linux-kernel - [PATCH v6 4/4] arm64: dts: qcom: msm8916-acer-a1-724: Add touchscreen

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Date:   Wed, 23 Nov 2022 03:39:21 +0000
From:   "Lin, Meng-Bo" <linmengbo0689@...tonmail.com>
To:     linux-kernel@...r.kernel.org
Cc:     Andy Gross <agross@...nel.org>,
        Bjorn Andersson <andersson@...nel.org>,
        Konrad Dybcio <konrad.dybcio@...aro.org>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Stephan Gerhold <stephan@...hold.net>,
        Nikita Travkin <nikita@...n.ru>, devicetree@...r.kernel.org,
        linux-arm-msm@...r.kernel.org,
        ~postmarketos/upstreaming@...ts.sr.ht
Subject: [PATCH v6 4/4] arm64: dts: qcom: msm8916-acer-a1-724: Add touchscreen

A1-724 uses a Focaltech FT5446 touchscreen that is connected to blsp_i2c5.
Add it to the device tree.

Signed-off-by: Lin, Meng-Bo <linmengbo0689@...tonmail.com>
---
 .../boot/dts/qcom/msm8916-acer-a1-724.dts     | 40 +++++++++++++++++++
 1 file changed, 40 insertions(+)

diff --git a/arch/arm64/boot/dts/qcom/msm8916-acer-a1-724.dts b/arch/arm64/boot/dts/qcom/msm8916-acer-a1-724.dts
index bea0d022dd9a..ed3fa7b3575b 100644
--- a/arch/arm64/boot/dts/qcom/msm8916-acer-a1-724.dts
+++ b/arch/arm64/boot/dts/qcom/msm8916-acer-a1-724.dts
@@ -81,6 +81,30 @@ magnetometer@12 {
 	};
 };
 
+&blsp_i2c5 {
+	status = "okay";
+
+	touchscreen@38 {
+		/* Actually ft5446 */
+		compatible = "edt,edt-ft5406";
+		reg = <0x38>;
+
+		interrupt-parent = <&msmgpio>;
+		interrupts = <13 IRQ_TYPE_LEVEL_LOW>;
+
+		reset-gpios = <&msmgpio 12 GPIO_ACTIVE_LOW>;
+
+		vcc-supply = <&pm8916_l16>;
+		iovcc-supply = <&pm8916_l6>;
+
+		touchscreen-size-x = <720>;
+		touchscreen-size-y = <1280>;
+
+		pinctrl-names = "default";
+		pinctrl-0 = <&touchscreen_default>;
+	};
+};
+
 &blsp1_uart2 {
 	status = "okay";
 };
@@ -245,6 +269,22 @@ gpio_keys_default: gpio-keys-default-state {
 		bias-pull-up;
 	};
 
+	touchscreen_default: touchscreen-default-state {
+		reset-pins {
+			pins = "gpio12";
+			function = "gpio";
+			drive-strength = <2>;
+			bias-disable;
+		};
+
+		touchscreen-pins {
+			pins = "gpio13";
+			function = "gpio";
+			drive-strength = <2>;
+			bias-pull-up;
+		};
+	};
+
 	usb_id_default: usb-id-default-state {
 		pins = "gpio110";
 		function = "gpio";
-- 
2.30.2