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: Thierry Reding <treding@nvidia.com>

diff --git a/arch/arm64/boot/dts/nvidia/tegra210-p2180.dtsi b/arch/arm64/boot/dts/nvidia/tegra210-p2180.dtsi
index 316c92c..8335bbe 100644 (file)
--- a/arch/arm64/boot/dts/nvidia/tegra210-p2180.dtsi
+++ b/arch/arm64/boot/dts/nvidia/tegra210-p2180.dtsi
@@ -1,3 +1,5 @@
+#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;
        };

diff --git a/arch/arm64/boot/dts/nvidia/tegra210-p2597.dtsi b/arch/arm64/boot/dts/nvidia/tegra210-p2597.dtsi
index a2480c0..27bb835 100644 (file)
--- a/arch/arm64/boot/dts/nvidia/tegra210-p2597.dtsi
+++ b/arch/arm64/boot/dts/nvidia/tegra210-p2597.dtsi
@@ -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";