[PATCH v2 6/6] arch/arm: reMarkable2: Enable wacom_i2c

[Alistair Francis]

Enable the wacom_i2c touchscreen for the reMarkable2.

Signed-off-by: Alistair Francis <alist...@alistair23.me>
---
 arch/arm/boot/dts/imx7d-remarkable2.dts | 41 +++++++++++++++++++++++++
 arch/arm/configs/imx_v6_v7_defconfig    |  1 +
 2 files changed, 42 insertions(+)

diff --git a/arch/arm/boot/dts/imx7d-remarkable2.dts 
b/arch/arm/boot/dts/imx7d-remarkable2.dts
index fba55a0e028a..8052d884a5e5 100644
--- a/arch/arm/boot/dts/imx7d-remarkable2.dts
+++ b/arch/arm/boot/dts/imx7d-remarkable2.dts
@@ -150,6 +150,30 @@ &dma_apbh {
        status = "disabled";
 };
 
+&i2c1 {
+       clock-frequency = <400000>;
+       pinctrl-names = "default", "sleep";
+       pinctrl-0 = <&pinctrl_i2c1>;
+       pinctrl-1 = <&pinctrl_i2c1>;
+       status = "okay";
+
+       digitizer: wacom-i2c@9 {
+               pinctrl-names = "default", "sleep";
+               pinctrl-0 = <&pinctrl_wacom>;
+               pinctrl-1 = <&pinctrl_wacom>;
+               compatible = "wacom,wacom-i2c";
+               reg = <0x09>;
+               interrupt-parent = <&gpio1>;
+               interrupts = <1 2>;
+               flip-tilt-x;
+               flip-tilt-y;
+               flip-pos-x;
+               flip-pos-y;
+               flip-distance;
+               vdd-supply = <&reg_digitizer>;
+       };
+};
+
 &sdma {
        status = "okay";
 };
@@ -221,6 +245,16 @@ &wdog1 {
 };
 
 &iomuxc_lpsr {
+       pinctrl_wacom: wacomgrp {
+               fsl,pins = <
+                       /*MX7D_PAD_LPSR_GPIO1_IO00__GPIO1_IO0   0x00000074 /* 
WACOM RESET */
+                       MX7D_PAD_LPSR_GPIO1_IO01__GPIO1_IO1     0x00000034 /* 
WACOM INT */
+                       MX7D_PAD_LPSR_GPIO1_IO04__GPIO1_IO4     0x00000074 /* 
PDCTB */
+                       /*MX7D_PAD_LPSR_GPIO1_IO05__GPIO1_IO5   0x00000014 /* 
FWE */
+                       /*MX7D_PAD_LPSR_GPIO1_IO06__GPIO1_IO6   0x00000014 /* 
WACOM PWR ENABLE */
+               >;
+       };
+
        pinctrl_digitizer_reg: digitizerreggrp {
                fsl,pins = <
                        /* DIGITIZER_PWR_EN */
@@ -236,6 +270,13 @@ MX7D_PAD_SAI1_RX_SYNC__GPIO6_IO16  0x59
                >;
        };
 
+       pinctrl_i2c1: i2c1grp {
+               fsl,pins = <
+                       MX7D_PAD_I2C1_SDA__I2C1_SDA             0x4000007f
+                       MX7D_PAD_I2C1_SCL__I2C1_SCL             0x4000007f
+               >;
+       };
+
        pinctrl_uart1: uart1grp {
                fsl,pins = <
                        MX7D_PAD_UART1_TX_DATA__UART1_DCE_TX    0x79
diff --git a/arch/arm/configs/imx_v6_v7_defconfig 
b/arch/arm/configs/imx_v6_v7_defconfig
index fa9229616106..2fc8dc6a8b0a 100644
--- a/arch/arm/configs/imx_v6_v7_defconfig
+++ b/arch/arm/configs/imx_v6_v7_defconfig
@@ -167,6 +167,7 @@ CONFIG_TOUCHSCREEN_DA9052=y
 CONFIG_TOUCHSCREEN_EGALAX=y
 CONFIG_TOUCHSCREEN_GOODIX=y
 CONFIG_TOUCHSCREEN_ILI210X=y
+CONFIG_TOUCHSCREEN_WACOM_I2C=y
 CONFIG_TOUCHSCREEN_MAX11801=y
 CONFIG_TOUCHSCREEN_IMX6UL_TSC=y
 CONFIG_TOUCHSCREEN_EDT_FT5X06=y
-- 
2.29.2