linux-kernel - [PATCH v3 9/9] arm64: dts: qcom: sm6375-pdx225: Configure Samsung touchscreen

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Date:   Tue, 15 Nov 2022 16:27:27 +0100
From:   Konrad Dybcio <konrad.dybcio@...aro.org>
To:     linux-arm-msm@...r.kernel.org, andersson@...nel.org,
        agross@...nel.org, krzysztof.kozlowski@...aro.org
Cc:     patches@...aro.org, Konrad Dybcio <konrad.dybcio@...aro.org>,
        Konrad Dybcio <konrad.dybcio@...ainline.org>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [PATCH v3 9/9] arm64: dts: qcom: sm6375-pdx225: Configure Samsung touchscreen

Add a pretty bog-standard-for-Xperias-for-the-past-3-years
touchscreen setup.

The OEM that built the Xperia 10 IV for SONY decided to use some
kind of a GPIO regulator that needs to be enabled at all times
for both the touch panel and the display panel to function.

Signed-off-by: Konrad Dybcio <konrad.dybcio@...aro.org>
---
 .../qcom/sm6375-sony-xperia-murray-pdx225.dts | 31 +++++++++++++++++++
 1 file changed, 31 insertions(+)

diff --git a/arch/arm64/boot/dts/qcom/sm6375-sony-xperia-murray-pdx225.dts b/arch/arm64/boot/dts/qcom/sm6375-sony-xperia-murray-pdx225.dts
index 0f1ddfa28c89..d18167bcb41f 100644
--- a/arch/arm64/boot/dts/qcom/sm6375-sony-xperia-murray-pdx225.dts
+++ b/arch/arm64/boot/dts/qcom/sm6375-sony-xperia-murray-pdx225.dts
@@ -81,6 +81,23 @@ &gpi_dma1 {
 	status = "okay";
 };
 
+&i2c8 {
+	clock-frequency = <400000>;
+	status = "okay";
+
+	touchscreen@48 {
+		compatible = "samsung,s6sy761";
+		reg = <0x48>;
+		interrupt-parent = <&tlmm>;
+		interrupts = <22 0x2008>;
+
+		vdd-supply = <&pm6125_l13>;
+
+		pinctrl-names = "default";
+		pinctrl-0 = <&ts_int_default &ts_avdd_default>;
+	};
+};
+
 &pmk8350_adc_tm {
 	status = "okay";
 };
@@ -290,6 +307,20 @@ pmr735a_l7: l7 {
 
 &tlmm {
 	gpio-reserved-ranges = <13 4>;
+
+	ts_int_default: ts-int-default-state {
+		pins = "gpio22";
+		function = "gpio";
+		drive-strength = <8>;
+		bias-pull-up;
+	};
+
+	ts_avdd_default: ts-avdd-default-state {
+		pins = "gpio59";
+		function = "gpio";
+		drive-strength = <8>;
+		output-high;
+	};
 };
 
 &usb_1 {
-- 
2.38.1