diff options
Diffstat (limited to 'drivers/usb/phy')
26 files changed, 814 insertions, 335 deletions
diff --git a/drivers/usb/phy/Kconfig b/drivers/usb/phy/Kconfig index 3622fff8b79..d5589f9c60a 100644 --- a/drivers/usb/phy/Kconfig +++ b/drivers/usb/phy/Kconfig @@ -1,22 +1,10 @@ # # Physical Layer USB driver configuration # -menuconfig USB_PHY - bool "USB Physical Layer drivers" - help - Most USB controllers have the physical layer signalling part - (commonly called a PHY) built in. However, dual-role devices - (a.k.a. USB on-the-go) which support being USB master or slave - with the same connector often use an external PHY. - - The drivers in this submenu add support for such PHY devices. - They are not needed for standard master-only (or the vast - majority of slave-only) USB interfaces. +menu "USB Physical Layer drivers" - If you're not sure if this applies to you, it probably doesn't; - say N here. - -if USB_PHY +config USB_PHY + def_bool n # # USB Transceiver Drivers @@ -24,6 +12,7 @@ if USB_PHY config AB8500_USB tristate "AB8500 USB Transceiver Driver" depends on AB8500_CORE + select USB_PHY help Enable this to support the USB OTG transceiver in AB8500 chip. This transceiver supports high and full speed devices plus, @@ -33,12 +22,14 @@ config FSL_USB2_OTG bool "Freescale USB OTG Transceiver Driver" depends on USB_EHCI_FSL && USB_FSL_USB2 && PM_RUNTIME select USB_OTG + select USB_PHY help Enable this to support Freescale USB OTG transceiver. config ISP1301_OMAP tristate "Philips ISP1301 with OMAP OTG" depends on I2C && ARCH_OMAP_OTG + select USB_PHY help If you say yes here you get support for the Philips ISP1301 USB-On-The-Go transceiver working with the OMAP OTG controller. @@ -52,12 +43,14 @@ config ISP1301_OMAP config MV_U3D_PHY bool "Marvell USB 3.0 PHY controller Driver" depends on CPU_MMP3 + select USB_PHY help Enable this to support Marvell USB 3.0 phy controller for Marvell SoC. config NOP_USB_XCEIV tristate "NOP USB Transceiver Driver" + select USB_PHY help This driver is to be used by all the usb transceiver which are either built-in with usb ip or which are autonomous and doesn't require any @@ -65,6 +58,7 @@ config NOP_USB_XCEIV config OMAP_CONTROL_USB tristate "OMAP CONTROL USB Driver" + depends on ARCH_OMAP2PLUS || COMPILE_TEST help Enable this to add support for the USB part present in the control module. This driver has API to power on the USB2 PHY and to write to @@ -76,6 +70,7 @@ config OMAP_USB2 tristate "OMAP USB2 PHY Driver" depends on ARCH_OMAP2PLUS select OMAP_CONTROL_USB + select USB_PHY help Enable this to support the transceiver that is part of SOC. This driver takes care of all the PHY functionality apart from comparator. @@ -84,13 +79,27 @@ config OMAP_USB2 config OMAP_USB3 tristate "OMAP USB3 PHY Driver" + depends on ARCH_OMAP2PLUS || COMPILE_TEST select OMAP_CONTROL_USB + select USB_PHY help Enable this to support the USB3 PHY that is part of SOC. This driver takes care of all the PHY functionality apart from comparator. This driver interacts with the "OMAP Control USB Driver" to power on/off the PHY. +config AM335X_CONTROL_USB + tristate + +config AM335X_PHY_USB + tristate "AM335x USB PHY Driver" + select USB_PHY + select AM335X_CONTROL_USB + select NOP_USB_XCEIV + help + This driver provides PHY support for that phy which part for the + AM335x SoC. + config SAMSUNG_USBPHY tristate help @@ -101,6 +110,7 @@ config SAMSUNG_USBPHY config SAMSUNG_USB2PHY tristate "Samsung USB 2.0 PHY controller Driver" select SAMSUNG_USBPHY + select USB_PHY help Enable this to support Samsung USB 2.0 (High Speed) PHY controller driver for Samsung SoCs. @@ -108,6 +118,7 @@ config SAMSUNG_USB2PHY config SAMSUNG_USB3PHY tristate "Samsung USB 3.0 PHY controller Driver" select SAMSUNG_USBPHY + select USB_PHY help Enable this to support Samsung USB 3.0 (Super Speed) phy controller for samsung SoCs. @@ -115,6 +126,7 @@ config SAMSUNG_USB3PHY config TWL4030_USB tristate "TWL4030 USB Transceiver Driver" depends on TWL4030_CORE && REGULATOR_TWL4030 && USB_MUSB_OMAP2PLUS + select USB_PHY help Enable this to support the USB OTG transceiver on TWL4030 family chips (including the TWL5030 and TPS659x0 devices). @@ -135,6 +147,7 @@ config TWL6030_USB config USB_GPIO_VBUS tristate "GPIO based peripheral-only VBUS sensing 'transceiver'" depends on GPIOLIB + select USB_PHY help Provides simple GPIO VBUS sensing for controllers with an internal transceiver via the usb_phy interface, and @@ -145,6 +158,7 @@ config USB_ISP1301 tristate "NXP ISP1301 USB transceiver support" depends on USB || USB_GADGET depends on I2C + select USB_PHY help Say Y here to add support for the NXP ISP1301 USB transceiver driver. This chip is typically used as USB transceiver for USB host, gadget @@ -156,6 +170,7 @@ config USB_ISP1301 config USB_MSM_OTG tristate "OTG support for Qualcomm on-chip USB controller" depends on (USB || USB_GADGET) && ARCH_MSM + select USB_PHY help Enable this to support the USB OTG transceiver on MSM chips. It handles PHY initialization, clock management, and workarounds @@ -169,6 +184,7 @@ config USB_MV_OTG tristate "Marvell USB OTG support" depends on USB_EHCI_MV && USB_MV_UDC && PM_RUNTIME select USB_OTG + select USB_PHY help Say Y here if you want to build Marvell USB OTG transciever driver in kernel (including PXA and MMP series). This driver @@ -180,6 +196,7 @@ config USB_MXS_PHY tristate "Freescale MXS USB PHY support" depends on ARCH_MXC || ARCH_MXS select STMP_DEVICE + select USB_PHY help Enable this to support the Freescale MXS USB PHY. @@ -188,6 +205,7 @@ config USB_MXS_PHY config USB_RCAR_PHY tristate "Renesas R-Car USB PHY support" depends on USB || USB_GADGET + select USB_PHY help Say Y here to add support for the Renesas R-Car USB common PHY driver. This chip is typically used as USB PHY for USB host, gadget. @@ -210,4 +228,4 @@ config USB_ULPI_VIEWPORT Provides read/write operations to the ULPI phy register set for controllers with a viewport register (e.g. Chipidea/ARC controllers). -endif # USB_PHY +endmenu diff --git a/drivers/usb/phy/Makefile b/drivers/usb/phy/Makefile index 070eca3af18..2135e85f46e 100644 --- a/drivers/usb/phy/Makefile +++ b/drivers/usb/phy/Makefile @@ -1,9 +1,6 @@ # # Makefile for physical layer USB drivers # - -ccflags-$(CONFIG_USB_DEBUG) := -DDEBUG - obj-$(CONFIG_USB_PHY) += phy.o obj-$(CONFIG_OF) += of.o @@ -14,8 +11,10 @@ phy-fsl-usb2-objs := phy-fsl-usb.o phy-fsm-usb.o obj-$(CONFIG_FSL_USB2_OTG) += phy-fsl-usb2.o obj-$(CONFIG_ISP1301_OMAP) += phy-isp1301-omap.o obj-$(CONFIG_MV_U3D_PHY) += phy-mv-u3d-usb.o -obj-$(CONFIG_NOP_USB_XCEIV) += phy-nop.o +obj-$(CONFIG_NOP_USB_XCEIV) += phy-generic.o obj-$(CONFIG_OMAP_CONTROL_USB) += phy-omap-control.o +obj-$(CONFIG_AM335X_CONTROL_USB) += phy-am335x-control.o +obj-$(CONFIG_AM335X_PHY_USB) += phy-am335x.o obj-$(CONFIG_OMAP_USB2) += phy-omap-usb2.o obj-$(CONFIG_OMAP_USB3) += phy-omap-usb3.o obj-$(CONFIG_SAMSUNG_USBPHY) += phy-samsung-usb.o diff --git a/drivers/usb/phy/am35x-phy-control.h b/drivers/usb/phy/am35x-phy-control.h new file mode 100644 index 00000000000..b96594d1962 --- /dev/null +++ b/drivers/usb/phy/am35x-phy-control.h @@ -0,0 +1,21 @@ +#ifndef _AM335x_PHY_CONTROL_H_ +#define _AM335x_PHY_CONTROL_H_ + +struct phy_control { + void (*phy_power)(struct phy_control *phy_ctrl, u32 id, bool on); + void (*phy_wkup)(struct phy_control *phy_ctrl, u32 id, bool on); +}; + +static inline void phy_ctrl_power(struct phy_control *phy_ctrl, u32 id, bool on) +{ + phy_ctrl->phy_power(phy_ctrl, id, on); +} + +static inline void phy_ctrl_wkup(struct phy_control *phy_ctrl, u32 id, bool on) +{ + phy_ctrl->phy_wkup(phy_ctrl, id, on); +} + +struct phy_control *am335x_get_phy_control(struct device *dev); + +#endif diff --git a/drivers/usb/phy/phy-am335x-control.c b/drivers/usb/phy/phy-am335x-control.c new file mode 100644 index 00000000000..22cf07d62e4 --- /dev/null +++ b/drivers/usb/phy/phy-am335x-control.c @@ -0,0 +1,137 @@ +#include <linux/module.h> +#include <linux/platform_device.h> +#include <linux/err.h> +#include <linux/of.h> +#include <linux/io.h> + +struct phy_control { + void (*phy_power)(struct phy_control *phy_ctrl, u32 id, bool on); + void (*phy_wkup)(struct phy_control *phy_ctrl, u32 id, bool on); +}; + +struct am335x_control_usb { + struct device *dev; + void __iomem *phy_reg; + void __iomem *wkup; + spinlock_t lock; + struct phy_control phy_ctrl; +}; + +#define AM335X_USB0_CTRL 0x0 +#define AM335X_USB1_CTRL 0x8 +#define AM335x_USB_WKUP 0x0 + +#define USBPHY_CM_PWRDN (1 << 0) +#define USBPHY_OTG_PWRDN (1 << 1) +#define USBPHY_OTGVDET_EN (1 << 19) +#define USBPHY_OTGSESSEND_EN (1 << 20) + +static void am335x_phy_power(struct phy_control *phy_ctrl, u32 id, bool on) +{ + struct am335x_control_usb *usb_ctrl; + u32 val; + u32 reg; + + usb_ctrl = container_of(phy_ctrl, struct am335x_control_usb, phy_ctrl); + + switch (id) { + case 0: + reg = AM335X_USB0_CTRL; + break; + case 1: + reg = AM335X_USB1_CTRL; + break; + default: + WARN_ON(1); + return; + } + + val = readl(usb_ctrl->phy_reg + reg); + if (on) { + val &= ~(USBPHY_CM_PWRDN | USBPHY_OTG_PWRDN); + val |= USBPHY_OTGVDET_EN | USBPHY_OTGSESSEND_EN; + } else { + val |= USBPHY_CM_PWRDN | USBPHY_OTG_PWRDN; + } + + writel(val, usb_ctrl->phy_reg + reg); +} + +static const struct phy_control ctrl_am335x = { + .phy_power = am335x_phy_power, +}; + +static const struct of_device_id omap_control_usb_id_table[] = { + { .compatible = "ti,am335x-usb-ctrl-module", .data = &ctrl_am335x }, + {} +}; +MODULE_DEVICE_TABLE(of, omap_control_usb_id_table); + +static struct platform_driver am335x_control_driver; +static int match(struct device *dev, void *data) +{ + struct device_node *node = (struct device_node *)data; + return dev->of_node == node && + dev->driver == &am335x_control_driver.driver; +} + +struct phy_control *am335x_get_phy_control(struct device *dev) +{ + struct device_node *node; + struct am335x_control_usb *ctrl_usb; + + node = of_parse_phandle(dev->of_node, "ti,ctrl_mod", 0); + if (!node) + return NULL; + + dev = bus_find_device(&platform_bus_type, NULL, node, match); + ctrl_usb = dev_get_drvdata(dev); + if (!ctrl_usb) + return NULL; + return &ctrl_usb->phy_ctrl; +} +EXPORT_SYMBOL_GPL(am335x_get_phy_control); + +static int am335x_control_usb_probe(struct platform_device *pdev) +{ + struct resource *res; + struct am335x_control_usb *ctrl_usb; + const struct of_device_id *of_id; + const struct phy_control *phy_ctrl; + + of_id = of_match_node(omap_control_usb_id_table, pdev->dev.of_node); + if (!of_id) + return -EINVAL; + + phy_ctrl = of_id->data; + + ctrl_usb = devm_kzalloc(&pdev->dev, sizeof(*ctrl_usb), GFP_KERNEL); + if (!ctrl_usb) { + dev_err(&pdev->dev, "unable to alloc memory for control usb\n"); + return -ENOMEM; + } + + ctrl_usb->dev = &pdev->dev; + + res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "phy_ctrl"); + ctrl_usb->phy_reg = devm_ioremap_resource(&pdev->dev, res); + if (IS_ERR(ctrl_usb->phy_reg)) + return PTR_ERR(ctrl_usb->phy_reg); + spin_lock_init(&ctrl_usb->lock); + ctrl_usb->phy_ctrl = *phy_ctrl; + + dev_set_drvdata(ctrl_usb->dev, ctrl_usb); + return 0; +} + +static struct platform_driver am335x_control_driver = { + .probe = am335x_control_usb_probe, + .driver = { + .name = "am335x-control-usb", + .owner = THIS_MODULE, + .of_match_table = of_match_ptr(omap_control_usb_id_table), + }, +}; + +module_platform_driver(am335x_control_driver); +MODULE_LICENSE("GPL v2"); diff --git a/drivers/usb/phy/phy-am335x.c b/drivers/usb/phy/phy-am335x.c new file mode 100644 index 00000000000..c4d614d1f17 --- /dev/null +++ b/drivers/usb/phy/phy-am335x.c @@ -0,0 +1,99 @@ +#include <linux/module.h> +#include <linux/platform_device.h> +#include <linux/dma-mapping.h> +#include <linux/usb/otg.h> +#include <linux/usb/usb_phy_gen_xceiv.h> +#include <linux/slab.h> +#include <linux/clk.h> +#include <linux/regulator/consumer.h> +#include <linux/of.h> +#include <linux/of_address.h> + +#include "am35x-phy-control.h" +#include "phy-generic.h" + +struct am335x_phy { + struct usb_phy_gen_xceiv usb_phy_gen; + struct phy_control *phy_ctrl; + int id; +}; + +static int am335x_init(struct usb_phy *phy) +{ + struct am335x_phy *am_phy = dev_get_drvdata(phy->dev); + + phy_ctrl_power(am_phy->phy_ctrl, am_phy->id, true); + return 0; +} + +static void am335x_shutdown(struct usb_phy *phy) +{ + struct am335x_phy *am_phy = dev_get_drvdata(phy->dev); + + phy_ctrl_power(am_phy->phy_ctrl, am_phy->id, false); +} + +static int am335x_phy_probe(struct platform_device *pdev) +{ + struct am335x_phy *am_phy; + struct device *dev = &pdev->dev; + int ret; + + am_phy = devm_kzalloc(dev, sizeof(*am_phy), GFP_KERNEL); + if (!am_phy) + return -ENOMEM; + + am_phy->phy_ctrl = am335x_get_phy_control(dev); + if (!am_phy->phy_ctrl) + return -EPROBE_DEFER; + am_phy->id = of_alias_get_id(pdev->dev.of_node, "phy"); + if (am_phy->id < 0) { + dev_err(&pdev->dev, "Missing PHY id: %d\n", am_phy->id); + return am_phy->id; + } + + ret = usb_phy_gen_create_phy(dev, &am_phy->usb_phy_gen, + USB_PHY_TYPE_USB2, 0, false, false); + if (ret) + return ret; + + ret = usb_add_phy_dev(&am_phy->usb_phy_gen.phy); + if (ret) + goto err_add; + am_phy->usb_phy_gen.phy.init = am335x_init; + am_phy->usb_phy_gen.phy.shutdown = am335x_shutdown; + + platform_set_drvdata(pdev, am_phy); + return 0; + +err_add: + usb_phy_gen_cleanup_phy(&am_phy->usb_phy_gen); + return ret; +} + +static int am335x_phy_remove(struct platform_device *pdev) +{ + struct am335x_phy *am_phy = platform_get_drvdata(pdev); + + usb_remove_phy(&am_phy->usb_phy_gen.phy); + return 0; +} + +static const struct of_device_id am335x_phy_ids[] = { + { .compatible = "ti,am335x-usb-phy" }, + { } +}; +MODULE_DEVICE_TABLE(of, am335x_phy_ids); + +static struct platform_driver am335x_phy_driver = { + .probe = am335x_phy_probe, + .remove = am335x_phy_remove, + .driver = { + .name = "am335x-phy-driver", + .owner = THIS_MODULE, + .of_match_table = of_match_ptr(am335x_phy_ids), + }, +}; + +module_platform_driver(am335x_phy_driver); +MODULE_LICENSE("GPL v2"); diff --git a/drivers/usb/phy/phy-fsl-usb.c b/drivers/usb/phy/phy-fsl-usb.c index e771bafb9f1..fa7c9f9628b 100644 --- a/drivers/usb/phy/phy-fsl-usb.c +++ b/drivers/usb/phy/phy-fsl-usb.c @@ -611,7 +611,7 @@ static int fsl_otg_set_peripheral(struct usb_otg *otg, otg_dev->fsm.b_bus_req = 1; /* start the gadget right away if the ID pin says Mini-B */ - DBG("ID pin=%d\n", otg_dev->fsm.id); + pr_debug("ID pin=%d\n", otg_dev->fsm.id); if (otg_dev->fsm.id == 1) { fsl_otg_start_host(&otg_dev->fsm, 0); otg_drv_vbus(&otg_dev->fsm, 0); @@ -684,7 +684,7 @@ static int fsl_otg_start_hnp(struct usb_otg *otg) if (otg_dev != fsl_otg_dev) return -ENODEV; - DBG("start_hnp...n"); + pr_debug("start_hnp...\n"); /* clear a_bus_req to enter a_suspend state */ otg_dev->fsm.a_bus_req = 0; @@ -834,7 +834,7 @@ int usb_otg_start(struct platform_device *pdev) int status; struct resource *res; u32 temp; - struct fsl_usb2_platform_data *pdata = pdev->dev.platform_data; + struct fsl_usb2_platform_data *pdata = dev_get_platdata(&pdev->dev); p_otg = container_of(otg_trans, struct fsl_otg, phy); fsm = &p_otg->fsm; @@ -941,7 +941,7 @@ int usb_otg_start(struct platform_device *pdev) p_otg->fsm.id = 0; } - DBG("initial ID pin=%d\n", p_otg->fsm.id); + pr_debug("initial ID pin=%d\n", p_otg->fsm.id); /* enable OTG ID pin interrupt */ temp = fsl_readl(&p_otg->dr_mem_map->otgsc); @@ -1105,7 +1105,7 @@ static int fsl_otg_probe(struct platform_device *pdev) { int ret; - if (!pdev->dev.platform_data) + if (!dev_get_platdata(&pdev->dev)) return -ENODEV; /* configure the OTG */ @@ -1137,7 +1137,7 @@ static int fsl_otg_probe(struct platform_device *pdev) static int fsl_otg_remove(struct platform_device *pdev) { - struct fsl_usb2_platform_data *pdata = pdev->dev.platform_data; + struct fsl_usb2_platform_data *pdata = dev_get_platdata(&pdev->dev); usb_remove_phy(&fsl_otg_dev->phy); free_irq(fsl_otg_dev->irq, fsl_otg_dev); diff --git a/drivers/usb/phy/phy-fsl-usb.h b/drivers/usb/phy/phy-fsl-usb.h index ca266280895..e1859b8ef56 100644 --- a/drivers/usb/phy/phy-fsl-usb.h +++ b/drivers/usb/phy/phy-fsl-usb.h @@ -15,7 +15,7 @@ * 675 Mass Ave, Cambridge, MA 02139, USA. */ -#include "otg_fsm.h" +#include "phy-fsm-usb.h" #include <linux/usb/otg.h> #include <linux/ioctl.h> diff --git a/drivers/usb/phy/phy-fsm-usb.c b/drivers/usb/phy/phy-fsm-usb.c index c520b3548e7..7f4596606e1 100644 --- a/drivers/usb/phy/phy-fsm-usb.c +++ b/drivers/usb/phy/phy-fsm-usb.c @@ -29,7 +29,7 @@ #include <linux/usb/gadget.h> #include <linux/usb/otg.h> -#include "phy-otg-fsm.h" +#include "phy-fsm-usb.h" /* Change USB protocol when there is a protocol change */ static int otg_set_protocol(struct otg_fsm *fsm, int protocol) diff --git a/drivers/usb/phy/phy-fsm-usb.h b/drivers/usb/phy/phy-fsm-usb.h index c30a2e1d9e4..fbe586206f3 100644 --- a/drivers/usb/phy/phy-fsm-usb.h +++ b/drivers/usb/phy/phy-fsm-usb.h @@ -15,18 +15,11 @@ * 675 Mass Ave, Cambridge, MA 02139, USA. */ -#undef DEBUG #undef VERBOSE -#ifdef DEBUG -#define DBG(fmt, args...) printk(KERN_DEBUG "[%s] " fmt , \ - __func__, ## args) -#else -#define DBG(fmt, args...) do {} while (0) -#endif - #ifdef VERBOSE -#define VDBG DBG +#define VDBG(fmt, args...) pr_debug("[%s] " fmt , \ + __func__, ## args) #else #define VDBG(stuff...) do {} while (0) #endif diff --git a/drivers/usb/phy/phy-nop.c b/drivers/usb/phy/phy-generic.c index 55445e5d72e..efe59f3f7fd 100644 --- a/drivers/usb/phy/phy-nop.c +++ b/drivers/usb/phy/phy-generic.c @@ -30,19 +30,13 @@ #include <linux/platform_device.h> #include <linux/dma-mapping.h> #include <linux/usb/otg.h> -#include <linux/usb/nop-usb-xceiv.h> +#include <linux/usb/usb_phy_gen_xceiv.h> #include <linux/slab.h> #include <linux/clk.h> #include <linux/regulator/consumer.h> #include <linux/of.h> -struct nop_usb_xceiv { - struct usb_phy phy; - struct device *dev; - struct clk *clk; - struct regulator *vcc; - struct regulator *reset; -}; +#include "phy-generic.h" static struct platform_device *pd; @@ -50,9 +44,9 @@ void usb_nop_xceiv_register(void) { if (pd) return; - pd = platform_device_register_simple("nop_usb_xceiv", -1, NULL, 0); + pd = platform_device_register_simple("usb_phy_gen_xceiv", -1, NULL, 0); if (!pd) { - printk(KERN_ERR "Unable to register usb nop transceiver\n"); + pr_err("Unable to register generic usb transceiver\n"); return; } } @@ -70,9 +64,9 @@ static int nop_set_suspend(struct usb_phy *x, int suspend) return 0; } -static int nop_init(struct usb_phy *phy) +int usb_gen_phy_init(struct usb_phy *phy) { - struct nop_usb_xceiv *nop = dev_get_drvdata(phy->dev); + struct usb_phy_gen_xceiv *nop = dev_get_drvdata(phy->dev); if (!IS_ERR(nop->vcc)) { if (regulator_enable(nop->vcc)) @@ -90,10 +84,11 @@ static int nop_init(struct usb_phy *phy) return 0; } +EXPORT_SYMBOL_GPL(usb_gen_phy_init); -static void nop_shutdown(struct usb_phy *phy) +void usb_gen_phy_shutdown(struct usb_phy *phy) { - struct nop_usb_xceiv *nop = dev_get_drvdata(phy->dev); + struct usb_phy_gen_xceiv *nop = dev_get_drvdata(phy->dev); if (!IS_ERR(nop->reset)) { /* Assert RESET */ @@ -109,6 +104,7 @@ static void nop_shutdown(struct usb_phy *phy) dev_err(phy->dev, "Failed to disable power\n"); } } +EXPORT_SYMBOL_GPL(usb_gen_phy_shutdown); static int nop_set_peripheral(struct usb_otg *otg, struct usb_gadget *gadget) { @@ -139,52 +135,27 @@ static int nop_set_host(struct usb_otg *otg, struct usb_bus *host) return 0; } -static int nop_usb_xceiv_probe(struct platform_device *pdev) +int usb_phy_gen_create_phy(struct device *dev, struct usb_phy_gen_xceiv *nop, + enum usb_phy_type type, u32 clk_rate, bool needs_vcc, + bool needs_reset) { - struct device *dev = &pdev->dev; - struct nop_usb_xceiv_platform_data *pdata = pdev->dev.platform_data; - struct nop_usb_xceiv *nop; - enum usb_phy_type type = USB_PHY_TYPE_USB2; int err; - u32 clk_rate = 0; - bool needs_vcc = false; - bool needs_reset = false; - - nop = devm_kzalloc(&pdev->dev, sizeof(*nop), GFP_KERNEL); - if (!nop) - return -ENOMEM; - nop->phy.otg = devm_kzalloc(&pdev->dev, sizeof(*nop->phy.otg), - GFP_KERNEL); + nop->phy.otg = devm_kzalloc(dev, sizeof(*nop->phy.otg), + GFP_KERNEL); if (!nop->phy.otg) return -ENOMEM; - if (dev->of_node) { - struct device_node *node = dev->of_node; - - if (of_property_read_u32(node, "clock-frequency", &clk_rate)) - clk_rate = 0; - - needs_vcc = of_property_read_bool(node, "vcc-supply"); - needs_reset = of_property_read_bool(node, "reset-supply"); - - } else if (pdata) { - type = pdata->type; - clk_rate = pdata->clk_rate; - needs_vcc = pdata->needs_vcc; - needs_reset = pdata->needs_reset; - } - - nop->clk = devm_clk_get(&pdev->dev, "main_clk"); + nop->clk = devm_clk_get(dev, "main_clk"); if (IS_ERR(nop->clk)) { - dev_dbg(&pdev->dev, "Can't get phy clock: %ld\n", + dev_dbg(dev, "Can't get phy clock: %ld\n", PTR_ERR(nop->clk)); } if (!IS_ERR(nop->clk) && clk_rate) { err = clk_set_rate(nop->clk, clk_rate); if (err) { - dev_err(&pdev->dev, "Error setting clock rate\n"); + dev_err(dev, "Error setting clock rate\n"); return err; } } @@ -192,33 +163,31 @@ static int nop_usb_xceiv_probe(struct platform_device *pdev) if (!IS_ERR(nop->clk)) { err = clk_prepare(nop->clk); if (err) { - dev_err(&pdev->dev, "Error preparing clock\n"); + dev_err(dev, "Error preparing clock\n"); return err; } } - nop->vcc = devm_regulator_get(&pdev->dev, "vcc"); + nop->vcc = devm_regulator_get(dev, "vcc"); if (IS_ERR(nop->vcc)) { - dev_dbg(&pdev->dev, "Error getting vcc regulator: %ld\n", + dev_dbg(dev, "Error getting vcc regulator: %ld\n", PTR_ERR(nop->vcc)); if (needs_vcc) return -EPROBE_DEFER; } - nop->reset = devm_regulator_get(&pdev->dev, "reset"); + nop->reset = devm_regulator_get(dev, "reset"); if (IS_ERR(nop->reset)) { - dev_dbg(&pdev->dev, "Error getting reset regulator: %ld\n", + dev_dbg(dev, "Error getting reset regulator: %ld\n", PTR_ERR(nop->reset)); if (needs_reset) return -EPROBE_DEFER; } - nop->dev = &pdev->dev; + nop->dev = dev; nop->phy.dev = nop->dev; nop->phy.label = "nop-xceiv"; nop->phy.set_suspend = nop_set_suspend; - nop->phy.init = nop_init; - nop->phy.shutdown = nop_shutdown; nop->phy.state = OTG_STATE_UNDEFINED; nop->phy.type = type; @@ -226,6 +195,59 @@ static int nop_usb_xceiv_probe(struct platform_device *pdev) nop->phy.otg->set_host = nop_set_host; nop->phy.otg->set_peripheral = nop_set_peripheral; + ATOMIC_INIT_NOTIFIER_HEAD(&nop->phy.notifier); + return 0; +} +EXPORT_SYMBOL_GPL(usb_phy_gen_create_phy); + +void usb_phy_gen_cleanup_phy(struct usb_phy_gen_xceiv *nop) +{ + if (!IS_ERR(nop->clk)) + clk_unprepare(nop->clk); +} +EXPORT_SYMBOL_GPL(usb_phy_gen_cleanup_phy); + +static int usb_phy_gen_xceiv_probe(struct platform_device *pdev) +{ + struct device *dev = &pdev->dev; + struct usb_phy_gen_xceiv_platform_data *pdata = + dev_get_platdata(&pdev->dev); + struct usb_phy_gen_xceiv *nop; + enum usb_phy_type type = USB_PHY_TYPE_USB2; + int err; + u32 clk_rate = 0; + bool needs_vcc = false; + bool needs_reset = false; + + if (dev->of_node) { + struct device_node *node = dev->of_node; + + if (of_property_read_u32(node, "clock-frequency", &clk_rate)) + clk_rate = 0; + + needs_vcc = of_property_read_bool(node, "vcc-supply"); + needs_reset = of_property_read_bool(node, "reset-supply"); + + } else if (pdata) { + type = pdata->type; + clk_rate = pdata->clk_rate; + needs_vcc = pdata->needs_vcc; + needs_reset = pdata->needs_reset; + } + + nop = devm_kzalloc(dev, sizeof(*nop), GFP_KERNEL); + if (!nop) + return -ENOMEM; + + + err = usb_phy_gen_create_phy(dev, nop, type, clk_rate, needs_vcc, + needs_reset); + if (err) + return err; + + nop->phy.init = usb_gen_phy_init; + nop->phy.shutdown = usb_gen_phy_shutdown; + err = usb_add_phy_dev(&nop->phy); if (err) { dev_err(&pdev->dev, "can't register transceiver, err: %d\n", @@ -235,23 +257,18 @@ static int nop_usb_xceiv_probe(struct platform_device *pdev) platform_set_drvdata(pdev, nop); - ATOMIC_INIT_NOTIFIER_HEAD(&nop->phy.notifier); - return 0; err_add: - if (!IS_ERR(nop->clk)) - clk_unprepare(nop->clk); + usb_phy_gen_cleanup_phy(nop); return err; } -static int nop_usb_xceiv_remove(struct platform_device *pdev) +static int usb_phy_gen_xceiv_remove(struct platform_device *pdev) { - struct nop_usb_xceiv *nop = platform_get_drvdata(pdev); - - if (!IS_ERR(nop->clk)) - clk_unprepare(nop->clk); + struct usb_phy_gen_xceiv *nop = platform_get_drvdata(pdev); + usb_phy_gen_cleanup_phy(nop); usb_remove_phy(&nop->phy); return 0; @@ -264,29 +281,29 @@ static const struct of_device_id nop_xceiv_dt_ids[] = { MODULE_DEVICE_TABLE(of, nop_xceiv_dt_ids); -static struct platform_driver nop_usb_xceiv_driver = { - .probe = nop_usb_xceiv_probe, - .remove = nop_usb_xceiv_remove, +static struct platform_driver usb_phy_gen_xceiv_driver = { + .probe = usb_phy_gen_xceiv_probe, + .remove = usb_phy_gen_xceiv_remove, .driver = { - .name = "nop_usb_xceiv", + .name = "usb_phy_gen_xceiv", .owner = THIS_MODULE, .of_match_table = nop_xceiv_dt_ids, }, }; -static int __init nop_usb_xceiv_init(void) +static int __init usb_phy_gen_xceiv_init(void) { - return platform_driver_register(&nop_usb_xceiv_driver); + return platform_driver_register(&usb_phy_gen_xceiv_driver); } -subsys_initcall(nop_usb_xceiv_init); +subsys_initcall(usb_phy_gen_xceiv_init); -static void __exit nop_usb_xceiv_exit(void) +static void __exit usb_phy_gen_xceiv_exit(void) { - platform_driver_unregister(&nop_usb_xceiv_driver); + platform_driver_unregister(&usb_phy_gen_xceiv_driver); } -module_exit(nop_usb_xceiv_exit); +module_exit(usb_phy_gen_xceiv_exit); -MODULE_ALIAS("platform:nop_usb_xceiv"); +MODULE_ALIAS("platform:usb_phy_gen_xceiv"); MODULE_AUTHOR("Texas Instruments Inc"); MODULE_DESCRIPTION("NOP USB Transceiver driver"); MODULE_LICENSE("GPL"); diff --git a/drivers/usb/phy/phy-generic.h b/drivers/usb/phy/phy-generic.h new file mode 100644 index 00000000000..61687d5a965 --- /dev/null +++ b/drivers/usb/phy/phy-generic.h @@ -0,0 +1,20 @@ +#ifndef _PHY_GENERIC_H_ +#define _PHY_GENERIC_H_ + +struct usb_phy_gen_xceiv { + struct usb_phy phy; + struct device *dev; + struct clk *clk; + struct regulator *vcc; + struct regulator *reset; +}; + +int usb_gen_phy_init(struct usb_phy *phy); +void usb_gen_phy_shutdown(struct usb_phy *phy); + +int usb_phy_gen_create_phy(struct device *dev, struct usb_phy_gen_xceiv *nop, + enum usb_phy_type type, u32 clk_rate, bool needs_vcc, + bool needs_reset); +void usb_phy_gen_cleanup_phy(struct usb_phy_gen_xceiv *nop); + +#endif diff --git a/drivers/usb/phy/phy-gpio-vbus-usb.c b/drivers/usb/phy/phy-gpio-vbus-usb.c index 8443335c2ea..b2f29c9aebb 100644 --- a/drivers/usb/phy/phy-gpio-vbus-usb.c +++ b/drivers/usb/phy/phy-gpio-vbus-usb.c @@ -101,7 +101,7 @@ static void gpio_vbus_work(struct work_struct *work) { struct gpio_vbus_data *gpio_vbus = container_of(work, struct gpio_vbus_data, work.work); - struct gpio_vbus_mach_info *pdata = gpio_vbus->dev->platform_data; + struct gpio_vbus_mach_info *pdata = dev_get_platdata(gpio_vbus->dev); int gpio, status, vbus; if (!gpio_vbus->phy.otg->gadget) @@ -155,7 +155,7 @@ static void gpio_vbus_work(struct work_struct *work) static irqreturn_t gpio_vbus_irq(int irq, void *data) { struct platform_device *pdev = data; - struct gpio_vbus_mach_info *pdata = pdev->dev.platform_data; + struct gpio_vbus_mach_info *pdata = dev_get_platdata(&pdev->dev); struct gpio_vbus_data *gpio_vbus = platform_get_drvdata(pdev); struct usb_otg *otg = gpio_vbus->phy.otg; @@ -182,7 +182,7 @@ static int gpio_vbus_set_peripheral(struct usb_otg *otg, gpio_vbus = container_of(otg->phy, struct gpio_vbus_data, phy); pdev = to_platform_device(gpio_vbus->dev); - pdata = gpio_vbus->dev->platform_data; + pdata = dev_get_platdata(gpio_vbus->dev); gpio = pdata->gpio_pullup; if (!gadget) { @@ -243,7 +243,7 @@ static int gpio_vbus_set_suspend(struct usb_phy *phy, int suspend) static int __init gpio_vbus_probe(struct platform_device *pdev) { - struct gpio_vbus_mach_info *pdata = pdev->dev.platform_data; + struct gpio_vbus_mach_info *pdata = dev_get_platdata(&pdev->dev); struct gpio_vbus_data *gpio_vbus; struct resource *res; int err, gpio, irq; @@ -352,7 +352,7 @@ err_gpio: static int __exit gpio_vbus_remove(struct platform_device *pdev) { struct gpio_vbus_data *gpio_vbus = platform_get_drvdata(pdev); - struct gpio_vbus_mach_info *pdata = pdev->dev.platform_data; + struct gpio_vbus_mach_info *pdata = dev_get_platdata(&pdev->dev); int gpio = pdata->gpio_vbus; device_init_wakeup(&pdev->dev, 0); diff --git a/drivers/usb/phy/phy-isp1301-omap.c b/drivers/usb/phy/phy-isp1301-omap.c index ae481afcb3e..d3a5160e4cc 100644 --- a/drivers/usb/phy/phy-isp1301-omap.c +++ b/drivers/usb/phy/phy-isp1301-omap.c @@ -40,9 +40,7 @@ #include <mach/usb.h> -#ifndef DEBUG -#undef VERBOSE -#endif +#undef VERBOSE #define DRIVER_VERSION "24 August 2004" @@ -387,7 +385,6 @@ static void b_idle(struct isp1301 *isp, const char *tag) static void dump_regs(struct isp1301 *isp, const char *label) { -#ifdef DEBUG u8 ctrl = isp1301_get_u8(isp, ISP1301_OTG_CONTROL_1); u8 status = isp1301_get_u8(isp, ISP1301_OTG_STATUS); u8 src = isp1301_get_u8(isp, ISP1301_INTERRUPT_SOURCE); @@ -396,7 +393,6 @@ dump_regs(struct isp1301 *isp, const char *label) omap_readl(OTG_CTRL), label, state_name(isp), ctrl, status, src); /* mode control and irq enables don't change much */ -#endif } /*-------------------------------------------------------------------------*/ diff --git a/drivers/usb/phy/phy-msm-usb.c b/drivers/usb/phy/phy-msm-usb.c index d08f33435e9..e9d4cd960ec 100644 --- a/drivers/usb/phy/phy-msm-usb.c +++ b/drivers/usb/phy/phy-msm-usb.c @@ -1419,7 +1419,7 @@ static int __init msm_otg_probe(struct platform_device *pdev) struct usb_phy *phy; dev_info(&pdev->dev, "msm_otg probe\n"); - if (!pdev->dev.platform_data) { + if (!dev_get_platdata(&pdev->dev)) { dev_err(&pdev->dev, "No platform data given. Bailing out\n"); return -ENODEV; } @@ -1436,7 +1436,7 @@ static int __init msm_otg_probe(struct platform_device *pdev) return -ENOMEM; } - motg->pdata = pdev->dev.platform_data; + motg->pdata = dev_get_platdata(&pdev->dev); phy = &motg->phy; phy->dev = &pdev->dev; diff --git a/drivers/usb/phy/phy-mv-u3d-usb.c b/drivers/usb/phy/phy-mv-u3d-usb.c index 1568ea63e33..d317903022b 100644 --- a/drivers/usb/phy/phy-mv-u3d-usb.c +++ b/drivers/usb/phy/phy-mv-u3d-usb.c @@ -82,7 +82,7 @@ static void mv_u3d_phy_write(void __iomem *base, u32 reg, u32 value) writel_relaxed(value, data); } -void mv_u3d_phy_shutdown(struct usb_phy *phy) +static void mv_u3d_phy_shutdown(struct usb_phy *phy) { struct mv_u3d_phy *mv_u3d_phy; void __iomem *base; @@ -271,7 +271,7 @@ static int mv_u3d_phy_probe(struct platform_device *pdev) void __iomem *phy_base; int ret; - pdata = pdev->dev.platform_data; + pdata = dev_get_platdata(&pdev->dev); if (!pdata) { dev_err(&pdev->dev, "%s: no platform data defined\n", __func__); return -EINVAL; diff --git a/drivers/usb/phy/phy-mv-usb.c b/drivers/usb/phy/phy-mv-usb.c index 4a6b03c7387..98f6ac6a78e 100644 --- a/drivers/usb/phy/phy-mv-usb.c +++ b/drivers/usb/phy/phy-mv-usb.c @@ -653,7 +653,7 @@ static struct attribute_group inputs_attr_group = { .attrs = inputs_attrs, }; -int mv_otg_remove(struct platform_device *pdev) +static int mv_otg_remove(struct platform_device *pdev) { struct mv_otg *mvotg = platform_get_drvdata(pdev); @@ -673,7 +673,7 @@ int mv_otg_remove(struct platform_device *pdev) static int mv_otg_probe(struct platform_device *pdev) { - struct mv_usb_platform_data *pdata = pdev->dev.platform_data; + struct mv_usb_platform_data *pdata = dev_get_platdata(&pdev->dev); struct mv_otg *mvotg; struct usb_otg *otg; struct resource *r; @@ -893,7 +893,7 @@ static int mv_otg_resume(struct platform_device *pdev) static struct platform_driver mv_otg_driver = { .probe = mv_otg_probe, - .remove = __exit_p(mv_otg_remove), + .remove = mv_otg_remove, .driver = { .owner = THIS_MODULE, .name = driver_name, diff --git a/drivers/usb/phy/phy-mxs-usb.c b/drivers/usb/phy/phy-mxs-usb.c index bd601c537c8..fdd33b44dbd 100644 --- a/drivers/usb/phy/phy-mxs-usb.c +++ b/drivers/usb/phy/phy-mxs-usb.c @@ -41,11 +41,14 @@ struct mxs_phy { #define to_mxs_phy(p) container_of((p), struct mxs_phy, phy) -static void mxs_phy_hw_init(struct mxs_phy *mxs_phy) +static int mxs_phy_hw_init(struct mxs_phy *mxs_phy) { + int ret; void __iomem *base = mxs_phy->phy.io_priv; - stmp_reset_block(base + HW_USBPHY_CTRL); + ret = stmp_reset_block(base + HW_USBPHY_CTRL); + if (ret) + return ret; /* Power up the PHY */ writel(0, base + HW_USBPHY_PWD); @@ -54,6 +57,8 @@ static void mxs_phy_hw_init(struct mxs_phy *mxs_phy) writel(BM_USBPHY_CTRL_ENUTMILEVEL2 | BM_USBPHY_CTRL_ENUTMILEVEL3, base + HW_USBPHY_CTRL_SET); + + return 0; } static int mxs_phy_init(struct usb_phy *phy) @@ -61,9 +66,7 @@ static int mxs_phy_init(struct usb_phy *phy) struct mxs_phy *mxs_phy = to_mxs_phy(phy); clk_prepare_enable(mxs_phy->clk); - mxs_phy_hw_init(mxs_phy); - - return 0; + return mxs_phy_hw_init(mxs_phy); } static void mxs_phy_shutdown(struct usb_phy *phy) diff --git a/drivers/usb/phy/phy-omap-control.c b/drivers/usb/phy/phy-omap-control.c index 1419ceda975..a4dda8e1256 100644 --- a/drivers/usb/phy/phy-omap-control.c +++ b/drivers/usb/phy/phy-omap-control.c @@ -197,7 +197,8 @@ static int omap_control_usb_probe(struct platform_device *pdev) { struct resource *res; struct device_node *np = pdev->dev.of_node; - struct omap_control_usb_platform_data *pdata = pdev->dev.platform_data; + struct omap_control_usb_platform_data *pdata = + dev_get_platdata(&pdev->dev); control_usb = devm_kzalloc(&pdev->dev, sizeof(*control_usb), GFP_KERNEL); diff --git a/drivers/usb/phy/phy-omap-usb2.c b/drivers/usb/phy/phy-omap-usb2.c index 844ab68f08d..d266861d24f 100644 --- a/drivers/usb/phy/phy-omap-usb2.c +++ b/drivers/usb/phy/phy-omap-usb2.c @@ -98,8 +98,8 @@ static int omap_usb_set_peripheral(struct usb_otg *otg, static int omap_usb2_suspend(struct usb_phy *x, int suspend) { - u32 ret; struct omap_usb *phy = phy_to_omapusb(x); + int ret; if (suspend && !phy->is_suspended) { omap_control_usb_phy_power(phy->control_dev, 0); @@ -108,8 +108,7 @@ static int omap_usb2_suspend(struct usb_phy *x, int suspend) } else if (!suspend && phy->is_suspended) { ret = pm_runtime_get_sync(phy->dev); if (ret < 0) { - dev_err(phy->dev, "get_sync failed with err %d\n", - ret); + dev_err(phy->dev, "get_sync failed with err %d\n", ret); return ret; } omap_control_usb_phy_power(phy->control_dev, 1); @@ -209,9 +208,9 @@ static int omap_usb2_runtime_suspend(struct device *dev) static int omap_usb2_runtime_resume(struct device *dev) { - u32 ret = 0; struct platform_device *pdev = to_platform_device(dev); struct omap_usb *phy = platform_get_drvdata(pdev); + int ret; ret = clk_enable(phy->wkupclk); if (ret < 0) { diff --git a/drivers/usb/phy/phy-omap-usb3.c b/drivers/usb/phy/phy-omap-usb3.c index efe6e1464f4..fc15694d303 100644 --- a/drivers/usb/phy/phy-omap-usb3.c +++ b/drivers/usb/phy/phy-omap-usb3.c @@ -27,7 +27,6 @@ #include <linux/delay.h> #include <linux/usb/omap_control_usb.h> -#define NUM_SYS_CLKS 6 #define PLL_STATUS 0x00000004 #define PLL_GO 0x00000008 #define PLL_CONFIGURATION1 0x0000000C @@ -57,26 +56,32 @@ */ # define PLL_IDLE_TIME 100; -enum sys_clk_rate { - CLK_RATE_UNDEFINED = -1, - CLK_RATE_12MHZ, - CLK_RATE_16MHZ, - CLK_RATE_19MHZ, - CLK_RATE_20MHZ, - CLK_RATE_26MHZ, - CLK_RATE_38MHZ +struct usb_dpll_map { + unsigned long rate; + struct usb_dpll_params params; }; -static struct usb_dpll_params omap_usb3_dpll_params[NUM_SYS_CLKS] = { - {1250, 5, 4, 20, 0}, /* 12 MHz */ - {3125, 20, 4, 20, 0}, /* 16.8 MHz */ - {1172, 8, 4, 20, 65537}, /* 19.2 MHz */ - {1250, 12, 4, 20, 0}, /* 26 MHz */ - {3125, 47, 4, 20, 92843}, /* 38.4 MHz */ - {1000, 7, 4, 10, 0}, /* 20 MHz */ - +static struct usb_dpll_map dpll_map[] = { + {12000000, {1250, 5, 4, 20, 0} }, /* 12 MHz */ + {16800000, {3125, 20, 4, 20, 0} }, /* 16.8 MHz */ + {19200000, {1172, 8, 4, 20, 65537} }, /* 19.2 MHz */ + {20000000, {1000, 7, 4, 10, 0} }, /* 20 MHz */ + {26000000, {1250, 12, 4, 20, 0} }, /* 26 MHz */ + {38400000, {3125, 47, 4, 20, 92843} }, /* 38.4 MHz */ }; +static struct usb_dpll_params *omap_usb3_get_dpll_params(unsigned long rate) +{ + int i; + + for (i = 0; i < ARRAY_SIZE(dpll_map); i++) { + if (rate == dpll_map[i].rate) + return &dpll_map[i].params; + } + + return 0; +} + static int omap_usb3_suspend(struct usb_phy *x, int suspend) { struct omap_usb *phy = phy_to_omapusb(x); @@ -116,26 +121,6 @@ static int omap_usb3_suspend(struct usb_phy *x, int suspend) return 0; } -static inline enum sys_clk_rate __get_sys_clk_index(unsigned long rate) -{ - switch (rate) { - case 12000000: - return CLK_RATE_12MHZ; - case 16800000: - return CLK_RATE_16MHZ; - case 19200000: - return CLK_RATE_19MHZ; - case 20000000: - return CLK_RATE_20MHZ; - case 26000000: - return CLK_RATE_26MHZ; - case 38400000: - return CLK_RATE_38MHZ; - default: - return CLK_RATE_UNDEFINED; - } -} - static void omap_usb_dpll_relock(struct omap_usb *phy) { u32 val; @@ -155,39 +140,39 @@ static int omap_usb_dpll_lock(struct omap_usb *phy) { u32 val; unsigned long rate; - enum sys_clk_rate clk_index; - - rate = clk_get_rate(phy->sys_clk); - clk_index = __get_sys_clk_index(rate); + struct usb_dpll_params *dpll_params; - if (clk_index == CLK_RATE_UNDEFINED) { - pr_err("dpll cannot be locked for sys clk freq:%luHz\n", rate); + rate = clk_get_rate(phy->sys_clk); + dpll_params = omap_usb3_get_dpll_params(rate); + if (!dpll_params) { + dev_err(phy->dev, + "No DPLL configuration for %lu Hz SYS CLK\n", rate); return -EINVAL; } val = omap_usb_readl(phy->pll_ctrl_base, PLL_CONFIGURATION1); val &= ~PLL_REGN_MASK; - val |= omap_usb3_dpll_params[clk_index].n << PLL_REGN_SHIFT; + val |= dpll_params->n << PLL_REGN_SHIFT; omap_usb_writel(phy->pll_ctrl_base, PLL_CONFIGURATION1, val); val = omap_usb_readl(phy->pll_ctrl_base, PLL_CONFIGURATION2); val &= ~PLL_SELFREQDCO_MASK; - val |= omap_usb3_dpll_params[clk_index].freq << PLL_SELFREQDCO_SHIFT; + val |= dpll_params->freq << PLL_SELFREQDCO_SHIFT; omap_usb_writel(phy->pll_ctrl_base, PLL_CONFIGURATION2, val); val = omap_usb_readl(phy->pll_ctrl_base, PLL_CONFIGURATION1); val &= ~PLL_REGM_MASK; - val |= omap_usb3_dpll_params[clk_index].m << PLL_REGM_SHIFT; + val |= dpll_params->m << PLL_REGM_SHIFT; omap_usb_writel(phy->pll_ctrl_base, PLL_CONFIGURATION1, val); val = omap_usb_readl(phy->pll_ctrl_base, PLL_CONFIGURATION4); val &= ~PLL_REGM_F_MASK; - val |= omap_usb3_dpll_params[clk_index].mf << PLL_REGM_F_SHIFT; + val |= dpll_params->mf << PLL_REGM_F_SHIFT; omap_usb_writel(phy->pll_ctrl_base, PLL_CONFIGURATION4, val); val = omap_usb_readl(phy->pll_ctrl_base, PLL_CONFIGURATION3); val &= ~PLL_SD_MASK; - val |= omap_usb3_dpll_params[clk_index].sd << PLL_SD_SHIFT; + val |= dpll_params->sd << PLL_SD_SHIFT; omap_usb_writel(phy->pll_ctrl_base, PLL_CONFIGURATION3, val); omap_usb_dpll_relock(phy); @@ -198,8 +183,12 @@ static int omap_usb_dpll_lock(struct omap_usb *phy) static int omap_usb3_init(struct usb_phy *x) { struct omap_usb *phy = phy_to_omapusb(x); + int ret; + + ret = omap_usb_dpll_lock(phy); + if (ret) + return ret; - omap_usb_dpll_lock(phy); omap_control_usb3_phy_power(phy->control_dev, 1); return 0; diff --git a/drivers/usb/phy/phy-rcar-usb.c b/drivers/usb/phy/phy-rcar-usb.c index ae909408958..33265a5b2cd 100644 --- a/drivers/usb/phy/phy-rcar-usb.c +++ b/drivers/usb/phy/phy-rcar-usb.c @@ -83,7 +83,7 @@ static int rcar_usb_phy_init(struct usb_phy *phy) { struct rcar_usb_phy_priv *priv = usb_phy_to_priv(phy); struct device *dev = phy->dev; - struct rcar_phy_platform_data *pdata = dev->platform_data; + struct rcar_phy_platform_data *pdata = dev_get_platdata(dev); void __iomem *reg0 = priv->reg0; void __iomem *reg1 = priv->reg1; static const u8 ovcn_act[] = { OVC0_ACT, OVC1_ACT, OVC2_ACT }; @@ -184,17 +184,12 @@ static int rcar_usb_phy_probe(struct platform_device *pdev) void __iomem *reg0, *reg1 = NULL; int ret; - if (!pdev->dev.platform_data) { + if (!dev_get_platdata(&pdev->dev)) { dev_err(dev, "No platform data\n"); return -EINVAL; } res0 = platform_get_resource(pdev, IORESOURCE_MEM, 0); - if (!res0) { - dev_err(dev, "Not enough platform resources\n"); - return -EINVAL; - } - reg0 = devm_ioremap_resource(dev, res0); if (IS_ERR(reg0)) return PTR_ERR(reg0); diff --git a/drivers/usb/phy/phy-samsung-usb2.c b/drivers/usb/phy/phy-samsung-usb2.c index 1011c16ade7..ff70e4b19b9 100644 --- a/drivers/usb/phy/phy-samsung-usb2.c +++ b/drivers/usb/phy/phy-samsung-usb2.c @@ -359,7 +359,7 @@ static int samsung_usb2phy_probe(struct platform_device *pdev) { struct samsung_usbphy *sphy; struct usb_otg *otg; - struct samsung_usbphy_data *pdata = pdev->dev.platform_data; + struct samsung_usbphy_data *pdata = dev_get_platdata(&pdev->dev); const struct samsung_usbphy_drvdata *drv_data; struct device *dev = &pdev->dev; struct resource *phy_mem; @@ -388,7 +388,7 @@ static int samsung_usb2phy_probe(struct platform_device *pdev) clk = devm_clk_get(dev, "otg"); if (IS_ERR(clk)) { - dev_err(dev, "Failed to get otg clock\n"); + dev_err(dev, "Failed to get usbhost/otg clock\n"); return PTR_ERR(clk); } diff --git a/drivers/usb/phy/phy-samsung-usb3.c b/drivers/usb/phy/phy-samsung-usb3.c index 300e0cf5e31..c6eb22213de 100644 --- a/drivers/usb/phy/phy-samsung-usb3.c +++ b/drivers/usb/phy/phy-samsung-usb3.c @@ -231,7 +231,7 @@ static void samsung_usb3phy_shutdown(struct usb_phy *phy) static int samsung_usb3phy_probe(struct platform_device *pdev) { struct samsung_usbphy *sphy; - struct samsung_usbphy_data *pdata = pdev->dev.platform_data; + struct samsung_usbphy_data *pdata = dev_get_platdata(&pdev->dev); struct device *dev = &pdev->dev; struct resource *phy_mem; void __iomem *phy_base; diff --git a/drivers/usb/phy/phy-tegra-usb.c b/drivers/usb/phy/phy-tegra-usb.c index cec0855ed24..e9cb1cb8abc 100644 --- a/drivers/usb/phy/phy-tegra-usb.c +++ b/drivers/usb/phy/phy-tegra-usb.c @@ -28,20 +28,28 @@ #include <linux/io.h> #include <linux/gpio.h> #include <linux/of.h> +#include <linux/of_device.h> #include <linux/of_gpio.h> #include <linux/usb/otg.h> #include <linux/usb/ulpi.h> +#include <linux/usb/of.h> #include <asm/mach-types.h> #include <linux/usb/ehci_def.h> #include <linux/usb/tegra_usb_phy.h> +#include <linux/regulator/consumer.h> #define ULPI_VIEWPORT 0x170 -/* PORTSC registers */ +/* PORTSC PTS/PHCD bits, Tegra20 only */ #define TEGRA_USB_PORTSC1 0x184 #define TEGRA_USB_PORTSC1_PTS(x) (((x) & 0x3) << 30) #define TEGRA_USB_PORTSC1_PHCD (1 << 23) +/* HOSTPC1 PTS/PHCD bits, Tegra30 and above */ +#define TEGRA_USB_HOSTPC1_DEVLC 0x1b4 +#define TEGRA_USB_HOSTPC1_DEVLC_PTS(x) (((x) & 0x7) << 29) +#define TEGRA_USB_HOSTPC1_DEVLC_PHCD (1 << 22) + /* Bits of PORTSC1, which will get cleared by writing 1 into them */ #define TEGRA_PORTSC1_RWC_BITS (PORT_CSC | PORT_PEC | PORT_OCC) @@ -84,16 +92,22 @@ #define UTMIP_XCVR_CFG0 0x808 #define UTMIP_XCVR_SETUP(x) (((x) & 0xf) << 0) +#define UTMIP_XCVR_SETUP_MSB(x) ((((x) & 0x70) >> 4) << 22) #define UTMIP_XCVR_LSRSLEW(x) (((x) & 0x3) << 8) #define UTMIP_XCVR_LSFSLEW(x) (((x) & 0x3) << 10) #define UTMIP_FORCE_PD_POWERDOWN (1 << 14) #define UTMIP_FORCE_PD2_POWERDOWN (1 << 16) #define UTMIP_FORCE_PDZI_POWERDOWN (1 << 18) -#define UTMIP_XCVR_HSSLEW_MSB(x) (((x) & 0x7f) << 25) +#define UTMIP_XCVR_LSBIAS_SEL (1 << 21) +#define UTMIP_XCVR_HSSLEW(x) (((x) & 0x3) << 4) +#define UTMIP_XCVR_HSSLEW_MSB(x) ((((x) & 0x1fc) >> 2) << 25) #define UTMIP_BIAS_CFG0 0x80c #define UTMIP_OTGPD (1 << 11) #define UTMIP_BIASPD (1 << 10) +#define UTMIP_HSSQUELCH_LEVEL(x) (((x) & 0x3) << 0) +#define UTMIP_HSDISCON_LEVEL(x) (((x) & 0x3) << 2) +#define UTMIP_HSDISCON_LEVEL_MSB(x) ((((x) & 0x4) >> 2) << 24) #define UTMIP_HSRX_CFG0 0x810 #define UTMIP_ELASTIC_LIMIT(x) (((x) & 0x1f) << 10) @@ -137,6 +151,12 @@ #define UTMIP_BIAS_CFG1 0x83c #define UTMIP_BIAS_PDTRK_COUNT(x) (((x) & 0x1f) << 3) +/* For Tegra30 and above only, the address is different in Tegra20 */ +#define USB_USBMODE 0x1f8 +#define USB_USBMODE_MASK (3 << 0) +#define USB_USBMODE_HOST (3 << 0) +#define USB_USBMODE_DEVICE (2 << 0) + static DEFINE_SPINLOCK(utmip_pad_lock); static int utmip_pad_count; @@ -184,36 +204,22 @@ static const struct tegra_xtal_freq tegra_freq_table[] = { }, }; -static struct tegra_utmip_config utmip_default[] = { - [0] = { - .hssync_start_delay = 9, - .idle_wait_delay = 17, - .elastic_limit = 16, - .term_range_adj = 6, - .xcvr_setup = 9, - .xcvr_lsfslew = 1, - .xcvr_lsrslew = 1, - }, - [2] = { - .hssync_start_delay = 9, - .idle_wait_delay = 17, - .elastic_limit = 16, - .term_range_adj = 6, - .xcvr_setup = 9, - .xcvr_lsfslew = 2, - .xcvr_lsrslew = 2, - }, -}; - static void set_pts(struct tegra_usb_phy *phy, u8 pts_val) { void __iomem *base = phy->regs; unsigned long val; - val = readl(base + TEGRA_USB_PORTSC1) & ~TEGRA_PORTSC1_RWC_BITS; - val &= ~TEGRA_USB_PORTSC1_PTS(3); - val |= TEGRA_USB_PORTSC1_PTS(pts_val & 3); - writel(val, base + TEGRA_USB_PORTSC1); + if (phy->soc_config->has_hostpc) { + val = readl(base + TEGRA_USB_HOSTPC1_DEVLC); + val &= ~TEGRA_USB_HOSTPC1_DEVLC_PTS(~0); + val |= TEGRA_USB_HOSTPC1_DEVLC_PTS(pts_val); + writel(val, base + TEGRA_USB_HOSTPC1_DEVLC); + } else { + val = readl(base + TEGRA_USB_PORTSC1) & ~TEGRA_PORTSC1_RWC_BITS; + val &= ~TEGRA_USB_PORTSC1_PTS(~0); + val |= TEGRA_USB_PORTSC1_PTS(pts_val); + writel(val, base + TEGRA_USB_PORTSC1); + } } static void set_phcd(struct tegra_usb_phy *phy, bool enable) @@ -221,17 +227,26 @@ static void set_phcd(struct tegra_usb_phy *phy, bool enable) void __iomem *base = phy->regs; unsigned long val; - val = readl(base + TEGRA_USB_PORTSC1) & ~TEGRA_PORTSC1_RWC_BITS; - if (enable) - val |= TEGRA_USB_PORTSC1_PHCD; - else - val &= ~TEGRA_USB_PORTSC1_PHCD; - writel(val, base + TEGRA_USB_PORTSC1); + if (phy->soc_config->has_hostpc) { + val = readl(base + TEGRA_USB_HOSTPC1_DEVLC); + if (enable) + val |= TEGRA_USB_HOSTPC1_DEVLC_PHCD; + else + val &= ~TEGRA_USB_HOSTPC1_DEVLC_PHCD; + writel(val, base + TEGRA_USB_HOSTPC1_DEVLC); + } else { + val = readl(base + TEGRA_USB_PORTSC1) & ~PORT_RWC_BITS; + if (enable) + val |= TEGRA_USB_PORTSC1_PHCD; + else + val &= ~TEGRA_USB_PORTSC1_PHCD; + writel(val, base + TEGRA_USB_PORTSC1); + } } static int utmip_pad_open(struct tegra_usb_phy *phy) { - phy->pad_clk = devm_clk_get(phy->dev, "utmi-pads"); + phy->pad_clk = devm_clk_get(phy->u_phy.dev, "utmi-pads"); if (IS_ERR(phy->pad_clk)) { pr_err("%s: can't get utmip pad clock\n", __func__); return PTR_ERR(phy->pad_clk); @@ -244,6 +259,7 @@ static void utmip_pad_power_on(struct tegra_usb_phy *phy) { unsigned long val, flags; void __iomem *base = phy->pad_regs; + struct tegra_utmip_config *config = phy->config; clk_prepare_enable(phy->pad_clk); @@ -252,6 +268,16 @@ static void utmip_pad_power_on(struct tegra_usb_phy *phy) if (utmip_pad_count++ == 0) { val = readl(base + UTMIP_BIAS_CFG0); val &= ~(UTMIP_OTGPD | UTMIP_BIASPD); + + if (phy->soc_config->requires_extra_tuning_parameters) { + val &= ~(UTMIP_HSSQUELCH_LEVEL(~0) | + UTMIP_HSDISCON_LEVEL(~0) | + UTMIP_HSDISCON_LEVEL_MSB(~0)); + + val |= UTMIP_HSSQUELCH_LEVEL(config->hssquelch_level); + val |= UTMIP_HSDISCON_LEVEL(config->hsdiscon_level); + val |= UTMIP_HSDISCON_LEVEL_MSB(config->hsdiscon_level); + } writel(val, base + UTMIP_BIAS_CFG0); } @@ -361,7 +387,7 @@ static int utmi_phy_power_on(struct tegra_usb_phy *phy) } val = readl(base + UTMIP_TX_CFG0); - val &= ~UTMIP_FS_PREABMLE_J; + val |= UTMIP_FS_PREABMLE_J; writel(val, base + UTMIP_TX_CFG0); val = readl(base + UTMIP_HSRX_CFG0); @@ -384,34 +410,56 @@ static int utmi_phy_power_on(struct tegra_usb_phy *phy) val &= ~UTMIP_SUSPEND_EXIT_ON_EDGE; writel(val, base + UTMIP_MISC_CFG0); - val = readl(base + UTMIP_MISC_CFG1); - val &= ~(UTMIP_PLL_ACTIVE_DLY_COUNT(~0) | UTMIP_PLLU_STABLE_COUNT(~0)); - val |= UTMIP_PLL_ACTIVE_DLY_COUNT(phy->freq->active_delay) | - UTMIP_PLLU_STABLE_COUNT(phy->freq->stable_count); - writel(val, base + UTMIP_MISC_CFG1); - - val = readl(base + UTMIP_PLL_CFG1); - val &= ~(UTMIP_XTAL_FREQ_COUNT(~0) | UTMIP_PLLU_ENABLE_DLY_COUNT(~0)); - val |= UTMIP_XTAL_FREQ_COUNT(phy->freq->xtal_freq_count) | - UTMIP_PLLU_ENABLE_DLY_COUNT(phy->freq->enable_delay); - writel(val, base + UTMIP_PLL_CFG1); + if (!phy->soc_config->utmi_pll_config_in_car_module) { + val = readl(base + UTMIP_MISC_CFG1); + val &= ~(UTMIP_PLL_ACTIVE_DLY_COUNT(~0) | + UTMIP_PLLU_STABLE_COUNT(~0)); + val |= UTMIP_PLL_ACTIVE_DLY_COUNT(phy->freq->active_delay) | + UTMIP_PLLU_STABLE_COUNT(phy->freq->stable_count); + writel(val, base + UTMIP_MISC_CFG1); + + val = readl(base + UTMIP_PLL_CFG1); + val &= ~(UTMIP_XTAL_FREQ_COUNT(~0) | + UTMIP_PLLU_ENABLE_DLY_COUNT(~0)); + val |= UTMIP_XTAL_FREQ_COUNT(phy->freq->xtal_freq_count) | + UTMIP_PLLU_ENABLE_DLY_COUNT(phy->freq->enable_delay); + writel(val, base + UTMIP_PLL_CFG1); + } - if (phy->mode == TEGRA_USB_PHY_MODE_DEVICE) { + if (phy->mode == USB_DR_MODE_PERIPHERAL) { val = readl(base + USB_SUSP_CTRL); val &= ~(USB_WAKE_ON_CNNT_EN_DEV | USB_WAKE_ON_DISCON_EN_DEV); writel(val, base + USB_SUSP_CTRL); + + val = readl(base + UTMIP_BAT_CHRG_CFG0); + val &= ~UTMIP_PD_CHRG; + writel(val, base + UTMIP_BAT_CHRG_CFG0); + } else { + val = readl(base + UTMIP_BAT_CHRG_CFG0); + val |= UTMIP_PD_CHRG; + writel(val, base + UTMIP_BAT_CHRG_CFG0); } utmip_pad_power_on(phy); val = readl(base + UTMIP_XCVR_CFG0); val &= ~(UTMIP_FORCE_PD_POWERDOWN | UTMIP_FORCE_PD2_POWERDOWN | - UTMIP_FORCE_PDZI_POWERDOWN | UTMIP_XCVR_SETUP(~0) | - UTMIP_XCVR_LSFSLEW(~0) | UTMIP_XCVR_LSRSLEW(~0) | - UTMIP_XCVR_HSSLEW_MSB(~0)); - val |= UTMIP_XCVR_SETUP(config->xcvr_setup); + UTMIP_FORCE_PDZI_POWERDOWN | UTMIP_XCVR_LSBIAS_SEL | + UTMIP_XCVR_SETUP(~0) | UTMIP_XCVR_SETUP_MSB(~0) | + UTMIP_XCVR_LSFSLEW(~0) | UTMIP_XCVR_LSRSLEW(~0)); + + if (!config->xcvr_setup_use_fuses) { + val |= UTMIP_XCVR_SETUP(config->xcvr_setup); + val |= UTMIP_XCVR_SETUP_MSB(config->xcvr_setup); + } val |= UTMIP_XCVR_LSFSLEW(config->xcvr_lsfslew); val |= UTMIP_XCVR_LSRSLEW(config->xcvr_lsrslew); + + if (phy->soc_config->requires_extra_tuning_parameters) { + val &= ~(UTMIP_XCVR_HSSLEW(~0) | UTMIP_XCVR_HSSLEW_MSB(~0)); + val |= UTMIP_XCVR_HSSLEW(config->xcvr_hsslew); + val |= UTMIP_XCVR_HSSLEW_MSB(config->xcvr_hsslew); + } writel(val, base + UTMIP_XCVR_CFG0); val = readl(base + UTMIP_XCVR_CFG1); @@ -420,23 +468,19 @@ static int utmi_phy_power_on(struct tegra_usb_phy *phy) val |= UTMIP_XCVR_TERM_RANGE_ADJ(config->term_range_adj); writel(val, base + UTMIP_XCVR_CFG1); - val = readl(base + UTMIP_BAT_CHRG_CFG0); - val &= ~UTMIP_PD_CHRG; - writel(val, base + UTMIP_BAT_CHRG_CFG0); - val = readl(base + UTMIP_BIAS_CFG1); val &= ~UTMIP_BIAS_PDTRK_COUNT(~0); val |= UTMIP_BIAS_PDTRK_COUNT(0x5); writel(val, base + UTMIP_BIAS_CFG1); - if (phy->is_legacy_phy) { - val = readl(base + UTMIP_SPARE_CFG0); - if (phy->mode == TEGRA_USB_PHY_MODE_DEVICE) - val &= ~FUSE_SETUP_SEL; - else - val |= FUSE_SETUP_SEL; - writel(val, base + UTMIP_SPARE_CFG0); - } else { + val = readl(base + UTMIP_SPARE_CFG0); + if (config->xcvr_setup_use_fuses) + val |= FUSE_SETUP_SEL; + else + val &= ~FUSE_SETUP_SEL; + writel(val, base + UTMIP_SPARE_CFG0); + + if (!phy->is_legacy_phy) { val = readl(base + USB_SUSP_CTRL); val |= UTMIP_PHY_ENABLE; writel(val, base + USB_SUSP_CTRL); @@ -459,6 +503,16 @@ static int utmi_phy_power_on(struct tegra_usb_phy *phy) utmi_phy_clk_enable(phy); + if (phy->soc_config->requires_usbmode_setup) { + val = readl(base + USB_USBMODE); + val &= ~USB_USBMODE_MASK; + if (phy->mode == USB_DR_MODE_HOST) + val |= USB_USBMODE_HOST; + else + val |= USB_USBMODE_DEVICE; + writel(val, base + USB_USBMODE); + } + if (!phy->is_legacy_phy) set_pts(phy, 0); @@ -472,7 +526,7 @@ static int utmi_phy_power_off(struct tegra_usb_phy *phy) utmi_phy_clk_disable(phy); - if (phy->mode == TEGRA_USB_PHY_MODE_DEVICE) { + if (phy->mode == USB_DR_MODE_PERIPHERAL) { val = readl(base + USB_SUSP_CTRL); val &= ~USB_WAKEUP_DEBOUNCE_COUNT(~0); val |= USB_WAKE_ON_CNNT_EN_DEV | USB_WAKEUP_DEBOUNCE_COUNT(5); @@ -560,13 +614,15 @@ static int ulpi_phy_power_on(struct tegra_usb_phy *phy) ret = gpio_direction_output(phy->reset_gpio, 0); if (ret < 0) { - dev_err(phy->dev, "gpio %d not set to 0\n", phy->reset_gpio); + dev_err(phy->u_phy.dev, "gpio %d not set to 0\n", + phy->reset_gpio); return ret; } msleep(5); ret = gpio_direction_output(phy->reset_gpio, 1); if (ret < 0) { - dev_err(phy->dev, "gpio %d not set to 1\n", phy->reset_gpio); + dev_err(phy->u_phy.dev, "gpio %d not set to 1\n", + phy->reset_gpio); return ret; } @@ -634,6 +690,9 @@ static void tegra_usb_phy_close(struct usb_phy *x) { struct tegra_usb_phy *phy = container_of(x, struct tegra_usb_phy, u_phy); + if (!IS_ERR(phy->vbus)) + regulator_disable(phy->vbus); + clk_disable_unprepare(phy->pll_u); } @@ -666,29 +725,30 @@ static int ulpi_open(struct tegra_usb_phy *phy) { int err; - phy->clk = devm_clk_get(phy->dev, "ulpi-link"); + phy->clk = devm_clk_get(phy->u_phy.dev, "ulpi-link"); if (IS_ERR(phy->clk)) { pr_err("%s: can't get ulpi clock\n", __func__); return PTR_ERR(phy->clk); } - err = devm_gpio_request(phy->dev, phy->reset_gpio, "ulpi_phy_reset_b"); + err = devm_gpio_request(phy->u_phy.dev, phy->reset_gpio, + "ulpi_phy_reset_b"); if (err < 0) { - dev_err(phy->dev, "request failed for gpio: %d\n", + dev_err(phy->u_phy.dev, "request failed for gpio: %d\n", phy->reset_gpio); return err; } err = gpio_direction_output(phy->reset_gpio, 0); if (err < 0) { - dev_err(phy->dev, "gpio %d direction not set to output\n", + dev_err(phy->u_phy.dev, "gpio %d direction not set to output\n", phy->reset_gpio); return err; } phy->ulpi = otg_ulpi_create(&ulpi_viewport_access_ops, 0); if (!phy->ulpi) { - dev_err(phy->dev, "otg_ulpi_create returned NULL\n"); + dev_err(phy->u_phy.dev, "otg_ulpi_create returned NULL\n"); err = -ENOMEM; return err; } @@ -703,14 +763,7 @@ static int tegra_usb_phy_init(struct tegra_usb_phy *phy) int i; int err; - if (!phy->is_ulpi_phy) { - if (phy->is_legacy_phy) - phy->config = &utmip_default[0]; - else - phy->config = &utmip_default[2]; - } - - phy->pll_u = devm_clk_get(phy->dev, "pll_u"); + phy->pll_u = devm_clk_get(phy->u_phy.dev, "pll_u"); if (IS_ERR(phy->pll_u)) { pr_err("Can't get pll_u clock\n"); return PTR_ERR(phy->pll_u); @@ -733,6 +786,16 @@ static int tegra_usb_phy_init(struct tegra_usb_phy *phy) goto fail; } + if (!IS_ERR(phy->vbus)) { + err = regulator_enable(phy->vbus); + if (err) { + dev_err(phy->u_phy.dev, + "failed to enable usb vbus regulator: %d\n", + err); + goto fail; + } + } + if (phy->is_ulpi_phy) err = ulpi_open(phy); else @@ -784,11 +847,138 @@ void tegra_ehci_phy_restore_end(struct usb_phy *x) } EXPORT_SYMBOL_GPL(tegra_ehci_phy_restore_end); +static int read_utmi_param(struct platform_device *pdev, const char *param, + u8 *dest) +{ + u32 value; + int err = of_property_read_u32(pdev->dev.of_node, param, &value); + *dest = (u8)value; + if (err < 0) + dev_err(&pdev->dev, "Failed to read USB UTMI parameter %s: %d\n", + param, err); + return err; +} + +static int utmi_phy_probe(struct tegra_usb_phy *tegra_phy, + struct platform_device *pdev) +{ + struct resource *res; + int err; + struct tegra_utmip_config *config; + + tegra_phy->is_ulpi_phy = false; + + res = platform_get_resource(pdev, IORESOURCE_MEM, 1); + if (!res) { + dev_err(&pdev->dev, "Failed to get UTMI Pad regs\n"); + return -ENXIO; + } + + tegra_phy->pad_regs = devm_ioremap(&pdev->dev, res->start, + resource_size(res)); + if (!tegra_phy->regs) { + dev_err(&pdev->dev, "Failed to remap UTMI Pad regs\n"); + return -ENOMEM; + } + + tegra_phy->config = devm_kzalloc(&pdev->dev, + sizeof(*tegra_phy->config), GFP_KERNEL); + if (!tegra_phy->config) { + dev_err(&pdev->dev, + "unable to allocate memory for USB UTMIP config\n"); + return -ENOMEM; + } + + config = tegra_phy->config; + + err = read_utmi_param(pdev, "nvidia,hssync-start-delay", + &config->hssync_start_delay); + if (err < 0) + return err; + + err = read_utmi_param(pdev, "nvidia,elastic-limit", + &config->elastic_limit); + if (err < 0) + return err; + + err = read_utmi_param(pdev, "nvidia,idle-wait-delay", + &config->idle_wait_delay); + if (err < 0) + return err; + + err = read_utmi_param(pdev, "nvidia,term-range-adj", + &config->term_range_adj); + if (err < 0) + return err; + + err = read_utmi_param(pdev, "nvidia,xcvr-lsfslew", + &config->xcvr_lsfslew); + if (err < 0) + return err; + + err = read_utmi_param(pdev, "nvidia,xcvr-lsrslew", + &config->xcvr_lsrslew); + if (err < 0) + return err; + + if (tegra_phy->soc_config->requires_extra_tuning_parameters) { + err = read_utmi_param(pdev, "nvidia,xcvr-hsslew", + &config->xcvr_hsslew); + if (err < 0) + return err; + + err = read_utmi_param(pdev, "nvidia,hssquelch-level", + &config->hssquelch_level); + if (err < 0) + return err; + + err = read_utmi_param(pdev, "nvidia,hsdiscon-level", + &config->hsdiscon_level); + if (err < 0) + return err; + } + + config->xcvr_setup_use_fuses = of_property_read_bool( + pdev->dev.of_node, "nvidia,xcvr-setup-use-fuses"); + + if (!config->xcvr_setup_use_fuses) { + err = read_utmi_param(pdev, "nvidia,xcvr-setup", + &config->xcvr_setup); + if (err < 0) + return err; + } + + return 0; +} + +static const struct tegra_phy_soc_config tegra20_soc_config = { + .utmi_pll_config_in_car_module = false, + .has_hostpc = false, + .requires_usbmode_setup = false, + .requires_extra_tuning_parameters = false, +}; + +static const struct tegra_phy_soc_config tegra30_soc_config = { + .utmi_pll_config_in_car_module = true, + .has_hostpc = true, + .requires_usbmode_setup = true, + .requires_extra_tuning_parameters = true, +}; + +static struct of_device_id tegra_usb_phy_id_table[] = { + { .compatible = "nvidia,tegra30-usb-phy", .data = &tegra30_soc_config }, + { .compatible = "nvidia,tegra20-usb-phy", .data = &tegra20_soc_config }, + { }, +}; +MODULE_DEVICE_TABLE(of, tegra_usb_phy_id_table); + static int tegra_usb_phy_probe(struct platform_device *pdev) { + const struct of_device_id *match; struct resource *res; struct tegra_usb_phy *tegra_phy = NULL; struct device_node *np = pdev->dev.of_node; + enum usb_phy_interface phy_type; int err; tegra_phy = devm_kzalloc(&pdev->dev, sizeof(*tegra_phy), GFP_KERNEL); @@ -797,6 +987,13 @@ static int tegra_usb_phy_probe(struct platform_device *pdev) return -ENOMEM; } + match = of_match_device(tegra_usb_phy_id_table, &pdev->dev); + if (!match) { + dev_err(&pdev->dev, "Error: No device match found\n"); + return -ENODEV; + } + tegra_phy->soc_config = match->data; + res = platform_get_resource(pdev, IORESOURCE_MEM, 0); if (!res) { dev_err(&pdev->dev, "Failed to get I/O memory\n"); @@ -813,23 +1010,15 @@ static int tegra_usb_phy_probe(struct platform_device *pdev) tegra_phy->is_legacy_phy = of_property_read_bool(np, "nvidia,has-legacy-mode"); - err = of_property_match_string(np, "phy_type", "ulpi"); - if (err < 0) { - tegra_phy->is_ulpi_phy = false; - - res = platform_get_resource(pdev, IORESOURCE_MEM, 1); - if (!res) { - dev_err(&pdev->dev, "Failed to get UTMI Pad regs\n"); - return -ENXIO; - } + phy_type = of_usb_get_phy_mode(np); + switch (phy_type) { + case USBPHY_INTERFACE_MODE_UTMI: + err = utmi_phy_probe(tegra_phy, pdev); + if (err < 0) + return err; + break; - tegra_phy->pad_regs = devm_ioremap(&pdev->dev, res->start, - resource_size(res)); - if (!tegra_phy->regs) { - dev_err(&pdev->dev, "Failed to remap UTMI Pad regs\n"); - return -ENOMEM; - } - } else { + case USBPHY_INTERFACE_MODE_ULPI: tegra_phy->is_ulpi_phy = true; tegra_phy->reset_gpio = @@ -839,19 +1028,35 @@ static int tegra_usb_phy_probe(struct platform_device *pdev) tegra_phy->reset_gpio); return tegra_phy->reset_gpio; } + tegra_phy->config = NULL; + break; + + default: + dev_err(&pdev->dev, "phy_type is invalid or unsupported\n"); + return -EINVAL; } - err = of_property_match_string(np, "dr_mode", "otg"); - if (err < 0) { - err = of_property_match_string(np, "dr_mode", "peripheral"); - if (err < 0) - tegra_phy->mode = TEGRA_USB_PHY_MODE_HOST; - else - tegra_phy->mode = TEGRA_USB_PHY_MODE_DEVICE; - } else - tegra_phy->mode = TEGRA_USB_PHY_MODE_OTG; + if (of_find_property(np, "dr_mode", NULL)) + tegra_phy->mode = of_usb_get_dr_mode(np); + else + tegra_phy->mode = USB_DR_MODE_HOST; - tegra_phy->dev = &pdev->dev; + if (tegra_phy->mode == USB_DR_MODE_UNKNOWN) { + dev_err(&pdev->dev, "dr_mode is invalid\n"); + return -EINVAL; + } + + /* On some boards, the VBUS regulator doesn't need to be controlled */ + if (of_find_property(np, "vbus-supply", NULL)) { + tegra_phy->vbus = devm_regulator_get(&pdev->dev, "vbus"); + if (IS_ERR(tegra_phy->vbus)) + return PTR_ERR(tegra_phy->vbus); + } else { + dev_notice(&pdev->dev, "no vbus regulator"); + tegra_phy->vbus = ERR_PTR(-ENODEV); + } + + tegra_phy->u_phy.dev = &pdev->dev; err = tegra_usb_phy_init(tegra_phy); if (err < 0) return err; @@ -859,18 +1064,29 @@ static int tegra_usb_phy_probe(struct platform_device *pdev) tegra_phy->u_phy.shutdown = tegra_usb_phy_close; tegra_phy->u_phy.set_suspend = tegra_usb_phy_suspend; - dev_set_drvdata(&pdev->dev, tegra_phy); + platform_set_drvdata(pdev, tegra_phy); + + err = usb_add_phy_dev(&tegra_phy->u_phy); + if (err < 0) { + tegra_usb_phy_close(&tegra_phy->u_phy); + return err; + } + return 0; } -static struct of_device_id tegra_usb_phy_id_table[] = { - { .compatible = "nvidia,tegra20-usb-phy", }, - { }, -}; -MODULE_DEVICE_TABLE(of, tegra_usb_phy_id_table); +static int tegra_usb_phy_remove(struct platform_device *pdev) +{ + struct tegra_usb_phy *tegra_phy = platform_get_drvdata(pdev); + + usb_remove_phy(&tegra_phy->u_phy); + + return 0; +} static struct platform_driver tegra_usb_phy_driver = { .probe = tegra_usb_phy_probe, + .remove = tegra_usb_phy_remove, .driver = { .name = "tegra-phy", .owner = THIS_MODULE, @@ -879,29 +1095,5 @@ static struct platform_driver tegra_usb_phy_driver = { }; module_platform_driver(tegra_usb_phy_driver); -static int tegra_usb_phy_match(struct device *dev, void *data) -{ - struct tegra_usb_phy *tegra_phy = dev_get_drvdata(dev); - struct device_node *dn = data; - - return (tegra_phy->dev->of_node == dn) ? 1 : 0; -} - -struct usb_phy *tegra_usb_get_phy(struct device_node *dn) -{ - struct device *dev; - struct tegra_usb_phy *tegra_phy; - - dev = driver_find_device(&tegra_usb_phy_driver.driver, NULL, dn, - tegra_usb_phy_match); - if (!dev) - return ERR_PTR(-EPROBE_DEFER); - - tegra_phy = dev_get_drvdata(dev); - - return &tegra_phy->u_phy; -} -EXPORT_SYMBOL_GPL(tegra_usb_get_phy); - MODULE_DESCRIPTION("Tegra USB PHY driver"); MODULE_LICENSE("GPL v2"); diff --git a/drivers/usb/phy/phy-twl4030-usb.c b/drivers/usb/phy/phy-twl4030-usb.c index 8f78d2d4072..90730c8762b 100644 --- a/drivers/usb/phy/phy-twl4030-usb.c +++ b/drivers/usb/phy/phy-twl4030-usb.c @@ -648,7 +648,7 @@ static int twl4030_set_host(struct usb_otg *otg, struct usb_bus *host) static int twl4030_usb_probe(struct platform_device *pdev) { - struct twl4030_usb_data *pdata = pdev->dev.platform_data; + struct twl4030_usb_data *pdata = dev_get_platdata(&pdev->dev); struct twl4030_usb *twl; int status, err; struct usb_otg *otg; diff --git a/drivers/usb/phy/phy-twl6030-usb.c b/drivers/usb/phy/phy-twl6030-usb.c index 1753bd367e0..16dbc938267 100644 --- a/drivers/usb/phy/phy-twl6030-usb.c +++ b/drivers/usb/phy/phy-twl6030-usb.c @@ -324,7 +324,7 @@ static int twl6030_usb_probe(struct platform_device *pdev) int status, err; struct device_node *np = pdev->dev.of_node; struct device *dev = &pdev->dev; - struct twl4030_usb_data *pdata = dev->platform_data; + struct twl4030_usb_data *pdata = dev_get_platdata(dev); twl = devm_kzalloc(dev, sizeof *twl, GFP_KERNEL); if (!twl) |