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    Subject[PATCH v5 9/9] ARM: dts: imx7d: remarkable2: add wacom digitizer device
    Date
    Enable the wacom_i2c touchscreen for the reMarkable2.

    Signed-off-by: Alistair Francis <alistair@alistair23.me>
    ---
    arch/arm/boot/dts/imx7d-remarkable2.dts | 61 +++++++++++++++++++++++++
    1 file changed, 61 insertions(+)

    diff --git a/arch/arm/boot/dts/imx7d-remarkable2.dts b/arch/arm/boot/dts/imx7d-remarkable2.dts
    index c3dda2b92fe6..ea1dd41023f9 100644
    --- a/arch/arm/boot/dts/imx7d-remarkable2.dts
    +++ b/arch/arm/boot/dts/imx7d-remarkable2.dts
    @@ -34,6 +34,19 @@ reg_brcm: regulator-brcm {
    startup-delay-us = <150>;
    };

    + reg_digitizer: regulator-digitizer {
    + compatible = "regulator-fixed";
    + regulator-name = "VDD_3V3_DIGITIZER";
    + regulator-min-microvolt = <3300000>;
    + regulator-max-microvolt = <3300000>;
    + pinctrl-names = "default", "sleep";
    + pinctrl-0 = <&pinctrl_digitizer_reg>;
    + pinctrl-1 = <&pinctrl_digitizer_reg>;
    + gpio = <&gpio1 6 GPIO_ACTIVE_HIGH>;
    + enable-active-high;
    + startup-delay-us = <100000>; /* 100 ms */
    + };
    +
    wifi_pwrseq: wifi_pwrseq {
    compatible = "mmc-pwrseq-simple";
    pinctrl-names = "default";
    @@ -51,6 +64,28 @@ &clks {
    assigned-clock-rates = <0>, <32768>;
    };

    +&i2c1 {
    + clock-frequency = <400000>;
    + pinctrl-names = "default";
    + pinctrl-0 = <&pinctrl_i2c1>;
    + status = "okay";
    +
    + wacom_digitizer: digitizer@9 {
    + compatible = "wacom,i2c-30";
    + reg = <0x09>;
    + pinctrl-names = "default";
    + pinctrl-0 = <&pinctrl_wacom>;
    + interrupt-parent = <&gpio1>;
    + interrupts = <1 IRQ_TYPE_EDGE_FALLING>;
    + flip-tilt-x;
    + flip-tilt-y;
    + flip-pos-x;
    + flip-pos-y;
    + flip-distance;
    + vdd-supply = <&reg_digitizer>;
    + };
    +};
    +
    &snvs_pwrkey {
    status = "okay";
    };
    @@ -117,6 +152,25 @@ &wdog1 {
    fsl,ext-reset-output;
    };

    +&iomuxc_lpsr {
    + pinctrl_digitizer_reg: digitizerreggrp {
    + fsl,pins = <
    + /* DIGITIZER_PWR_EN */
    + MX7D_PAD_LPSR_GPIO1_IO06__GPIO1_IO6 0x14
    + >;
    + };
    +
    + pinctrl_wacom: wacomgrp {
    + fsl,pins = <
    + /*MX7D_PAD_LPSR_GPIO1_IO05__GPIO1_IO5 0x00000014 /* FWE */
    + MX7D_PAD_LPSR_GPIO1_IO04__GPIO1_IO4 0x00000074 /* PDCTB */
    + MX7D_PAD_LPSR_GPIO1_IO01__GPIO1_IO1 0x00000034 /* WACOM INT */
    + /*MX7D_PAD_LPSR_GPIO1_IO06__GPIO1_IO6 0x00000014 /* WACOM PWR ENABLE */
    + /*MX7D_PAD_LPSR_GPIO1_IO00__GPIO1_IO0 0x00000074 /* WACOM RESET */
    + >;
    + };
    +};
    +
    &iomuxc {
    pinctrl_brcm_reg: brcmreggrp {
    fsl,pins = <
    @@ -125,6 +179,13 @@ MX7D_PAD_SAI1_TX_BCLK__GPIO6_IO13 0x14
    >;
    };

    + 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
    --
    2.31.1
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