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    Subject[PATCH 09/12] arm64: dts: meson: add audio playback to rbox-pro
    Date
    Add initial support limited to HDMI i2s and SPDIF (LPCM).

    Signed-off-by: Christian Hewitt <christianshewitt@gmail.com>
    ---
    .../boot/dts/amlogic/meson-gxm-rbox-pro.dts | 80 +++++++++++++++++++
    1 file changed, 80 insertions(+)

    diff --git a/arch/arm64/boot/dts/amlogic/meson-gxm-rbox-pro.dts b/arch/arm64/boot/dts/amlogic/meson-gxm-rbox-pro.dts
    index c89c9f846fb1..7b23b3da27ff 100644
    --- a/arch/arm64/boot/dts/amlogic/meson-gxm-rbox-pro.dts
    +++ b/arch/arm64/boot/dts/amlogic/meson-gxm-rbox-pro.dts
    @@ -14,6 +14,7 @@
    /dts-v1/;

    #include "meson-gxm.dtsi"
    +#include <dt-bindings/sound/meson-aiu.h>

    / {
    compatible = "kingnovel,r-box-pro", "amlogic,s912", "amlogic,meson-gxm";
    @@ -33,6 +34,13 @@
    reg = <0x0 0x0 0x0 0x80000000>; /* 2 GiB or 3 GiB */
    };

    + spdif_dit: audio-codec-0 {
    + #sound-dai-cells = <0>;
    + compatible = "linux,spdif-dit";
    + status = "okay";
    + sound-name-prefix = "DIT";
    + };
    +
    leds {
    compatible = "gpio-leds";

    @@ -51,6 +59,25 @@
    };
    };

    + vddio_ao18: regulator-vddio_ao18 {
    + compatible = "regulator-fixed";
    + regulator-name = "VDDIO_AO18";
    + regulator-min-microvolt = <1800000>;
    + regulator-max-microvolt = <1800000>;
    + };
    +
    + hdmi_5v: regulator-hdmi-5v {
    + compatible = "regulator-fixed";
    +
    + regulator-name = "HDMI_5V";
    + regulator-min-microvolt = <5000000>;
    + regulator-max-microvolt = <5000000>;
    +
    + gpio = <&gpio GPIOH_3 GPIO_ACTIVE_HIGH>;
    + enable-active-high;
    + regulator-always-on;
    + };
    +
    vddio_boot: regulator-vddio-boot {
    compatible = "regulator-fixed";
    regulator-name = "VDDIO_BOOT";
    @@ -90,6 +117,59 @@
    clocks = <&wifi32k>;
    clock-names = "ext_clock";
    };
    +
    + sound {
    + compatible = "amlogic,gx-sound-card";
    + model = "GXM-RBOX-PRO";
    + assigned-clocks = <&clkc CLKID_MPLL0>,
    + <&clkc CLKID_MPLL1>,
    + <&clkc CLKID_MPLL2>;
    + assigned-clock-parents = <0>, <0>, <0>;
    + assigned-clock-rates = <294912000>,
    + <270950400>,
    + <393216000>;
    + status = "okay";
    +
    + dai-link-0 {
    + sound-dai = <&aiu AIU_CPU CPU_I2S_FIFO>;
    + };
    +
    + dai-link-1 {
    + sound-dai = <&aiu AIU_CPU CPU_SPDIF_FIFO>;
    + };
    +
    + dai-link-2 {
    + sound-dai = <&aiu AIU_CPU CPU_I2S_ENCODER>;
    + dai-format = "i2s";
    + mclk-fs = <256>;
    +
    + codec-0 {
    + sound-dai = <&aiu AIU_HDMI CTRL_I2S>;
    + };
    + };
    +
    + dai-link-3 {
    + sound-dai = <&aiu AIU_CPU CPU_SPDIF_ENCODER>;
    +
    + codec-0 {
    + sound-dai = <&spdif_dit>;
    + };
    + };
    +
    + dai-link-4 {
    + sound-dai = <&aiu AIU_HDMI CTRL_OUT>;
    +
    + codec-0 {
    + sound-dai = <&hdmi_tx>;
    + };
    + };
    + };
    +};
    +
    +&aiu {
    + status = "okay";
    + pinctrl-0 = <&spdif_out_h_pins>;
    + pinctrl-names = "default";
    };

    &ethmac {
    --
    2.17.1
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