linux-kernel - [PATCH V6] arm64: dts: sc7280: Add volume up support for sc7280-idp

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Date:   Fri, 17 Sep 2021 16:40:40 +0530
From:   Satya Priya <skakit@...eaurora.org>
To:     Linus Walleij <linus.walleij@...aro.org>,
        Rob Herring <robh+dt@...nel.org>,
        Andy Gross <agross@...nel.org>,
        Bjorn Andersson <bjorn.andersson@...aro.org>
Cc:     swboyd@...omium.org, David Collins <collinsd@...eaurora.org>,
        kgunda@...eaurora.org, linux-gpio@...r.kernel.org,
        linux-kernel@...r.kernel.org, devicetree@...r.kernel.org,
        linux-arm-msm@...r.kernel.org, satya priya <skakit@...eaurora.org>
Subject: [PATCH V6] arm64: dts: sc7280: Add volume up support for sc7280-idp

From: satya priya <skakit@...eaurora.org>

Add pm7325 PMIC gpio support for vol+ on sc7280-idp.

Signed-off-by: satya priya <skakit@...eaurora.org>
Reviewed-by: Stephen Boyd <swboyd@...omium.org>
---
Changes in V2:
 - No changes.

Changes in V3:
 - Sorted the nodes alphabetically.

Changes in V4:
 - Updated the node names to replace underscores with hipens

Changes in V5:
 - Moved the gpio-keys node under root node.

Changes in V6:
 - Added linux-event-codes.h explicitly in sc7280-idp.dtsi

 arch/arm64/boot/dts/qcom/sc7280-idp.dtsi | 32 ++++++++++++++++++++++++++++++++
 1 file changed, 32 insertions(+)

diff --git a/arch/arm64/boot/dts/qcom/sc7280-idp.dtsi b/arch/arm64/boot/dts/qcom/sc7280-idp.dtsi
index 99f9ee5..8f0958d 100644
--- a/arch/arm64/boot/dts/qcom/sc7280-idp.dtsi
+++ b/arch/arm64/boot/dts/qcom/sc7280-idp.dtsi
@@ -7,11 +7,32 @@
 
 #include <dt-bindings/gpio/gpio.h>
 #include <dt-bindings/iio/qcom,spmi-adc7-pmk8350.h>
+#include <dt-bindings/input/linux-event-codes.h>
 #include "sc7280.dtsi"
 #include "pm7325.dtsi"
 #include "pm8350c.dtsi"
 #include "pmk8350.dtsi"
 
+/ {
+	gpio-keys {
+		compatible = "gpio-keys";
+		label = "gpio-keys";
+
+		pinctrl-names = "default";
+		pinctrl-0 = <&key_vol_up_default>;
+
+		volume-up {
+			label = "volume_up";
+			gpios = <&pm7325_gpios 6 GPIO_ACTIVE_LOW>;
+			linux,input-type = <1>;
+			linux,code = <KEY_VOLUMEUP>;
+			gpio-key,wakeup;
+			debounce-interval = <15>;
+			linux,can-disable;
+		};
+	};
+};
+
 &apps_rsc {
 	pm7325-regulators {
 		compatible = "qcom,pm7325-rpmh-regulators";
@@ -288,6 +309,17 @@
 
 /* PINCTRL - additions to nodes defined in sc7280.dtsi */
 
+&pm7325_gpios {
+	key_vol_up_default: key-vol-up-default {
+		pins = "gpio6";
+		function = "normal";
+		input-enable;
+		bias-pull-up;
+		power-source = <0>;
+		qcom,drive-strength = <3>;
+	};
+};
+
 &qup_uart5_default {
 	tx {
 		pins = "gpio46";
-- 
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