linux-kernel - [PATCH v3 2/2] arm64: dts: rk3399-pinephone-pro: Add touchscreen support

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Date:   Tue, 28 Mar 2023 09:33:09 +0200
From:   Javier Martinez Canillas <javierm@...hat.com>
To:     linux-kernel@...r.kernel.org
Cc:     Peter Robinson <pbrobinson@...il.com>,
        Tom <tom@...-fitzhenry.me.uk>,
        Robert Mader <robert.mader@...labora.com>,
        Laurent Pinchart <laurent.pinchart@...asonboard.com>,
        Martijn Braam <martijn@...xit.nl>, Ondrej Jirman <megi@....cz>,
        Jacopo Mondi <jacopo.mondi@...asonboard.com>,
        Kamil Trzciński <ayufan@...fan.eu>,
        Javier Martinez Canillas <javierm@...hat.com>,
        Caleb Connolly <kc@...tmarketos.org>,
        Heiko Stuebner <heiko@...ech.de>,
        Jarrah Gosbell <kernel@...ef.tools>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Rob Herring <robh+dt@...nel.org>, devicetree@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org,
        linux-rockchip@...ts.infradead.org
Subject: [PATCH v3 2/2] arm64: dts: rk3399-pinephone-pro: Add touchscreen support

From: Martijn Braam <martijn@...xit.nl>

The phone has a Goodix GT1158 touchscreen, add a DT node for it.

Signed-off-by: Martijn Braam <martijn@...xit.nl>
Co-developed-by: Kamil Trzciński <ayufan@...fan.eu>
Signed-off-by: Kamil Trzciński <ayufan@...fan.eu>
Co-developed-by: Ondrej Jirman <megi@....cz>
Signed-off-by: Ondrej Jirman <megi@....cz>
Signed-off-by: Javier Martinez Canillas <javierm@...hat.com>
---

Changes in v3:
- Use the correct "goodix,gt1158" compatible string (Ondrej Jirman).
- Remove "poweroff-in-suspend" not supported in mainline (Ondrej Jirman).

 .../dts/rockchip/rk3399-pinephone-pro.dts     | 19 +++++++++++++++++++
 1 file changed, 19 insertions(+)

diff --git a/arch/arm64/boot/dts/rockchip/rk3399-pinephone-pro.dts b/arch/arm64/boot/dts/rockchip/rk3399-pinephone-pro.dts
index 539b36e8bff5..475ba78acc09 100644
--- a/arch/arm64/boot/dts/rockchip/rk3399-pinephone-pro.dts
+++ b/arch/arm64/boot/dts/rockchip/rk3399-pinephone-pro.dts
@@ -367,6 +367,25 @@ regulator-state-mem {
 	};
 };
 
+&i2c3 {
+	i2c-scl-rising-time-ns = <450>;
+	i2c-scl-falling-time-ns = <15>;
+	status = "okay";
+
+	touchscreen@14 {
+		compatible = "goodix,gt1158";
+		reg = <0x14>;
+		interrupt-parent = <&gpio3>;
+		interrupts = <RK_PB5 IRQ_TYPE_EDGE_RISING>;
+		irq-gpios = <&gpio3 RK_PB5 GPIO_ACTIVE_HIGH>;
+		reset-gpios = <&gpio3 RK_PB4 GPIO_ACTIVE_HIGH>;
+		AVDD28-supply = <&vcc3v0_touch>;
+		VDDIO-supply = <&vcc3v0_touch>;
+		touchscreen-size-x = <720>;
+		touchscreen-size-y = <1440>;
+	};
+};
+
 &cluster0_opp {
 	opp04 {
 		status = "disabled";
-- 
2.40.0