linux-kernel - [PATCH 09/10] arm64: dts: qcom: sm6350-lena: Configure Samsung touchscreen

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Message-Id: <20221030073232.22726-10-marijn.suijten@somainline.org>
Date:   Sun, 30 Oct 2022 08:32:31 +0100
From:   Marijn Suijten <marijn.suijten@...ainline.org>
To:     phone-devel@...r.kernel.org
Cc:     ~postmarketos/upstreaming@...ts.sr.ht,
        AngeloGioacchino Del Regno 
        <angelogioacchino.delregno@...ainline.org>,
        Konrad Dybcio <konrad.dybcio@...ainline.org>,
        Martin Botka <martin.botka@...ainline.org>,
        Jami Kettunen <jami.kettunen@...ainline.org>,
        Marijn Suijten <marijn.suijten@...ainline.org>,
        Andy Gross <agross@...nel.org>,
        Bjorn Andersson <andersson@...nel.org>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Luca Weiss <luca@...tu.xyz>, linux-arm-msm@...r.kernel.org,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [PATCH 09/10] arm64: dts: qcom: sm6350-lena: Configure Samsung touchscreen

Use the generic samsung,s6sy761 touchscreen driver for this device,
together with a few pins and regulators to power it up correctly.

Signed-off-by: Marijn Suijten <marijn.suijten@...ainline.org>
---
 .../qcom/sm6350-sony-xperia-lena-pdx213.dts   | 41 +++++++++++++++++++
 1 file changed, 41 insertions(+)

diff --git a/arch/arm64/boot/dts/qcom/sm6350-sony-xperia-lena-pdx213.dts b/arch/arm64/boot/dts/qcom/sm6350-sony-xperia-lena-pdx213.dts
index 6eb1d4e5e60f..20f35623d1ef 100644
--- a/arch/arm64/boot/dts/qcom/sm6350-sony-xperia-lena-pdx213.dts
+++ b/arch/arm64/boot/dts/qcom/sm6350-sony-xperia-lena-pdx213.dts
@@ -43,6 +43,15 @@ key-volume-down {
 			gpios = <&pm6350_gpios 2 GPIO_ACTIVE_LOW>;
 		};
 	};
+
+	touch_en_vreg: touch-en-regulator {
+		compatible = "regulator-fixed";
+		regulator-name = "touch_en_vreg";
+		gpio = <&tlmm 10 GPIO_ACTIVE_HIGH>;
+		enable-active-high;
+
+		vin-supply = <&pm6350_l6>;
+	};
 };
 
 &apps_rsc {
@@ -280,6 +289,23 @@ &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 = <&pm6350_l11>;
+		avdd-supply = <&touch_en_vreg>;
+
+		pinctrl-names = "default";
+		pinctrl-0 = <&ts_int_default &ts_active>;
+	};
+};
+
 &pm6350_gpios {
 	gpio_keys_state: gpio-keys-state {
 		key-volume-down-pins {
@@ -334,6 +360,21 @@ &sdhc_2 {
 
 &tlmm {
 	gpio-reserved-ranges = <13 4>, <45 2>, <56 2>;
+
+	ts_active: ts-active-state {
+		pins = "gpio21";
+		function = "gpio";
+		drive-strength = <8>;
+		bias-pull-up;
+	};
+
+	ts_int_default: ts-int-default-state {
+		pins = "gpio22";
+		function = "gpio";
+		drive-strength = <2>;
+		bias-disable;
+		input-enable;
+	};
 };
 
 &usb_1 {
-- 
2.38.1