linux-kernel - [PATCH 2/6] arm64: dts: qcom: qcs404-evb: Define VBUS pins

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Message-Id: <20200311191517.8221-3-bryan.odonoghue@linaro.org>
Date:   Wed, 11 Mar 2020 19:15:13 +0000
From:   Bryan O'Donoghue <bryan.odonoghue@...aro.org>
To:     agross@...nel.org, bjorn.andersson@...aro.org,
        linux-usb@...r.kernel.org
Cc:     linux-arm-msm@...r.kernel.org, linux-kernel@...r.kernel.org,
        jackp@...eaurora.org, robh@...nel.org,
        Bryan O'Donoghue <bryan.odonoghue@...aro.org>,
        Rob Herring <robh+dt@...nel.org>,
        Mark Rutland <mark.rutland@....com>, devicetree@...r.kernel.org
Subject: [PATCH 2/6] arm64: dts: qcom: qcs404-evb: Define VBUS pins

Defines VBUS detect and VBUS boost for the QCS404 EVB.

Detect:
VBUS present/absent is presented to the SoC via a GPIO on the EVB. Define
the pin mapping for later use by gpio-usb-conn.

Boost:
An external regulator is used to trigger VBUS on/off via GPIO. This patch
defines the relevant GPIO in the EVB dts.

Cc: Andy Gross <agross@...nel.org>
Cc: Bjorn Andersson <bjorn.andersson@...aro.org>
Cc: Rob Herring <robh+dt@...nel.org>
Cc: Mark Rutland <mark.rutland@....com>
Cc: linux-arm-msm@...r.kernel.org
Cc: devicetree@...r.kernel.org
Cc: linux-kernel@...r.kernel.org
Tested-by: Bjorn Andersson <bjorn.andersson@...aro.org>
Signed-off-by: Bryan O'Donoghue <bryan.odonoghue@...aro.org>
---
 arch/arm64/boot/dts/qcom/qcs404-evb.dtsi | 22 ++++++++++++++++++++++
 1 file changed, 22 insertions(+)

diff --git a/arch/arm64/boot/dts/qcom/qcs404-evb.dtsi b/arch/arm64/boot/dts/qcom/qcs404-evb.dtsi
index 522d3ef72df5..62ef9c34b04e 100644
--- a/arch/arm64/boot/dts/qcom/qcs404-evb.dtsi
+++ b/arch/arm64/boot/dts/qcom/qcs404-evb.dtsi
@@ -4,6 +4,8 @@
 #include <dt-bindings/gpio/gpio.h>
 #include "qcs404.dtsi"
 #include "pms405.dtsi"
+#include <dt-bindings/gpio/gpio.h>
+#include <dt-bindings/pinctrl/qcom,pmic-gpio.h>
 
 / {
 	aliases {
@@ -271,6 +273,26 @@ rclk {
 	};
 };
 
+&pms405_gpios {
+	usb_vbus_boost_pin: usb-vbus-boost-pin {
+		pinconf {
+			pins = "gpio3";
+			function = PMIC_GPIO_FUNC_NORMAL;
+			output-low;
+			power-source = <1>;
+		};
+	};
+	usb3_vbus_pin: usb3-vbus-pin {
+		pinconf {
+			pins = "gpio12";
+			function = PMIC_GPIO_FUNC_NORMAL;
+			input-enable;
+			bias-pull-down;
+			power-source = <1>;
+		};
+	};
+};
+
 &wifi {
 	status = "okay";
 	vdd-0.8-cx-mx-supply = <&vreg_l2_1p275>;
-- 
2.25.1