Commit 9628655b authored by Alistair Francis's avatar Alistair Francis Committed by Shawn Guo
Browse files

ARM: dts: imx7d-remarkable2: Enable the cyttsp5 



Add support for the cyttsp5 touchscreen controller for the reMarkable 2.

Signed-off-by: default avatarAlistair Francis <alistair@alistair23.me>
Signed-off-by: default avatarShawn Guo <shawnguo@kernel.org>
parent 9e39a2c9

arch/arm/boot/dts/imx7d-remarkable2.dts

+97 −0
Original line number Diff line number Diff line
@@ -8,6 +8,7 @@ 
/dts-v1/;



#include "imx7d.dtsi"

#include <dt-bindings/input/linux-event-codes.h>



/ {

	model = "reMarkable 2.0";
@@ -69,6 +70,17 @@ reg_digitizer: regulator-digitizer { 
		startup-delay-us = <100000>; /* 100 ms */

	};



	reg_touch: regulator-touch {

		compatible = "regulator-fixed";

		regulator-name = "VDD_3V3_TOUCH";

		regulator-min-microvolt = <3300000>;

		regulator-max-microvolt = <3300000>;

		pinctrl-names = "default";

		pinctrl-0 = <&pinctrl_touch_reg>;

		gpio = <&gpio1 11 GPIO_ACTIVE_HIGH>;

		enable-active-high;

	};



	wifi_pwrseq: wifi_pwrseq {

		compatible = "mmc-pwrseq-simple";

		pinctrl-names = "default";
@@ -106,6 +118,68 @@ wacom_digitizer: digitizer@9 { 
	};

};



&i2c3 {

	clock-frequency = <100000>;

	pinctrl-names = "default";

	pinctrl-0 = <&pinctrl_i2c3>;

	status = "okay";



	touchscreen@24 {

		compatible = "cypress,tt21000";

		reg = <0x24>;

		pinctrl-names = "default";

		pinctrl-0 = <&pinctrl_touch>;

		interrupt-parent = <&gpio1>;

		interrupts = <14 IRQ_TYPE_EDGE_FALLING>;

		reset-gpios = <&gpio1 13 GPIO_ACTIVE_LOW>;

		vdd-supply = <&reg_touch>;

		touchscreen-size-x = <880>;

		touchscreen-size-y = <1280>;

		#address-cells = <1>;

		#size-cells = <0>;



		button@0 {

			reg = <0>;

			linux,keycodes = <KEY_HOMEPAGE>;

		};



		button@1 {

			reg = <1>;

			linux,keycodes = <KEY_MENU>;

		};



		button@2 {

			reg = <2>;

			linux,keycodes = <KEY_BACK>;

		};



		button@3 {

			reg = <3>;

			linux,keycodes = <KEY_SEARCH>;

		};



		button@4 {

			reg = <4>;

			linux,keycodes = <KEY_VOLUMEDOWN>;

		};



		button@5 {

			reg = <5>;

			linux,keycodes = <KEY_VOLUMEUP>;

		};



		button@6 {

			reg = <6>;

			linux,keycodes = <KEY_CAMERA>;

		};



		button@7 {

			reg = <7>;

			linux,keycodes = <KEY_POWER>;

		};

	};

};



&i2c4 {

	clock-frequency = <100000>;

	pinctrl-names = "default", "sleep";
@@ -232,6 +306,15 @@ MX7D_PAD_ENET1_RGMII_TXC__GPIO7_IO11 0x00000014 
		>;

	};



	pinctrl_touch: touchgrp {

		fsl,pins = <

			/* CYTTSP interrupt */

			MX7D_PAD_GPIO1_IO14__GPIO1_IO14		0x54

			/* CYTTSP reset */

			MX7D_PAD_GPIO1_IO13__GPIO1_IO13		0x04

		>;

	};



	pinctrl_i2c1: i2c1grp {

		fsl,pins = <

			MX7D_PAD_I2C1_SDA__I2C1_SDA		0x4000007f
@@ -239,6 +322,13 @@ MX7D_PAD_I2C1_SCL__I2C1_SCL 0x4000007f 
		>;

	};



	pinctrl_i2c3: i2c3grp {

		fsl,pins = <

			MX7D_PAD_I2C3_SDA__I2C3_SDA		0x4000007f

			MX7D_PAD_I2C3_SCL__I2C3_SCL		0x4000007f

		>;

	};



	pinctrl_i2c4: i2c4grp {

		fsl,pins = <

			MX7D_PAD_I2C4_SDA__I2C4_SDA		0x4000007f
@@ -246,6 +336,13 @@ MX7D_PAD_I2C4_SCL__I2C4_SCL 0x4000007f 
		>;

	};



	pinctrl_touch_reg: touchreggrp {

		fsl,pins = <

			/* TOUCH_PWR_EN */

			MX7D_PAD_GPIO1_IO11__GPIO1_IO11		0x14

		>;

	};



	pinctrl_uart1: uart1grp {

		fsl,pins = <

			MX7D_PAD_UART1_TX_DATA__UART1_DCE_TX	0x79