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Merge branch 'omap/ehci' into next/drivers

Browse source 
* omap/ehci:
  MFD: OMAP: USB: Runtime PM support
  ARM: OMAP: USBHOST: Replace usbhs core driver APIs by Runtime pm APIs
  ARM: OMAP: USB: device name change for the clk names of usbhs
  ARM: OMAP: USB: register hwmods of usbhs
This commit is contained in:
Arnd Bergmann 2011-12-27 22:05:29 +00:00
commit 9f9f265b0b
7 changed files with 394 additions and 585 deletions
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26
arch/arm/mach-omap2/clock3xxx_data.c
View file

@ -3297,7 +3297,7 @@ static struct omap_clk omap3xxx_clks[] = {
CLK(NULL, "cpefuse_fck", &cpefuse_fck, CK_3430ES2PLUS | CK_AM35XX | CK_36XX),
CLK(NULL, "ts_fck", &ts_fck, CK_3430ES2PLUS | CK_AM35XX | CK_36XX),
CLK(NULL, "usbtll_fck", &usbtll_fck, CK_3430ES2PLUS | CK_AM35XX | CK_36XX),
CLK("usbhs-omap.0", "usbtll_fck", &usbtll_fck, CK_3430ES2PLUS | CK_AM35XX | CK_36XX),
CLK("usbhs_omap", "usbtll_fck", &usbtll_fck, CK_3430ES2PLUS | CK_AM35XX | CK_36XX),
CLK("omap-mcbsp.1", "prcm_fck", &core_96m_fck, CK_3XXX),
CLK("omap-mcbsp.5", "prcm_fck", &core_96m_fck, CK_3XXX),
CLK(NULL, "core_96m_fck", &core_96m_fck, CK_3XXX),
@ -3333,7 +3333,7 @@ static struct omap_clk omap3xxx_clks[] = {
CLK(NULL, "pka_ick", &pka_ick, CK_34XX | CK_36XX),
CLK(NULL, "core_l4_ick", &core_l4_ick, CK_3XXX),
CLK(NULL, "usbtll_ick", &usbtll_ick, CK_3430ES2PLUS | CK_AM35XX | CK_36XX),
CLK("usbhs-omap.0", "usbtll_ick", &usbtll_ick, CK_3430ES2PLUS | CK_AM35XX | CK_36XX),
CLK("usbhs_omap", "usbtll_ick", &usbtll_ick, CK_3430ES2PLUS | CK_AM35XX | CK_36XX),
CLK("omap_hsmmc.2", "ick", &mmchs3_ick, CK_3430ES2PLUS | CK_AM35XX | CK_36XX),
CLK(NULL, "icr_ick", &icr_ick, CK_34XX | CK_36XX),
CLK("omap-aes", "ick", &aes2_ick, CK_34XX | CK_36XX),
@ -3379,20 +3379,18 @@ static struct omap_clk omap3xxx_clks[] = {
CLK(NULL, "cam_ick", &cam_ick, CK_34XX | CK_36XX),
CLK(NULL, "csi2_96m_fck", &csi2_96m_fck, CK_34XX | CK_36XX),
CLK(NULL, "usbhost_120m_fck", &usbhost_120m_fck, CK_3430ES2PLUS | CK_AM35XX | CK_36XX),
CLK("usbhs-omap.0", "hs_fck", &usbhost_120m_fck, CK_3430ES2PLUS | CK_AM35XX | CK_36XX),
CLK(NULL, "usbhost_48m_fck", &usbhost_48m_fck, CK_3430ES2PLUS | CK_AM35XX | CK_36XX),
CLK("usbhs-omap.0", "fs_fck", &usbhost_48m_fck, CK_3430ES2PLUS | CK_AM35XX | CK_36XX),
CLK(NULL, "usbhost_ick", &usbhost_ick, CK_3430ES2PLUS | CK_AM35XX | CK_36XX),
CLK("usbhs-omap.0", "usbhost_ick", &usbhost_ick, CK_3430ES2PLUS | CK_AM35XX | CK_36XX),
CLK("usbhs-omap.0", "utmi_p1_gfclk", &dummy_ck, CK_3XXX),
CLK("usbhs-omap.0", "utmi_p2_gfclk", &dummy_ck, CK_3XXX),
CLK("usbhs-omap.0", "xclk60mhsp1_ck", &dummy_ck, CK_3XXX),
CLK("usbhs-omap.0", "xclk60mhsp2_ck", &dummy_ck, CK_3XXX),
CLK("usbhs-omap.0", "usb_host_hs_utmi_p1_clk", &dummy_ck, CK_3XXX),
CLK("usbhs-omap.0", "usb_host_hs_utmi_p2_clk", &dummy_ck, CK_3XXX),
CLK("usbhs-omap.0", "usb_tll_hs_usb_ch0_clk", &dummy_ck, CK_3XXX),
CLK("usbhs-omap.0", "usb_tll_hs_usb_ch1_clk", &dummy_ck, CK_3XXX),
CLK("usbhs-omap.0", "init_60m_fclk", &dummy_ck, CK_3XXX),
CLK("usbhs_omap", "usbhost_ick", &usbhost_ick, CK_3430ES2PLUS | CK_AM35XX | CK_36XX),
CLK("usbhs_omap", "utmi_p1_gfclk", &dummy_ck, CK_3XXX),
CLK("usbhs_omap", "utmi_p2_gfclk", &dummy_ck, CK_3XXX),
CLK("usbhs_omap", "xclk60mhsp1_ck", &dummy_ck, CK_3XXX),
CLK("usbhs_omap", "xclk60mhsp2_ck", &dummy_ck, CK_3XXX),
CLK("usbhs_omap", "usb_host_hs_utmi_p1_clk", &dummy_ck, CK_3XXX),
CLK("usbhs_omap", "usb_host_hs_utmi_p2_clk", &dummy_ck, CK_3XXX),
CLK("usbhs_omap", "usb_tll_hs_usb_ch0_clk", &dummy_ck, CK_3XXX),
CLK("usbhs_omap", "usb_tll_hs_usb_ch1_clk", &dummy_ck, CK_3XXX),
CLK("usbhs_omap", "init_60m_fclk", &dummy_ck, CK_3XXX),
CLK(NULL, "usim_fck", &usim_fck, CK_3430ES2PLUS | CK_36XX),
CLK(NULL, "gpt1_fck", &gpt1_fck, CK_3XXX),
CLK(NULL, "wkup_32k_fck", &wkup_32k_fck, CK_3XXX),

10
arch/arm/mach-omap2/clock44xx_data.c
View file

@ -3295,7 +3295,7 @@ static struct omap_clk omap44xx_clks[] = {
CLK(NULL, "uart2_fck", &uart2_fck, CK_443X),
CLK(NULL, "uart3_fck", &uart3_fck, CK_443X),
CLK(NULL, "uart4_fck", &uart4_fck, CK_443X),
CLK("usbhs-omap.0", "fs_fck", &usb_host_fs_fck, CK_443X),
CLK("usbhs_omap", "fs_fck", &usb_host_fs_fck, CK_443X),
CLK(NULL, "utmi_p1_gfclk", &utmi_p1_gfclk, CK_443X),
CLK(NULL, "usb_host_hs_utmi_p1_clk", &usb_host_hs_utmi_p1_clk, CK_443X),
CLK(NULL, "utmi_p2_gfclk", &utmi_p2_gfclk, CK_443X),
@ -3306,7 +3306,7 @@ static struct omap_clk omap44xx_clks[] = {
CLK(NULL, "usb_host_hs_hsic60m_p2_clk", &usb_host_hs_hsic60m_p2_clk, CK_443X),
CLK(NULL, "usb_host_hs_hsic480m_p2_clk", &usb_host_hs_hsic480m_p2_clk, CK_443X),
CLK(NULL, "usb_host_hs_func48mclk", &usb_host_hs_func48mclk, CK_443X),
CLK("usbhs-omap.0", "hs_fck", &usb_host_hs_fck, CK_443X),
CLK("usbhs_omap", "hs_fck", &usb_host_hs_fck, CK_443X),
CLK(NULL, "otg_60m_gfclk", &otg_60m_gfclk, CK_443X),
CLK(NULL, "usb_otg_hs_xclk", &usb_otg_hs_xclk, CK_443X),
CLK("musb-omap2430", "ick", &usb_otg_hs_ick, CK_443X),
@ -3314,7 +3314,7 @@ static struct omap_clk omap44xx_clks[] = {
CLK(NULL, "usb_tll_hs_usb_ch2_clk", &usb_tll_hs_usb_ch2_clk, CK_443X),
CLK(NULL, "usb_tll_hs_usb_ch0_clk", &usb_tll_hs_usb_ch0_clk, CK_443X),
CLK(NULL, "usb_tll_hs_usb_ch1_clk", &usb_tll_hs_usb_ch1_clk, CK_443X),
CLK("usbhs-omap.0", "usbtll_ick", &usb_tll_hs_ick, CK_443X),
CLK("usbhs_omap", "usbtll_ick", &usb_tll_hs_ick, CK_443X),
CLK(NULL, "usim_ck", &usim_ck, CK_443X),
CLK(NULL, "usim_fclk", &usim_fclk, CK_443X),
CLK(NULL, "usim_fck", &usim_fck, CK_443X),
@ -3374,8 +3374,8 @@ static struct omap_clk omap44xx_clks[] = {
CLK(NULL, "uart2_ick", &dummy_ck, CK_443X),
CLK(NULL, "uart3_ick", &dummy_ck, CK_443X),
CLK(NULL, "uart4_ick", &dummy_ck, CK_443X),
CLK("usbhs-omap.0", "usbhost_ick", &dummy_ck, CK_443X),
CLK("usbhs-omap.0", "usbtll_fck", &dummy_ck, CK_443X),
CLK("usbhs_omap", "usbhost_ick", &dummy_ck, CK_443X),
CLK("usbhs_omap", "usbtll_fck", &dummy_ck, CK_443X),
CLK("omap_wdt", "ick", &dummy_ck, CK_443X),
CLK("omap_timer.1", "32k_ck", &sys_32k_ck, CK_443X),
CLK("omap_timer.2", "32k_ck", &sys_32k_ck, CK_443X),

100
arch/arm/mach-omap2/usb-host.c
View file

@ -28,51 +28,28 @@
#include <mach/hardware.h>
#include <mach/irqs.h>
#include <plat/usb.h>
#include <plat/omap_device.h>
#include "mux.h"
#ifdef CONFIG_MFD_OMAP_USB_HOST
#define OMAP_USBHS_DEVICE "usbhs-omap"
static struct resource usbhs_resources[] = {
{
.name = "uhh",
.flags = IORESOURCE_MEM,
},
{
.name = "tll",
.flags = IORESOURCE_MEM,
},
{
.name = "ehci",
.flags = IORESOURCE_MEM,
},
{
.name = "ehci-irq",
.flags = IORESOURCE_IRQ,
},
{
.name = "ohci",
.flags = IORESOURCE_MEM,
},
{
.name = "ohci-irq",
.flags = IORESOURCE_IRQ,
}
};
static struct platform_device usbhs_device = {
.name = OMAP_USBHS_DEVICE,
.id = 0,
.num_resources = ARRAY_SIZE(usbhs_resources),
.resource = usbhs_resources,
};
#define OMAP_USBHS_DEVICE "usbhs_omap"
#define USBHS_UHH_HWMODNAME "usb_host_hs"
#define USBHS_TLL_HWMODNAME "usb_tll_hs"
static struct usbhs_omap_platform_data usbhs_data;
static struct ehci_hcd_omap_platform_data ehci_data;
static struct ohci_hcd_omap_platform_data ohci_data;
static struct omap_device_pm_latency omap_uhhtll_latency[] = {
{
.deactivate_func = omap_device_idle_hwmods,
.activate_func = omap_device_enable_hwmods,
.flags = OMAP_DEVICE_LATENCY_AUTO_ADJUST,
},
};
/* MUX settings for EHCI pins */
/*
* setup_ehci_io_mux - initialize IO pad mux for USBHOST
@ -508,7 +485,10 @@ static void setup_4430ohci_io_mux(const enum usbhs_omap_port_mode *port_mode)
void __init usbhs_init(const struct usbhs_omap_board_data *pdata)
{
int i;
struct omap_hwmod *oh[2];
struct omap_device *od;
int bus_id = -1;
int i;
for (i = 0; i < OMAP3_HS_USB_PORTS; i++) {
usbhs_data.port_mode[i] = pdata->port_mode[i];
@ -523,44 +503,34 @@ void __init usbhs_init(const struct usbhs_omap_board_data *pdata)
usbhs_data.ohci_data = &ohci_data;
if (cpu_is_omap34xx()) {
usbhs_resources[0].start = OMAP34XX_UHH_CONFIG_BASE;
usbhs_resources[0].end = OMAP34XX_UHH_CONFIG_BASE + SZ_1K - 1;
usbhs_resources[1].start = OMAP34XX_USBTLL_BASE;
usbhs_resources[1].end = OMAP34XX_USBTLL_BASE + SZ_4K - 1;
usbhs_resources[2].start = OMAP34XX_EHCI_BASE;
usbhs_resources[2].end = OMAP34XX_EHCI_BASE + SZ_1K - 1;
usbhs_resources[3].start = INT_34XX_EHCI_IRQ;
usbhs_resources[4].start = OMAP34XX_OHCI_BASE;
usbhs_resources[4].end = OMAP34XX_OHCI_BASE + SZ_1K - 1;
usbhs_resources[5].start = INT_34XX_OHCI_IRQ;
setup_ehci_io_mux(pdata->port_mode);
setup_ohci_io_mux(pdata->port_mode);
} else if (cpu_is_omap44xx()) {
usbhs_resources[0].start = OMAP44XX_UHH_CONFIG_BASE;
usbhs_resources[0].end = OMAP44XX_UHH_CONFIG_BASE + SZ_1K - 1;
usbhs_resources[1].start = OMAP44XX_USBTLL_BASE;
usbhs_resources[1].end = OMAP44XX_USBTLL_BASE + SZ_4K - 1;
usbhs_resources[2].start = OMAP44XX_HSUSB_EHCI_BASE;
usbhs_resources[2].end = OMAP44XX_HSUSB_EHCI_BASE + SZ_1K - 1;
usbhs_resources[3].start = OMAP44XX_IRQ_EHCI;
usbhs_resources[4].start = OMAP44XX_HSUSB_OHCI_BASE;
usbhs_resources[4].end = OMAP44XX_HSUSB_OHCI_BASE + SZ_1K - 1;
usbhs_resources[5].start = OMAP44XX_IRQ_OHCI;
setup_4430ehci_io_mux(pdata->port_mode);
setup_4430ohci_io_mux(pdata->port_mode);
}
if (platform_device_add_data(&usbhs_device,
&usbhs_data, sizeof(usbhs_data)) < 0) {
printk(KERN_ERR "USBHS platform_device_add_data failed\n");
goto init_end;
oh[0] = omap_hwmod_lookup(USBHS_UHH_HWMODNAME);
if (!oh[0]) {
pr_err("Could not look up %s\n", USBHS_UHH_HWMODNAME);
return;
}
if (platform_device_register(&usbhs_device) < 0)
printk(KERN_ERR "USBHS platform_device_register failed\n");
oh[1] = omap_hwmod_lookup(USBHS_TLL_HWMODNAME);
if (!oh[1]) {
pr_err("Could not look up %s\n", USBHS_TLL_HWMODNAME);
return;
}
init_end:
return;
od = omap_device_build_ss(OMAP_USBHS_DEVICE, bus_id, oh, 2,
(void *)&usbhs_data, sizeof(usbhs_data),
omap_uhhtll_latency,
ARRAY_SIZE(omap_uhhtll_latency), false);
if (IS_ERR(od)) {
pr_err("Could not build hwmod devices %s,%s\n",
USBHS_UHH_HWMODNAME, USBHS_TLL_HWMODNAME);
return;
}
}
#else
@ -570,5 +540,3 @@ void __init usbhs_init(const struct usbhs_omap_board_data *pdata)
}
#endif

3
arch/arm/plat-omap/include/plat/usb.h
View file

@ -100,9 +100,6 @@ extern void usb_musb_init(struct omap_musb_board_data *board_data);
extern void usbhs_init(const struct usbhs_omap_board_data *pdata);
extern int omap_usbhs_enable(struct device *dev);
extern void omap_usbhs_disable(struct device *dev);
extern int omap4430_phy_power(struct device *dev, int ID, int on);
extern int omap4430_phy_set_clk(struct device *dev, int on);
extern int omap4430_phy_init(struct device *dev);

805
drivers/mfd/omap-usb-host.c
View file

@ -27,8 +27,9 @@
#include <linux/spinlock.h>
#include <linux/gpio.h>
#include <plat/usb.h>
#include <linux/pm_runtime.h>
#define USBHS_DRIVER_NAME "usbhs-omap"
#define USBHS_DRIVER_NAME "usbhs_omap"
#define OMAP_EHCI_DEVICE "ehci-omap"
#define OMAP_OHCI_DEVICE "ohci-omap3"
@ -147,9 +148,6 @@
struct usbhs_hcd_omap {
struct clk *usbhost_ick;
struct clk *usbhost_hs_fck;
struct clk *usbhost_fs_fck;
struct clk *xclk60mhsp1_ck;
struct clk *xclk60mhsp2_ck;
struct clk *utmi_p1_fck;
@ -159,8 +157,7 @@ struct usbhs_hcd_omap {
struct clk *usbhost_p2_fck;
struct clk *usbtll_p2_fck;
struct clk *init_60m_fclk;
struct clk *usbtll_fck;
struct clk *usbtll_ick;
struct clk *ehci_logic_fck;
void __iomem *uhh_base;
void __iomem *tll_base;
@ -169,7 +166,6 @@ struct usbhs_hcd_omap {
u32 usbhs_rev;
spinlock_t lock;
int count;
};
/*-------------------------------------------------------------------------*/
@ -319,269 +315,6 @@ static int omap_usbhs_alloc_children(struct platform_device *pdev)
return ret;
}
/**
* usbhs_omap_probe - initialize TI-based HCDs
*
* Allocates basic resources for this USB host controller.
*/
static int __devinit usbhs_omap_probe(struct platform_device *pdev)
{
struct device *dev = &pdev->dev;
struct usbhs_omap_platform_data *pdata = dev->platform_data;
struct usbhs_hcd_omap *omap;
struct resource *res;
int ret = 0;
int i;
if (!pdata) {
dev_err(dev, "Missing platform data\n");
ret = -ENOMEM;
goto end_probe;
}
omap = kzalloc(sizeof(*omap), GFP_KERNEL);
if (!omap) {
dev_err(dev, "Memory allocation failed\n");
ret = -ENOMEM;
goto end_probe;
}
spin_lock_init(&omap->lock);
for (i = 0; i < OMAP3_HS_USB_PORTS; i++)
omap->platdata.port_mode[i] = pdata->port_mode[i];
omap->platdata.ehci_data = pdata->ehci_data;
omap->platdata.ohci_data = pdata->ohci_data;
omap->usbhost_ick = clk_get(dev, "usbhost_ick");
if (IS_ERR(omap->usbhost_ick)) {
ret = PTR_ERR(omap->usbhost_ick);
dev_err(dev, "usbhost_ick failed error:%d\n", ret);
goto err_end;
}
omap->usbhost_hs_fck = clk_get(dev, "hs_fck");
if (IS_ERR(omap->usbhost_hs_fck)) {
ret = PTR_ERR(omap->usbhost_hs_fck);
dev_err(dev, "usbhost_hs_fck failed error:%d\n", ret);
goto err_usbhost_ick;
}
omap->usbhost_fs_fck = clk_get(dev, "fs_fck");
if (IS_ERR(omap->usbhost_fs_fck)) {
ret = PTR_ERR(omap->usbhost_fs_fck);
dev_err(dev, "usbhost_fs_fck failed error:%d\n", ret);
goto err_usbhost_hs_fck;
}
omap->usbtll_fck = clk_get(dev, "usbtll_fck");
if (IS_ERR(omap->usbtll_fck)) {
ret = PTR_ERR(omap->usbtll_fck);
dev_err(dev, "usbtll_fck failed error:%d\n", ret);
goto err_usbhost_fs_fck;
}
omap->usbtll_ick = clk_get(dev, "usbtll_ick");
if (IS_ERR(omap->usbtll_ick)) {
ret = PTR_ERR(omap->usbtll_ick);
dev_err(dev, "usbtll_ick failed error:%d\n", ret);
goto err_usbtll_fck;
}
omap->utmi_p1_fck = clk_get(dev, "utmi_p1_gfclk");
if (IS_ERR(omap->utmi_p1_fck)) {
ret = PTR_ERR(omap->utmi_p1_fck);
dev_err(dev, "utmi_p1_gfclk failed error:%d\n", ret);
goto err_usbtll_ick;
}
omap->xclk60mhsp1_ck = clk_get(dev, "xclk60mhsp1_ck");
if (IS_ERR(omap->xclk60mhsp1_ck)) {
ret = PTR_ERR(omap->xclk60mhsp1_ck);
dev_err(dev, "xclk60mhsp1_ck failed error:%d\n", ret);
goto err_utmi_p1_fck;
}
omap->utmi_p2_fck = clk_get(dev, "utmi_p2_gfclk");
if (IS_ERR(omap->utmi_p2_fck)) {
ret = PTR_ERR(omap->utmi_p2_fck);
dev_err(dev, "utmi_p2_gfclk failed error:%d\n", ret);
goto err_xclk60mhsp1_ck;
}
omap->xclk60mhsp2_ck = clk_get(dev, "xclk60mhsp2_ck");
if (IS_ERR(omap->xclk60mhsp2_ck)) {
ret = PTR_ERR(omap->xclk60mhsp2_ck);
dev_err(dev, "xclk60mhsp2_ck failed error:%d\n", ret);
goto err_utmi_p2_fck;
}
omap->usbhost_p1_fck = clk_get(dev, "usb_host_hs_utmi_p1_clk");
if (IS_ERR(omap->usbhost_p1_fck)) {
ret = PTR_ERR(omap->usbhost_p1_fck);
dev_err(dev, "usbhost_p1_fck failed error:%d\n", ret);
goto err_xclk60mhsp2_ck;
}
omap->usbtll_p1_fck = clk_get(dev, "usb_tll_hs_usb_ch0_clk");
if (IS_ERR(omap->usbtll_p1_fck)) {
ret = PTR_ERR(omap->usbtll_p1_fck);
dev_err(dev, "usbtll_p1_fck failed error:%d\n", ret);
goto err_usbhost_p1_fck;
}
omap->usbhost_p2_fck = clk_get(dev, "usb_host_hs_utmi_p2_clk");
if (IS_ERR(omap->usbhost_p2_fck)) {
ret = PTR_ERR(omap->usbhost_p2_fck);
dev_err(dev, "usbhost_p2_fck failed error:%d\n", ret);
goto err_usbtll_p1_fck;
}
omap->usbtll_p2_fck = clk_get(dev, "usb_tll_hs_usb_ch1_clk");
if (IS_ERR(omap->usbtll_p2_fck)) {
ret = PTR_ERR(omap->usbtll_p2_fck);
dev_err(dev, "usbtll_p2_fck failed error:%d\n", ret);
goto err_usbhost_p2_fck;
}
omap->init_60m_fclk = clk_get(dev, "init_60m_fclk");
if (IS_ERR(omap->init_60m_fclk)) {
ret = PTR_ERR(omap->init_60m_fclk);
dev_err(dev, "init_60m_fclk failed error:%d\n", ret);
goto err_usbtll_p2_fck;
}
res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "uhh");
if (!res) {
dev_err(dev, "UHH EHCI get resource failed\n");
ret = -ENODEV;
goto err_init_60m_fclk;
}
omap->uhh_base = ioremap(res->start, resource_size(res));
if (!omap->uhh_base) {
dev_err(dev, "UHH ioremap failed\n");
ret = -ENOMEM;
goto err_init_60m_fclk;
}
res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "tll");
if (!res) {
dev_err(dev, "UHH EHCI get resource failed\n");
ret = -ENODEV;
goto err_tll;
}
omap->tll_base = ioremap(res->start, resource_size(res));
if (!omap->tll_base) {
dev_err(dev, "TLL ioremap failed\n");
ret = -ENOMEM;
goto err_tll;
}
platform_set_drvdata(pdev, omap);
ret = omap_usbhs_alloc_children(pdev);
if (ret) {
dev_err(dev, "omap_usbhs_alloc_children failed\n");
goto err_alloc;
}
goto end_probe;
err_alloc:
iounmap(omap->tll_base);
err_tll:
iounmap(omap->uhh_base);
err_init_60m_fclk:
clk_put(omap->init_60m_fclk);
err_usbtll_p2_fck:
clk_put(omap->usbtll_p2_fck);
err_usbhost_p2_fck:
clk_put(omap->usbhost_p2_fck);
err_usbtll_p1_fck:
clk_put(omap->usbtll_p1_fck);
err_usbhost_p1_fck:
clk_put(omap->usbhost_p1_fck);
err_xclk60mhsp2_ck:
clk_put(omap->xclk60mhsp2_ck);
err_utmi_p2_fck:
clk_put(omap->utmi_p2_fck);
err_xclk60mhsp1_ck:
clk_put(omap->xclk60mhsp1_ck);
err_utmi_p1_fck:
clk_put(omap->utmi_p1_fck);
err_usbtll_ick:
clk_put(omap->usbtll_ick);
err_usbtll_fck:
clk_put(omap->usbtll_fck);
err_usbhost_fs_fck:
clk_put(omap->usbhost_fs_fck);
err_usbhost_hs_fck:
clk_put(omap->usbhost_hs_fck);
err_usbhost_ick:
clk_put(omap->usbhost_ick);
err_end:
kfree(omap);
end_probe:
return ret;
}
/**
* usbhs_omap_remove - shutdown processing for UHH & TLL HCDs
* @pdev: USB Host Controller being removed
*
* Reverses the effect of usbhs_omap_probe().
*/
static int __devexit usbhs_omap_remove(struct platform_device *pdev)
{
struct usbhs_hcd_omap *omap = platform_get_drvdata(pdev);
if (omap->count != 0) {
dev_err(&pdev->dev,
"Either EHCI or OHCI is still using usbhs core\n");
return -EBUSY;
}
iounmap(omap->tll_base);
iounmap(omap->uhh_base);
clk_put(omap->init_60m_fclk);
clk_put(omap->usbtll_p2_fck);
clk_put(omap->usbhost_p2_fck);
clk_put(omap->usbtll_p1_fck);
clk_put(omap->usbhost_p1_fck);
clk_put(omap->xclk60mhsp2_ck);
clk_put(omap->utmi_p2_fck);
clk_put(omap->xclk60mhsp1_ck);
clk_put(omap->utmi_p1_fck);
clk_put(omap->usbtll_ick);
clk_put(omap->usbtll_fck);
clk_put(omap->usbhost_fs_fck);
clk_put(omap->usbhost_hs_fck);
clk_put(omap->usbhost_ick);
kfree(omap);
return 0;
}
static bool is_ohci_port(enum usbhs_omap_port_mode pmode)
{
switch (pmode) {
@ -689,30 +422,85 @@ static void usbhs_omap_tll_init(struct device *dev, u8 tll_channel_count)
}
}
static int usbhs_enable(struct device *dev)
static int usbhs_runtime_resume(struct device *dev)
{
struct usbhs_hcd_omap *omap = dev_get_drvdata(dev);
struct usbhs_omap_platform_data *pdata = &omap->platdata;
unsigned long flags = 0;
int ret = 0;
unsigned long timeout;
unsigned reg;
unsigned long flags;
dev_dbg(dev, "usbhs_runtime_resume\n");
dev_dbg(dev, "starting TI HSUSB Controller\n");
if (!pdata) {
dev_dbg(dev, "missing platform_data\n");
return -ENODEV;
}
spin_lock_irqsave(&omap->lock, flags);
if (omap->count > 0)
goto end_count;
clk_enable(omap->usbhost_ick);
clk_enable(omap->usbhost_hs_fck);
clk_enable(omap->usbhost_fs_fck);
clk_enable(omap->usbtll_fck);
clk_enable(omap->usbtll_ick);
if (omap->ehci_logic_fck && !IS_ERR(omap->ehci_logic_fck))
clk_enable(omap->ehci_logic_fck);
if (is_ehci_tll_mode(pdata->port_mode[0])) {
clk_enable(omap->usbhost_p1_fck);
clk_enable(omap->usbtll_p1_fck);
}
if (is_ehci_tll_mode(pdata->port_mode[1])) {
clk_enable(omap->usbhost_p2_fck);
clk_enable(omap->usbtll_p2_fck);
}
clk_enable(omap->utmi_p1_fck);
clk_enable(omap->utmi_p2_fck);
spin_unlock_irqrestore(&omap->lock, flags);
return 0;
}
static int usbhs_runtime_suspend(struct device *dev)
{
struct usbhs_hcd_omap *omap = dev_get_drvdata(dev);
struct usbhs_omap_platform_data *pdata = &omap->platdata;
unsigned long flags;
dev_dbg(dev, "usbhs_runtime_suspend\n");
if (!pdata) {
dev_dbg(dev, "missing platform_data\n");
return -ENODEV;
}
spin_lock_irqsave(&omap->lock, flags);
if (is_ehci_tll_mode(pdata->port_mode[0])) {
clk_disable(omap->usbhost_p1_fck);
clk_disable(omap->usbtll_p1_fck);
}
if (is_ehci_tll_mode(pdata->port_mode[1])) {
clk_disable(omap->usbhost_p2_fck);
clk_disable(omap->usbtll_p2_fck);
}
clk_disable(omap->utmi_p2_fck);
clk_disable(omap->utmi_p1_fck);
if (omap->ehci_logic_fck && !IS_ERR(omap->ehci_logic_fck))
clk_disable(omap->ehci_logic_fck);
spin_unlock_irqrestore(&omap->lock, flags);
return 0;
}
static void omap_usbhs_init(struct device *dev)
{
struct usbhs_hcd_omap *omap = dev_get_drvdata(dev);
struct usbhs_omap_platform_data *pdata = &omap->platdata;
unsigned long flags;
unsigned reg;
dev_dbg(dev, "starting TI HSUSB Controller\n");
pm_runtime_get_sync(dev);
spin_lock_irqsave(&omap->lock, flags);
if (pdata->ehci_data->phy_reset) {
if (gpio_is_valid(pdata->ehci_data->reset_gpio_port[0])) {
@ -736,50 +524,6 @@ static int usbhs_enable(struct device *dev)
omap->usbhs_rev = usbhs_read(omap->uhh_base, OMAP_UHH_REVISION);
dev_dbg(dev, "OMAP UHH_REVISION 0x%x\n", omap->usbhs_rev);
/* perform TLL soft reset, and wait until reset is complete */
usbhs_write(omap->tll_base, OMAP_USBTLL_SYSCONFIG,
OMAP_USBTLL_SYSCONFIG_SOFTRESET);
/* Wait for TLL reset to complete */
timeout = jiffies + msecs_to_jiffies(1000);
while (!(usbhs_read(omap->tll_base, OMAP_USBTLL_SYSSTATUS)
& OMAP_USBTLL_SYSSTATUS_RESETDONE)) {
cpu_relax();
if (time_after(jiffies, timeout)) {
dev_dbg(dev, "operation timed out\n");
ret = -EINVAL;
goto err_tll;
}
}
dev_dbg(dev, "TLL RESET DONE\n");
/* (1<<3) = no idle mode only for initial debugging */
usbhs_write(omap->tll_base, OMAP_USBTLL_SYSCONFIG,
OMAP_USBTLL_SYSCONFIG_ENAWAKEUP |
OMAP_USBTLL_SYSCONFIG_SIDLEMODE |
OMAP_USBTLL_SYSCONFIG_AUTOIDLE);
/* Put UHH in NoIdle/NoStandby mode */
reg = usbhs_read(omap->uhh_base, OMAP_UHH_SYSCONFIG);
if (is_omap_usbhs_rev1(omap)) {
reg |= (OMAP_UHH_SYSCONFIG_ENAWAKEUP
| OMAP_UHH_SYSCONFIG_SIDLEMODE
| OMAP_UHH_SYSCONFIG_CACTIVITY
| OMAP_UHH_SYSCONFIG_MIDLEMODE);
reg &= ~OMAP_UHH_SYSCONFIG_AUTOIDLE;
} else if (is_omap_usbhs_rev2(omap)) {
reg &= ~OMAP4_UHH_SYSCONFIG_IDLEMODE_CLEAR;
reg |= OMAP4_UHH_SYSCONFIG_NOIDLE;
reg &= ~OMAP4_UHH_SYSCONFIG_STDBYMODE_CLEAR;
reg |= OMAP4_UHH_SYSCONFIG_NOSTDBY;
}
usbhs_write(omap->uhh_base, OMAP_UHH_SYSCONFIG, reg);
reg = usbhs_read(omap->uhh_base, OMAP_UHH_HOSTCONFIG);
/* setup ULPI bypass and burst configurations */
reg |= (OMAP_UHH_HOSTCONFIG_INCR4_BURST_EN
@ -825,49 +569,6 @@ static int usbhs_enable(struct device *dev)
reg &= ~OMAP4_P1_MODE_CLEAR;
reg &= ~OMAP4_P2_MODE_CLEAR;
if (is_ehci_phy_mode(pdata->port_mode[0])) {
ret = clk_set_parent(omap->utmi_p1_fck,
omap->xclk60mhsp1_ck);
if (ret != 0) {
dev_err(dev, "xclk60mhsp1_ck set parent"
"failed error:%d\n", ret);
goto err_tll;
}
} else if (is_ehci_tll_mode(pdata->port_mode[0])) {
ret = clk_set_parent(omap->utmi_p1_fck,
omap->init_60m_fclk);
if (ret != 0) {
dev_err(dev, "init_60m_fclk set parent"
"failed error:%d\n", ret);
goto err_tll;
}
clk_enable(omap->usbhost_p1_fck);
clk_enable(omap->usbtll_p1_fck);
}
if (is_ehci_phy_mode(pdata->port_mode[1])) {
ret = clk_set_parent(omap->utmi_p2_fck,
omap->xclk60mhsp2_ck);
if (ret != 0) {
dev_err(dev, "xclk60mhsp1_ck set parent"
"failed error:%d\n", ret);
goto err_tll;
}
} else if (is_ehci_tll_mode(pdata->port_mode[1])) {
ret = clk_set_parent(omap->utmi_p2_fck,
omap->init_60m_fclk);
if (ret != 0) {
dev_err(dev, "init_60m_fclk set parent"
"failed error:%d\n", ret);
goto err_tll;
}
clk_enable(omap->usbhost_p2_fck);
clk_enable(omap->usbtll_p2_fck);
}
clk_enable(omap->utmi_p1_fck);
clk_enable(omap->utmi_p2_fck);
if (is_ehci_tll_mode(pdata->port_mode[0]) ||
(is_ohci_port(pdata->port_mode[0])))
reg |= OMAP4_P1_MODE_TLL;
@ -913,106 +614,14 @@ static int usbhs_enable(struct device *dev)
(pdata->ehci_data->reset_gpio_port[1], 1);
}
end_count:
omap->count++;
spin_unlock_irqrestore(&omap->lock, flags);
return 0;
err_tll:
if (pdata->ehci_data->phy_reset) {
if (gpio_is_valid(pdata->ehci_data->reset_gpio_port[0]))
gpio_free(pdata->ehci_data->reset_gpio_port[0]);
if (gpio_is_valid(pdata->ehci_data->reset_gpio_port[1]))
gpio_free(pdata->ehci_data->reset_gpio_port[1]);
}
clk_disable(omap->usbtll_ick);
clk_disable(omap->usbtll_fck);
clk_disable(omap->usbhost_fs_fck);
clk_disable(omap->usbhost_hs_fck);
clk_disable(omap->usbhost_ick);
spin_unlock_irqrestore(&omap->lock, flags);
return ret;
pm_runtime_put_sync(dev);
}
static void usbhs_disable(struct device *dev)
static void omap_usbhs_deinit(struct device *dev)
{
struct usbhs_hcd_omap *omap = dev_get_drvdata(dev);
struct usbhs_omap_platform_data *pdata = &omap->platdata;
unsigned long flags = 0;
unsigned long timeout;
dev_dbg(dev, "stopping TI HSUSB Controller\n");
spin_lock_irqsave(&omap->lock, flags);
if (omap->count == 0)
goto end_disble;
omap->count--;
if (omap->count != 0)
goto end_disble;
/* Reset OMAP modules for insmod/rmmod to work */
usbhs_write(omap->uhh_base, OMAP_UHH_SYSCONFIG,
is_omap_usbhs_rev2(omap) ?
OMAP4_UHH_SYSCONFIG_SOFTRESET :
OMAP_UHH_SYSCONFIG_SOFTRESET);
timeout = jiffies + msecs_to_jiffies(100);
while (!(usbhs_read(omap->uhh_base, OMAP_UHH_SYSSTATUS)
& (1 << 0))) {
cpu_relax();
if (time_after(jiffies, timeout))
dev_dbg(dev, "operation timed out\n");
}
while (!(usbhs_read(omap->uhh_base, OMAP_UHH_SYSSTATUS)
& (1 << 1))) {
cpu_relax();
if (time_after(jiffies, timeout))
dev_dbg(dev, "operation timed out\n");
}
while (!(usbhs_read(omap->uhh_base, OMAP_UHH_SYSSTATUS)
& (1 << 2))) {
cpu_relax();
if (time_after(jiffies, timeout))
dev_dbg(dev, "operation timed out\n");
}
usbhs_write(omap->tll_base, OMAP_USBTLL_SYSCONFIG, (1 << 1));
while (!(usbhs_read(omap->tll_base, OMAP_USBTLL_SYSSTATUS)
& (1 << 0))) {
cpu_relax();
if (time_after(jiffies, timeout))
dev_dbg(dev, "operation timed out\n");
}
if (is_omap_usbhs_rev2(omap)) {
if (is_ehci_tll_mode(pdata->port_mode[0]))
clk_disable(omap->usbtll_p1_fck);
if (is_ehci_tll_mode(pdata->port_mode[1]))
clk_disable(omap->usbtll_p2_fck);
clk_disable(omap->utmi_p2_fck);
clk_disable(omap->utmi_p1_fck);
}
clk_disable(omap->usbtll_ick);
clk_disable(omap->usbtll_fck);
clk_disable(omap->usbhost_fs_fck);
clk_disable(omap->usbhost_hs_fck);
clk_disable(omap->usbhost_ick);
/* The gpio_free migh sleep; so unlock the spinlock */
spin_unlock_irqrestore(&omap->lock, flags);
if (pdata->ehci_data->phy_reset) {
if (gpio_is_valid(pdata->ehci_data->reset_gpio_port[0]))
@ -1021,28 +630,272 @@ static void usbhs_disable(struct device *dev)
if (gpio_is_valid(pdata->ehci_data->reset_gpio_port[1]))
gpio_free(pdata->ehci_data->reset_gpio_port[1]);
}
return;
end_disble:
spin_unlock_irqrestore(&omap->lock, flags);
}
int omap_usbhs_enable(struct device *dev)
/**
* usbhs_omap_probe - initialize TI-based HCDs
*
* Allocates basic resources for this USB host controller.
*/
static int __devinit usbhs_omap_probe(struct platform_device *pdev)
{
return usbhs_enable(dev->parent);
}
EXPORT_SYMBOL_GPL(omap_usbhs_enable);
struct device *dev = &pdev->dev;
struct usbhs_omap_platform_data *pdata = dev->platform_data;
struct usbhs_hcd_omap *omap;
struct resource *res;
int ret = 0;
int i;
void omap_usbhs_disable(struct device *dev)
{
usbhs_disable(dev->parent);
if (!pdata) {
dev_err(dev, "Missing platform data\n");
ret = -ENOMEM;
goto end_probe;
}
omap = kzalloc(sizeof(*omap), GFP_KERNEL);
if (!omap) {
dev_err(dev, "Memory allocation failed\n");
ret = -ENOMEM;
goto end_probe;
}
spin_lock_init(&omap->lock);
for (i = 0; i < OMAP3_HS_USB_PORTS; i++)
omap->platdata.port_mode[i] = pdata->port_mode[i];
omap->platdata.ehci_data = pdata->ehci_data;
omap->platdata.ohci_data = pdata->ohci_data;
pm_runtime_enable(dev);
for (i = 0; i < OMAP3_HS_USB_PORTS; i++)
if (is_ehci_phy_mode(i) || is_ehci_tll_mode(i) ||
is_ehci_hsic_mode(i)) {
omap->ehci_logic_fck = clk_get(dev, "ehci_logic_fck");
if (IS_ERR(omap->ehci_logic_fck)) {
ret = PTR_ERR(omap->ehci_logic_fck);
dev_warn(dev, "ehci_logic_fck failed:%d\n",
ret);
}
break;
}
omap->utmi_p1_fck = clk_get(dev, "utmi_p1_gfclk");
if (IS_ERR(omap->utmi_p1_fck)) {
ret = PTR_ERR(omap->utmi_p1_fck);
dev_err(dev, "utmi_p1_gfclk failed error:%d\n", ret);
goto err_end;
}
omap->xclk60mhsp1_ck = clk_get(dev, "xclk60mhsp1_ck");
if (IS_ERR(omap->xclk60mhsp1_ck)) {
ret = PTR_ERR(omap->xclk60mhsp1_ck);
dev_err(dev, "xclk60mhsp1_ck failed error:%d\n", ret);
goto err_utmi_p1_fck;
}
omap->utmi_p2_fck = clk_get(dev, "utmi_p2_gfclk");
if (IS_ERR(omap->utmi_p2_fck)) {
ret = PTR_ERR(omap->utmi_p2_fck);
dev_err(dev, "utmi_p2_gfclk failed error:%d\n", ret);
goto err_xclk60mhsp1_ck;
}
omap->xclk60mhsp2_ck = clk_get(dev, "xclk60mhsp2_ck");
if (IS_ERR(omap->xclk60mhsp2_ck)) {
ret = PTR_ERR(omap->xclk60mhsp2_ck);
dev_err(dev, "xclk60mhsp2_ck failed error:%d\n", ret);
goto err_utmi_p2_fck;
}
omap->usbhost_p1_fck = clk_get(dev, "usb_host_hs_utmi_p1_clk");
if (IS_ERR(omap->usbhost_p1_fck)) {
ret = PTR_ERR(omap->usbhost_p1_fck);
dev_err(dev, "usbhost_p1_fck failed error:%d\n", ret);
goto err_xclk60mhsp2_ck;
}
omap->usbtll_p1_fck = clk_get(dev, "usb_tll_hs_usb_ch0_clk");
if (IS_ERR(omap->usbtll_p1_fck)) {
ret = PTR_ERR(omap->usbtll_p1_fck);
dev_err(dev, "usbtll_p1_fck failed error:%d\n", ret);
goto err_usbhost_p1_fck;
}
omap->usbhost_p2_fck = clk_get(dev, "usb_host_hs_utmi_p2_clk");
if (IS_ERR(omap->usbhost_p2_fck)) {
ret = PTR_ERR(omap->usbhost_p2_fck);
dev_err(dev, "usbhost_p2_fck failed error:%d\n", ret);
goto err_usbtll_p1_fck;
}
omap->usbtll_p2_fck = clk_get(dev, "usb_tll_hs_usb_ch1_clk");
if (IS_ERR(omap->usbtll_p2_fck)) {
ret = PTR_ERR(omap->usbtll_p2_fck);
dev_err(dev, "usbtll_p2_fck failed error:%d\n", ret);
goto err_usbhost_p2_fck;
}
omap->init_60m_fclk = clk_get(dev, "init_60m_fclk");
if (IS_ERR(omap->init_60m_fclk)) {
ret = PTR_ERR(omap->init_60m_fclk);
dev_err(dev, "init_60m_fclk failed error:%d\n", ret);
goto err_usbtll_p2_fck;
}
if (is_ehci_phy_mode(pdata->port_mode[0])) {
/* for OMAP3 , the clk set paretn fails */
ret = clk_set_parent(omap->utmi_p1_fck,
omap->xclk60mhsp1_ck);
if (ret != 0)
dev_err(dev, "xclk60mhsp1_ck set parent"
"failed error:%d\n", ret);
} else if (is_ehci_tll_mode(pdata->port_mode[0])) {
ret = clk_set_parent(omap->utmi_p1_fck,
omap->init_60m_fclk);
if (ret != 0)
dev_err(dev, "init_60m_fclk set parent"
"failed error:%d\n", ret);
}
if (is_ehci_phy_mode(pdata->port_mode[1])) {
ret = clk_set_parent(omap->utmi_p2_fck,
omap->xclk60mhsp2_ck);
if (ret != 0)
dev_err(dev, "xclk60mhsp2_ck set parent"
"failed error:%d\n", ret);
} else if (is_ehci_tll_mode(pdata->port_mode[1])) {
ret = clk_set_parent(omap->utmi_p2_fck,
omap->init_60m_fclk);
if (ret != 0)
dev_err(dev, "init_60m_fclk set parent"
"failed error:%d\n", ret);
}
res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "uhh");
if (!res) {
dev_err(dev, "UHH EHCI get resource failed\n");
ret = -ENODEV;
goto err_init_60m_fclk;
}
omap->uhh_base = ioremap(res->start, resource_size(res));
if (!omap->uhh_base) {
dev_err(dev, "UHH ioremap failed\n");
ret = -ENOMEM;
goto err_init_60m_fclk;
}
res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "tll");
if (!res) {
dev_err(dev, "UHH EHCI get resource failed\n");
ret = -ENODEV;
goto err_tll;
}
omap->tll_base = ioremap(res->start, resource_size(res));
if (!omap->tll_base) {
dev_err(dev, "TLL ioremap failed\n");
ret = -ENOMEM;
goto err_tll;
}
platform_set_drvdata(pdev, omap);
ret = omap_usbhs_alloc_children(pdev);
if (ret) {
dev_err(dev, "omap_usbhs_alloc_children failed\n");
goto err_alloc;
}
omap_usbhs_init(dev);
goto end_probe;
err_alloc:
iounmap(omap->tll_base);
err_tll:
iounmap(omap->uhh_base);
err_init_60m_fclk:
clk_put(omap->init_60m_fclk);
err_usbtll_p2_fck:
clk_put(omap->usbtll_p2_fck);
err_usbhost_p2_fck:
clk_put(omap->usbhost_p2_fck);
err_usbtll_p1_fck:
clk_put(omap->usbtll_p1_fck);
err_usbhost_p1_fck:
clk_put(omap->usbhost_p1_fck);
err_xclk60mhsp2_ck:
clk_put(omap->xclk60mhsp2_ck);
err_utmi_p2_fck:
clk_put(omap->utmi_p2_fck);
err_xclk60mhsp1_ck:
clk_put(omap->xclk60mhsp1_ck);
err_utmi_p1_fck:
clk_put(omap->utmi_p1_fck);
err_end:
clk_put(omap->ehci_logic_fck);
pm_runtime_disable(dev);
kfree(omap);
end_probe:
return ret;
}
EXPORT_SYMBOL_GPL(omap_usbhs_disable);
/**
* usbhs_omap_remove - shutdown processing for UHH & TLL HCDs
* @pdev: USB Host Controller being removed
*
* Reverses the effect of usbhs_omap_probe().
*/
static int __devexit usbhs_omap_remove(struct platform_device *pdev)
{
struct usbhs_hcd_omap *omap = platform_get_drvdata(pdev);
omap_usbhs_deinit(&pdev->dev);
iounmap(omap->tll_base);
iounmap(omap->uhh_base);
clk_put(omap->init_60m_fclk);
clk_put(omap->usbtll_p2_fck);
clk_put(omap->usbhost_p2_fck);
clk_put(omap->usbtll_p1_fck);
clk_put(omap->usbhost_p1_fck);
clk_put(omap->xclk60mhsp2_ck);
clk_put(omap->utmi_p2_fck);
clk_put(omap->xclk60mhsp1_ck);
clk_put(omap->utmi_p1_fck);
clk_put(omap->ehci_logic_fck);
pm_runtime_disable(&pdev->dev);
kfree(omap);
return 0;
}
static const struct dev_pm_ops usbhsomap_dev_pm_ops = {
.runtime_suspend = usbhs_runtime_suspend,
.runtime_resume = usbhs_runtime_resume,
};
static struct platform_driver usbhs_omap_driver = {
.driver = {
.name = (char *)usbhs_driver_name,
.owner = THIS_MODULE,
.pm = &usbhsomap_dev_pm_ops,
},
.remove = __exit_p(usbhs_omap_remove),
};

17
drivers/usb/host/ehci-omap.c
View file

@ -41,6 +41,7 @@
#include <linux/usb/ulpi.h>
#include <plat/usb.h>
#include <linux/regulator/consumer.h>
#include <linux/pm_runtime.h>
/* EHCI Register Set */
#define EHCI_INSNREG04 (0xA0)
@ -190,11 +191,8 @@ static int ehci_hcd_omap_probe(struct platform_device *pdev)
}
}
ret = omap_usbhs_enable(dev);
if (ret) {
dev_err(dev, "failed to start usbhs with err %d\n", ret);
goto err_enable;
}
pm_runtime_enable(dev);
pm_runtime_get_sync(dev);
/*
* An undocumented "feature" in the OMAP3 EHCI controller,
@ -240,11 +238,8 @@ static int ehci_hcd_omap_probe(struct platform_device *pdev)
return 0;
err_add_hcd:
omap_usbhs_disable(dev);
err_enable:
disable_put_regulator(pdata);
usb_put_hcd(hcd);
pm_runtime_put_sync(dev);
err_io:
iounmap(regs);
@ -266,10 +261,12 @@ static int ehci_hcd_omap_remove(struct platform_device *pdev)
struct usb_hcd *hcd = dev_get_drvdata(dev);
usb_remove_hcd(hcd);
omap_usbhs_disable(dev);
disable_put_regulator(dev->platform_data);
iounmap(hcd->regs);
usb_put_hcd(hcd);
pm_runtime_put_sync(dev);
pm_runtime_disable(dev);
return 0;
}

18
drivers/usb/host/ohci-omap3.c
View file

@ -31,6 +31,7 @@
#include <linux/platform_device.h>
#include <plat/usb.h>
#include <linux/pm_runtime.h>
/*-------------------------------------------------------------------------*/
@ -134,7 +135,7 @@ static int __devinit ohci_hcd_omap3_probe(struct platform_device *pdev)
int irq;
if (usb_disabled())
goto err_end;
return -ENODEV;
if (!dev->parent) {
dev_err(dev, "Missing parent device\n");
@ -172,11 +173,8 @@ static int __devinit ohci_hcd_omap3_probe(struct platform_device *pdev)
hcd->rsrc_len = resource_size(res);
hcd->regs = regs;
ret = omap_usbhs_enable(dev);
if (ret) {
dev_dbg(dev, "failed to start ohci\n");
goto err_end;
}
pm_runtime_enable(dev);
pm_runtime_get_sync(dev);
ohci_hcd_init(hcd_to_ohci(hcd));
@ -189,9 +187,7 @@ static int __devinit ohci_hcd_omap3_probe(struct platform_device *pdev)
return 0;
err_add_hcd:
omap_usbhs_disable(dev);
err_end:
pm_runtime_put_sync(dev);
usb_put_hcd(hcd);
err_io:
@ -220,9 +216,9 @@ static int __devexit ohci_hcd_omap3_remove(struct platform_device *pdev)
iounmap(hcd->regs);
usb_remove_hcd(hcd);
omap_usbhs_disable(dev);
pm_runtime_put_sync(dev);
pm_runtime_disable(dev);
usb_put_hcd(hcd);
return 0;
}