arm64: dts: rockchip: add HDMI audio on ROCK 4D

Much like the Sige5, the ROCK 4D also has an HDMI port, so is capable of
providing HDMI audio output as well.

Enable the SoC's hdmi_sound card, and also enable the SoC audio
controller (sai6) that feeds into it.

Signed-off-by: Nicolas Frattaroli <nicolas.frattaroli@collabora.com>
Tested-by: Cristian Ciocaltea <cristian.ciocaltea@collabora.com>
Link: https://lore.kernel.org/r/20250630-rock4d-audio-v1-4-0b3c8e8fda9c@collabora.com
Signed-off-by: Heiko Stuebner <heiko@sntech.de>

diff --git a/arch/arm64/boot/dts/rockchip/rk3576-rock-4d.dts b/arch/arm64/boot/dts/rockchip/rk3576-rock-4d.dts
index c2683c2a2f049c6d9d662a459a50ccf06ddb666c..9bc33422ced5017a7c7a9788919838fd72c9626e 100644 (file)
--- a/arch/arm64/boot/dts/rockchip/rk3576-rock-4d.dts
+++ b/arch/arm64/boot/dts/rockchip/rk3576-rock-4d.dts
@@ -304,6 +304,10 @@
        };
 };
 
+&hdmi_sound {
+       status = "okay";
+};
+
 &hdptxphy {
        status = "okay";
 };
@@ -752,6 +756,10 @@
        };
 };
 
+&sai6 {
+       status = "okay";
+};
+
 &sdmmc {
        bus-width = <4>;
        cap-mmc-highspeed;