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ARM: dts: imx7d-remarkable2: Enable the cyttsp5

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

Signed-off-by: Alistair Francis <alistair@alistair23.me>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
This commit is contained in:
Alistair Francis
2023-02-27 14:50:21 +10:00
committed by Shawn Guo
parent 9e39a2c93e
commit 9628655b14
1 changed files with 97 additions and 0 deletions
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97
arch/arm/boot/dts/imx7d-remarkable2.dts
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@@ -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