diff mbox series

[2/9] arm: dts: imx8mm-venice-gw71xx: fix USB OTG VBUS

Message ID 20210727221941.10420-2-tharvey@gateworks.com
State Accepted
Commit 98559e02f16fc3fb96b0760d1b63780c46d95eab
Delegated to: Stefano Babic
Headers show
Series [1/9] configs: imx8mm_venice_defconfig: remove unused SPL features | expand

Commit Message

Tim Harvey July 27, 2021, 10:19 p.m. UTC 
The GW71xx has a USB Type-C connector with USB 2.0 signaling. GPIO1_12
is the power-enable to the TPS25821 Source controller and power switch
responsible for monitoring the CC pins and enabling VBUS. Therefore
GPIO1_12 must always be enabled and the vbus output enable from the
IMX8MM can be ignored.

To fix USB OTG VBUS enable a pull-up on GPIO1_12 to always power the
TPS25821 and change the regulator output to GPIO1_10 which is
unconnected.

Signed-off-by: Tim Harvey <tharvey@gateworks.com>
---
 arch/arm/dts/imx8mm-venice-gw71xx.dtsi | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)
diff mbox series

Patch

diff --git a/arch/arm/dts/imx8mm-venice-gw71xx.dtsi b/arch/arm/dts/imx8mm-venice-gw71xx.dtsi
index 905b68a3da..8e4a0ce997 100644
--- a/arch/arm/dts/imx8mm-venice-gw71xx.dtsi
+++ b/arch/arm/dts/imx8mm-venice-gw71xx.dtsi
@@ -46,7 +46,7 @@ 
 		pinctrl-0 = <&pinctrl_reg_usb1_en>;
 		compatible = "regulator-fixed";
 		regulator-name = "usb_otg1_vbus";
-		gpio = <&gpio1 12 GPIO_ACTIVE_HIGH>;
+		gpio = <&gpio1 10 GPIO_ACTIVE_HIGH>;
 		enable-active-high;
 		regulator-min-microvolt = <5000000>;
 		regulator-max-microvolt = <5000000>;
@@ -156,7 +156,8 @@ 
 
 	pinctrl_reg_usb1_en: regusb1grp {
 		fsl,pins = <
-			MX8MM_IOMUXC_GPIO1_IO12_GPIO1_IO12	0x41
+			MX8MM_IOMUXC_GPIO1_IO10_GPIO1_IO10	0x41
+			MX8MM_IOMUXC_GPIO1_IO12_GPIO1_IO12	0x141
 			MX8MM_IOMUXC_GPIO1_IO13_USB1_OTG_OC	0x41
 		>;
 	};