From 01ad8063a5db9ac8320f197577a34b423ba64eca Mon Sep 17 00:00:00 2001 From: Stephen Warren Date: Wed, 25 Jul 2012 14:02:44 -0600 Subject: [PATCH] ARM: dt: tegra trimslice: add vbus-gpio property On TrimSlice, Tegra's USB1 port may be routed to either an external micro USB port, or an internal USB->SATA bridge for SSD or HDD. This muxing is controlled by a GPIO. Whilst not strictly a VBUS GPIO, the TrimSlice board files caused this GPIO to be set appropriately to enable the SATA bridge by passing it as the VBUS GPIO to the USB driver. Echo this same configuration in device tree to enable the SATA bridge. An alternative might be to implement a full USB bus mux driver. However, that seems over-complex right now. Cc: # v3.5 (file is named tegra-trimslice.dts there) Signed-off-by: Stephen Warren Signed-off-by: Arnd Bergmann --- arch/arm/boot/dts/tegra20-trimslice.dts | 1 + 1 file changed, 1 insertion(+) diff --git a/arch/arm/boot/dts/tegra20-trimslice.dts b/arch/arm/boot/dts/tegra20-trimslice.dts index 9de5636..25d2d8c 100644 --- a/arch/arm/boot/dts/tegra20-trimslice.dts +++ b/arch/arm/boot/dts/tegra20-trimslice.dts @@ -276,6 +276,7 @@ usb@c5000000 { status = "okay"; + nvidia,vbus-gpio = <&gpio 170 0>; /* gpio PV2 */ }; usb@c5004000 { -- 2.7.4