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

Oleksij Rempel o.rempel at pengutronix.de
Wed Jan 20 09:22:14 EST 2021


Add touchscreen support to the Protonic VT7 board.

Co-Developed-by: Robin van der Gracht <robin at protonic.nl>
Signed-off-by: Robin van der Gracht <robin at protonic.nl>
Signed-off-by: Oleksij Rempel <o.rempel at pengutronix.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 at 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




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