The exynos5420-peach-pit has a SMSC USB3503 connected in hardware only mode like a PHY. Enable support for it, and add necessary 'reset-gpio' for it. This is in correspondance to similar patch by Mark Brown 7c1b0ec ARM: dts: Enable USB hub on Arndale Signed-off-by: Vivek Gautam <gautam.vivek@xxxxxxxxxxx> --- Based on 'for-next' branch of kgene's linux-samsung tree with following patch: [PATCH v4 2/2] ARM: dts: Add peach-pit board support http://www.mail-archive.com/linux-samsung-soc@xxxxxxxxxxxxxxx/msg29950.html arch/arm/boot/dts/exynos5420-peach-pit.dts | 14 ++++++++++++++ arch/arm/boot/dts/exynos5420-pinctrl.dtsi | 7 +++++++ 2 files changed, 21 insertions(+) diff --git a/arch/arm/boot/dts/exynos5420-peach-pit.dts b/arch/arm/boot/dts/exynos5420-peach-pit.dts index fae33dd..24c1e87 100644 --- a/arch/arm/boot/dts/exynos5420-peach-pit.dts +++ b/arch/arm/boot/dts/exynos5420-peach-pit.dts @@ -58,6 +58,20 @@ pinctrl-0 = <&pwm0_out>; pinctrl-names = "default"; }; + + usb_hub_bus { + compatible = "simple-bus"; + #address-cells = <1>; + #size-cells = <0>; + + // SMSC USB3503 connected in hardware only mode as a PHY + usb_hub { + compatible = "smsc,usb3503a"; + reset-gpios = <&gpx2 4 1>; + pinctrl-0 = <&usb_hub_reset>; + pinctrl-names = "default"; + }; + }; }; &pinctrl_0 { diff --git a/arch/arm/boot/dts/exynos5420-pinctrl.dtsi b/arch/arm/boot/dts/exynos5420-pinctrl.dtsi index e62c8eb..8add143 100644 --- a/arch/arm/boot/dts/exynos5420-pinctrl.dtsi +++ b/arch/arm/boot/dts/exynos5420-pinctrl.dtsi @@ -66,6 +66,13 @@ samsung,pin-pud = <0>; samsung,pin-drv = <0>; }; + + usb_hub_reset: usb-hub-reset { + samsung,pins = "gpx2-4"; + samsung,pin-function = <1>; + samsung,pin-pud = <0>; + samsung,pin-drv = <0>; + }; }; pinctrl@13410000 { -- 1.7.10.4 -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
