
+
+ writel(val, shirq->base + shirq->regs.enb_reg);
+ spin_unlock_irqrestore(&lock, flags);
+
+}
+
+static void shirq_irq_mask(struct irq_data *d)
+{
+ shirq_irq_mask_unmask(d, 1);
+}
+
+static void shirq_irq_unmask(struct irq_data *d)
+{
+ shirq_irq_mask_unmask(d, 0);
+}
+
+static struct irq_chip shirq_chip = {
+ .name = "spear-shirq",
+ .irq_ack = shirq_irq_mask,
+ .irq_mask = shirq_irq_mask,
+ .irq_unmask = shirq_irq_unmask,
+};
+
+static void shirq_handler(unsigned irq, struct irq_desc *desc)
+{
+ u32 i, j, val, mask, tmp;
+ struct irq_chip *chip;
+ struct spear_shirq *shirq = irq_get_handler_data(irq);
+
+ chip = irq_get_chip(irq);
+ chip->irq_ack(&desc->irq_data);
+
+ mask = ((0x1 << shirq->irq_nr) - 1) << shirq->irq_bit_off;
+ while ((val = readl(shirq->base + shirq->regs.status_reg) &
+ mask)) {
+
+ val >>= shirq->irq_bit_off;
+ for (i = 0, j = 1; i < shirq->irq_nr; i++, j <<= 1) {
+
+ if (!(j & val))
+ continue;
+
+ generic_handle_irq(shirq->irq_base + i);
+
+ /* clear interrupt */
+ if (shirq->regs.clear_reg == -1)
+ continue;
+
+ tmp = readl(shirq->base + shirq->regs.clear_reg);
+ if (shirq->regs.reset_to_clear)
+ tmp &= ~(j << shirq->irq_bit_off);
+ else
+ tmp |= (j << shirq->irq_bit_off);
+ writel(tmp, shirq->base + shirq->regs.clear_reg);
+ }
+ }
+ chip->irq_unmask(&desc->irq_data);
+}
+
+static void __init spear_shirq_register(struct spear_shirq *shirq)
+{
+ int i;
+
+ if (shirq->invalid_irq)
+ return;
+
+ irq_set_chained_handler(shirq->irq, shirq_handler);
+ for (i = 0; i < shirq->irq_nr; i++) {
+ irq_set_chip_and_handler(shirq->irq_base + i,
+ &shirq_chip, handle_simple_irq);
+ set_irq_flags(shirq->irq_base + i, IRQF_VALID);
+ irq_set_chip_data(shirq->irq_base + i, shirq);
+ }
+
+ irq_set_handler_data(shirq->irq, shirq);
+}
+
+static int __init shirq_init(struct spear_shirq **shirq_blocks, int block_nr,
+ struct device_node *np)
+{
+ int i, irq_base, hwirq = 0, irq_nr = 0;
+ static struct irq_domain *shirq_domain;
+ void __iomem *base;
+
+ base = of_iomap(np, 0);
+ if (!base) {
+ pr_err("%s: failed to map shirq registers\n", __func__);
+ return -ENXIO;
+ }
+
+ for (i = 0; i < block_nr; i++)
+ irq_nr += shirq_blocks[i]->irq_nr;
+
+ irq_base = irq_alloc_descs(-1, 0, irq_nr, 0);
+ if (IS_ERR_VALUE(irq_base)) {
+ pr_err("%s: irq desc alloc failed\n", __func__);
+ goto err_unmap;
+ }
+
+ shirq_domain = irq_domain_add_legacy(np, irq_nr, irq_base, 0,
+ &irq_domain_simple_ops, NULL);
+ if (WARN_ON(!shirq_domain)) {
+ pr_warn("%s: irq domain init failed\n", __func__);
+ goto err_free_desc;
+ }
+
+ for (i = 0; i < block_nr; i++) {
+ shirq_blocks[i]->base = base;
+ shirq_blocks[i]->irq_base = irq_find_mapping(shirq_domain,
+ hwirq);
+ shirq_blocks[i]->irq = irq_of_parse_and_map(np, i);
+
+ spear_shirq_register(shirq_blocks[i]);
+ hwirq += shirq_blocks[i]->irq_nr;
+ }
+
+ return 0;
+
+err_free_desc:
+ irq_free_descs(irq_base, irq_nr);
+err_unmap:
+ iounmap(base);
+ return -ENXIO;
+}
+
+int __init spear300_shirq_of_init(struct device_node *np,
+ struct device_node *parent)
+{
+ return shirq_init(spear300_shirq_blocks,
+ ARRAY_SIZE(spear300_shirq_blocks), np);
+}
+
+int __init spear310_shirq_of_init(struct device_node *np,
+ struct device_node *parent)
+{
+ return shirq_init(spear310_shirq_blocks,
+ ARRAY_SIZE(spear310_shirq_blocks), np);
+}
+
+int __init spear320_shirq_of_init(struct device_node *np,
+ struct device_node *parent)
+{
+ return shirq_init(spear320_shirq_blocks,
+ ARRAY_SIZE(spear320_shirq_blocks), np);
+}
diff --git a/drivers/pinctrl/Kconfig b/drivers/pinctrl/Kconfig
index aeecf0f72ca..4d4b08b51f8 100644
--- a/drivers/pinctrl/Kconfig
+++ b/drivers/pinctrl/Kconfig
@@ -143,8 +143,8 @@ config PINCTRL_SINGLE
This selects the device tree based generic pinctrl driver.
config PINCTRL_SIRF
- bool "CSR SiRFprimaII pin controller driver"
- depends on ARCH_PRIMA2
+ bool "CSR SiRFprimaII/SiRFmarco pin controller driver"
+ depends on ARCH_SIRF
select PINMUX
config PINCTRL_TEGRA
@@ -188,27 +188,7 @@ config PINCTRL_EXYNOS4
depends on OF && GPIOLIB
select PINCTRL_SAMSUNG
-config PINCTRL_MVEBU
- bool
- depends on ARCH_MVEBU
- select PINMUX
- select PINCONF
-
-config PINCTRL_DOVE
- bool
- select PINCTRL_MVEBU
-
-config PINCTRL_KIRKWOOD
- bool
- select PINCTRL_MVEBU
-
-config PINCTRL_ARMADA_370
- bool
- select PINCTRL_MVEBU
-
-config PINCTRL_ARMADA_XP
- bool
- select PINCTRL_MVEBU
+source "drivers/pinctrl/mvebu/Kconfig"
source "drivers/pinctrl/spear/Kconfig"
diff --git a/drivers/pinctrl/Makefile b/drivers/pinctrl/Makefile
index f395ba5cec2..3cb6a0a668a 100644
--- a/drivers/pinctrl/Makefile
+++ b/drivers/pinctrl/Makefile
@@ -36,12 +36,8 @@ obj-$(CONFIG_PINCTRL_U300) += pinctrl-u300.o
obj-$(CONFIG_PINCTRL_COH901) += pinctrl-coh901.o
obj-$(CONFIG_PINCTRL_SAMSUNG) += pinctrl-samsung.o
obj-$(CONFIG_PINCTRL_EXYNOS4) += pinctrl-exynos.o
-obj-$(CONFIG_PINCTRL_MVEBU) += pinctrl-mvebu.o
-obj-$(CONFIG_PINCTRL_DOVE) += pinctrl-dove.o
-obj-$(CONFIG_PINCTRL_KIRKWOOD) += pinctrl-kirkwood.o
-obj-$(CONFIG_PINCTRL_ARMADA_370) += pinctrl-armada-370.o
-obj-$(CONFIG_PINCTRL_ARMADA_XP) += pinctrl-armada-xp.o
obj-$(CONFIG_PINCTRL_XWAY) += pinctrl-xway.o
obj-$(CONFIG_PINCTRL_LANTIQ) += pinctrl-lantiq.o
+obj-$(CONFIG_PLAT_ORION) += mvebu/
obj-$(CONFIG_PLAT_SPEAR) += spear/
diff --git a/drivers/pinctrl/core.c b/drivers/pinctrl/core.c
index 2e39c04fc16..71db586b2af 100644
--- a/drivers/pinctrl/core.c
+++ b/drivers/pinctrl/core.c
@@ -345,6 +345,33 @@ void pinctrl_add_gpio_ranges(struct pinctrl_dev *pctldev,
}
EXPORT_SYMBOL_GPL(pinctrl_add_gpio_ranges);
+struct pinctrl_dev *find_pinctrl_and_add_gpio_range(const char *devname,
+ struct pinctrl_gpio_range *range)
+{
+ struct pinctrl_dev *pctldev = get_pinctrl_dev_from_devname(devname);
+
+ if (!pctldev)
+ return NULL;
+
+ pinctrl_add_gpio_range(pctldev, range);
+ return pctldev;
+}
+EXPORT_SYMBOL_GPL(find_pinctrl_and_add_gpio_range);
+
+/**
+ * pinctrl_remove_gpio_range() - remove a range of GPIOs fro a pin controller
+ * @pctldev: pin controller device to remove the range from
+ * @range: the GPIO range to remove
+ */
+void pinctrl_remove_gpio_range(struct pinctrl_dev *pctldev,
+ struct pinctrl_gpio_range *range)
+{
+ mutex_lock(&pinctrl_mutex);
+ list_del(&range->node);
+ mutex_unlock(&pinctrl_mutex);
+}
+EXPORT_SYMBOL_GPL(pinctrl_remove_gpio_range);
+
/**
* pinctrl_get_group_selector() - returns the group selector for a group
* @pctldev: the pin controller handling the group
@@ -563,6 +590,8 @@ static int add_setting(struct pinctrl *p, struct pinctrl_map const *map)
return -EPROBE_DEFER;
}
+ setting->dev_name = map->dev_name;
+
switch (map->type) {
case PIN_MAP_TYPE_MUX_GROUP:
ret = pinmux_map_to_setting(map, setting);
diff --git a/drivers/pinctrl/core.h b/drivers/pinctrl/core.h
index 1f40ff68a8c..12f5694f3d5 100644
--- a/drivers/pinctrl/core.h
+++ b/drivers/pinctrl/core.h
@@ -105,12 +105,14 @@ struct pinctrl_setting_configs {
* @type: the type of setting
* @pctldev: pin control device handling to be programmed. Not used for
* PIN_MAP_TYPE_DUMMY_STATE.
+ * @dev_name: the name of the device using this state
* @data: Data specific to the setting type
*/
struct pinctrl_setting {
struct list_head node;
enum pinctrl_map_type type;
struct pinctrl_dev *pctldev;
+ const char *dev_name;
union {
struct pinctrl_setting_mux mux;
struct pinctrl_setting_configs configs;
diff --git a/drivers/pinctrl/devicetree.c b/drivers/pinctrl/devicetree.c
index fcb1de45473..fe2d1af7cfa 100644
--- a/drivers/pinctrl/devicetree.c
+++ b/drivers/pinctrl/devicetree.c
@@ -106,6 +106,17 @@ static struct pinctrl_dev *find_pinctrl_by_of_node(struct device_node *np)
return NULL;
}
+struct pinctrl_dev *of_pinctrl_get(struct device_node *np)
+{
+ struct pinctrl_dev *pctldev;
+
+ pctldev = find_pinctrl_by_of_node(np);
+ if (!pctldev)
+ return NULL;
+
+ return pctldev;
+}
+
static int dt_to_map_one_config(struct pinctrl *p, const char *statename,
struct device_node *np_config)
{
diff --git a/drivers/pinctrl/mvebu/Kconfig b/drivers/pinctrl/mvebu/Kconfig
new file mode 100644
index 00000000000..366fa541ee9
--- /dev/null
+++ b/drivers/pinctrl/mvebu/Kconfig
@@ -0,0 +1,24 @@
+if PLAT_ORION
+
+config PINCTRL_MVEBU
+ bool
+ select PINMUX
+ select PINCONF
+
+config PINCTRL_DOVE
+ bool
+ select PINCTRL_MVEBU
+
+config PINCTRL_KIRKWOOD
+ bool
+ select PINCTRL_MVEBU
+
+config PINCTRL_ARMADA_370
+ bool
+ select PINCTRL_MVEBU
+
+config PINCTRL_ARMADA_XP
+ bool
+ select PINCTRL_MVEBU
+
+endif
diff --git a/drivers/pinctrl/mvebu/Makefile b/drivers/pinctrl/mvebu/Makefile
new file mode 100644
index 00000000000..37c253297af
--- /dev/null
+++ b/drivers/pinctrl/mvebu/Makefile
@@ -0,0 +1,5 @@
+obj-$(CONFIG_PINCTRL_MVEBU) += pinctrl-mvebu.o
+obj-$(CONFIG_PINCTRL_DOVE) += pinctrl-dove.o
+obj-$(CONFIG_PINCTRL_KIRKWOOD) += pinctrl-kirkwood.o
+obj-$(CONFIG_PINCTRL_ARMADA_370) += pinctrl-armada-370.o
+obj-$(CONFIG_PINCTRL_ARMADA_XP) += pinctrl-armada-xp.o
diff --git a/drivers/pinctrl/pinctrl-armada-370.c b/drivers/pinctrl/mvebu/pinctrl-armada-370.c
index c907647de6a..c907647de6a 100644
--- a/drivers/pinctrl/pinctrl-armada-370.c
+++ b/drivers/pinctrl/mvebu/pinctrl-armada-370.c
diff --git a/drivers/pinctrl/pinctrl-armada-xp.c b/drivers/pinctrl/mvebu/pinctrl-armada-xp.c
index 40bd52a46b4..40bd52a46b4 100644
--- a/drivers/pinctrl/pinctrl-armada-xp.c
+++ b/drivers/pinctrl/mvebu/pinctrl-armada-xp.c
diff --git a/drivers/pinctrl/pinctrl-dove.c b/drivers/pinctrl/mvebu/pinctrl-dove.c
index ffe74b27d66..ffe74b27d66 100644
--- a/drivers/pinctrl/pinctrl-dove.c
+++ b/drivers/pinctrl/mvebu/pinctrl-dove.c
diff --git a/drivers/pinctrl/pinctrl-kirkwood.c b/drivers/pinctrl/mvebu/pinctrl-kirkwood.c
index 9a74ef674a0..9a74ef674a0 100644
--- a/drivers/pinctrl/pinctrl-kirkwood.c
+++ b/drivers/pinctrl/mvebu/pinctrl-kirkwood.c
diff --git a/drivers/pinctrl/pinctrl-mvebu.c b/drivers/pinctrl/mvebu/pinctrl-mvebu.c
index 8e6266c6249..6c44b7e8964 100644
--- a/drivers/pinctrl/pinctrl-mvebu.c
+++ b/drivers/pinctrl/mvebu/pinctrl-mvebu.c
@@ -24,7 +24,6 @@
#include <linux/pinctrl/pinctrl.h>
#include <linux/pinctrl/pinmux.h>
-#include "core.h"
#include "pinctrl-mvebu.h"
#define MPPS_PER_REG 8
diff --git a/drivers/pinctrl/pinctrl-mvebu.h b/drivers/pinctrl/mvebu/pinctrl-mvebu.h
index 90bd3beee86..90bd3beee86 100644
--- a/drivers/pinctrl/pinctrl-mvebu.h
+++ b/drivers/pinctrl/mvebu/pinctrl-mvebu.h
diff --git a/drivers/pinctrl/pinctrl-coh901.c b/drivers/pinctrl/pinctrl-coh901.c
index b446c964121..5c7daf9169e 100644
--- a/drivers/pinctrl/pinctrl-coh901.c
+++ b/drivers/pinctrl/pinctrl-coh901.c
@@ -13,6 +13,7 @@
#include <linux/delay.h>
#include <linux/errno.h>
#include <linux/io.h>
+#include <linux/irqdomain.h>
#include <linux/clk.h>
#include <linux/err.h>
#include <linux/platform_device.h>
@@ -64,10 +65,8 @@ struct u300_gpio {
struct gpio_chip chip;
struct list_head port_list;
struct clk *clk;
- struct resource *memres;
void __iomem *base;
struct device *dev;
- int irq_base;
u32 stride;
/* Register offsets */
u32 pcr;
@@ -83,6 +82,7 @@ struct u300_gpio_port {
struct list_head node;
struct u300_gpio *gpio;
char name[8];
+ struct irq_domain *domain;
int irq;
int number;
u8 toggle_edge_mode;
@@ -314,10 +314,30 @@ static int u300_gpio_direction_output(struct gpio_chip *chip, unsigned offset,
static int u300_gpio_to_irq(struct gpio_chip *chip, unsigned offset)
{
struct u300_gpio *gpio = to_u300_gpio(chip);
- int retirq = gpio->irq_base + offset;
+ int portno = offset >> 3;
+ struct u300_gpio_port *port = NULL;
+ struct list_head *p;
+ int retirq;
+
+ list_for_each(p, &gpio->port_list) {
+ port = list_entry(p, struct u300_gpio_port, node);
+ if (port->number == portno)
+ break;
+ }
+ if (port == NULL) {
+ dev_err(gpio->dev, "could not locate port for GPIO %d IRQ\n",
+ offset);
+ return -EINVAL;
+ }
+
+ /*
+ * The local hwirqs on the port are the lower three bits, there
+ * are exactly 8 IRQs per port since they are 8-bit
+ */
+ retirq = irq_find_mapping(port->domain, (offset & 0x7));
- dev_dbg(gpio->dev, "request IRQ for GPIO %d, return %d\n", offset,
- retirq);
+ dev_dbg(gpio->dev, "request IRQ for GPIO %d, return %d from port %d\n",
+ offset, retirq, port->number);
return retirq;
}
@@ -467,7 +487,7 @@ static int u300_gpio_irq_type(struct irq_data *d, unsigned trigger)
{
struct u300_gpio_port *port = irq_data_get_irq_chip_data(d);
struct u300_gpio *gpio = port->gpio;
- int offset = d->irq - gpio->irq_base;
+ int offset = (port->number << 3) + d->hwirq;
u32 val;
if ((trigger & IRQF_TRIGGER_RISING) &&
@@ -503,10 +523,12 @@ static void u300_gpio_irq_enable(struct irq_data *d)
{
struct u300_gpio_port *port = irq_data_get_irq_chip_data(d);
struct u300_gpio *gpio = port->gpio;
- int offset = d->irq - gpio->irq_base;
+ int offset = (port->number << 3) + d->hwirq;
u32 val;
unsigned long flags;
+ dev_dbg(gpio->dev, "enable IRQ for hwirq %lu on port %s, offset %d\n",
+ d->hwirq, port->name, offset);
local_irq_save(flags);
val = readl(U300_PIN_REG(offset, ien));
writel(val | U300_PIN_BIT(offset), U300_PIN_REG(offset, ien));
@@ -517,7 +539,7 @@ static void u300_gpio_irq_disable(struct irq_data *d)
{
struct u300_gpio_port *port = irq_data_get_irq_chip_data(d);
struct u300_gpio *gpio = port->gpio;
- int offset = d->irq - gpio->irq_base;
+ int offset = (port->number << 3) + d->hwirq;
u32 val;
unsigned long flags;
@@ -555,8 +577,7 @@ static void u300_gpio_irq_handler(unsigned irq, struct irq_desc *desc)
int irqoffset;
for_each_set_bit(irqoffset, &val, U300_GPIO_PINS_PER_PORT) {
- int pin_irq = gpio->irq_base + (port->number << 3)
- + irqoffset;
+ int pin_irq = irq_find_mapping(port->domain, irqoffset);
int offset = pinoffset + irqoffset;
dev_dbg(gpio->dev, "GPIO IRQ %d on pin %d\n",
@@ -631,6 +652,8 @@ static inline void u300_gpio_free_ports(struct u300_gpio *gpio)
list_for_each_safe(p, n, &gpio->port_list) {
port = list_entry(p, struct u300_gpio_port, node);
list_del(&port->node);
+ if (port->domain)
+ irq_domain_remove(port->domain);
kfree(port);
}
}
@@ -639,56 +662,46 @@ static int __init u300_gpio_probe(struct platform_device *pdev)
{
struct u300_gpio_platform *plat = dev_get_platdata(&pdev->dev);
struct u300_gpio *gpio;
+ struct resource *memres;
int err = 0;
int portno;
u32 val;
u32 ifr;
int i;
- gpio = kzalloc(sizeof(struct u300_gpio), GFP_KERNEL);
- if (gpio == NULL) {
- dev_err(&pdev->dev, "failed to allocate memory\n");
+ gpio = devm_kzalloc(&pdev->dev, sizeof(struct u300_gpio), GFP_KERNEL);
+ if (gpio == NULL)
return -ENOMEM;
- }
gpio->chip = u300_gpio_chip;
gpio->chip.ngpio = plat->ports * U300_GPIO_PINS_PER_PORT;
- gpio->irq_base = plat->gpio_irq_base;
gpio->chip.dev = &pdev->dev;
gpio->chip.base = plat->gpio_base;
gpio->dev = &pdev->dev;
- /* Get GPIO clock */
- gpio->clk = clk_get(gpio->dev, NULL);
+ memres = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+ if (!memres) {
+ dev_err(gpio->dev, "could not get GPIO memory resource\n");
+ return -ENODEV;
+ }
+
+ gpio->base = devm_request_and_ioremap(&pdev->dev, memres);
+ if (!gpio->base) {
+ dev_err(gpio->dev, "could not get remap memory\n");
+ return -ENOMEM;
+ }
+
+ gpio->clk = devm_clk_get(gpio->dev, NULL);
if (IS_ERR(gpio->clk)) {
err = PTR_ERR(gpio->clk);
dev_err(gpio->dev, "could not get GPIO clock\n");
- goto err_no_clk;
+ return err;
}
+
err = clk_prepare_enable(gpio->clk);
if (err) {
dev_err(gpio->dev, "could not enable GPIO clock\n");
- goto err_no_clk_enable;
- }
-
- gpio->memres = platform_get_resource(pdev, IORESOURCE_MEM, 0);
- if (!gpio->memres) {
- dev_err(gpio->dev, "could not get GPIO memory resource\n");
- err = -ENODEV;
- goto err_no_resource;
- }
-
- if (!request_mem_region(gpio->memres->start,
- resource_size(gpio->memres),
- "GPIO Controller")) {
- err = -ENODEV;
- goto err_no_ioregion;
- }
-
- gpio->base = ioremap(gpio->memres->start, resource_size(gpio->memres));
- if (!gpio->base) {
- err = -ENOMEM;
- goto err_no_ioremap;
+ return err;
}
dev_info(gpio->dev,
@@ -732,18 +745,26 @@ static int __init u300_gpio_probe(struct platform_device *pdev)
port->irq = platform_get_irq_byname(pdev,
port->name);
- dev_dbg(gpio->dev, "register IRQ %d for %s\n", port->irq,
+ dev_dbg(gpio->dev, "register IRQ %d for port %s\n", port->irq,
port->name);
+ port->domain = irq_domain_add_linear(pdev->dev.of_node,
+ U300_GPIO_PINS_PER_PORT,
+ &irq_domain_simple_ops,
+ port);
+ if (!port->domain)
+ goto err_no_domain;
+
irq_set_chained_handler(port->irq, u300_gpio_irq_handler);
irq_set_handler_data(port->irq, port);
/* For each GPIO pin set the unique IRQ handler */
for (i = 0; i < U300_GPIO_PINS_PER_PORT; i++) {
- int irqno = gpio->irq_base + (portno << 3) + i;
+ int irqno = irq_create_mapping(port->domain, i);
- dev_dbg(gpio->dev, "handler for IRQ %d on %s\n",
- irqno, port->name);
+ dev_dbg(gpio->dev, "GPIO%d on port %s gets IRQ %d\n",
+ gpio->chip.base + (port->number << 3) + i,
+ port->name, irqno);
irq_set_chip_and_handler(irqno, &u300_gpio_irqchip,
handle_simple_irq);
set_irq_flags(irqno, IRQF_VALID);
@@ -776,18 +797,10 @@ static int __init u300_gpio_probe(struct platform_device *pdev)
err_no_pinctrl:
err = gpiochip_remove(&gpio->chip);
err_no_chip:
+err_no_domain:
err_no_port:
u300_gpio_free_ports(gpio);
- iounmap(gpio->base);
-err_no_ioremap:
- release_mem_region(gpio->memres->start, resource_size(gpio->memres));
-err_no_ioregion:
-err_no_resource:
clk_disable_unprepare(gpio->clk);
-err_no_clk_enable:
- clk_put(gpio->clk);
-err_no_clk:
- kfree(gpio);
dev_info(&pdev->dev, "module ERROR:%d\n", err);
return err;
}
@@ -806,13 +819,8 @@ static int __exit u300_gpio_remove(struct platform_device *pdev)
return err;
}
u300_gpio_free_ports(gpio);
- iounmap(gpio->base);
- release_mem_region(gpio->memres->start,
- resource_size(gpio->memres));
clk_disable_unprepare(gpio->clk);
- clk_put(gpio->clk);
platform_set_drvdata(pdev, NULL);
- kfree(gpio);
return 0;
}
diff --git a/drivers/pinctrl/pinctrl-exynos.c b/drivers/pinctrl/pinctrl-exynos.c
index 21362f48d37..6ff665209a4 100644
--- a/drivers/pinctrl/pinctrl-exynos.c
+++ b/drivers/pinctrl/pinctrl-exynos.c
@@ -36,6 +36,7 @@
/* list of external wakeup controllers supported */
static const struct of_device_id exynos_wkup_irq_ids[] = {
{ .compatible = "samsung,exynos4210-wakeup-eint", },
+ { }
};
static void exynos_gpio_irq_unmask(struct irq_data *irqd)
diff --git a/drivers/pinctrl/pinctrl-sirf.c b/drivers/pinctrl/pinctrl-sirf.c
index 9ecacf3d0a7..a3905e58d1b 100644
--- a/drivers/pinctrl/pinctrl-sirf.c
+++ b/drivers/pinctrl/pinctrl-sirf.c
@@ -32,10 +32,10 @@
#define SIRFSOC_NUM_PADS 622
#define SIRFSOC_RSC_PIN_MUX 0x4
-#define SIRFSOC_GPIO_PAD_EN(g) ((g)*0x100 + 0x84)
+#define SIRFSOC_GPIO_PAD_EN(g) ((g)*0x100 + 0x84)
+#define SIRFSOC_GPIO_PAD_EN_CLR(g) ((g)*0x100 + 0x90)
#define SIRFSOC_GPIO_CTRL(g, i) ((g)*0x100 + (i)*4)
#define SIRFSOC_GPIO_DSP_EN0 (0x80)
-#define SIRFSOC_GPIO_PAD_EN(g) ((g)*0x100 + 0x84)
#define SIRFSOC_GPIO_INT_STATUS(g) ((g)*0x100 + 0x8C)
#define SIRFSOC_GPIO_CTL_INTR_LOW_MASK 0x1
@@ -60,6 +60,7 @@ struct sirfsoc_gpio_bank {
int id;
int parent_irq;
spinlock_t lock;
+ bool is_marco; /* for marco, some registers are different with prima2 */
};
static struct sirfsoc_gpio_bank sgpio_bank[SIRFSOC_GPIO_NO_OF_BANKS];
@@ -191,6 +192,7 @@ struct sirfsoc_pmx {
struct pinctrl_dev *pmx;
void __iomem *gpio_virtbase;
void __iomem *rsc_virtbase;
+ bool is_marco;
};
/* SIRFSOC_GPIO_PAD_EN set */
@@ -1088,12 +1090,21 @@ static void sirfsoc_pinmux_endisable(struct sirfsoc_pmx *spmx, unsigned selector
for (i = 0; i < mux->muxmask_counts; i++) {
u32 muxval;
- muxval = readl(spmx->gpio_virtbase + SIRFSOC_GPIO_PAD_EN(mask[i].group));
- if (enable)
- muxval = muxval & ~mask[i].mask;
- else
- muxval = muxval | mask[i].mask;
- writel(muxval, spmx->gpio_virtbase + SIRFSOC_GPIO_PAD_EN(mask[i].group));
+ if (!spmx->is_marco) {
+ muxval = readl(spmx->gpio_virtbase + SIRFSOC_GPIO_PAD_EN(mask[i].group));
+ if (enable)
+ muxval = muxval & ~mask[i].mask;
+ else
+ muxval = muxval | mask[i].mask;
+ writel(muxval, spmx->gpio_virtbase + SIRFSOC_GPIO_PAD_EN(mask[i].group));
+ } else {
+ if (enable)
+ writel(mask[i].mask, spmx->gpio_virtbase +
+ SIRFSOC_GPIO_PAD_EN_CLR(mask[i].group));
+ else
+ writel(mask[i].mask, spmx->gpio_virtbase +
+ SIRFSOC_GPIO_PAD_EN(mask[i].group));
+ }
}
if (mux->funcmask && enable) {
@@ -1158,9 +1169,14 @@ static int sirfsoc_pinmux_request_gpio(struct pinctrl_dev *pmxdev,
spmx = pinctrl_dev_get_drvdata(pmxdev);
- muxval = readl(spmx->gpio_virtbase + SIRFSOC_GPIO_PAD_EN(group));
- muxval = muxval | (1 << (offset - range->pin_base));
- writel(muxval, spmx->gpio_virtbase + SIRFSOC_GPIO_PAD_EN(group));
+ if (!spmx->is_marco) {
+ muxval = readl(spmx->gpio_virtbase + SIRFSOC_GPIO_PAD_EN(group));
+ muxval = muxval | (1 << (offset - range->pin_base));
+ writel(muxval, spmx->gpio_virtbase + SIRFSOC_GPIO_PAD_EN(group));
+ } else {
+ writel(1 << (offset - range->pin_base), spmx->gpio_virtbase +
+ SIRFSOC_GPIO_PAD_EN(group));
+ }
return 0;
}
@@ -1218,6 +1234,7 @@ static void __iomem *sirfsoc_rsc_of_iomap(void)
{
const struct of_device_id rsc_ids[] = {
{ .compatible = "sirf,prima2-rsc" },
+ { .compatible = "sirf,marco-rsc" },
{}
};
struct device_node *np;
@@ -1259,6 +1276,9 @@ static int __devinit sirfsoc_pinmux_probe(struct platform_device *pdev)
goto out_no_rsc_remap;
}
+ if (of_device_is_compatible(np, "sirf,marco-pinctrl"))
+ spmx->is_marco = 1;
+
/* Now register the pin controller and all pins it handles */
spmx->pmx = pinctrl_register(&sirfsoc_pinmux_desc, &pdev->dev, spmx);
if (!spmx->pmx) {
@@ -1287,6 +1307,7 @@ out_no_gpio_remap:
static const struct of_device_id pinmux_ids[] __devinitconst = {
{ .compatible = "sirf,prima2-pinctrl" },
+ { .compatible = "sirf,marco-pinctrl" },
{}
};
@@ -1621,8 +1642,8 @@ static void sirfsoc_gpio_set_value(struct gpio_chip *chip, unsigned offset,
spin_unlock_irqrestore(&bank->lock, flags);
}
-int sirfsoc_gpio_irq_map(struct irq_domain *d, unsigned int irq,
- irq_hw_number_t hwirq)
+static int sirfsoc_gpio_irq_map(struct irq_domain *d, unsigned int irq,
+ irq_hw_number_t hwirq)
{
struct sirfsoc_gpio_bank *bank = d->host_data;
@@ -1648,6 +1669,7 @@ static int __devinit sirfsoc_gpio_probe(struct device_node *np)
struct sirfsoc_gpio_bank *bank;
void *regs;
struct platform_device *pdev;
+ bool is_marco = false;
pdev = of_find_device_by_node(np);
if (!pdev)
@@ -1657,6 +1679,9 @@ static int __devinit sirfsoc_gpio_probe(struct device_node *np)
if (!regs)
return -ENOMEM;
+ if (of_device_is_compatible(np, "sirf,marco-pinctrl"))
+ is_marco = 1;
+
for (i = 0; i < SIRFSOC_GPIO_NO_OF_BANKS; i++) {
bank = &sgpio_bank[i];
spin_lock_init(&bank->lock);
@@ -1673,6 +1698,7 @@ static int __devinit sirfsoc_gpio_probe(struct device_node *np)
bank->chip.gc.of_node = np;
bank->chip.regs = regs;
bank->id = i;
+ bank->is_marco = is_marco;
bank->parent_irq = platform_get_irq(pdev, i);
if (bank->parent_irq < 0) {
err = bank->parent_irq;
diff --git a/drivers/pinctrl/pinctrl-u300.c b/drivers/pinctrl/pinctrl-u300.c
index 309f5b9a70e..d756cce588f 100644
--- a/drivers/pinctrl/pinctrl-u300.c
+++ b/drivers/pinctrl/pinctrl-u300.c
@@ -663,8 +663,6 @@ static const struct pinctrl_pin_desc u300_pads[] = {
struct u300_pmx {
struct device *dev;
struct pinctrl_dev *pctl;
- u32 phybase;
- u32 physize;
void __iomem *virtbase;
};
@@ -1054,9 +1052,8 @@ static struct pinctrl_gpio_range *u300_match_gpio_range(unsigned pin)
return NULL;
}
-int u300_pin_config_get(struct pinctrl_dev *pctldev,
- unsigned pin,
- unsigned long *config)
+static int u300_pin_config_get(struct pinctrl_dev *pctldev, unsigned pin,
+ unsigned long *config)
{
struct pinctrl_gpio_range *range = u300_match_gpio_range(pin);
@@ -1069,9 +1066,8 @@ int u300_pin_config_get(struct pinctrl_dev *pctldev,
config);
}
-int u300_pin_config_set(struct pinctrl_dev *pctldev,
- unsigned pin,
- unsigned long config)
+static int u300_pin_config_set(struct pinctrl_dev *pctldev, unsigned pin,
+ unsigned long config)
{
struct pinctrl_gpio_range *range = u300_match_gpio_range(pin);
int ret;
@@ -1110,7 +1106,6 @@ static int __devinit u300_pmx_probe(struct platform_device *pdev)
struct u300_pmx *upmx;
struct resource *res;
struct gpio_chip *gpio_chip = dev_get_platdata(&pdev->dev);
- int ret;
int i;
/* Create state holders etc for this driver */
@@ -1123,26 +1118,15 @@ static int __devinit u300_pmx_probe(struct platform_device *pdev)
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
if (!res)
return -ENOENT;
- upmx->phybase = res->start;
- upmx->physize = resource_size(res);
-
- if (request_mem_region(upmx->phybase, upmx->physize,
- DRIVER_NAME) == NULL) {
- ret = -ENOMEM;
- goto out_no_memregion;
- }
- upmx->virtbase = ioremap(upmx->phybase, upmx->physize);
- if (!upmx->virtbase) {
- ret = -ENOMEM;
- goto out_no_remap;
- }
+ upmx->virtbase = devm_request_and_ioremap(&pdev->dev, res);
+ if (!upmx->virtbase)
+ return -ENOMEM;
upmx->pctl = pinctrl_register(&u300_pmx_desc, &pdev->dev, upmx);
if (!upmx->pctl) {
dev_err(&pdev->dev, "could not register U300 pinmux driver\n");
- ret = -EINVAL;
- goto out_no_pmx;
+ return -EINVAL;
}
/* We will handle a range of GPIO pins */
@@ -1156,14 +1140,6 @@ static int __devinit u300_pmx_probe(struct platform_device *pdev)
dev_info(&pdev->dev, "initialized U300 pin control driver\n");
return 0;
-
-out_no_pmx:
- iounmap(upmx->virtbase);
-out_no_remap:
- platform_set_drvdata(pdev, NULL);
-out_no_memregion:
- release_mem_region(upmx->phybase, upmx->physize);
- return ret;
}
static int __devexit u300_pmx_remove(struct platform_device *pdev)
@@ -1171,8 +1147,6 @@ static int __devexit u300_pmx_remove(struct platform_device *pdev)
struct u300_pmx *upmx = platform_get_drvdata(pdev);
pinctrl_unregister(upmx->pctl);
- iounmap(upmx->virtbase);
- release_mem_region(upmx->phybase, upmx->physize);
platform_set_drvdata(pdev, NULL);
return 0;
diff --git a/drivers/pinctrl/pinmux.c b/drivers/pinctrl/pinmux.c
index 9301a7a95ef..0ef01ee2835 100644
--- a/drivers/pinctrl/pinmux.c
+++ b/drivers/pinctrl/pinmux.c
@@ -314,14 +314,11 @@ int pinmux_map_to_setting(struct pinctrl_map const *map,
{
struct pinctrl_dev *pctldev = setting->pctldev;
const struct pinmux_ops *pmxops = pctldev->desc->pmxops;
- const struct pinctrl_ops *pctlops = pctldev->desc->pctlops;
char const * const *groups;
unsigned num_groups;
int ret;
const char *group;
int i;
- const unsigned *pins;
- unsigned num_pins;
if (!pmxops) {
dev_err(pctldev->dev, "does not support mux function\n");
@@ -376,53 +373,12 @@ int pinmux_map_to_setting(struct pinctrl_map const *map,
}
setting->data.mux.group = ret;
- ret = pctlops->get_group_pins(pctldev, setting->data.mux.group, &pins,
- &num_pins);
- if (ret) {
- dev_err(pctldev->dev,
- "could not get pins for device %s group selector %d\n",
- pinctrl_dev_get_name(pctldev), setting->data.mux.group);
- return -ENODEV;
- }
-
- /* Try to allocate all pins in this group, one by one */
- for (i = 0; i < num_pins; i++) {
- ret = pin_request(pctldev, pins[i], map->dev_name, NULL);
- if (ret) {
- dev_err(pctldev->dev,
- "could not request pin %d on device %s\n",
- pins[i], pinctrl_dev_get_name(pctldev));
- /* On error release all taken pins */
- i--; /* this pin just failed */
- for (; i >= 0; i--)
- pin_free(pctldev, pins[i], NULL);
- return -ENODEV;
- }
- }
-
return 0;
}
void pinmux_free_setting(struct pinctrl_setting const *setting)
{
- struct pinctrl_dev *pctldev = setting->pctldev;
- const struct pinctrl_ops *pctlops = pctldev->desc->pctlops;
- const unsigned *pins;
- unsigned num_pins;
- int ret;
- int i;
-
- ret = pctlops->get_group_pins(pctldev, setting->data.mux.group,
- &pins, &num_pins);
- if (ret) {
- dev_err(pctldev->dev,
- "could not get pins for device %s group selector %d\n",
- pinctrl_dev_get_name(pctldev), setting->data.mux.group);
- return;
- }
-
- for (i = 0; i < num_pins; i++)
- pin_free(pctldev, pins[i], NULL);
+ /* This function is currently unused */
}
int pinmux_enable_setting(struct pinctrl_setting const *setting)
@@ -446,6 +402,22 @@ int pinmux_enable_setting(struct pinctrl_setting const *setting)
num_pins = 0;
}
+ /* Try to allocate all pins in this group, one by one */
+ for (i = 0; i < num_pins; i++) {
+ ret = pin_request(pctldev, pins[i], setting->dev_name, NULL);
+ if (ret) {
+ dev_err(pctldev->dev,
+ "could not request pin %d on device %s\n",
+ pins[i], pinctrl_dev_get_name(pctldev));
+ /* On error release all taken pins */
+ i--; /* this pin just failed */
+ for (; i >= 0; i--)
+ pin_free(pctldev, pins[i], NULL);
+ return -ENODEV;
+ }
+ }
+
+ /* Now that we have acquired the pins, encode the mux setting */
for (i = 0; i < num_pins; i++) {
desc = pin_desc_get(pctldev, pins[i]);
if (desc == NULL) {
@@ -482,6 +454,7 @@ void pinmux_disable_setting(struct pinctrl_setting const *setting)
num_pins = 0;
}
+ /* Flag the descs that no setting is active */
for (i = 0; i < num_pins; i++) {
desc = pin_desc_get(pctldev, pins[i]);
if (desc == NULL) {
@@ -493,6 +466,10 @@ void pinmux_disable_setting(struct pinctrl_setting const *setting)
desc->mux_setting = NULL;
}
+ /* And release the pins */
+ for (i = 0; i < num_pins; i++)
+ pin_free(pctldev, pins[i], NULL);
+
if (ops->disable)
ops->disable(pctldev, setting->data.mux.func, setting->data.mux.group);
}
diff --git a/drivers/pinctrl/spear/Kconfig b/drivers/pinctrl/spear/Kconfig
index 91558791e76..04d93e60267 100644
--- a/drivers/pinctrl/spear/Kconfig
+++ b/drivers/pinctrl/spear/Kconfig
@@ -25,20 +25,31 @@ config PINCTRL_SPEAR310
bool "ST Microelectronics SPEAr310 SoC pin controller driver"
depends on MACH_SPEAR310
select PINCTRL_SPEAR3XX
+ select PINCTRL_SPEAR_PLGPIO
config PINCTRL_SPEAR320
bool "ST Microelectronics SPEAr320 SoC pin controller driver"
depends on MACH_SPEAR320
select PINCTRL_SPEAR3XX
+ select PINCTRL_SPEAR_PLGPIO
config PINCTRL_SPEAR1310
bool "ST Microelectronics SPEAr1310 SoC pin controller driver"
depends on MACH_SPEAR1310
select PINCTRL_SPEAR
+ select PINCTRL_SPEAR_PLGPIO
config PINCTRL_SPEAR1340
bool "ST Microelectronics SPEAr1340 SoC pin controller driver"
depends on MACH_SPEAR1340
select PINCTRL_SPEAR
+ select PINCTRL_SPEAR_PLGPIO
+
+config PINCTRL_SPEAR_PLGPIO
+ bool "SPEAr SoC PLGPIO Controller"
+ depends on GPIOLIB && PINCTRL_SPEAR
+ help
+ Say yes here to support PLGPIO controller on ST Microelectronics SPEAr
+ SoCs.
endif
diff --git a/drivers/pinctrl/spear/Makefile b/drivers/pinctrl/spear/Makefile
index b28a7ba2244..0e400ebeb8f 100644
--- a/drivers/pinctrl/spear/Makefile
+++ b/drivers/pinctrl/spear/Makefile
@@ -1,5 +1,6 @@
# SPEAr pinmux support
+obj-$(CONFIG_PINCTRL_SPEAR_PLGPIO) += pinctrl-plgpio.o
obj-$(CONFIG_PINCTRL_SPEAR) += pinctrl-spear.o
obj-$(CONFIG_PINCTRL_SPEAR3XX) += pinctrl-spear3xx.o
obj-$(CONFIG_PINCTRL_SPEAR300) += pinctrl-spear300.o
diff --git a/drivers/pinctrl/spear/pinctrl-plgpio.c b/drivers/pinctrl/spear/pinctrl-plgpio.c
new file mode 100644
index 00000000000..1044ad3f3c8
--- /dev/null
+++ b/drivers/pinctrl/spear/pinctrl-plgpio.c
@@ -0,0 +1,746 @@
+/*
+ * SPEAr platform PLGPIO driver
+ *
+ * Copyright (C) 2012 ST Microelectronics
+ * Viresh Kumar <viresh.kumar@linaro.org>
+ *
+ * This file is licensed under the terms of the GNU General Public
+ * License version 2. This program is licensed "as is" without any
+ * warranty of any kind, whether express or implied.
+ */
+
+#include <linux/clk.h>
+#include <linux/err.h>
+#include <linux/gpio.h>
+#include <linux/io.h>
+#include <linux/irq.h>
+#include <linux/irqdomain.h>
+#include <linux/module.h>
+#include <linux/pinctrl/consumer.h>
+#include <linux/platform_device.h>
+#include <linux/pm.h>
+#include <linux/spinlock.h>
+#include <asm/mach/irq.h>
+
+#define MAX_GPIO_PER_REG 32
+#define PIN_OFFSET(pin) (pin % MAX_GPIO_PER_REG)
+#define REG_OFFSET(base, reg, pin) (base + reg + (pin / MAX_GPIO_PER_REG) \
+ * sizeof(int *))
+
+/*
+ * plgpio pins in all machines are not one to one mapped, bitwise with registers
+ * bits. These set of macros define register masks for which below functions
+ * (pin_to_offset and offset_to_pin) are required to be called.
+ */
+#define PTO_ENB_REG 0x001
+#define PTO_WDATA_REG 0x002
+#define PTO_DIR_REG 0x004
+#define PTO_IE_REG 0x008
+#define PTO_RDATA_REG 0x010
+#define PTO_MIS_REG 0x020
+
+struct plgpio_regs {
+ u32 enb; /* enable register */
+ u32 wdata; /* write data register */
+ u32 dir; /* direction set register */
+ u32 rdata; /* read data register */
+ u32 ie; /* interrupt enable register */
+ u32 mis; /* mask interrupt status register */
+ u32 eit; /* edge interrupt type */
+};
+
+/*
+ * struct plgpio: plgpio driver specific structure
+ *
+ * lock: lock for guarding gpio registers
+ * base: base address of plgpio block
+ * irq_base: irq number of plgpio0
+ * chip: gpio framework specific chip information structure
+ * p2o: function ptr for pin to offset conversion. This is required only for
+ * machines where mapping b/w pin and offset is not 1-to-1.
+ * o2p: function ptr for offset to pin conversion. This is required only for
+ * machines where mapping b/w pin and offset is not 1-to-1.
+ * p2o_regs: mask of registers for which p2o and o2p are applicable
+ * regs: register offsets
+ * csave_regs: context save registers for standby/sleep/hibernate cases
+ */
+struct plgpio {
+ spinlock_t lock;
+ void __iomem *base;
+ struct clk *clk;
+ unsigned irq_base;
+ struct irq_domain *irq_domain;
+ struct gpio_chip chip;
+ int (*p2o)(int pin); /* pin_to_offset */
+ int (*o2p)(int offset); /* offset_to_pin */
+ u32 p2o_regs;
+ struct plgpio_regs regs;
+#ifdef CONFIG_PM
+ struct plgpio_regs *csave_regs;
+#endif
+};
+
+/* register manipulation inline functions */
+static inline u32 is_plgpio_set(void __iomem *base, u32 pin, u32 reg)
+{
+ u32 offset = PIN_OFFSET(pin);
+ void __iomem *reg_off = REG_OFFSET(base, reg, pin);
+ u32 val = readl_relaxed(reg_off);
+
+ return !!(val & (1 << offset));
+}
+
+static inline void plgpio_reg_set(void __iomem *base, u32 pin, u32 reg)
+{
+ u32 offset = PIN_OFFSET(pin);
+ void __iomem *reg_off = REG_OFFSET(base, reg, pin);
+ u32 val = readl_relaxed(reg_off);
+
+ writel_relaxed(val | (1 << offset), reg_off);
+}
+
+static inline void plgpio_reg_reset(void __iomem *base, u32 pin, u32 reg)
+{
+ u32 offset = PIN_OFFSET(pin);
+ void __iomem *reg_off = REG_OFFSET(base, reg, pin);
+ u32 val = readl_relaxed(reg_off);
+
+ writel_relaxed(val & ~(1 << offset), reg_off);
+}
+
+/* gpio framework specific routines */
+static int plgpio_direction_input(struct gpio_chip *chip, unsigned offset)
+{
+ struct plgpio *plgpio = container_of(chip, struct plgpio, chip);
+ unsigned long flags;
+
+ /* get correct offset for "offset" pin */
+ if (plgpio->p2o && (plgpio->p2o_regs & PTO_DIR_REG)) {
+ offset = plgpio->p2o(offset);
+ if (offset == -1)
+ return -EINVAL;
+ }
+
+ spin_lock_irqsave(&plgpio->lock, flags);
+ plgpio_reg_set(plgpio->base, offset, plgpio->regs.dir);
+ spin_unlock_irqrestore(&plgpio->lock, flags);
+
+ return 0;
+}
+
+static int plgpio_direction_output(struct gpio_chip *chip, unsigned offset,
+ int value)
+{
+ struct plgpio *plgpio = container_of(chip, struct plgpio, chip);
+ unsigned long flags;
+ unsigned dir_offset = offset, wdata_offset = offset, tmp;
+
+ /* get correct offset for "offset" pin */
+ if (plgpio->p2o && (plgpio->p2o_regs & (PTO_DIR_REG | PTO_WDATA_REG))) {
+ tmp = plgpio->p2o(offset);
+ if (tmp == -1)
+ return -EINVAL;
+
+ if (plgpio->p2o_regs & PTO_DIR_REG)
+ dir_offset = tmp;
+ if (plgpio->p2o_regs & PTO_WDATA_REG)
+ wdata_offset = tmp;
+ }
+
+ spin_lock_irqsave(&plgpio->lock, flags);
+ if (value)
+ plgpio_reg_set(plgpio->base, wdata_offset,
+ plgpio->regs.wdata);
+ else
+ plgpio_reg_reset(plgpio->base, wdata_offset,
+ plgpio->regs.wdata);
+
+ plgpio_reg_reset(plgpio->base, dir_offset, plgpio->regs.dir);
+ spin_unlock_irqrestore(&plgpio->lock, flags);
+
+ return 0;
+}
+
+static int plgpio_get_value(struct gpio_chip *chip, unsigned offset)
+{
+ struct plgpio *plgpio = container_of(chip, struct plgpio, chip);
+
+ if (offset >= chip->ngpio)
+ return -EINVAL;
+
+ /* get correct offset for "offset" pin */
+ if (plgpio->p2o && (plgpio->p2o_regs & PTO_RDATA_REG)) {
+ offset = plgpio->p2o(offset);
+ if (offset == -1)
+ return -EINVAL;
+ }
+
+ return is_plgpio_set(plgpio->base, offset, plgpio->regs.rdata);
+}
+
+static void plgpio_set_value(struct gpio_chip *chip, unsigned offset, int value)
+{
+ struct plgpio *plgpio = container_of(chip, struct plgpio, chip);
+
+ if (offset >= chip->ngpio)
+ return;
+
+ /* get correct offset for "offset" pin */
+ if (plgpio->p2o && (plgpio->p2o_regs & PTO_WDATA_REG)) {
+ offset = plgpio->p2o(offset);
+ if (offset == -1)
+ return;
+ }
+
+ if (value)
+ plgpio_reg_set(plgpio->base, offset, plgpio->regs.wdata);
+ else
+ plgpio_reg_reset(plgpio->base, offset, plgpio->regs.wdata);
+}
+
+static int plgpio_request(struct gpio_chip *chip, unsigned offset)
+{
+ struct plgpio *plgpio = container_of(chip, struct plgpio, chip);
+ int gpio = chip->base + offset;
+ unsigned long flags;
+ int ret = 0;
+
+ if (offset >= chip->ngpio)
+ return -EINVAL;
+
+ ret = pinctrl_request_gpio(gpio);
+ if (ret)
+ return ret;
+
+ if (!IS_ERR(plgpio->clk)) {
+ ret = clk_prepare_enable(plgpio->clk);
+ if (ret)
+ goto err0;
+ }
+
+ if (plgpio->regs.enb == -1)
+ return 0;
+
+ /*
+ * put gpio in IN mode before enabling it. This make enabling gpio safe
+ */
+ ret = plgpio_direction_input(chip, offset);
+ if (ret)
+ goto err1;
+
+ /* get correct offset for "offset" pin */
+ if (plgpio->p2o && (plgpio->p2o_regs & PTO_ENB_REG)) {
+ offset = plgpio->p2o(offset);
+ if (offset == -1) {
+ ret = -EINVAL;
+ goto err1;
+ }
+ }
+
+ spin_lock_irqsave(&plgpio->lock, flags);
+ plgpio_reg_set(plgpio->base, offset, plgpio->regs.enb);
+ spin_unlock_irqrestore(&plgpio->lock, flags);
+ return 0;
+
+err1:
+ clk_disable_unprepare(plgpio->clk);
+err0:
+ pinctrl_free_gpio(gpio);
+ return ret;
+}
+
+static void plgpio_free(struct gpio_chip *chip, unsigned offset)
+{
+ struct plgpio *plgpio = container_of(chip, struct plgpio, chip);
+ int gpio = chip->base + offset;
+ unsigned long flags;
+
+ if (offset >= chip->ngpio)
+ return;
+
+ if (plgpio->regs.enb == -1)
+ goto disable_clk;
+
+ /* get correct offset for "offset" pin */
+ if (plgpio->p2o && (plgpio->p2o_regs & PTO_ENB_REG)) {
+ offset = plgpio->p2o(offset);
+ if (offset == -1)
+ return;
+ }
+
+ spin_lock_irqsave(&plgpio->lock, flags);
+ plgpio_reg_reset(plgpio->base, offset, plgpio->regs.enb);
+ spin_unlock_irqrestore(&plgpio->lock, flags);
+
+disable_clk:
+ if (!IS_ERR(plgpio->clk))
+ clk_disable_unprepare(plgpio->clk);
+
+ pinctrl_free_gpio(gpio);
+}
+
+static int plgpio_to_irq(struct gpio_chip *chip, unsigned offset)
+{
+ struct plgpio *plgpio = container_of(chip, struct plgpio, chip);
+
+ if (plgpio->irq_base < 0)
+ return -EINVAL;
+
+ return irq_find_mapping(plgpio->irq_domain, offset);
+}
+
+/* PLGPIO IRQ */
+static void plgpio_irq_disable(struct irq_data *d)
+{
+ struct plgpio *plgpio = irq_data_get_irq_chip_data(d);
+ int offset = d->irq - plgpio->irq_base;
+ unsigned long flags;
+
+ /* get correct offset for "offset" pin */
+ if (plgpio->p2o && (plgpio->p2o_regs & PTO_IE_REG)) {
+ offset = plgpio->p2o(offset);
+ if (offset == -1)
+ return;
+ }
+
+ spin_lock_irqsave(&plgpio->lock, flags);
+ plgpio_reg_set(plgpio->base, offset, plgpio->regs.ie);
+ spin_unlock_irqrestore(&plgpio->lock, flags);
+}
+
+static void plgpio_irq_enable(struct irq_data *d)
+{
+ struct plgpio *plgpio = irq_data_get_irq_chip_data(d);
+ int offset = d->irq - plgpio->irq_base;
+ unsigned long flags;
+
+ /* get correct offset for "offset" pin */
+ if (plgpio->p2o && (plgpio->p2o_regs & PTO_IE_REG)) {
+ offset = plgpio->p2o(offset);
+ if (offset == -1)
+ return;
+ }
+
+ spin_lock_irqsave(&plgpio->lock, flags);
+ plgpio_reg_reset(plgpio->base, offset, plgpio->regs.ie);
+ spin_unlock_irqrestore(&plgpio->lock, flags);
+}
+
+static int plgpio_irq_set_type(struct irq_data *d, unsigned trigger)
+{
+ struct plgpio *plgpio = irq_data_get_irq_chip_data(d);
+ int offset = d->irq - plgpio->irq_base;
+ void __iomem *reg_off;
+ unsigned int supported_type = 0, val;
+
+ if (offset >= plgpio->chip.ngpio)
+ return -EINVAL;
+
+ if (plgpio->regs.eit == -1)
+ supported_type = IRQ_TYPE_LEVEL_HIGH;
+ else
+ supported_type = IRQ_TYPE_EDGE_RISING | IRQ_TYPE_EDGE_FALLING;
+
+ if (!(trigger & supported_type))
+ return -EINVAL;
+
+ if (plgpio->regs.eit == -1)
+ return 0;
+
+ reg_off = REG_OFFSET(plgpio->base, plgpio->regs.eit, offset);
+ val = readl_relaxed(reg_off);
+
+ offset = PIN_OFFSET(offset);
+ if (trigger & IRQ_TYPE_EDGE_RISING)
+ writel_relaxed(val | (1 << offset), reg_off);
+ else
+ writel_relaxed(val & ~(1 << offset), reg_off);
+
+ return 0;
+}
+
+static struct irq_chip plgpio_irqchip = {
+ .name = "PLGPIO",
+ .irq_enable = plgpio_irq_enable,
+ .irq_disable = plgpio_irq_disable,
+ .irq_set_type = plgpio_irq_set_type,
+};
+
+static void plgpio_irq_handler(unsigned irq, struct irq_desc *desc)
+{
+ struct plgpio *plgpio = irq_get_handler_data(irq);
+ struct irq_chip *irqchip = irq_desc_get_chip(desc);
+ int regs_count, count, pin, offset, i = 0;
+ unsigned long pending;
+
+ count = plgpio->chip.ngpio;
+ regs_count = DIV_ROUND_UP(count, MAX_GPIO_PER_REG);
+
+ chained_irq_enter(irqchip, desc);
+ /* check all plgpio MIS registers for a possible interrupt */
+ for (; i < regs_count; i++) {
+ pending = readl_relaxed(plgpio->base + plgpio->regs.mis +
+ i * sizeof(int *));
+ if (!pending)
+ continue;
+
+ /* clear interrupts */
+ writel_relaxed(~pending, plgpio->base + plgpio->regs.mis +
+ i * sizeof(int *));
+ /*
+ * clear extra bits in last register having gpios < MAX/REG
+ * ex: Suppose there are max 102 plgpios. then last register
+ * must have only (102 - MAX_GPIO_PER_REG * 3) = 6 relevant bits
+ * so, we must not take other 28 bits into consideration for
+ * checking interrupt. so clear those bits.
+ */
+ count = count - i * MAX_GPIO_PER_REG;
+ if (count < MAX_GPIO_PER_REG)
+ pending &= (1 << count) - 1;
+
+ for_each_set_bit(offset, &pending, MAX_GPIO_PER_REG) {
+ /* get correct pin for "offset" */
+ if (plgpio->o2p && (plgpio->p2o_regs & PTO_MIS_REG)) {
+ pin = plgpio->o2p(offset);
+ if (pin == -1)
+ continue;
+ } else
+ pin = offset;
+
+ /* get correct irq line number */
+ pin = i * MAX_GPIO_PER_REG + pin;
+ generic_handle_irq(plgpio_to_irq(&plgpio->chip, pin));
+ }
+ }
+ chained_irq_exit(irqchip, desc);
+}
+
+/*
+ * pin to offset and offset to pin converter functions
+ *
+ * In spear310 there is inconsistency among bit positions in plgpio regiseters,
+ * for different plgpio pins. For example: for pin 27, bit offset is 23, pin
+ * 28-33 are not supported, pin 95 has offset bit 95, bit 100 has offset bit 1
+ */
+static int spear310_p2o(int pin)
+{
+ int offset = pin;
+
+ if (pin <= 27)
+ offset += 4;
+ else if (pin <= 33)
+ offset = -1;
+ else if (pin <= 97)
+ offset -= 2;
+ else if (pin <= 101)
+ offset = 101 - pin;
+ else
+ offset = -1;
+
+ return offset;
+}
+
+int spear310_o2p(int offset)
+{
+ if (offset <= 3)
+ return 101 - offset;
+ else if (offset <= 31)
+ return offset - 4;
+ else
+ return offset + 2;
+}
+
+static int __devinit plgpio_probe_dt(struct platform_device *pdev,
+ struct plgpio *plgpio)
+{
+ struct device_node *np = pdev->dev.of_node;
+ int ret = -EINVAL;
+ u32 val;
+
+ if (of_machine_is_compatible("st,spear310")) {
+ plgpio->p2o = spear310_p2o;
+ plgpio->o2p = spear310_o2p;
+ plgpio->p2o_regs = PTO_WDATA_REG | PTO_DIR_REG | PTO_IE_REG |
+ PTO_RDATA_REG | PTO_MIS_REG;
+ }
+
+ if (!of_property_read_u32(np, "st-plgpio,ngpio", &val)) {
+ plgpio->chip.ngpio = val;
+ } else {
+ dev_err(&pdev->dev, "DT: Invalid ngpio field\n");
+ goto end;
+ }
+
+ if (!of_property_read_u32(np, "st-plgpio,enb-reg", &val))
+ plgpio->regs.enb = val;
+ else
+ plgpio->regs.enb = -1;
+
+ if (!of_property_read_u32(np, "st-plgpio,wdata-reg", &val)) {
+ plgpio->regs.wdata = val;
+ } else {
+ dev_err(&pdev->dev, "DT: Invalid wdata reg\n");
+ goto end;
+ }
+
+ if (!of_property_read_u32(np, "st-plgpio,dir-reg", &val)) {
+ plgpio->regs.dir = val;
+ } else {
+ dev_err(&pdev->dev, "DT: Invalid dir reg\n");
+ goto end;
+ }
+
+ if (!of_property_read_u32(np, "st-plgpio,ie-reg", &val)) {
+ plgpio->regs.ie = val;
+ } else {
+ dev_err(&pdev->dev, "DT: Invalid ie reg\n");
+ goto end;
+ }
+
+ if (!of_property_read_u32(np, "st-plgpio,rdata-reg", &val)) {
+ plgpio->regs.rdata = val;
+ } else {
+ dev_err(&pdev->dev, "DT: Invalid rdata reg\n");
+ goto end;
+ }
+
+ if (!of_property_read_u32(np, "st-plgpio,mis-reg", &val)) {
+ plgpio->regs.mis = val;
+ } else {
+ dev_err(&pdev->dev, "DT: Invalid mis reg\n");
+ goto end;
+ }
+
+ if (!of_property_read_u32(np, "st-plgpio,eit-reg", &val))
+ plgpio->regs.eit = val;
+ else
+ plgpio->regs.eit = -1;
+
+ return 0;
+
+end:
+ return ret;
+}
+static int __devinit plgpio_probe(struct platform_device *pdev)
+{
+ struct device_node *np = pdev->dev.of_node;
+ struct plgpio *plgpio;
+ struct resource *res;
+ int ret, irq, i;
+
+ res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+ if (!res) {
+ dev_err(&pdev->dev, "invalid IORESOURCE_MEM\n");
+ return -EBUSY;
+ }
+
+ plgpio = devm_kzalloc(&pdev->dev, sizeof(*plgpio), GFP_KERNEL);
+ if (!plgpio) {
+ dev_err(&pdev->dev, "memory allocation fail\n");
+ return -ENOMEM;
+ }
+
+ plgpio->base = devm_request_and_ioremap(&pdev->dev, res);
+ if (!plgpio->base) {
+ dev_err(&pdev->dev, "request and ioremap fail\n");
+ return -ENOMEM;
+ }
+
+ ret = plgpio_probe_dt(pdev, plgpio);
+ if (ret) {
+ dev_err(&pdev->dev, "DT probe failed\n");
+ return ret;
+ }
+
+ plgpio->clk = devm_clk_get(&pdev->dev, NULL);
+ if (IS_ERR(plgpio->clk))
+ dev_warn(&pdev->dev, "clk_get() failed, work without it\n");
+
+#ifdef CONFIG_PM
+ plgpio->csave_regs = devm_kzalloc(&pdev->dev,
+ sizeof(*plgpio->csave_regs) *
+ DIV_ROUND_UP(plgpio->chip.ngpio, MAX_GPIO_PER_REG),
+ GFP_KERNEL);
+ if (!plgpio->csave_regs) {
+ dev_err(&pdev->dev, "csave registers memory allocation fail\n");
+ return -ENOMEM;
+ }
+#endif
+
+ platform_set_drvdata(pdev, plgpio);
+ spin_lock_init(&plgpio->lock);
+
+ plgpio->irq_base = -1;
+ plgpio->chip.base = -1;
+ plgpio->chip.request = plgpio_request;
+ plgpio->chip.free = plgpio_free;
+ plgpio->chip.direction_input = plgpio_direction_input;
+ plgpio->chip.direction_output = plgpio_direction_output;
+ plgpio->chip.get = plgpio_get_value;
+ plgpio->chip.set = plgpio_set_value;
+ plgpio->chip.to_irq = plgpio_to_irq;
+ plgpio->chip.label = dev_name(&pdev->dev);
+ plgpio->chip.dev = &pdev->dev;
+ plgpio->chip.owner = THIS_MODULE;
+
+ ret = gpiochip_add(&plgpio->chip);
+ if (ret) {
+ dev_err(&pdev->dev, "unable to add gpio chip\n");
+ return ret;
+ }
+
+ irq = platform_get_irq(pdev, 0);
+ if (irq < 0) {
+ dev_info(&pdev->dev, "irqs not supported\n");
+ return 0;
+ }
+
+ plgpio->irq_base = irq_alloc_descs(-1, 0, plgpio->chip.ngpio, 0);
+ if (IS_ERR_VALUE(plgpio->irq_base)) {
+ /* we would not support irq for gpio */
+ dev_warn(&pdev->dev, "couldn't allocate irq base\n");
+ return 0;
+ }
+
+ plgpio->irq_domain = irq_domain_add_legacy(np, plgpio->chip.ngpio,
+ plgpio->irq_base, 0, &irq_domain_simple_ops, NULL);
+ if (WARN_ON(!plgpio->irq_domain)) {
+ dev_err(&pdev->dev, "irq domain init failed\n");
+ irq_free_descs(plgpio->irq_base, plgpio->chip.ngpio);
+ ret = -ENXIO;
+ goto remove_gpiochip;
+ }
+
+ irq_set_chained_handler(irq, plgpio_irq_handler);
+ for (i = 0; i < plgpio->chip.ngpio; i++) {
+ irq_set_chip_and_handler(i + plgpio->irq_base, &plgpio_irqchip,
+ handle_simple_irq);
+ set_irq_flags(i + plgpio->irq_base, IRQF_VALID);
+ irq_set_chip_data(i + plgpio->irq_base, plgpio);
+ }
+
+ irq_set_handler_data(irq, plgpio);
+ dev_info(&pdev->dev, "PLGPIO registered with IRQs\n");
+
+ return 0;
+
+remove_gpiochip:
+ dev_info(&pdev->dev, "Remove gpiochip\n");
+ if (gpiochip_remove(&plgpio->chip))
+ dev_err(&pdev->dev, "unable to remove gpiochip\n");
+
+ return ret;
+}
+
+#ifdef CONFIG_PM
+static int plgpio_suspend(struct device *dev)
+{
+ struct plgpio *plgpio = dev_get_drvdata(dev);
+ int i, reg_count = DIV_ROUND_UP(plgpio->chip.ngpio, MAX_GPIO_PER_REG);
+ void __iomem *off;
+
+ for (i = 0; i < reg_count; i++) {
+ off = plgpio->base + i * sizeof(int *);
+
+ if (plgpio->regs.enb != -1)
+ plgpio->csave_regs[i].enb =
+ readl_relaxed(plgpio->regs.enb + off);
+ if (plgpio->regs.eit != -1)
+ plgpio->csave_regs[i].eit =
+ readl_relaxed(plgpio->regs.eit + off);
+ plgpio->csave_regs[i].wdata = readl_relaxed(plgpio->regs.wdata +
+ off);
+ plgpio->csave_regs[i].dir = readl_relaxed(plgpio->regs.dir +
+ off);
+ plgpio->csave_regs[i].ie = readl_relaxed(plgpio->regs.ie + off);
+ }
+
+ return 0;
+}
+
+/*
+ * This is used to correct the values in end registers. End registers contain
+ * extra bits that might be used for other purpose in platform. So, we shouldn't
+ * overwrite these bits. This macro, reads given register again, preserves other
+ * bit values (non-plgpio bits), and retain captured value (plgpio bits).
+ */
+#define plgpio_prepare_reg(__reg, _off, _mask, _tmp) \
+{ \
+ _tmp = readl_relaxed(plgpio->regs.__reg + _off); \
+ _tmp &= ~_mask; \
+ plgpio->csave_regs[i].__reg = \
+ _tmp | (plgpio->csave_regs[i].__reg & _mask); \
+}
+
+static int plgpio_resume(struct device *dev)
+{
+ struct plgpio *plgpio = dev_get_drvdata(dev);
+ int i, reg_count = DIV_ROUND_UP(plgpio->chip.ngpio, MAX_GPIO_PER_REG);
+ void __iomem *off;
+ u32 mask, tmp;
+
+ for (i = 0; i < reg_count; i++) {
+ off = plgpio->base + i * sizeof(int *);
+
+ if (i == reg_count - 1) {
+ mask = (1 << (plgpio->chip.ngpio - i *
+ MAX_GPIO_PER_REG)) - 1;
+
+ if (plgpio->regs.enb != -1)
+ plgpio_prepare_reg(enb, off, mask, tmp);
+
+ if (plgpio->regs.eit != -1)
+ plgpio_prepare_reg(eit, off, mask, tmp);
+
+ plgpio_prepare_reg(wdata, off, mask, tmp);
+ plgpio_prepare_reg(dir, off, mask, tmp);
+ plgpio_prepare_reg(ie, off, mask, tmp);
+ }
+
+ writel_relaxed(plgpio->csave_regs[i].wdata, plgpio->regs.wdata +
+ off);
+ writel_relaxed(plgpio->csave_regs[i].dir, plgpio->regs.dir +
+ off);
+
+ if (plgpio->regs.eit != -1)
+ writel_relaxed(plgpio->csave_regs[i].eit,
+ plgpio->regs.eit + off);
+
+ writel_relaxed(plgpio->csave_regs[i].ie, plgpio->regs.ie + off);
+
+ if (plgpio->regs.enb != -1)
+ writel_relaxed(plgpio->csave_regs[i].enb,
+ plgpio->regs.enb + off);
+ }
+
+ return 0;
+}
+#endif
+
+static SIMPLE_DEV_PM_OPS(plgpio_dev_pm_ops, plgpio_suspend, plgpio_resume);
+
+static const struct of_device_id plgpio_of_match[] = {
+ { .compatible = "st,spear-plgpio" },
+ {}
+};
+MODULE_DEVICE_TABLE(of, plgpio_of_match);
+
+static struct platform_driver plgpio_driver = {
+ .probe = plgpio_probe,
+ .driver = {
+ .owner = THIS_MODULE,
+ .name = "spear-plgpio",
+ .pm = &plgpio_dev_pm_ops,
+ .of_match_table = of_match_ptr(plgpio_of_match),
+ },
+};
+
+static int __init plgpio_init(void)
+{
+ return platform_driver_register(&plgpio_driver);
+}
+subsys_initcall(plgpio_init);
+
+MODULE_AUTHOR("Viresh Kumar <viresh.kumar@linaro.org>");
+MODULE_DESCRIPTION("ST Microlectronics SPEAr PLGPIO driver");
+MODULE_LICENSE("GPL");
diff --git a/drivers/pinctrl/spear/pinctrl-spear.c b/drivers/pinctrl/spear/pinctrl-spear.c
index b1fd6ee33c6..cbca6dc66eb 100644
--- a/drivers/pinctrl/spear/pinctrl-spear.c
+++ b/drivers/pinctrl/spear/pinctrl-spear.c
@@ -18,6 +18,7 @@
#include <linux/module.h>
#include <linux/of.h>
#include <linux/of_address.h>
+#include <linux/of_gpio.h>
#include <linux/pinctrl/machine.h>
#include <linux/pinctrl/pinctrl.h>
#include <linux/pinctrl/pinmux.h>
@@ -38,6 +39,28 @@ static inline void pmx_writel(struct spear_pmx *pmx, u32 val, u32 reg)
writel_relaxed(val, pmx->vbase + reg);
}
+static void muxregs_endisable(struct spear_pmx *pmx,
+ struct spear_muxreg *muxregs, u8 count, bool enable)
+{
+ struct spear_muxreg *muxreg;
+ u32 val, temp, j;
+
+ for (j = 0; j < count; j++) {
+ muxreg = &muxregs[j];
+
+ val = pmx_readl(pmx, muxreg->reg);
+ val &= ~muxreg->mask;
+
+ if (enable)
+ temp = muxreg->val;
+ else
+ temp = ~muxreg->val;
+
+ val |= muxreg->mask & temp;
+ pmx_writel(pmx, val, muxreg->reg);
+ }
+}
+
static int set_mode(struct spear_pmx *pmx, int mode)
{
struct spear_pmx_mode *pmx_mode = NULL;
@@ -70,6 +93,17 @@ static int set_mode(struct spear_pmx *pmx, int mode)
return 0;
}
+void __devinit
+pmx_init_gpio_pingroup_addr(struct spear_gpio_pingroup *gpio_pingroup,
+ unsigned count, u16 reg)
+{
+ int i = 0, j = 0;
+
+ for (; i < count; i++)
+ for (; j < gpio_pingroup[i].nmuxregs; j++)
+ gpio_pingroup[i].muxregs[j].reg = reg;
+}
+
void __devinit pmx_init_addr(struct spear_pinctrl_machdata *machdata, u16 reg)
{
struct spear_pingroup *pgroup;
@@ -216,9 +250,7 @@ static int spear_pinctrl_endisable(struct pinctrl_dev *pctldev,
struct spear_pmx *pmx = pinctrl_dev_get_drvdata(pctldev);
const struct spear_pingroup *pgroup;
const struct spear_modemux *modemux;
- struct spear_muxreg *muxreg;
- u32 val, temp;
- int i, j;
+ int i;
bool found = false;
pgroup = pmx->machdata->groups[group];
@@ -233,20 +265,8 @@ static int spear_pinctrl_endisable(struct pinctrl_dev *pctldev,
}
found = true;
- for (j = 0; j < modemux->nmuxregs; j++) {
- muxreg = &modemux->muxregs[j];
-
- val = pmx_readl(pmx, muxreg->reg);
- val &= ~muxreg->mask;
-
- if (enable)
- temp = muxreg->val;
- else
- temp = ~muxreg->val;
-
- val |= muxreg->mask & temp;
- pmx_writel(pmx, val, muxreg->reg);
- }
+ muxregs_endisable(pmx, modemux->muxregs, modemux->nmuxregs,
+ enable);
}
if (!found) {
@@ -270,12 +290,65 @@ static void spear_pinctrl_disable(struct pinctrl_dev *pctldev,
spear_pinctrl_endisable(pctldev, function, group, false);
}
+/* gpio with pinmux */
+static struct spear_gpio_pingroup *get_gpio_pingroup(struct spear_pmx *pmx,
+ unsigned pin)
+{
+ struct spear_gpio_pingroup *gpio_pingroup;
+ int i = 0, j;
+
+ if (!pmx->machdata->gpio_pingroups)
+ return NULL;
+
+ for (; i < pmx->machdata->ngpio_pingroups; i++) {
+ gpio_pingroup = &pmx->machdata->gpio_pingroups[i];
+
+ for (j = 0; j < gpio_pingroup->npins; j++) {
+ if (gpio_pingroup->pins[j] == pin)
+ return gpio_pingroup;
+ }
+ }
+
+ return ERR_PTR(-EINVAL);
+}
+
+static int gpio_request_endisable(struct pinctrl_dev *pctldev,
+ struct pinctrl_gpio_range *range, unsigned offset, bool enable)
+{
+ struct spear_pmx *pmx = pinctrl_dev_get_drvdata(pctldev);
+ struct spear_gpio_pingroup *gpio_pingroup;
+
+ gpio_pingroup = get_gpio_pingroup(pmx, offset);
+ if (IS_ERR(gpio_pingroup))
+ return PTR_ERR(gpio_pingroup);
+
+ if (gpio_pingroup)
+ muxregs_endisable(pmx, gpio_pingroup->muxregs,
+ gpio_pingroup->nmuxregs, enable);
+
+ return 0;
+}
+
+static int gpio_request_enable(struct pinctrl_dev *pctldev,
+ struct pinctrl_gpio_range *range, unsigned offset)
+{
+ return gpio_request_endisable(pctldev, range, offset, true);
+}
+
+static void gpio_disable_free(struct pinctrl_dev *pctldev,
+ struct pinctrl_gpio_range *range, unsigned offset)
+{
+ gpio_request_endisable(pctldev, range, offset, false);
+}
+
static struct pinmux_ops spear_pinmux_ops = {
.get_functions_count = spear_pinctrl_get_funcs_count,
.get_function_name = spear_pinctrl_get_func_name,
.get_function_groups = spear_pinctrl_get_func_groups,
.enable = spear_pinctrl_enable,
.disable = spear_pinctrl_disable,
+ .gpio_request_enable = gpio_request_enable,
+ .gpio_disable_free = gpio_disable_free,
};
static struct pinctrl_desc spear_pinctrl_desc = {
diff --git a/drivers/pinctrl/spear/pinctrl-spear.h b/drivers/pinctrl/spear/pinctrl-spear.h
index d950eb78d93..94f142c10c1 100644
--- a/drivers/pinctrl/spear/pinctrl-spear.h
+++ b/drivers/pinctrl/spear/pinctrl-spear.h
@@ -12,6 +12,7 @@
#ifndef __PINMUX_SPEAR_H__
#define __PINMUX_SPEAR_H__
+#include <linux/gpio.h>
#include <linux/pinctrl/pinctrl.h>
#include <linux/types.h>
@@ -46,6 +47,44 @@ struct spear_muxreg {
u32 val;
};
+struct spear_gpio_pingroup {
+ const unsigned *pins;
+ unsigned npins;
+ struct spear_muxreg *muxregs;
+ u8 nmuxregs;
+};
+
+/* ste: set to enable */
+#define DEFINE_MUXREG(__pins, __muxreg, __mask, __ste) \
+static struct spear_muxreg __pins##_muxregs[] = { \
+ { \
+ .reg = __muxreg, \
+ .mask = __mask, \
+ .val = __ste ? __mask : 0, \
+ }, \
+}
+
+#define DEFINE_2_MUXREG(__pins, __muxreg1, __muxreg2, __mask, __ste1, __ste2) \
+static struct spear_muxreg __pins##_muxregs[] = { \
+ { \
+ .reg = __muxreg1, \
+ .mask = __mask, \
+ .val = __ste1 ? __mask : 0, \
+ }, { \
+ .reg = __muxreg2, \
+ .mask = __mask, \
+ .val = __ste2 ? __mask : 0, \
+ }, \
+}
+
+#define GPIO_PINGROUP(__pins) \
+ { \
+ .pins = __pins, \
+ .npins = ARRAY_SIZE(__pins), \
+ .muxregs = __pins##_muxregs, \
+ .nmuxregs = ARRAY_SIZE(__pins##_muxregs), \
+ }
+
/**
* struct spear_modemux - SPEAr mode mux configuration
* @modes: mode ids supported by this group of muxregs
@@ -100,6 +139,8 @@ struct spear_function {
* @nfunctions: The numbmer of entries in @functions.
* @groups: An array describing all pin groups the pin SoC supports.
* @ngroups: The numbmer of entries in @groups.
+ * @gpio_pingroups: gpio pingroups
+ * @ngpio_pingroups: gpio pingroups count
*
* @modes_supported: Does SoC support modes
* @mode: mode configured from probe
@@ -113,6 +154,8 @@ struct spear_pinctrl_machdata {
unsigned nfunctions;
struct spear_pingroup **groups;
unsigned ngroups;
+ struct spear_gpio_pingroup *gpio_pingroups;
+ unsigned ngpio_pingroups;
bool modes_supported;
u16 mode;
@@ -136,6 +179,9 @@ struct spear_pmx {
/* exported routines */
void __devinit pmx_init_addr(struct spear_pinctrl_machdata *machdata, u16 reg);
+void __devinit
+pmx_init_gpio_pingroup_addr(struct spear_gpio_pingroup *gpio_pingroup,
+ unsigned count, u16 reg);
int __devinit spear_pinctrl_probe(struct platform_device *pdev,
struct spear_pinctrl_machdata *machdata);
int __devexit spear_pinctrl_remove(struct platform_device *pdev);
diff --git a/drivers/pinctrl/spear/pinctrl-spear1310.c b/drivers/pinctrl/spear/pinctrl-spear1310.c
index 0436fc7895d..30134f72745 100644
--- a/drivers/pinctrl/spear/pinctrl-spear1310.c
+++ b/drivers/pinctrl/spear/pinctrl-spear1310.c
@@ -2418,6 +2418,268 @@ static struct spear_function *spear1310_functions[] = {
&gpt64_function,
};
+static const unsigned pin18[] = { 18, };
+static const unsigned pin19[] = { 19, };
+static const unsigned pin20[] = { 20, };
+static const unsigned pin21[] = { 21, };
+static const unsigned pin22[] = { 22, };
+static const unsigned pin23[] = { 23, };
+static const unsigned pin54[] = { 54, };
+static const unsigned pin55[] = { 55, };
+static const unsigned pin56[] = { 56, };
+static const unsigned pin57[] = { 57, };
+static const unsigned pin58[] = { 58, };
+static const unsigned pin59[] = { 59, };
+static const unsigned pin60[] = { 60, };
+static const unsigned pin61[] = { 61, };
+static const unsigned pin62[] = { 62, };
+static const unsigned pin63[] = { 63, };
+static const unsigned pin143[] = { 143, };
+static const unsigned pin144[] = { 144, };
+static const unsigned pin145[] = { 145, };
+static const unsigned pin146[] = { 146, };
+static const unsigned pin147[] = { 147, };
+static const unsigned pin148[] = { 148, };
+static const unsigned pin149[] = { 149, };
+static const unsigned pin150[] = { 150, };
+static const unsigned pin151[] = { 151, };
+static const unsigned pin152[] = { 152, };
+static const unsigned pin205[] = { 205, };
+static const unsigned pin206[] = { 206, };
+static const unsigned pin211[] = { 211, };
+static const unsigned pin212[] = { 212, };
+static const unsigned pin213[] = { 213, };
+static const unsigned pin214[] = { 214, };
+static const unsigned pin215[] = { 215, };
+static const unsigned pin216[] = { 216, };
+static const unsigned pin217[] = { 217, };
+static const unsigned pin218[] = { 218, };
+static const unsigned pin219[] = { 219, };
+static const unsigned pin220[] = { 220, };
+static const unsigned pin221[] = { 221, };
+static const unsigned pin222[] = { 222, };
+static const unsigned pin223[] = { 223, };
+static const unsigned pin224[] = { 224, };
+static const unsigned pin225[] = { 225, };
+static const unsigned pin226[] = { 226, };
+static const unsigned pin227[] = { 227, };
+static const unsigned pin228[] = { 228, };
+static const unsigned pin229[] = { 229, };
+static const unsigned pin230[] = { 230, };
+static const unsigned pin231[] = { 231, };
+static const unsigned pin232[] = { 232, };
+static const unsigned pin233[] = { 233, };
+static const unsigned pin234[] = { 234, };
+static const unsigned pin235[] = { 235, };
+static const unsigned pin236[] = { 236, };
+static const unsigned pin237[] = { 237, };
+static const unsigned pin238[] = { 238, };
+static const unsigned pin239[] = { 239, };
+static const unsigned pin240[] = { 240, };
+static const unsigned pin241[] = { 241, };
+static const unsigned pin242[] = { 242, };
+static const unsigned pin243[] = { 243, };
+static const unsigned pin244[] = { 244, };
+static const unsigned pin245[] = { 245, };
+
+static const unsigned pin_grp0[] = { 173, 174, };
+static const unsigned pin_grp1[] = { 175, 185, 188, 197, 198, };
+static const unsigned pin_grp2[] = { 176, 177, 178, 179, 184, 186, 187, 189,
+ 190, 191, 192, };
+static const unsigned pin_grp3[] = { 180, 181, 182, 183, 193, 194, 195, 196, };
+static const unsigned pin_grp4[] = { 199, 200, };
+static const unsigned pin_grp5[] = { 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74,
+ 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, };
+static const unsigned pin_grp6[] = { 86, 87, 88, 89, 90, 91, 92, 93, };
+static const unsigned pin_grp7[] = { 98, 99, };
+static const unsigned pin_grp8[] = { 158, 159, 160, 161, 162, 163, 164, 165,
+ 166, 167, 168, 169, 170, 171, 172, };
+
+/* Define muxreg arrays */
+DEFINE_2_MUXREG(i2c0_pins, PAD_FUNCTION_EN_0, PAD_DIRECTION_SEL_0, PMX_I2C0_MASK, 0, 1);
+DEFINE_2_MUXREG(ssp0_pins, PAD_FUNCTION_EN_0, PAD_DIRECTION_SEL_0, PMX_SSP0_MASK, 0, 1);
+DEFINE_2_MUXREG(ssp0_cs0_pins, PAD_FUNCTION_EN_2, PAD_DIRECTION_SEL_2, PMX_SSP0_CS0_MASK, 0, 1);
+DEFINE_2_MUXREG(ssp0_cs1_2_pins, PAD_FUNCTION_EN_2, PAD_DIRECTION_SEL_2, PMX_SSP0_CS1_2_MASK, 0, 1);
+DEFINE_2_MUXREG(i2s0_pins, PAD_FUNCTION_EN_0, PAD_DIRECTION_SEL_0, PMX_I2S0_MASK, 0, 1);
+DEFINE_2_MUXREG(i2s1_pins, PAD_FUNCTION_EN_1, PAD_DIRECTION_SEL_1, PMX_I2S1_MASK, 0, 1);
+DEFINE_2_MUXREG(clcd_pins, PAD_FUNCTION_EN_0, PAD_DIRECTION_SEL_0, PMX_CLCD1_MASK, 0, 1);
+DEFINE_2_MUXREG(clcd_high_res_pins, PAD_FUNCTION_EN_1, PAD_DIRECTION_SEL_1, PMX_CLCD2_MASK, 0, 1);
+DEFINE_2_MUXREG(pin18, PAD_FUNCTION_EN_0, PAD_DIRECTION_SEL_0, PMX_EGPIO15_MASK, 0, 1);
+DEFINE_2_MUXREG(pin19, PAD_FUNCTION_EN_0, PAD_DIRECTION_SEL_0, PMX_EGPIO14_MASK, 0, 1);
+DEFINE_2_MUXREG(pin20, PAD_FUNCTION_EN_0, PAD_DIRECTION_SEL_0, PMX_EGPIO13_MASK, 0, 1);
+DEFINE_2_MUXREG(pin21, PAD_FUNCTION_EN_0, PAD_DIRECTION_SEL_0, PMX_EGPIO12_MASK, 0, 1);
+DEFINE_2_MUXREG(pin22, PAD_FUNCTION_EN_0, PAD_DIRECTION_SEL_0, PMX_EGPIO11_MASK, 0, 1);
+DEFINE_2_MUXREG(pin23, PAD_FUNCTION_EN_0, PAD_DIRECTION_SEL_0, PMX_EGPIO10_MASK, 0, 1);
+DEFINE_2_MUXREG(pin143, PAD_FUNCTION_EN_0, PAD_DIRECTION_SEL_0, PMX_EGPIO00_MASK, 0, 1);
+DEFINE_2_MUXREG(pin144, PAD_FUNCTION_EN_0, PAD_DIRECTION_SEL_0, PMX_EGPIO01_MASK, 0, 1);
+DEFINE_2_MUXREG(pin145, PAD_FUNCTION_EN_0, PAD_DIRECTION_SEL_0, PMX_EGPIO02_MASK, 0, 1);
+DEFINE_2_MUXREG(pin146, PAD_FUNCTION_EN_0, PAD_DIRECTION_SEL_0, PMX_EGPIO03_MASK, 0, 1);
+DEFINE_2_MUXREG(pin147, PAD_FUNCTION_EN_0, PAD_DIRECTION_SEL_0, PMX_EGPIO04_MASK, 0, 1);
+DEFINE_2_MUXREG(pin148, PAD_FUNCTION_EN_0, PAD_DIRECTION_SEL_0, PMX_EGPIO05_MASK, 0, 1);
+DEFINE_2_MUXREG(pin149, PAD_FUNCTION_EN_0, PAD_DIRECTION_SEL_0, PMX_EGPIO06_MASK, 0, 1);
+DEFINE_2_MUXREG(pin150, PAD_FUNCTION_EN_0, PAD_DIRECTION_SEL_0, PMX_EGPIO07_MASK, 0, 1);
+DEFINE_2_MUXREG(pin151, PAD_FUNCTION_EN_0, PAD_DIRECTION_SEL_0, PMX_EGPIO08_MASK, 0, 1);
+DEFINE_2_MUXREG(pin152, PAD_FUNCTION_EN_0, PAD_DIRECTION_SEL_0, PMX_EGPIO09_MASK, 0, 1);
+DEFINE_2_MUXREG(smi_2_chips_pins, PAD_FUNCTION_EN_0, PAD_DIRECTION_SEL_0, PMX_SMI_MASK, 0, 1);
+DEFINE_2_MUXREG(pin54, PAD_FUNCTION_EN_1, PAD_DIRECTION_SEL_1, PMX_SMINCS3_MASK, 0, 1);
+DEFINE_2_MUXREG(pin55, PAD_FUNCTION_EN_1, PAD_DIRECTION_SEL_1, PMX_SMINCS2_MASK, 0, 1);
+DEFINE_2_MUXREG(pin56, PAD_FUNCTION_EN_1, PAD_DIRECTION_SEL_1, PMX_NFRSTPWDWN3_MASK, 0, 1);
+DEFINE_2_MUXREG(pin57, PAD_FUNCTION_EN_0, PAD_DIRECTION_SEL_0, PMX_NFRSTPWDWN2_MASK, 0, 1);
+DEFINE_2_MUXREG(pin58, PAD_FUNCTION_EN_0, PAD_DIRECTION_SEL_0, PMX_NFRSTPWDWN1_MASK, 0, 1);
+DEFINE_2_MUXREG(pin59, PAD_FUNCTION_EN_0, PAD_DIRECTION_SEL_0, PMX_NFRSTPWDWN0_MASK, 0, 1);
+DEFINE_2_MUXREG(pin60, PAD_FUNCTION_EN_0, PAD_DIRECTION_SEL_0, PMX_NFWPRT3_MASK, 0, 1);
+DEFINE_2_MUXREG(pin61, PAD_FUNCTION_EN_0, PAD_DIRECTION_SEL_0, PMX_NFCE3_MASK, 0, 1);
+DEFINE_2_MUXREG(pin62, PAD_FUNCTION_EN_0, PAD_DIRECTION_SEL_0, PMX_NFAD25_MASK, 0, 1);
+DEFINE_2_MUXREG(pin63, PAD_FUNCTION_EN_0, PAD_DIRECTION_SEL_0, PMX_NFAD24_MASK, 0, 1);
+DEFINE_2_MUXREG(pin_grp0, PAD_FUNCTION_EN_0, PAD_DIRECTION_SEL_0, PMX_GMIICLK_MASK, 0, 1);
+DEFINE_2_MUXREG(pin_grp1, PAD_FUNCTION_EN_0, PAD_DIRECTION_SEL_0, PMX_GMIICOL_CRS_XFERER_MIITXCLK_MASK, 0, 1);
+DEFINE_2_MUXREG(pin_grp2, PAD_FUNCTION_EN_0, PAD_DIRECTION_SEL_0, PMX_RXCLK_RDV_TXEN_D03_MASK, 0, 1);
+DEFINE_2_MUXREG(pin_grp3, PAD_FUNCTION_EN_0, PAD_DIRECTION_SEL_0, PMX_GMIID47_MASK, 0, 1);
+DEFINE_2_MUXREG(pin_grp4, PAD_FUNCTION_EN_0, PAD_DIRECTION_SEL_0, PMX_MDC_MDIO_MASK, 0, 1);
+DEFINE_2_MUXREG(pin_grp5, PAD_FUNCTION_EN_0, PAD_DIRECTION_SEL_0, PMX_NFAD23_MASK, 0, 1);
+DEFINE_2_MUXREG(pin_grp6, PAD_FUNCTION_EN_0, PAD_DIRECTION_SEL_0, PMX_MCI_DATA8_15_MASK, 0, 1);
+DEFINE_2_MUXREG(pin_grp7, PAD_FUNCTION_EN_1, PAD_DIRECTION_SEL_1, PMX_NFCE2_MASK, 0, 1);
+DEFINE_2_MUXREG(pin_grp8, PAD_FUNCTION_EN_1, PAD_DIRECTION_SEL_1, PMX_NAND8_MASK, 0, 1);
+DEFINE_2_MUXREG(nand_16bit_pins, PAD_FUNCTION_EN_1, PAD_DIRECTION_SEL_1, PMX_NAND16BIT_1_MASK, 0, 1);
+DEFINE_2_MUXREG(pin205, PAD_FUNCTION_EN_1, PAD_DIRECTION_SEL_1, PMX_KBD_COL1_MASK | PMX_NFCE1_MASK, 0, 1);
+DEFINE_2_MUXREG(pin206, PAD_FUNCTION_EN_1, PAD_DIRECTION_SEL_1, PMX_KBD_COL0_MASK | PMX_NFCE2_MASK, 0, 1);
+DEFINE_2_MUXREG(pin211, PAD_FUNCTION_EN_1, PAD_DIRECTION_SEL_1, PMX_KBD_ROW1_MASK | PMX_NFWPRT1_MASK, 0, 1);
+DEFINE_2_MUXREG(pin212, PAD_FUNCTION_EN_1, PAD_DIRECTION_SEL_1, PMX_KBD_ROW0_MASK | PMX_NFWPRT2_MASK, 0, 1);
+DEFINE_2_MUXREG(pin213, PAD_FUNCTION_EN_1, PAD_DIRECTION_SEL_1, PMX_MCIDATA0_MASK, 0, 1);
+DEFINE_2_MUXREG(pin214, PAD_FUNCTION_EN_1, PAD_DIRECTION_SEL_1, PMX_MCIDATA1_MASK, 0, 1);
+DEFINE_2_MUXREG(pin215, PAD_FUNCTION_EN_1, PAD_DIRECTION_SEL_1, PMX_MCIDATA2_MASK, 0, 1);
+DEFINE_2_MUXREG(pin216, PAD_FUNCTION_EN_1, PAD_DIRECTION_SEL_1, PMX_MCIDATA3_MASK, 0, 1);
+DEFINE_2_MUXREG(pin217, PAD_FUNCTION_EN_1, PAD_DIRECTION_SEL_1, PMX_MCIDATA4_MASK, 0, 1);
+DEFINE_2_MUXREG(pin218, PAD_FUNCTION_EN_2, PAD_DIRECTION_SEL_2, PMX_MCIDATA5_MASK, 0, 1);
+DEFINE_2_MUXREG(pin219, PAD_FUNCTION_EN_2, PAD_DIRECTION_SEL_2, PMX_MCIDATA6_MASK, 0, 1);
+DEFINE_2_MUXREG(pin220, PAD_FUNCTION_EN_2, PAD_DIRECTION_SEL_2, PMX_MCIDATA7_MASK, 0, 1);
+DEFINE_2_MUXREG(pin221, PAD_FUNCTION_EN_2, PAD_DIRECTION_SEL_2, PMX_MCIDATA1SD_MASK, 0, 1);
+DEFINE_2_MUXREG(pin222, PAD_FUNCTION_EN_2, PAD_DIRECTION_SEL_2, PMX_MCIDATA2SD_MASK, 0, 1);
+DEFINE_2_MUXREG(pin223, PAD_FUNCTION_EN_2, PAD_DIRECTION_SEL_2, PMX_MCIDATA3SD_MASK, 0, 1);
+DEFINE_2_MUXREG(pin224, PAD_FUNCTION_EN_2, PAD_DIRECTION_SEL_2, PMX_MCIADDR0ALE_MASK, 0, 1);
+DEFINE_2_MUXREG(pin225, PAD_FUNCTION_EN_2, PAD_DIRECTION_SEL_2, PMX_MCIADDR1CLECLK_MASK, 0, 1);
+DEFINE_2_MUXREG(pin226, PAD_FUNCTION_EN_2, PAD_DIRECTION_SEL_2, PMX_MCIADDR2_MASK, 0, 1);
+DEFINE_2_MUXREG(pin227, PAD_FUNCTION_EN_2, PAD_DIRECTION_SEL_2, PMX_MCICECF_MASK, 0, 1);
+DEFINE_2_MUXREG(pin228, PAD_FUNCTION_EN_2, PAD_DIRECTION_SEL_2, PMX_MCICEXD_MASK, 0, 1);
+DEFINE_2_MUXREG(pin229, PAD_FUNCTION_EN_2, PAD_DIRECTION_SEL_2, PMX_MCICESDMMC_MASK, 0, 1);
+DEFINE_2_MUXREG(pin230, PAD_FUNCTION_EN_2, PAD_DIRECTION_SEL_2, PMX_MCICDCF1_MASK, 0, 1);
+DEFINE_2_MUXREG(pin231, PAD_FUNCTION_EN_2, PAD_DIRECTION_SEL_2, PMX_MCICDCF2_MASK, 0, 1);
+DEFINE_2_MUXREG(pin232, PAD_FUNCTION_EN_2, PAD_DIRECTION_SEL_2, PMX_MCICDXD_MASK, 0, 1);
+DEFINE_2_MUXREG(pin233, PAD_FUNCTION_EN_2, PAD_DIRECTION_SEL_2, PMX_MCICDSDMMC_MASK, 0, 1);
+DEFINE_2_MUXREG(pin234, PAD_FUNCTION_EN_2, PAD_DIRECTION_SEL_2, PMX_MCIDATADIR_MASK, 0, 1);
+DEFINE_2_MUXREG(pin235, PAD_FUNCTION_EN_2, PAD_DIRECTION_SEL_2, PMX_MCIDMARQWP_MASK, 0, 1);
+DEFINE_2_MUXREG(pin236, PAD_FUNCTION_EN_2, PAD_DIRECTION_SEL_2, PMX_MCIIORDRE_MASK, 0, 1);
+DEFINE_2_MUXREG(pin237, PAD_FUNCTION_EN_2, PAD_DIRECTION_SEL_2, PMX_MCIIOWRWE_MASK, 0, 1);
+DEFINE_2_MUXREG(pin238, PAD_FUNCTION_EN_2, PAD_DIRECTION_SEL_2, PMX_MCIRESETCF_MASK, 0, 1);
+DEFINE_2_MUXREG(pin239, PAD_FUNCTION_EN_2, PAD_DIRECTION_SEL_2, PMX_MCICS0CE_MASK, 0, 1);
+DEFINE_2_MUXREG(pin240, PAD_FUNCTION_EN_2, PAD_DIRECTION_SEL_2, PMX_MCICFINTR_MASK, 0, 1);
+DEFINE_2_MUXREG(pin241, PAD_FUNCTION_EN_2, PAD_DIRECTION_SEL_2, PMX_MCIIORDY_MASK, 0, 1);
+DEFINE_2_MUXREG(pin242, PAD_FUNCTION_EN_2, PAD_DIRECTION_SEL_2, PMX_MCICS1_MASK, 0, 1);
+DEFINE_2_MUXREG(pin243, PAD_FUNCTION_EN_2, PAD_DIRECTION_SEL_2, PMX_MCIDMAACK_MASK, 0, 1);
+DEFINE_2_MUXREG(pin244, PAD_FUNCTION_EN_2, PAD_DIRECTION_SEL_2, PMX_MCISDCMD_MASK, 0, 1);
+DEFINE_2_MUXREG(pin245, PAD_FUNCTION_EN_2, PAD_DIRECTION_SEL_2, PMX_MCILEDS_MASK, 0, 1);
+DEFINE_2_MUXREG(keyboard_rowcol6_8_pins, PAD_FUNCTION_EN_1, PAD_DIRECTION_SEL_1, PMX_KBD_ROWCOL68_MASK, 0, 1);
+DEFINE_2_MUXREG(uart0_pins, PAD_FUNCTION_EN_0, PAD_DIRECTION_SEL_0, PMX_UART0_MASK, 0, 1);
+DEFINE_2_MUXREG(uart0_modem_pins, PAD_FUNCTION_EN_1, PAD_DIRECTION_SEL_1, PMX_UART0_MODEM_MASK, 0, 1);
+DEFINE_2_MUXREG(gpt0_tmr0_pins, PAD_FUNCTION_EN_1, PAD_DIRECTION_SEL_1, PMX_GPT0_TMR0_MASK, 0, 1);
+DEFINE_2_MUXREG(gpt0_tmr1_pins, PAD_FUNCTION_EN_1, PAD_DIRECTION_SEL_1, PMX_GPT0_TMR1_MASK, 0, 1);
+DEFINE_2_MUXREG(gpt1_tmr0_pins, PAD_FUNCTION_EN_1, PAD_DIRECTION_SEL_1, PMX_GPT1_TMR0_MASK, 0, 1);
+DEFINE_2_MUXREG(gpt1_tmr1_pins, PAD_FUNCTION_EN_1, PAD_DIRECTION_SEL_1, PMX_GPT1_TMR1_MASK, 0, 1);
+DEFINE_2_MUXREG(touch_xy_pins, PAD_FUNCTION_EN_1, PAD_DIRECTION_SEL_1, PMX_TOUCH_XY_MASK, 0, 1);
+
+static struct spear_gpio_pingroup spear1310_gpio_pingroup[] = {
+ GPIO_PINGROUP(i2c0_pins),
+ GPIO_PINGROUP(ssp0_pins),
+ GPIO_PINGROUP(ssp0_cs0_pins),
+ GPIO_PINGROUP(ssp0_cs1_2_pins),
+ GPIO_PINGROUP(i2s0_pins),
+ GPIO_PINGROUP(i2s1_pins),
+ GPIO_PINGROUP(clcd_pins),
+ GPIO_PINGROUP(clcd_high_res_pins),
+ GPIO_PINGROUP(pin18),
+ GPIO_PINGROUP(pin19),
+ GPIO_PINGROUP(pin20),
+ GPIO_PINGROUP(pin21),
+ GPIO_PINGROUP(pin22),
+ GPIO_PINGROUP(pin23),
+ GPIO_PINGROUP(pin143),
+ GPIO_PINGROUP(pin144),
+ GPIO_PINGROUP(pin145),
+ GPIO_PINGROUP(pin146),
+ GPIO_PINGROUP(pin147),
+ GPIO_PINGROUP(pin148),
+ GPIO_PINGROUP(pin149),
+ GPIO_PINGROUP(pin150),
+ GPIO_PINGROUP(pin151),
+ GPIO_PINGROUP(pin152),
+ GPIO_PINGROUP(smi_2_chips_pins),
+ GPIO_PINGROUP(pin54),
+ GPIO_PINGROUP(pin55),
+ GPIO_PINGROUP(pin56),
+ GPIO_PINGROUP(pin57),
+ GPIO_PINGROUP(pin58),
+ GPIO_PINGROUP(pin59),
+ GPIO_PINGROUP(pin60),
+ GPIO_PINGROUP(pin61),
+ GPIO_PINGROUP(pin62),
+ GPIO_PINGROUP(pin63),
+ GPIO_PINGROUP(pin_grp0),
+ GPIO_PINGROUP(pin_grp1),
+ GPIO_PINGROUP(pin_grp2),
+ GPIO_PINGROUP(pin_grp3),
+ GPIO_PINGROUP(pin_grp4),
+ GPIO_PINGROUP(pin_grp5),
+ GPIO_PINGROUP(pin_grp6),
+ GPIO_PINGROUP(pin_grp7),
+ GPIO_PINGROUP(pin_grp8),
+ GPIO_PINGROUP(nand_16bit_pins),
+ GPIO_PINGROUP(pin205),
+ GPIO_PINGROUP(pin206),
+ GPIO_PINGROUP(pin211),
+ GPIO_PINGROUP(pin212),
+ GPIO_PINGROUP(pin213),
+ GPIO_PINGROUP(pin214),
+ GPIO_PINGROUP(pin215),
+ GPIO_PINGROUP(pin216),
+ GPIO_PINGROUP(pin217),
+ GPIO_PINGROUP(pin218),
+ GPIO_PINGROUP(pin219),
+ GPIO_PINGROUP(pin220),
+ GPIO_PINGROUP(pin221),
+ GPIO_PINGROUP(pin222),
+ GPIO_PINGROUP(pin223),
+ GPIO_PINGROUP(pin224),
+ GPIO_PINGROUP(pin225),
+ GPIO_PINGROUP(pin226),
+ GPIO_PINGROUP(pin227),
+ GPIO_PINGROUP(pin228),
+ GPIO_PINGROUP(pin229),
+ GPIO_PINGROUP(pin230),
+ GPIO_PINGROUP(pin231),
+ GPIO_PINGROUP(pin232),
+ GPIO_PINGROUP(pin233),
+ GPIO_PINGROUP(pin234),
+ GPIO_PINGROUP(pin235),
+ GPIO_PINGROUP(pin236),
+ GPIO_PINGROUP(pin237),
+ GPIO_PINGROUP(pin238),
+ GPIO_PINGROUP(pin239),
+ GPIO_PINGROUP(pin240),
+ GPIO_PINGROUP(pin241),
+ GPIO_PINGROUP(pin242),
+ GPIO_PINGROUP(pin243),
+ GPIO_PINGROUP(pin244),
+ GPIO_PINGROUP(pin245),
+ GPIO_PINGROUP(keyboard_rowcol6_8_pins),
+ GPIO_PINGROUP(uart0_pins),
+ GPIO_PINGROUP(uart0_modem_pins),
+ GPIO_PINGROUP(gpt0_tmr0_pins),
+ GPIO_PINGROUP(gpt0_tmr1_pins),
+ GPIO_PINGROUP(gpt1_tmr0_pins),
+ GPIO_PINGROUP(gpt1_tmr1_pins),
+ GPIO_PINGROUP(touch_xy_pins),
+};
+
static struct spear_pinctrl_machdata spear1310_machdata = {
.pins = spear1310_pins,
.npins = ARRAY_SIZE(spear1310_pins),
@@ -2425,6 +2687,8 @@ static struct spear_pinctrl_machdata spear1310_machdata = {
.ngroups = ARRAY_SIZE(spear1310_pingroups),
.functions = spear1310_functions,
.nfunctions = ARRAY_SIZE(spear1310_functions),
+ .gpio_pingroups = spear1310_gpio_pingroup,
+ .ngpio_pingroups = ARRAY_SIZE(spear1310_gpio_pingroup),
.modes_supported = false,
};
diff --git a/drivers/pinctrl/spear/pinctrl-spear300.c b/drivers/pinctrl/spear/pinctrl-spear300.c
index 4dfc2849b17..9a491007f42 100644
--- a/drivers/pinctrl/spear/pinctrl-spear300.c
+++ b/drivers/pinctrl/spear/pinctrl-spear300.c
@@ -661,6 +661,8 @@ static int __devinit spear300_pinctrl_probe(struct platform_device *pdev)
spear3xx_machdata.ngroups = ARRAY_SIZE(spear300_pingroups);
spear3xx_machdata.functions = spear300_functions;
spear3xx_machdata.nfunctions = ARRAY_SIZE(spear300_functions);
+ spear3xx_machdata.gpio_pingroups = NULL;
+ spear3xx_machdata.ngpio_pingroups = 0;
spear3xx_machdata.modes_supported = true;
spear3xx_machdata.pmx_modes = spear300_pmx_modes;
diff --git a/drivers/pinctrl/spear/pinctrl-spear310.c b/drivers/pinctrl/spear/pinctrl-spear310.c
index 96883693fb7..4d5dfe9c760 100644
--- a/drivers/pinctrl/spear/pinctrl-spear310.c
+++ b/drivers/pinctrl/spear/pinctrl-spear310.c
@@ -388,6 +388,8 @@ static int __devinit spear310_pinctrl_probe(struct platform_device *pdev)
spear3xx_machdata.nfunctions = ARRAY_SIZE(spear310_functions);
pmx_init_addr(&spear3xx_machdata, PMX_CONFIG_REG);
+ pmx_init_gpio_pingroup_addr(spear3xx_machdata.gpio_pingroups,
+ spear3xx_machdata.ngpio_pingroups, PMX_CONFIG_REG);
spear3xx_machdata.modes_supported = false;
diff --git a/drivers/pinctrl/spear/pinctrl-spear320.c b/drivers/pinctrl/spear/pinctrl-spear320.c
index ca47b0e5078..c996e26e3b6 100644
--- a/drivers/pinctrl/spear/pinctrl-spear320.c
+++ b/drivers/pinctrl/spear/pinctrl-spear320.c
@@ -3431,6 +3431,8 @@ static int __devinit spear320_pinctrl_probe(struct platform_device *pdev)
spear3xx_machdata.npmx_modes = ARRAY_SIZE(spear320_pmx_modes);
pmx_init_addr(&spear3xx_machdata, PMX_CONFIG_REG);
+ pmx_init_gpio_pingroup_addr(spear3xx_machdata.gpio_pingroups,
+ spear3xx_machdata.ngpio_pingroups, PMX_CONFIG_REG);
ret = spear_pinctrl_probe(pdev, &spear3xx_machdata);
if (ret)
diff --git a/drivers/pinctrl/spear/pinctrl-spear3xx.c b/drivers/pinctrl/spear/pinctrl-spear3xx.c
index 0242378f7cb..12ee21af766 100644
--- a/drivers/pinctrl/spear/pinctrl-spear3xx.c
+++ b/drivers/pinctrl/spear/pinctrl-spear3xx.c
@@ -481,7 +481,44 @@ struct spear_function spear3xx_timer_2_3_function = {
.ngroups = ARRAY_SIZE(timer_2_3_grps),
};
+/* Define muxreg arrays */
+DEFINE_MUXREG(firda_pins, 0, PMX_FIRDA_MASK, 0);
+DEFINE_MUXREG(i2c_pins, 0, PMX_I2C_MASK, 0);
+DEFINE_MUXREG(ssp_cs_pins, 0, PMX_SSP_CS_MASK, 0);
+DEFINE_MUXREG(ssp_pins, 0, PMX_SSP_MASK, 0);
+DEFINE_MUXREG(mii_pins, 0, PMX_MII_MASK, 0);
+DEFINE_MUXREG(gpio0_pin0_pins, 0, PMX_GPIO_PIN0_MASK, 0);
+DEFINE_MUXREG(gpio0_pin1_pins, 0, PMX_GPIO_PIN1_MASK, 0);
+DEFINE_MUXREG(gpio0_pin2_pins, 0, PMX_GPIO_PIN2_MASK, 0);
+DEFINE_MUXREG(gpio0_pin3_pins, 0, PMX_GPIO_PIN3_MASK, 0);
+DEFINE_MUXREG(gpio0_pin4_pins, 0, PMX_GPIO_PIN4_MASK, 0);
+DEFINE_MUXREG(gpio0_pin5_pins, 0, PMX_GPIO_PIN5_MASK, 0);
+DEFINE_MUXREG(uart0_ext_pins, 0, PMX_UART0_MODEM_MASK, 0);
+DEFINE_MUXREG(uart0_pins, 0, PMX_UART0_MASK, 0);
+DEFINE_MUXREG(timer_0_1_pins, 0, PMX_TIMER_0_1_MASK, 0);
+DEFINE_MUXREG(timer_2_3_pins, 0, PMX_TIMER_2_3_MASK, 0);
+
+static struct spear_gpio_pingroup spear3xx_gpio_pingroup[] = {
+ GPIO_PINGROUP(firda_pins),
+ GPIO_PINGROUP(i2c_pins),
+ GPIO_PINGROUP(ssp_cs_pins),
+ GPIO_PINGROUP(ssp_pins),
+ GPIO_PINGROUP(mii_pins),
+ GPIO_PINGROUP(gpio0_pin0_pins),
+ GPIO_PINGROUP(gpio0_pin1_pins),
+ GPIO_PINGROUP(gpio0_pin2_pins),
+ GPIO_PINGROUP(gpio0_pin3_pins),
+ GPIO_PINGROUP(gpio0_pin4_pins),
+ GPIO_PINGROUP(gpio0_pin5_pins),
+ GPIO_PINGROUP(uart0_ext_pins),
+ GPIO_PINGROUP(uart0_pins),
+ GPIO_PINGROUP(timer_0_1_pins),
+ GPIO_PINGROUP(timer_2_3_pins),
+};
+
struct spear_pinctrl_machdata spear3xx_machdata = {
.pins = spear3xx_pins,
.npins = ARRAY_SIZE(spear3xx_pins),
+ .gpio_pingroups = spear3xx_gpio_pingroup,
+ .ngpio_pingroups = ARRAY_SIZE(spear3xx_gpio_pingroup),
};