arm64: dts: rockchip: Add regulators for PCIe for Radxa Rock Pi 4 board

Add 0.9V and 1.8V voltage regulators for Radxa Rock Pi 4 board PCIe.

Signed-off-by: Matwey V. Kornilov <matwey@sai.msu.ru>
Link: https://lore.kernel.org/r/20191120161302.5157-1-matwey@sai.msu.ru
Signed-off-by: Heiko Stuebner <heiko@sntech.de>

diff --git a/arch/arm64/boot/dts/rockchip/rk3399-rock-pi-4.dts b/arch/arm64/boot/dts/rockchip/rk3399-rock-pi-4.dts
index 45b6c0e..3923ec0 100644 (file)
--- a/arch/arm64/boot/dts/rockchip/rk3399-rock-pi-4.dts
+++ b/arch/arm64/boot/dts/rockchip/rk3399-rock-pi-4.dts
@@ -53,6 +53,16 @@
                vin-supply = <&vcc12v_dcin>;
        };
 
+       vcc_0v9: vcc-0v9 {
+               compatible = "regulator-fixed";
+               regulator-name = "vcc_0v9";
+               regulator-always-on;
+               regulator-boot-on;
+               regulator-min-microvolt = <900000>;
+               regulator-max-microvolt = <900000>;
+               vin-supply = <&vcc3v3_sys>;
+       };
+
        vcc3v3_pcie: vcc3v3-pcie-regulator {
                compatible = "regulator-fixed";
                enable-active-high;
@@ -473,6 +483,8 @@
        num-lanes = <4>;
        pinctrl-0 = <&pcie_clkreqnb_cpm>;
        pinctrl-names = "default";
+       vpcie0v9-supply = <&vcc_0v9>;
+       vpcie1v8-supply = <&vcc_1v8>;
        vpcie3v3-supply = <&vcc3v3_pcie>;
        status = "okay";
 };