From: Venu Byravarasu Date: Thu, 13 Dec 2012 20:59:07 +0000 (+0000) Subject: ARM: tegra: Add new DT property to USB node. X-Git-Tag: firefly_0821_release~3680^2~1071^2~14^2~10 X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=b4e074788a4a461431e25906358c6e62cb8daf9d;p=firefly-linux-kernel-4.4.55.git ARM: tegra: Add new DT property to USB node. As Tegra USB host driver is using instance number for resetting PORT0 twice, adding a new DT property for handling this. Signed-off-by: Venu Byravarasu Acked-by: Alan Stern Signed-off-by: Stephen Warren --- diff --git a/Documentation/devicetree/bindings/usb/nvidia,tegra20-ehci.txt b/Documentation/devicetree/bindings/usb/nvidia,tegra20-ehci.txt index e9b005dc7625..6ea765ad3dad 100644 --- a/Documentation/devicetree/bindings/usb/nvidia,tegra20-ehci.txt +++ b/Documentation/devicetree/bindings/usb/nvidia,tegra20-ehci.txt @@ -27,3 +27,5 @@ Optional properties: registers are accessed through the APB_MISC base address instead of the USB controller. Since this is a legacy issue it probably does not warrant a compatible string of its own. + - nvidia,needs-double-reset : boolean is to be set for some of the Tegra2 + USB ports, which need reset twice due to hardware issues. diff --git a/arch/arm/boot/dts/tegra20.dtsi b/arch/arm/boot/dts/tegra20.dtsi index d665a67d4358..88cf8332e3f7 100644 --- a/arch/arm/boot/dts/tegra20.dtsi +++ b/arch/arm/boot/dts/tegra20.dtsi @@ -407,6 +407,7 @@ phy_type = "utmi"; nvidia,has-legacy-mode; clocks = <&tegra_car 22>; + nvidia,needs-double-reset; status = "disabled"; };