[PATCH V4 4/9] arm64: tegra: Add regulators required for PCIe

Vidya Sagar
2022-07-07T08:14:21Z

Add regulator supplies required for PCIe functionality. The supplies
include 1.8V, 3.3V and 12V.

Signed-off-by: Vidya Sagar <vidyas@nvidia.com>
---
V4:
* Addressed review comments from Krzysztof
* Moved all regulator definitions to tegra234-p3701-0000.dtsi file

V3:
* New patch in this series

.../boot/dts/nvidia/tegra234-p3701-0000.dtsi | 36 +++++++++++++++++++
1 file changed, 36 insertions(+)

diff --git a/arch/arm64/boot/dts/nvidia/tegra234-p3701-0000.dtsi b/arch/arm64/boot/dts/nvidia/tegra234-p3701-0000.dtsi
index 798de9226ba5..9e4d72cfa69f 100644
--- a/arch/arm64/boot/dts/nvidia/tegra234-p3701-0000.dtsi
+++ b/arch/arm64/boot/dts/nvidia/tegra234-p3701-0000.dtsi
@@ -6,6 +6,42 @@
model = "NVIDIA Jetson AGX Orin";
compatible = "nvidia,p3701-0000", "nvidia,tegra234";

+ vdd_1v8_ls: regulator-vdd-1v8-ls {
+ compatible = "regulator-fixed";
+ regulator-name = "VDD_1V8_LS";
+ regulator-min-microvolt = <1800000>;
+ regulator-max-microvolt = <1800000>;
+ regulator-always-on;
+ };
+
+ vdd_1v8_ao: regulator-vdd-1v8-ao {
+ compatible = "regulator-fixed";
+ regulator-name = "VDD_1V8_AO";
+ regulator-min-microvolt = <1800000>;
+ regulator-max-microvolt = <1800000>;
+ regulator-always-on;
+ };
+
+ vdd_3v3_pcie: regulator-vdd-3v3-pcie {
+ compatible = "regulator-fixed";
+ regulator-name = "VDD_3V3_PCIE";
+ regulator-min-microvolt = <3300000>;
+ regulator-max-microvolt = <3300000>;
+ gpio = <&gpio TEGRA234_MAIN_GPIO(Z, 2) GPIO_ACTIVE_HIGH>;
+ regulator-boot-on;
+ enable-active-high;
+ };
+
+ vdd_12v_pcie: regulator-vdd-12v-pcie {
+ compatible = "regulator-fixed";
+ regulator-name = "VDD_12V_PCIE";
+ regulator-min-microvolt = <12000000>;
+ regulator-max-microvolt = <12000000>;
+ gpio = <&gpio TEGRA234_MAIN_GPIO(A, 1) GPIO_ACTIVE_LOW>;
+ regulator-boot-on;
+ enable-active-low;
+ };
+
bus@0 {
spi@3270000 {
status = "okay";
--
2.17.1