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| author | Arnd Bergmann <arnd@arndb.de> | 2012-05-02 17:20:03 +0200 |
|---|---|---|
| committer | Arnd Bergmann <arnd@arndb.de> | 2012-05-02 17:21:21 +0200 |
| commit | 87c35c56f4beed9e43bd41427643215655a31c3d (patch) | |
| tree | a4a29370bbb16ecf1864751def0a9b7ad0629476 /drivers/usb/host/ehci-omap.c | |
| parent | d1ef5bd711b6b01e6a73cf186245d19939882706 (diff) | |
| parent | ee9581d7adaeb2d04b01e3567e2355ceb5f43ad1 (diff) | |
| download | blackbird-op-linux-87c35c56f4beed9e43bd41427643215655a31c3d.tar.gz blackbird-op-linux-87c35c56f4beed9e43bd41427643215655a31c3d.zip | |
Merge branch 'ux500-u9540-for-arm-soc' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-stericsson into next/newsoc
From: Linus Walleij <linus.walleij@linaro.org>:
Core support for the U9540 after finalized review
* 'ux500-u9540-for-arm-soc' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-stericsson: (2 commits)
ARM: ux500: ioremap differences for DB9540
ARM: ux500: core U9540 support
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Diffstat (limited to 'drivers/usb/host/ehci-omap.c')
| -rw-r--r-- | drivers/usb/host/ehci-omap.c | 39 |
1 files changed, 37 insertions, 2 deletions
diff --git a/drivers/usb/host/ehci-omap.c b/drivers/usb/host/ehci-omap.c index bba9850f32f0..5c78f9e71466 100644 --- a/drivers/usb/host/ehci-omap.c +++ b/drivers/usb/host/ehci-omap.c @@ -42,6 +42,7 @@ #include <plat/usb.h> #include <linux/regulator/consumer.h> #include <linux/pm_runtime.h> +#include <linux/gpio.h> /* EHCI Register Set */ #define EHCI_INSNREG04 (0xA0) @@ -191,6 +192,19 @@ static int ehci_hcd_omap_probe(struct platform_device *pdev) } } + if (pdata->phy_reset) { + if (gpio_is_valid(pdata->reset_gpio_port[0])) + gpio_request_one(pdata->reset_gpio_port[0], + GPIOF_OUT_INIT_LOW, "USB1 PHY reset"); + + if (gpio_is_valid(pdata->reset_gpio_port[1])) + gpio_request_one(pdata->reset_gpio_port[1], + GPIOF_OUT_INIT_LOW, "USB2 PHY reset"); + + /* Hold the PHY in RESET for enough time till DIR is high */ + udelay(10); + } + pm_runtime_enable(dev); pm_runtime_get_sync(dev); @@ -237,6 +251,19 @@ static int ehci_hcd_omap_probe(struct platform_device *pdev) /* root ports should always stay powered */ ehci_port_power(omap_ehci, 1); + if (pdata->phy_reset) { + /* Hold the PHY in RESET for enough time till + * PHY is settled and ready + */ + udelay(10); + + if (gpio_is_valid(pdata->reset_gpio_port[0])) + gpio_set_value(pdata->reset_gpio_port[0], 1); + + if (gpio_is_valid(pdata->reset_gpio_port[1])) + gpio_set_value(pdata->reset_gpio_port[1], 1); + } + return 0; err_add_hcd: @@ -259,8 +286,9 @@ err_io: */ static int ehci_hcd_omap_remove(struct platform_device *pdev) { - struct device *dev = &pdev->dev; - struct usb_hcd *hcd = dev_get_drvdata(dev); + struct device *dev = &pdev->dev; + struct usb_hcd *hcd = dev_get_drvdata(dev); + struct ehci_hcd_omap_platform_data *pdata = dev->platform_data; usb_remove_hcd(hcd); disable_put_regulator(dev->platform_data); @@ -269,6 +297,13 @@ static int ehci_hcd_omap_remove(struct platform_device *pdev) pm_runtime_put_sync(dev); pm_runtime_disable(dev); + if (pdata->phy_reset) { + if (gpio_is_valid(pdata->reset_gpio_port[0])) + gpio_free(pdata->reset_gpio_port[0]); + + if (gpio_is_valid(pdata->reset_gpio_port[1])) + gpio_free(pdata->reset_gpio_port[1]); + } return 0; } |
