arm64: dts: rockchip: Add DisplayPort dt node for rk3576

The DisplayPort on rk3576 is compliant with DisplayPort Specification
Version 1.4 with MST support, and share the USBDP combo PHY with USB 3.1
OTG0 controller.

Signed-off-by: Andy Yan <andy.yan@rock-chips.com>
Reviewed-by: Sebastian Reichel <sebastian.reichel@collabora.com>
Tested-by: Sebastian Reichel <sebastian.reichel@collabora.com>
Link: https://patch.msgid.link/20260206010421.443605-6-andyshrk@163.com
Signed-off-by: Heiko Stuebner <heiko@sntech.de>

diff --git a/arch/arm64/boot/dts/rockchip/rk3576.dtsi b/arch/arm64/boot/dts/rockchip/rk3576.dtsi
index 49ccdf12ef7eb4e67bd1f04250ec92ad95f7dc6f..53ff6bd027af88c45a48a8e543d838d4b9b27dff 100644 (file)
--- a/arch/arm64/boot/dts/rockchip/rk3576.dtsi
+++ b/arch/arm64/boot/dts/rockchip/rk3576.dtsi
@@ -1483,6 +1483,34 @@
                        };
                };
 
+               dp: dp@27e40000 {
+                       compatible = "rockchip,rk3576-dp";
+                       reg = <0x0 0x27e40000 0x0 0x30000>;
+                       interrupts = <GIC_SPI 337 IRQ_TYPE_LEVEL_HIGH>;
+                       assigned-clocks = <&cru CLK_AUX16MHZ_0>;
+                       assigned-clock-rates = <16000000>;
+                       clocks = <&cru PCLK_DP0>, <&cru CLK_AUX16MHZ_0>,
+                                <&cru ACLK_DP0>;
+                       clock-names = "apb", "aux", "hdcp";
+                       resets = <&cru SRST_DP0>;
+                       phys = <&usbdp_phy PHY_TYPE_DP>;
+                       power-domains = <&power RK3576_PD_VO1>;
+                       status = "disabled";
+
+                       ports {
+                               #address-cells = <1>;
+                               #size-cells = <0>;
+
+                               dp0_in: port@0 {
+                                       reg = <0>;
+                               };
+
+                               dp0_out: port@1 {
+                                       reg = <1>;
+                               };
+                       };
+               };
+
                sai7: sai@27ed0000 {
                        compatible = "rockchip,rk3576-sai";
                        reg = <0x0 0x27ed0000 0x0 0x1000>;