From: Andy Yan <andy....@rock-chips.com>

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....@rock-chips.com>
---

(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

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