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Commit 77934269 authored by Thierry Reding's avatar Thierry Reding
Browse files

arm64: tegra: Add PMIC support on Jetson TX1 



Add a device tree node for the MAX77620 PMIC found on the p2180
processor module (Jetson TX1). Also add supporting power supplies,
such as the main 5 V system supply.

Signed-off-by: default avatarThierry Reding <treding@nvidia.com>
parent 1a695a90

arch/arm64/boot/dts/nvidia/tegra210-p2180.dtsi

+245 −0
Original line number Diff line number Diff line 
#include <dt-bindings/mfd/max77620.h>



#include "tegra210.dtsi"



/ {
@@ -5,6 +7,7 @@ 
	compatible = "nvidia,p2180", "nvidia,tegra210";



	aliases {

		rtc0 = "/i2c@7000d000/pmic@3c";

		rtc1 = "/rtc@7000e000";

		serial0 = &uarta;

	};
@@ -19,6 +22,248 @@ 
		status = "okay";

	};



	i2c@7000d000 {

		status = "okay";

		clock-frequency = <400000>;



		pmic: pmic@3c {

			compatible = "maxim,max77620";

			reg = <0x3c>;

			interrupts = <GIC_SPI 86 IRQ_TYPE_LEVEL_HIGH>;



			#interrupt-cells = <2>;

			interrupt-controller;



			#gpio-cells = <2>;

			gpio-controller;



			pinctrl-names = "default";

			pinctrl-0 = <&max77620_default>;



			max77620_default: pinmux {

				gpio0 {

					pins = "gpio0";

					function = "gpio";

				};



				gpio1 {

					pins = "gpio1";

					function = "fps-out";

					drive-push-pull = <1>;

					maxim,active-fps-source = <MAX77620_FPS_SRC_0>;

					maxim,active-fps-power-up-slot = <7>;

					maxim,active-fps-power-down-slot = <0>;

				};



				gpio2_3 {

					pins = "gpio2", "gpio3";

					function = "fps-out";

					drive-open-drain = <1>;

					maxim,active-fps-source = <MAX77620_FPS_SRC_0>;

				};



				gpio4 {

					pins = "gpio4";

					function = "32k-out1";

				};



				gpio5_6_7 {

					pins = "gpio5", "gpio6", "gpio7";

					function = "gpio";

					drive-push-pull = <1>;

				};

			};



			fps {

				fps0 {

					maxim,fps-event-source = <MAX77620_FPS_EVENT_SRC_EN0>;

					maxim,suspend-fps-time-period-us = <1280>;

				};



				fps1 {

					maxim,fps-event-source = <MAX77620_FPS_EVENT_SRC_EN1>;

					maxim,suspend-fps-time-period-us = <1280>;

				};



				fps2 {

					maxim,fps-event-source = <MAX77620_FPS_EVENT_SRC_EN0>;

				};

			};



			regulators {

				in-ldo0-1-supply = <&vdd_pre>;

				in-ldo7-8-supply = <&vdd_pre>;

				in-sd3-supply = <&vdd_5v0_sys>;



				vdd_soc: sd0 {

					regulator-name = "VDD_SOC";

					regulator-min-microvolt = <600000>;

					regulator-max-microvolt = <1400000>;

					regulator-always-on;

					regulator-boot-on;



					regulator-enable-ramp-delay = <146>;

					regulator-ramp-delay = <27500>;



					maxim,active-fps-source = <MAX77620_FPS_SRC_1>;

				};



				vdd_ddr: sd1 {

					regulator-name = "VDD_DDR_1V1_PMIC";

					regulator-always-on;

					regulator-boot-on;



					regulator-enable-ramp-delay = <130>;

					regulator-ramp-delay = <27500>;



					maxim,active-fps-source = <MAX77620_FPS_SRC_0>;

				};



				vdd_pre: sd2 {

					regulator-name = "VDD_PRE_REG_1V35";

					regulator-min-microvolt = <1350000>;

					regulator-max-microvolt = <1350000>;



					regulator-enable-ramp-delay = <176>;

					regulator-ramp-delay = <27500>;



					maxim,active-fps-source = <MAX77620_FPS_SRC_1>;

				};



				vdd_1v8: sd3 {

					regulator-name = "VDD_1V8";

					regulator-min-microvolt = <1800000>;

					regulator-max-microvolt = <1800000>;

					regulator-always-on;

					regulator-boot-on;



					regulator-enable-ramp-delay = <242>;

					regulator-ramp-delay = <27500>;



					maxim,active-fps-source = <MAX77620_FPS_SRC_0>;

				};



				vdd_sys_1v2: ldo0 {

					regulator-name = "AVDD_SYS_1V2";

					regulator-min-microvolt = <1200000>;

					regulator-max-microvolt = <1200000>;

					regulator-always-on;

					regulator-boot-on;



					regulator-enable-ramp-delay = <26>;

					regulator-ramp-delay = <100000>;



					maxim,active-fps-source = <MAX77620_FPS_SRC_NONE>;

				};



				vdd_pex_1v05: ldo1 {

					regulator-name = "VDD_PEX_1V05";

					regulator-min-microvolt = <1050000>;

					regulator-max-microvolt = <1050000>;



					regulator-enable-ramp-delay = <22>;

					regulator-ramp-delay = <100000>;



					maxim,active-fps-source = <MAX77620_FPS_SRC_1>;

				};



				vddio_sdmmc: ldo2 {

					regulator-name = "VDDIO_SDMMC";

					/*

					 * Technically this supply should have

					 * a supported range from 1.8 - 3.3 V.

					 * However, that would cause the SDHCI

					 * driver to request 2.7 V upon access

					 * and that in turn will cause traffic

					 * to be broken. Leave it at 3.3 V for

					 * now.

					 */

					regulator-min-microvolt = <3300000>;

					regulator-max-microvolt = <3300000>;

					regulator-always-on;

					regulator-boot-on;



					regulator-enable-ramp-delay = <62>;

					regulator-ramp-delay = <100000>;



					maxim,active-fps-source = <MAX77620_FPS_SRC_NONE>;

				};



				vdd_cam_hv: ldo3 {

					regulator-name = "VDD_CAM_HV";

					regulator-min-microvolt = <2800000>;

					regulator-max-microvolt = <2800000>;



					regulator-enable-ramp-delay = <50>;

					regulator-ramp-delay = <100000>;



					maxim,active-fps-source = <MAX77620_FPS_SRC_NONE>;

				};



				vdd_rtc: ldo4 {

					regulator-name = "VDD_RTC";

					regulator-min-microvolt = <850000>;

					regulator-max-microvolt = <850000>;

					regulator-always-on;

					regulator-boot-on;



					regulator-enable-ramp-delay = <22>;

					regulator-ramp-delay = <100000>;



					maxim,active-fps-source = <MAX77620_FPS_SRC_0>;

				};



				vdd_ts_hv: ldo5 {

					regulator-name = "VDD_TS_HV";

					regulator-min-microvolt = <3300000>;

					regulator-max-microvolt = <3300000>;



					regulator-enable-ramp-delay = <62>;

					regulator-ramp-delay = <100000>;



					maxim,active-fps-source = <MAX77620_FPS_SRC_NONE>;

				};



				vdd_ts: ldo6 {

					regulator-name = "VDD_TS_1V8";

					regulator-min-microvolt = <1800000>;

					regulator-max-microvolt = <1800000>;



					regulator-enable-ramp-delay = <36>;

					regulator-ramp-delay = <100000>;



					maxim,active-fps-source = <MAX77620_FPS_SRC_0>;

					maxim,active-fps-power-up-slot = <7>;

					maxim,active-fps-power-down-slot = <0>;

				};



				avdd_1v05_pll: ldo7 {

					regulator-name = "AVDD_1V05_PLL";

					regulator-min-microvolt = <1050000>;

					regulator-max-microvolt = <1050000>;

					regulator-always-on;

					regulator-boot-on;



					regulator-enable-ramp-delay = <24>;

					regulator-ramp-delay = <100000>;



					maxim,active-fps-source = <MAX77620_FPS_SRC_1>;

				};



				avdd_1v05: ldo8 {

					regulator-name = "AVDD_SATA_HDMI_DP_1V05";

					regulator-min-microvolt = <1050000>;

					regulator-max-microvolt = <1050000>;



					regulator-enable-ramp-delay = <22>;

					regulator-ramp-delay = <100000>;



					maxim,active-fps-source = <MAX77620_FPS_SRC_1>;

				};

			};

		};

	};



	pmc@7000e400 {

		nvidia,invert-interrupt;

	};

arch/arm64/boot/dts/nvidia/tegra210-p2597.dtsi

+55 −0
Original line number Diff line number Diff line
@@ -1270,6 +1270,61 @@ 
		cd-gpios = <&gpio TEGRA_GPIO(Z, 1) GPIO_ACTIVE_LOW>;

	};



	regulators {

		compatible = "simple-bus";

		#address-cells = <1>;

		#size-cells = <0>;



		vdd_sys_mux: regulator@0 {

			compatible = "regulator-fixed";

			reg = <0>;

			regulator-name = "VDD_SYS_MUX";

			regulator-min-microvolt = <5000000>;

			regulator-max-microvolt = <5000000>;

			regulator-always-on;

			regulator-boot-on;

		};



		vdd_5v0_sys: regulator@1 {

			compatible = "regulator-fixed";

			reg = <1>;

			regulator-name = "VDD_5V0_SYS";

			regulator-min-microvolt = <5000000>;

			regulator-max-microvolt = <5000000>;

			regulator-always-on;

			regulator-boot-on;

			gpio = <&pmic 1 GPIO_ACTIVE_HIGH>;

			enable-active-high;

			vin-supply = <&vdd_sys_mux>;

		};



		vdd_3v3_sys: regulator@2 {

			compatible = "regulator-fixed";

			reg = <2>;

			regulator-name = "VDD_3V3_SYS";

			regulator-min-microvolt = <3300000>;

			regulator-max-microvolt = <3300000>;

			regulator-always-on;

			regulator-boot-on;

			gpio = <&pmic 3 GPIO_ACTIVE_HIGH>;

			enable-active-high;

			vin-supply = <&vdd_sys_mux>;



			regulator-enable-ramp-delay = <160>;

			regulator-disable-ramp-delay = <10000>;

		};



		vdd_5v0_io: regulator@3 {

			compatible = "regulator-fixed";

			reg = <3>;

			regulator-name = "VDD_5V0_IO_SYS";

			regulator-min-microvolt = <5000000>;

			regulator-max-microvolt = <5000000>;

			regulator-always-on;

			regulator-boot-on;

		};

	};



	gpio-keys {

		compatible = "gpio-keys";

		label = "gpio-keys";