Merge tag 'drivers' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

[karo-tx-linux.git] / arch / arm / mach-tegra / usb_phy.c

diff --git a/arch/arm/mach-tegra/usb_phy.c b/arch/arm/mach-tegra/usb_phy.c
index d71d2fed67216227f1958dfa187be7e7fa5a57ad..54e353c8e3042f61e7c487c16f1cd29d22758fb6 100644 (file)
--- a/arch/arm/mach-tegra/usb_phy.c
+++ b/arch/arm/mach-tegra/usb_phy.c
@@ -26,6 +26,7 @@
 #include <linux/platform_device.h>
 #include <linux/io.h>
 #include <linux/gpio.h>
+#include <linux/of_gpio.h>
 #include <linux/usb/otg.h>
 #include <linux/usb/ulpi.h>
 #include <asm/mach-types.h>
@@ -654,8 +655,8 @@ static void ulpi_phy_power_off(struct tegra_usb_phy *phy)
        clk_disable(phy->clk);
 }
 
-struct tegra_usb_phy *tegra_usb_phy_open(int instance, void __iomem *regs,
-                       void *config, enum tegra_usb_phy_mode phy_mode)
+struct tegra_usb_phy *tegra_usb_phy_open(struct device *dev, int instance,
+       void __iomem *regs, void *config, enum tegra_usb_phy_mode phy_mode)
 {
        struct tegra_usb_phy *phy;
        struct tegra_ulpi_config *ulpi_config;
@@ -711,6 +712,16 @@ struct tegra_usb_phy *tegra_usb_phy_open(int instance, void __iomem *regs,
                        err = -ENXIO;
                        goto err1;
                }
+               if (!gpio_is_valid(ulpi_config->reset_gpio))
+                       ulpi_config->reset_gpio =
+                               of_get_named_gpio(dev->of_node,
+                                                 "nvidia,phy-reset-gpio", 0);
+               if (!gpio_is_valid(ulpi_config->reset_gpio)) {
+                       pr_err("%s: invalid reset gpio: %d\n", __func__,
+                              ulpi_config->reset_gpio);
+                       err = -EINVAL;
+                       goto err1;
+               }
                gpio_request(ulpi_config->reset_gpio, "ulpi_phy_reset_b");
                gpio_direction_output(ulpi_config->reset_gpio, 0);
                phy->ulpi = otg_ulpi_create(&ulpi_viewport_access_ops, 0);