[PATCH v2] ARM: dts: imx6qdl-wandboard: enable USB OTG
From: festevam@gmail.com (Fabio Estevam)
Date: 2017-07-23 20:29:43
Also in:
linux-devicetree
[Adding Shawn] On Sun, Jul 23, 2017 at 1:49 PM, Alexander Kurz [off-list ref] wrote:
Enable USB OTG (dual-role) on the Wandboard. Note, that the USB_OTG_VBUS current is quite limited due to a 22R resistor in the power line. Hence, the overcurrent signal of 1A will never be triggered on this board. Signed-off-by: Alexander Kurz <redacted>
Reviewed-by: Fabio Estevam <redacted>
quoted hunk
--- arch/arm/boot/dts/imx6qdl-wandboard.dtsi | 19 ++++++++++++++++++- 1 file changed, 18 insertions(+), 1 deletion(-)diff --git a/arch/arm/boot/dts/imx6qdl-wandboard.dtsi b/arch/arm/boot/dts/imx6qdl-wandboard.dtsi index b4fa7f1..f1abde8 100644 --- a/arch/arm/boot/dts/imx6qdl-wandboard.dtsi +++ b/arch/arm/boot/dts/imx6qdl-wandboard.dtsi@@ -34,6 +34,16 @@ regulator-max-microvolt = <3300000>; regulator-always-on; }; + + reg_usb_otg_vbus: usb_otg_vbus { + compatible = "regulator-fixed"; + regulator-name = "usb_otg_vbus"; + regulator-min-microvolt = <5000000>; + regulator-max-microvolt = <5000000>; + pinctrl-names = "default"; + pinctrl-0 = <&pinctrl_usbotgvbus>; + gpio = <&gpio3 22 GPIO_ACTIVE_LOW>; + }; }; sound {@@ -170,6 +180,12 @@ >; }; + pinctrl_usbotgvbus: usbotgvbusgrp { + fsl,pins = < + MX6QDL_PAD_EIM_D22__GPIO3_IO22 0x130b0 + >; + }; + pinctrl_usdhc1: usdhc1grp { fsl,pins = < MX6QDL_PAD_SD1_CMD__SD1_CMD 0x17059@@ -244,10 +260,11 @@ }; &usbotg { + vbus-supply = <®_usb_otg_vbus>; pinctrl-names = "default"; pinctrl-0 = <&pinctrl_usbotg>; disable-over-current; - dr_mode = "peripheral"; + dr_mode = "otg"; status = "okay"; }; --2.1.4 _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel at lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel