Commit 825b8c7e authored by Xu Yang's avatar Xu Yang Committed by Frank Li
Browse files

arm64: dts: imx8qxp-mek: switch Type-C connector power-role to dual 



When attach to PC Type-A port, the USB device controller does not function
at all. Because it is configured as source-only and a Type-A port doesn't
support PD capability, a data role swap is impossible.

Actually, PTN5110THQ is configured for Source role only at POR, but after
POR it can operate as a DRP (Dual-Role Power). By switching the power-role
to dual, the port can operate as a sink and enter device mode when attach
to Type-A port.

Since the board design uses EN_SRC to control the 5V VBUS path and EN_SNK
to control the 12V VBUS output, to avoid outputting a higher VBUS when in
sink role, we set the operation current limit to 0mA so that SW will not
control EN_SNK at all.

Fixes: 2faf4ebc ("arm64: dts: freescale: imx8qxp-mek: enable cadence usb3")
Signed-off-by: default avatarXu Yang <xu.yang_2@nxp.com>
Signed-off-by: default avatarFrank Li <Frank.Li@nxp.com>
parent e3d3d19d

arch/arm64/boot/dts/freescale/imx8qxp-mek.dts

+9 −1
Original line number Diff line number Diff line
@@ -566,9 +566,17 @@ ptn5110: tcpc@50 { 
		usb_con1: connector {

			compatible = "usb-c-connector";

			label = "USB-C";

			power-role = "source";

			power-role = "dual";

			data-role = "dual";

			try-power-role = "sink";

			source-pdos = <PDO_FIXED(5000, 3000, PDO_FIXED_USB_COMM)>;

			/*

			 * Set operational current to 0mA as we don't want EN_SNK

			 * enable 12V VBUS switch when it work as a sink.

			 */

			sink-pdos = <PDO_FIXED(5000, 0, PDO_FIXED_USB_COMM)>;

			op-sink-microwatt = <0>;

			self-powered;



			ports {

				#address-cells = <1>;