diff --git a/patches/board/pinebook-pro/0002-arm64-dts-rk3399-pinebook-pro-enable-hdmi-sound.patch b/patches/board/pinebook-pro/0002-arm64-dts-rk3399-pinebook-pro-enable-hdmi-sound.patch
new file mode 100644
index 0000000..f64a66b
--- /dev/null
+++ b/patches/board/pinebook-pro/0002-arm64-dts-rk3399-pinebook-pro-enable-hdmi-sound.patch
@@ -0,0 +1,30 @@
+From: Markus Fritsche <mfritsche@reauktion.de>
+Subject: [PATCH] arm64: dts: rockchip: rk3399-pinebook-pro: enable hdmi_sound
+
+The Pinebook Pro routes HDMI audio through the rk3399 HDMI block; the audio
+path is otherwise functional but the simple-audio-card binding is left
+disabled by default in the inherited DTSI. Flip status to "okay" so HDMI
+displays expose an ALSA sink.
+
+scope: board/pinebook-pro
+fleet: fresnel
+
+Signed-off-by: Markus Fritsche <mfritsche@reauktion.de>
+---
+ arch/arm64/boot/dts/rockchip/rk3399-pinebook-pro.dts | 4 ++++
+ 1 file changed, 4 insertions(+)
+
+diff --git a/arch/arm64/boot/dts/rockchip/rk3399-pinebook-pro.dts b/arch/arm64/boot/dts/rockchip/rk3399-pinebook-pro.dts
+--- a/arch/arm64/boot/dts/rockchip/rk3399-pinebook-pro.dts
++++ b/arch/arm64/boot/dts/rockchip/rk3399-pinebook-pro.dts
+@@ -421,6 +499,10 @@
+ 	status = "okay";
+ };
+
++&hdmi_sound {
++	status = "okay";
++};
++
+ &i2c0 {
+ 	clock-frequency = <400000>;
+ 	i2c-scl-falling-time-ns = <4>;