exynos: usb: Switch USB VBUS GPIOs to be device tree configured

[karo-tx-uboot.git] / drivers / usb / host / xhci-exynos5.c

diff --git a/drivers/usb/host/xhci-exynos5.c b/drivers/usb/host/xhci-exynos5.c
index eb0ef6c57d23ba35289fef903ad9a317ac8005d0..1146d101de40901d5789c342c3716a2f2a1b7aaf 100644 (file)
--- a/drivers/usb/host/xhci-exynos5.c
+++ b/drivers/usb/host/xhci-exynos5.c
@@ -22,6 +22,7 @@
 #include <asm/arch/cpu.h>
 #include <asm/arch/power.h>
 #include <asm/arch/xhci-exynos.h>
+#include <asm/gpio.h>
 #include <asm-generic/errno.h>
 #include <linux/compat.h>
 #include <linux/usb/dwc3.h>
@@ -39,6 +40,7 @@ struct exynos_xhci {
        struct exynos_usb3_phy *usb3_phy;
        struct xhci_hccr *hcd;
        struct dwc3 *dwc3_reg;
+       struct fdt_gpio_state vbus_gpio;
 };
 
 static struct exynos_xhci exynos;
@@ -66,6 +68,9 @@ static int exynos_usb3_parse_dt(const void *blob, struct exynos_xhci *exynos)
        }
        exynos->hcd = (struct xhci_hccr *)addr;
 
+       /* Vbus gpio */
+       fdtdec_decode_gpio(blob, node, "samsung,vbus-gpio", &exynos->vbus_gpio);
+
        depth = 0;
        node = fdtdec_next_compatible_subnode(blob, node,
                                COMPAT_SAMSUNG_EXYNOS5_USB3_PHY, &depth);
@@ -291,6 +296,12 @@ int xhci_hcd_init(int index, struct xhci_hccr **hccr, struct xhci_hcor **hcor)
 
        ctx->dwc3_reg = (struct dwc3 *)((char *)(ctx->hcd) + DWC3_REG_OFFSET);
 
+#ifdef CONFIG_OF_CONTROL
+       /* setup the Vbus gpio here */
+       if (!fdtdec_setup_gpio(&ctx->vbus_gpio))
+               gpio_direction_output(ctx->vbus_gpio.gpio, 1);
+#endif
+
        ret = exynos_xhci_core_init(ctx);
        if (ret) {
                puts("XHCI: failed to initialize controller\n");