Use the simple-audio-card driver with the hdmi0 QP node as CODEC and
the i2s5 device as CPU.

The simple-audio-card,mclk-fs value is set to 128 as it is done in
the downstream driver.

The #sound-dai-cells value is set to 0 in the hdmi0 node so that it can be
used as an audio codec node.

Signed-off-by: Detlev Casanova <detlev.casan...@collabora.com>
---
 arch/arm64/boot/dts/rockchip/rk3588-base.dtsi | 17 +++++++++++++++++
 1 file changed, 17 insertions(+)

diff --git a/arch/arm64/boot/dts/rockchip/rk3588-base.dtsi 
b/arch/arm64/boot/dts/rockchip/rk3588-base.dtsi
index 8cfa30837ce72..767bdfc06b7ec 100644
--- a/arch/arm64/boot/dts/rockchip/rk3588-base.dtsi
+++ b/arch/arm64/boot/dts/rockchip/rk3588-base.dtsi
@@ -1369,6 +1369,22 @@ i2s9_8ch: i2s@fddfc000 {
                status = "disabled";
        };
 
+       hdmi0_sound: hdmi0-sound {
+               compatible = "simple-audio-card";
+               simple-audio-card,format = "i2s";
+               simple-audio-card,mclk-fs = <128>;
+               simple-audio-card,name = "hdmi0";
+               status = "disabled";
+
+               simple-audio-card,codec {
+                       sound-dai = <&hdmi0>;
+               };
+
+               simple-audio-card,cpu {
+                       sound-dai = <&i2s5_8ch>;
+               };
+       };
+
        hdmi0: hdmi@fde80000 {
                compatible = "rockchip,rk3588-dw-hdmi-qp";
                reg = <0x0 0xfde80000 0x0 0x20000>;
@@ -1394,6 +1410,7 @@ hdmi0: hdmi@fde80000 {
                reset-names = "ref", "hdp";
                rockchip,grf = <&sys_grf>;
                rockchip,vo-grf = <&vo1_grf>;
+               #sound-dai-cells = <0>;
                status = "disabled";
 
                ports {
-- 
2.48.1

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