[PATCH 4/4] arm64: dts: rockchip: add HDMI audio on ROCK 4D

Nicolas Frattaroli
2025-06-30T10:20:07Z

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>
---
arch/arm64/boot/dts/rockchip/rk3576-rock-4d.dts | 8 ++++++++
1 file changed, 8 insertions(+)

diff --git a/arch/arm64/boot/dts/rockchip/rk3576-rock-4d.dts b/arch/arm64/boot/dts/rockchip/rk3576-rock-4d.dts
index 4d4b8ababd2436b82515443b029916b3c786dba1..70bc6f909ec0843607c2705ee9f73b0ba521a977 100644
--- a/arch/arm64/boot/dts/rockchip/rk3576-rock-4d.dts
+++ b/arch/arm64/boot/dts/rockchip/rk3576-rock-4d.dts
@@ -322,6 +322,10 @@ hdmi_out_con: endpoint {
};
};

+&hdmi_sound {
+ status = "okay";
+};
+
&hdptxphy {
status = "okay";
};
@@ -772,6 +776,10 @@ &sai1m0_sdi0
status = "okay";
};

+&sai6 {
+ status = "okay";
+};
+
&saradc {
vref-supply = <&vcca1v8_pldo2_s0>;
status = "okay";

--
2.50.0