ARM: tegra: add USB ULPI PHY reset GPIO to device tree
authorStephen Warren <swarren@nvidia.com>
Thu, 12 Apr 2012 21:46:49 +0000 (15:46 -0600)
committerStephen Warren <swarren@nvidia.com>
Wed, 25 Apr 2012 21:22:09 +0000 (15:22 -0600)
commitaa607ebf93a5fc26275a575781399df971dd1b91
tree93dcb6f1af5f6d7e64663a4ce9e45e889866309e
parent60d148b9f838b718e4808061ee6d5833de77fd9c
ARM: tegra: add USB ULPI PHY reset GPIO to device tree

ULPI PHYs have a reset signal, and different boards use a different GPIO
for this task. Add a property to device tree to represent this.

I'm not sure if adding this property to the EHCI controller node is
entirely correct; perhaps eventually we should have explicit separate
nodes for the various PHYs. However, we don't have that right now, so this
binding seems like a reasonable choice.

Cc: <devicetree-discuss@lists.ozlabs.org>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: <linux-usb@vger.kernel.org>
Signed-off-by: Stephen Warren <swarren@nvidia.com>
Documentation/devicetree/bindings/usb/tegra-usb.txt
arch/arm/boot/dts/tegra-harmony.dts
arch/arm/boot/dts/tegra-paz00.dts
arch/arm/boot/dts/tegra-seaboard.dts
arch/arm/boot/dts/tegra-trimslice.dts
arch/arm/boot/dts/tegra-ventana.dts
arch/arm/mach-tegra/include/mach/usb_phy.h
arch/arm/mach-tegra/usb_phy.c
drivers/usb/host/ehci-tegra.c