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    Subject[PATCH RFC 3/4] arm64: dts: apple: t8103: Add touchbar bindings
    From: Sasha Finkelstein <fnkl.kernel@gmail.com>

    Adds device tree entries for the touchbar digitizer

    Signed-off-by: Sasha Finkelstein <fnkl.kernel@gmail.com>
    ---
    arch/arm64/boot/dts/apple/t8103-j293.dts | 20 ++++++++++++++++++++
    arch/arm64/boot/dts/apple/t8103.dtsi | 12 ++++++++++++
    2 files changed, 32 insertions(+)

    diff --git a/arch/arm64/boot/dts/apple/t8103-j293.dts b/arch/arm64/boot/dts/apple/t8103-j293.dts
    index 151074109a11..c369493b1c06 100644
    --- a/arch/arm64/boot/dts/apple/t8103-j293.dts
    +++ b/arch/arm64/boot/dts/apple/t8103-j293.dts
    @@ -15,6 +15,9 @@
    / {
    compatible = "apple,j293", "apple,t8103", "apple,arm-platform";
    model = "Apple MacBook Pro (13-inch, M1, 2020)";
    + aliases {
    + touchbar0 = &touchbar0;
    + };
    };

    &bluetooth0 {
    @@ -25,6 +28,23 @@ &wifi0 {
    brcm,board-type = "apple,honshu";
    };

    +&spi0 {
    + status = "okay";
    +
    + touchbar0: touchbar@0 {
    + compatible = "apple,z2-touchscreen";
    + reg = <0>;
    + spi-max-frequency = <11500000>;
    + reset-gpios = <&pinctrl_ap 139 0>;
    + cs-gpios = <&pinctrl_ap 109 0>;
    + interrupts-extended = <&pinctrl_ap 194 IRQ_TYPE_EDGE_FALLING>;
    + firmware-name = "apple/dfrmtfw-j293.bin";
    + touchscreen-size-x = <23045>;
    + touchscreen-size-y = <640>;
    + apple,z2-device-name = "MacBookPro17,1 Touch Bar";
    + };
    +};
    +
    /*
    * Remove unused PCIe ports and disable the associated DARTs.
    */
    diff --git a/arch/arm64/boot/dts/apple/t8103.dtsi b/arch/arm64/boot/dts/apple/t8103.dtsi
    index 9859219699f4..70d3183f72bf 100644
    --- a/arch/arm64/boot/dts/apple/t8103.dtsi
    +++ b/arch/arm64/boot/dts/apple/t8103.dtsi
    @@ -432,6 +432,18 @@ i2c4: i2c@235020000 {
    status = "disabled"; /* only used in J293 */
    };

    + spi0: spi@235100000 {
    + compatible = "apple,t8103-spi", "apple,spi";
    + reg = <0x2 0x35100000 0x0 0x4000>;
    + interrupt-parent = <&aic>;
    + interrupts = <AIC_IRQ 614 IRQ_TYPE_LEVEL_HIGH>;
    + clocks = <&clk_200m>;
    + power-domains = <&ps_spi0>;
    + #address-cells = <1>;
    + #size-cells = <0>;
    + status = "disabled"; /* only used in J293 */
    + };
    +
    serial0: serial@235200000 {
    compatible = "apple,s5l-uart";
    reg = <0x2 0x35200000 0x0 0x1000>;
    --
    Git-137.1)

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