arm64: dts: rockchip: add rx0 mipi-phy for rk3399

It's a Designware MIPI D-PHY, used for ISP0 in rk3399.

Signed-off-by: Shunqian Zheng <zhengsq@rock-chips.com>
Signed-off-by: Jacob Chen <jacob2.chen@rock-chips.com>
[update for upstream]
Signed-off-by: Helen Koike <helen.koike@collabora.com>

Series-changes: 7
- add phy-cells

arch/arm64/boot/dts/rockchip/rk3399.dtsi

@@ -1388,6 +1388,17 @@
 			status = "disabled";
 		};
 
+		mipi_dphy_rx0: mipi-dphy-rx0 {
+			compatible = "rockchip,rk3399-mipi-dphy";
+			clocks = <&cru SCLK_MIPIDPHY_REF>,
+				<&cru SCLK_DPHY_RX0_CFG>,
+				<&cru PCLK_VIO_GRF>;
+			clock-names = "dphy-ref", "dphy-cfg", "grf";
+			power-domains = <&power RK3399_PD_VIO>;
+			#phy-cells = <0>;
+			status = "disabled";
+		};
+
 		u2phy0: usb2-phy@e450 {
 			compatible = "rockchip,rk3399-usb2phy";
 			reg = <0xe450 0x10>;