linux-kernel - [PATCH 5/8] arm64: dts: qcom: msm8916-samsung-gt510: Add touchscreen

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Message-Id: <20230105123240.1089375-6-nikita@trvn.ru>
Date:   Thu,  5 Jan 2023 17:32:37 +0500
From:   Nikita Travkin <nikita@...n.ru>
To:     Andy Gross <agross@...nel.org>,
        Bjorn Andersson <andersson@...nel.org>
Cc:     Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Konrad Dybcio <konrad.dybcio@...aro.org>,
        Siddharth Manthan <siddharth.manthan@...il.com>,
        Jasper Korten <jja2000@...il.com>,
        linux-arm-msm@...r.kernel.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org,
        ~postmarketos/upstreaming@...ts.sr.ht,
        Nikita Travkin <nikita@...n.ru>
Subject: [PATCH 5/8] arm64: dts: qcom: msm8916-samsung-gt510: Add touchscreen

From: Jasper Korten <jja2000@...il.com>

gt510 uses maXTouch mXT1664T3 touch controller. Add it and regulators
that supply it.

Signed-off-by: Jasper Korten <jja2000@...il.com>
Co-developed-by: Nikita Travkin <nikita@...n.ru>
Signed-off-by: Nikita Travkin <nikita@...n.ru>
---
 .../boot/dts/qcom/msm8916-samsung-gt510.dts   | 58 +++++++++++++++++++
 1 file changed, 58 insertions(+)

diff --git a/arch/arm64/boot/dts/qcom/msm8916-samsung-gt510.dts b/arch/arm64/boot/dts/qcom/msm8916-samsung-gt510.dts
index 44d527b3f1f6..6331166d9067 100644
--- a/arch/arm64/boot/dts/qcom/msm8916-samsung-gt510.dts
+++ b/arch/arm64/boot/dts/qcom/msm8916-samsung-gt510.dts
@@ -32,6 +32,29 @@ reg_motor_vdd: regulator-motor-vdd {
 		pinctrl-names = "default";
 	};
 
+	reg_tsp_1p8v: regulator-tsp-1p8v {
+		compatible = "regulator-fixed";
+		regulator-name = "tsp_1p8v";
+		regulator-min-microvolt = <1800000>;
+		regulator-max-microvolt = <1800000>;
+
+		gpio = <&msmgpio 73 GPIO_ACTIVE_HIGH>;
+		enable-active-high;
+
+		pinctrl-0 = <&tsp_en_default>;
+		pinctrl-names = "default";
+	};
+
+	reg_tsp_3p3v: regulator-tsp-3p3v {
+		compatible = "regulator-fixed";
+		regulator-name = "tsp_3p3v";
+		regulator-min-microvolt = <3300000>;
+		regulator-max-microvolt = <3300000>;
+
+		gpio = <&msmgpio 73 GPIO_ACTIVE_HIGH>;
+		enable-active-high;
+	};
+
 	vibrator {
 		compatible = "pwm-vibrator";
 
@@ -42,6 +65,25 @@ vibrator {
 	};
 };
 
+&blsp_i2c5 {
+	status = "okay";
+
+	touchscreen@4a {
+		compatible = "atmel,maxtouch";
+		reg = <0x4a>;
+		interrupt-parent = <&msmgpio>;
+		interrupts = <13 IRQ_TYPE_LEVEL_LOW>;
+
+		vdd-supply = <&reg_tsp_1p8v>;
+		vdda-supply = <&reg_tsp_3p3v>;
+
+		reset-gpios = <&msmgpio 114 GPIO_ACTIVE_LOW>;
+
+		pinctrl-0 = <&tsp_int_rst_default>;
+		pinctrl-names = "default";
+	};
+};
+
 &msmgpio {
 	motor_en_default: motor-en-default-state {
 		pins = "gpio76";
@@ -55,4 +97,20 @@ motor_pwm_default: motor-pwm-default-state {
 		pins = "gpio50";
 		function = "gcc_gp2_clk_a";
 	};
+
+	tsp_en_default: tsp-en-default-state {
+		pins = "gpio73";
+		function = "gpio";
+
+		drive-strength = <2>;
+		bias-disable;
+	};
+
+	tsp_int_rst_default: tsp-int-rst-default-state {
+		pins = "gpio13", "gpio114";
+		function = "gpio";
+
+		drive-strength = <2>;
+		bias-disable;
+	};
 };
-- 
2.38.1