linux-kernel - [PATCH v1 4/7] ARM: dts: imx6dl-prtvt7: add TSC2046 touchscreen node

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Date:   Wed, 20 Jan 2021 15:22:14 +0100
From:   Oleksij Rempel <o.rempel@...gutronix.de>
To:     Mark Rutland <mark.rutland@....com>,
        Rob Herring <robh+dt@...nel.org>,
        Sascha Hauer <s.hauer@...gutronix.de>,
        Shawn Guo <shawnguo@...nel.org>,
        Thierry Reding <thierry.reding@...il.com>,
        Sam Ravnborg <sam@...nborg.org>,
        David Airlie <airlied@...ux.ie>,
        Daniel Vetter <daniel@...ll.ch>
Cc:     Oleksij Rempel <o.rempel@...gutronix.de>,
        Robin van der Gracht <robin@...tonic.nl>,
        devicetree@...r.kernel.org, Fabio Estevam <festevam@...il.com>,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
        NXP Linux Team <linux-imx@....com>,
        Pengutronix Kernel Team <kernel@...gutronix.de>,
        David Jander <david@...tonic.nl>,
        dri-devel@...ts.freedesktop.org
Subject: [PATCH v1 4/7] ARM: dts: imx6dl-prtvt7: add TSC2046 touchscreen node

Add touchscreen support to the Protonic VT7 board.

Co-Developed-by: Robin van der Gracht <robin@...tonic.nl>
Signed-off-by: Robin van der Gracht <robin@...tonic.nl>
Signed-off-by: Oleksij Rempel <o.rempel@...gutronix.de>
---
 arch/arm/boot/dts/imx6dl-prtvt7.dts | 20 ++++++++++++++++++++
 1 file changed, 20 insertions(+)

diff --git a/arch/arm/boot/dts/imx6dl-prtvt7.dts b/arch/arm/boot/dts/imx6dl-prtvt7.dts
index d9cb1e41cc10..63ae2065834c 100644
--- a/arch/arm/boot/dts/imx6dl-prtvt7.dts
+++ b/arch/arm/boot/dts/imx6dl-prtvt7.dts
@@ -266,6 +266,26 @@ &ecspi2 {
 	pinctrl-names = "default";
 	pinctrl-0 = <&pinctrl_ecspi2>;
 	status = "okay";
+
+	touchscreen@0 {
+		compatible = "ti,tsc2046";
+		reg = <0>;
+		pinctrl-0 = <&pinctrl_tsc>;
+		pinctrl-names ="default";
+		spi-max-frequency = <100000>;
+		interrupts-extended = <&gpio3 20 IRQ_TYPE_EDGE_FALLING>;
+		pendown-gpio = <&gpio3 20 GPIO_ACTIVE_LOW>;
+
+		touchscreen-inverted-x;
+		touchscreen-inverted-y;
+		touchscreen-max-pressure = <4095>;
+
+		ti,vref-delay-usecs = /bits/ 16 <100>;
+		ti,x-plate-ohms = /bits/ 16 <800>;
+		ti,y-plate-ohms = /bits/ 16 <300>;
+
+		wakeup-source;
+	};
 };
 
 &i2c1 {
-- 
2.30.0