[PATCH] ARM: dts: imx6qdl-dhcom: Add USB overcurrent pin on SoM layer

Christoph Niedermaier cniedermaier at dh-electronics.com
Wed Dec 8 07:15:04 PST 2021


Add USB overcurrent pin muxing on SoM layer, but disable it
by default. If a board has connected this pin like the
picoITX, this property should be removed in the board file.

Signed-off-by: Christoph Niedermaier <cniedermaier at dh-electronics.com>
Cc: Shawn Guo <shawnguo at kernel.org>
Cc: Fabio Estevam <festevam at gmail.com>
Cc: Marek Vasut <marex at denx.de>
Cc: NXP Linux Team <linux-imx at nxp.com>
Cc: kernel at dh-electronics.com
To: linux-arm-kernel at lists.infradead.org
---
 arch/arm/boot/dts/imx6qdl-dhcom-picoitx.dtsi | 4 ++++
 arch/arm/boot/dts/imx6qdl-dhcom-som.dtsi     | 2 ++
 2 files changed, 6 insertions(+)

diff --git a/arch/arm/boot/dts/imx6qdl-dhcom-picoitx.dtsi b/arch/arm/boot/dts/imx6qdl-dhcom-picoitx.dtsi
index 4cd4cb9543c8..a67682bfe7bd 100644
--- a/arch/arm/boot/dts/imx6qdl-dhcom-picoitx.dtsi
+++ b/arch/arm/boot/dts/imx6qdl-dhcom-picoitx.dtsi
@@ -48,6 +48,10 @@
 		"", "", "", "", "", "", "", "";
 };
 
+&usbh1 { /* USB overcurrent pin is connected */
+	/delete-property/ disable-over-current;
+};
+
 &iomuxc {
 	pinctrl-0 = <
 			/*
diff --git a/arch/arm/boot/dts/imx6qdl-dhcom-som.dtsi b/arch/arm/boot/dts/imx6qdl-dhcom-som.dtsi
index 5d10c40313cb..e4fdce016c34 100644
--- a/arch/arm/boot/dts/imx6qdl-dhcom-som.dtsi
+++ b/arch/arm/boot/dts/imx6qdl-dhcom-som.dtsi
@@ -385,6 +385,7 @@
 };
 
 &usbh1 {
+	disable-over-current;
 	dr_mode = "host";
 	pinctrl-0 = <&pinctrl_usbh1>;
 	pinctrl-names = "default";
@@ -728,6 +729,7 @@
 	pinctrl_usbh1: usbh1-grp {
 		fsl,pins = <
 			MX6QDL_PAD_EIM_D31__GPIO3_IO31		0x120b0
+			MX6QDL_PAD_EIM_D30__USB_H1_OC		0x1b0b1
 		>;
 	};
 
-- 
2.11.0




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