arm64: dts: rockchip: add regulators for PCIe on RK3399 Puma Haikou

The PCIe PHY requires two regulators and are present on the SoM
directly, while the PCIe connector also exposes 3V3 and 12V power rails
which are available on the baseboard.

Considering that 3/4 regulators are always-on on HW level and that the
last one depends on a regulator from the PMIC that is specified as
always on, this commit should be purely cosmetic and no change in
behavior is expected.

Let's add all regulators for PCIe on RK3399 Puma Haikou.

Reviewed-by: Dragan Simic <dsimic@manjaro.org>
Signed-off-by: Quentin Schulz <quentin.schulz@theobroma-systems.com>
Link: https://lore.kernel.org/r/20240308-puma-diode-pu-v2-3-309f83da110a@theobroma-systems.com
Signed-off-by: Heiko Stuebner <heiko@sntech.de>

diff --git a/arch/arm64/boot/dts/rockchip/rk3399-puma-haikou.dts b/arch/arm64/boot/dts/rockchip/rk3399-puma-haikou.dts
index 2c3984a880af64ceaf3f7ec1a09ceee02f0dffeb..f6f15946579ebfc32925256e2569535be5a48f89 100644 (file)
--- a/arch/arm64/boot/dts/rockchip/rk3399-puma-haikou.dts
+++ b/arch/arm64/boot/dts/rockchip/rk3399-puma-haikou.dts
@@ -194,6 +194,8 @@
        num-lanes = <4>;
        pinctrl-names = "default";
        pinctrl-0 = <&pcie_clkreqn_cpm>;
+       vpcie3v3-supply = <&vcc3v3_baseboard>;
+       vpcie12v-supply = <&dc_12v>;
        status = "okay";
 };
 

diff --git a/arch/arm64/boot/dts/rockchip/rk3399-puma.dtsi b/arch/arm64/boot/dts/rockchip/rk3399-puma.dtsi
index 2484ad2bd86fcbbe9321f14f2ee10aebc7732c1b..ccbe3a7a1d2c2fd9c195a027976d2c076d4f7381 100644 (file)
--- a/arch/arm64/boot/dts/rockchip/rk3399-puma.dtsi
+++ b/arch/arm64/boot/dts/rockchip/rk3399-puma.dtsi
@@ -79,6 +79,26 @@
                regulator-max-microvolt = <5000000>;
        };
 
+       vcca_0v9: vcca-0v9-regulator {
+               compatible = "regulator-fixed";
+               regulator-name = "vcca_0v9";
+               regulator-always-on;
+               regulator-boot-on;
+               regulator-min-microvolt = <900000>;
+               regulator-max-microvolt = <900000>;
+               vin-supply = <&vcc_1v8>;
+       };
+
+       vcca_1v8: vcca-1v8-regulator {
+               compatible = "regulator-fixed";
+               regulator-name = "vcca_1v8";
+               regulator-always-on;
+               regulator-boot-on;
+               regulator-min-microvolt = <1800000>;
+               regulator-max-microvolt = <1800000>;
+               vin-supply = <&vcc3v3_sys>;
+       };
+
        vdd_log: vdd-log {
                compatible = "pwm-regulator";
                pwms = <&pwm2 0 25000 1>;
@@ -416,6 +436,12 @@
        gpio1830-supply = <&vcc_1v8>;
 };
 
+&pcie0 {
+       /* PCIe PHY supplies */
+       vpcie0v9-supply = <&vcca_0v9>;
+       vpcie1v8-supply = <&vcca_1v8>;
+};
+
 &pcie_clkreqn_cpm {
        rockchip,pins =
                <2 RK_PD2 RK_FUNC_GPIO &pcfg_pull_up>;