Commit 98473f28 authored by Dmitry Osipenko's avatar Dmitry Osipenko Committed by Thierry Reding
Browse files

ARM: tegra: nexus7: Enable USB OTG mode 



Nexus 7 has OTG-cable microUSB port, enable OTG mode. USB peripheral
devices now can be connected to Nexus 7 using OTG adapter, switching
USB port into host mode.

Signed-off-by: default avatarDmitry Osipenko <digetx@gmail.com>
Signed-off-by: default avatarThierry Reding <treding@nvidia.com>
parent b460ecc0

arch/arm/boot/dts/tegra30-asus-nexus7-grouper-common.dtsi

+23 −2
Original line number Diff line number Diff line
@@ -944,9 +944,29 @@ power_supply: charger@6a { 
			interrupts = <TEGRA_GPIO(V, 1) IRQ_TYPE_EDGE_BOTH>;



			summit,enable-charge-control = <SMB3XX_CHG_ENABLE_PIN_ACTIVE_LOW>;

			summit,inok-polarity = <SMB3XX_SYSOK_INOK_ACTIVE_LOW>;

			summit,enable-usb-charging;



			monitored-battery = <&battery_cell>;



			usb_vbus: usb-vbus {

				regulator-name = "usb_vbus";

				regulator-min-microvolt = <5000000>;

				regulator-max-microvolt = <5000000>;

				regulator-min-microamp = <750000>;

				regulator-max-microamp = <750000>;



				/*

				 * SMB347 INOK input pin is connected to PMIC's

				 * ACOK output, which is fixed to ACTIVE_LOW as

				 * long as battery voltage is in a good range.

				 *

				 * Active INOK disables SMB347 output, so polarity

				 * needs to be toggled when we want to get the

				 * output.

				 */

				summit,needs-inok-toggle;

			};

		};

	};
@@ -1019,12 +1039,13 @@ sdmmc4: mmc@78000600 { 
	usb@7d000000 {

		compatible = "nvidia,tegra30-udc";

		status = "okay";

		dr_mode = "peripheral";

		dr_mode = "otg";

		vbus-supply = <&usb_vbus>;

	};



	usb-phy@7d000000 {

		status = "okay";

		dr_mode = "peripheral";

		dr_mode = "otg";

		nvidia,hssync-start-delay = <0>;

		nvidia,xcvr-lsfslew = <2>;

		nvidia,xcvr-lsrslew = <2>;