Selecting CONFIG_USB_EHCI_TEGRA requires CONFIG_USB_ULPI_VIEWPORT.
Otherwise the build can break with:
drivers/usb/phy/phy-tegra-usb.c: In function 'ulpi_open':
drivers/usb/phy/phy-tegra-usb.c:689:31: error: 'ulpi_viewport_access_ops' undeclared (first use in this function)
drivers/usb/phy/phy-tegra-usb.c:689:31: note: each undeclared identifier is reported only once for each function it appears in
if CONFIG_USB_ULPI_VIEWPORT is not manually selected.
Fix by forcing CONFIG_USB_ULPI_VIEWPORT to be selected when
CONFIG_USB_EHCI_TEGRA is selected. Then, since CONFIG_USB_ULPI_VIEWPORT
requires CONFIG_USB_ULPI to be selected, add that too.
N.B.: ULPI is deprecated on this controller for T114, so it might make
sense to split the ULPI support code into a separate file, compiled only
if a ULPI PHY is selected.
Signed-off-by: Paul Walmsley <pwalmsley@xxxxxxxxxx>
Cc: <stable@xxxxxxxxxxxxxxx>
---
Observed while building the stable kernels v3.11.[123] with a T114-only
Kconfig.
drivers/usb/host/Kconfig | 2 ++
1 file changed, 2 insertions(+)
diff --git a/drivers/usb/host/Kconfig b/drivers/usb/host/Kconfig
index 4263d01..81b9d34 100644
--- a/drivers/usb/host/Kconfig
+++ b/drivers/usb/host/Kconfig
@@ -202,6 +202,8 @@ config USB_EHCI_TEGRA
depends on ARCH_TEGRA
select USB_EHCI_ROOT_HUB_TT
select USB_PHY
+ select USB_ULPI
+ select USB_ULPI_VIEWPORT
help
This driver enables support for the internal USB Host Controllers
found in NVIDIA Tegra SoCs. The controllers are EHCI compliant.
--
1.8.1.5
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