[PATCH 3.13 016/140] usb: dwc3: fix the glue drivers using the nop phy

Greg Kroah-Hartman
2014-02-04T21:55:03Z

From: Heikki Krogerus <heikki.krogerus@linux.intel.com>

commit 13518673f1419f2667985a6fca4543e44143408b upstream.

The reset_gpio member of the usb_phy_gen_xceiv_platform_data
structure needs the have negative value or phy-generic's
probe will fail unless DT is used. 0 is a valid gpio number.

This fixes an issue where phy-generic fails to probe with
message: "usb_phy_gen_xceiv.0: Error requesting RESET GPIO 0".

Signed-off-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
drivers/usb/dwc3/dwc3-exynos.c | 1 +
drivers/usb/dwc3/dwc3-pci.c | 1 +
2 files changed, 2 insertions(+)

--- a/drivers/usb/dwc3/dwc3-exynos.c
+++ b/drivers/usb/dwc3/dwc3-exynos.c
@@ -50,6 +50,7 @@ static int dwc3_exynos_register_phys(str

exynos->usb2_phy = pdev;
pdata.type = USB_PHY_TYPE_USB2;
+ pdata.gpio_reset = -1;

ret = platform_device_add_data(exynos->usb2_phy, &pdata, sizeof(pdata));
if (ret)
--- a/drivers/usb/dwc3/dwc3-pci.c
+++ b/drivers/usb/dwc3/dwc3-pci.c
@@ -52,6 +52,7 @@ static int dwc3_pci_register_phys(struct

glue->usb2_phy = pdev;
pdata.type = USB_PHY_TYPE_USB2;
+ pdata.gpio_reset = -1;

ret = platform_device_add_data(glue->usb2_phy, &pdata, sizeof(pdata));
if (ret)