[PATCH v2 7/7] arm64: dts: rockchip: Enable DP2HDMI for ROCK 5 ITX

From: Andy Yan
Date: Wed Mar 12 2025 - 06:43:30 EST


From: Andy Yan <andy.yan@xxxxxxxxxxxxxx>

The HDMI Port next to Headphone Jack is drived by
DP1 on rk3588 via a dp2hdmi converter.

Add related dt nodes to enable it.

Note: ROCKCHIP_VOP2_EP_DP1 is defined as 11 in dt-binding header,
but it will trigger a dtc warning like "graph node unit address
error, expected "b"" if we use it directly after endpoint, so we
use "b" instead here.

Signed-off-by: Andy Yan <andy.yan@xxxxxxxxxxxxxx>
---

(no changes since v1)

.../boot/dts/rockchip/rk3588-rock-5-itx.dts | 37 +++++++++++++++++++
1 file changed, 37 insertions(+)

diff --git a/arch/arm64/boot/dts/rockchip/rk3588-rock-5-itx.dts b/arch/arm64/boot/dts/rockchip/rk3588-rock-5-itx.dts
index 67b886329248..29f10ec9f0c1 100644
--- a/arch/arm64/boot/dts/rockchip/rk3588-rock-5-itx.dts
+++ b/arch/arm64/boot/dts/rockchip/rk3588-rock-5-itx.dts
@@ -57,6 +57,18 @@ analog-sound {
"Headphone", "Headphones";
};

+ dp-con {
+ compatible = "dp-connector";
+ label = "DP OUT";
+ type = "full-size";
+
+ port {
+ dp_con_in: endpoint {
+ remote-endpoint = <&dp1_out_con>;
+ };
+ };
+ };
+
gpio-leds {
compatible = "gpio-leds";
pinctrl-names = "default";
@@ -268,6 +280,24 @@ &cpu_l3 {
cpu-supply = <&vdd_cpu_lit_s0>;
};

+&dp1 {
+ status = "okay";
+ pinctrl-names = "default";
+ pinctrl-0 = <&dp1m0_pins>;
+};
+
+&dp1_in {
+ dp1_in_vp2: endpoint {
+ remote-endpoint = <&vp2_out_dp1>;
+ };
+};
+
+&dp1_out {
+ dp1_out_con: endpoint {
+ remote-endpoint = <&dp_con_in>;
+ };
+};
+
&gpu {
mali-supply = <&vdd_gpu_s0>;
status = "okay";
@@ -1262,3 +1292,10 @@ vp1_out_hdmi1: endpoint@ROCKCHIP_VOP2_EP_HDMI1 {
remote-endpoint = <&hdmi1_in_vp1>;
};
};
+
+&vp2 {
+ vp2_out_dp1: endpoint@b {
+ reg = <ROCKCHIP_VOP2_EP_DP1>;
+ remote-endpoint = <&dp1_in_vp2>;
+ };
+};
--
2.34.1