linux-kernel - [PATCH] ARM: dts: imx6dl-yapp4: Specify USB overcurrent protection polarity

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Date:   Wed, 15 Jan 2020 16:17:28 +0100
From:   Michal Vokáč <michal.vokac@...ft.com>
To:     Rob Herring <robh+dt@...nel.org>, Shawn Guo <shawnguo@...nel.org>
Cc:     Mark Rutland <mark.rutland@....com>,
        Sascha Hauer <s.hauer@...gutronix.de>,
        Fabio Estevam <festevam@...il.com>, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org,
        Michal Vokáč <michal.vokac@...ft.com>
Subject: [PATCH] ARM: dts: imx6dl-yapp4: Specify USB overcurrent protection polarity

After reset the oc protection polarity is set to active high on imx6.
If the polarity is not specified in device tree it is not changed.

The imx6dl-yapp4 platform uses an active-low oc signal so explicitly
configure that in the device tree.

Signed-off-by: Michal Vokáč <michal.vokac@...ft.com>
---
 arch/arm/boot/dts/imx6dl-yapp4-common.dtsi | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/arch/arm/boot/dts/imx6dl-yapp4-common.dtsi b/arch/arm/boot/dts/imx6dl-yapp4-common.dtsi
index b494042e2d8f..fb6ce6d662bc 100644
--- a/arch/arm/boot/dts/imx6dl-yapp4-common.dtsi
+++ b/arch/arm/boot/dts/imx6dl-yapp4-common.dtsi
@@ -563,6 +563,7 @@
 	pinctrl-names = "default";
 	pinctrl-0 = <&pinctrl_usbh1>;
 	vbus-supply = <&reg_usb_h1_vbus>;
+	over-current-active-low;
 	status = "disabled";
 };
 
@@ -570,6 +571,7 @@
 	pinctrl-names = "default";
 	pinctrl-0 = <&pinctrl_usbotg>;
 	vbus-supply = <&reg_usb_otg_vbus>;
+	over-current-active-low;
 	srp-disable;
 	hnp-disable;
 	adp-disable;
-- 
2.1.4