ARM: dt: tegra: ventana: add regulators

Ventana uses a TPS6586x regulator. Instantiate this, and hook up a
couple of fixed GPIO-controlled regulators too.

The data was chosen to match the PMIC HW defaults, with the following
exception:

ldo6: The HW default is 2.85v. The schematics are unlabelled. Internal
research indicates that 1.8v is correct. Our downstream kernel also uses
1.8v.

Portions based on work by Laxman Dewangan <ldewangan@nvidia.com>

Signed-off-by: Stephen Warren <swarren@nvidia.com>

1 files changed, 204 insertions, 0 deletions

diff --git a/arch/arm/boot/dts/tegra20-ventana.dts b/arch/arm/boot/dts/tegra20-ventana.dts
index be90544e6b59..4ec6b4cd9d52 100644
--- a/arch/arm/boot/dts/tegra20-ventana.dts
+++ b/arch/arm/boot/dts/tegra20-ventana.dts
@@ -289,6 +289,156 @@
         i2c@7000d000 {
                 status = "okay";
                 clock-frequency = <400000>;
+
+                pmic: tps6586x@34 {
+                        compatible = "ti,tps6586x";
+                        reg = <0x34>;
+                        interrupts = <0 86 0x4>;
+
+                        #gpio-cells = <2>;
+                        gpio-controller;
+
+                        sys-supply = <&vdd_5v0_reg>;
+                        vin-sm0-supply = <&sys_reg>;
+                        vin-sm1-supply = <&sys_reg>;
+                        vin-sm2-supply = <&sys_reg>;
+                        vinldo01-supply = <&sm2_reg>;
+                        vinldo23-supply = <&sm2_reg>;
+                        vinldo4-supply = <&sm2_reg>;
+                        vinldo678-supply = <&sm2_reg>;
+                        vinldo9-supply = <&sm2_reg>;
+
+                        regulators {
+                                #address-cells = <1>;
+                                #size-cells = <0>;
+
+                                sys_reg: regulator@0 {
+                                        reg = <0>;
+                                        regulator-compatible = "sys";
+                                        regulator-name = "vdd_sys";
+                                        regulator-always-on;
+                                };
+
+                                regulator@1 {
+                                        reg = <1>;
+                                        regulator-compatible = "sm0";
+                                        regulator-name = "vdd_sm0,vdd_core";
+                                        regulator-min-microvolt = <1200000>;
+                                        regulator-max-microvolt = <1200000>;
+                                        regulator-always-on;
+                                };
+
+                                regulator@2 {
+                                        reg = <2>;
+                                        regulator-compatible = "sm1";
+                                        regulator-name = "vdd_sm1,vdd_cpu";
+                                        regulator-min-microvolt = <1000000>;
+                                        regulator-max-microvolt = <1000000>;
+                                        regulator-always-on;
+                                };
+
+                                sm2_reg: regulator@3 {
+                                        reg = <3>;
+                                        regulator-compatible = "sm2";
+                                        regulator-name = "vdd_sm2,vin_ldo*";
+                                        regulator-min-microvolt = <3700000>;
+                                        regulator-max-microvolt = <3700000>;
+                                        regulator-always-on;
+                                };
+
+                                /* LDO0 is not connected to anything */
+
+                                regulator@5 {
+                                        reg = <5>;
+                                        regulator-compatible = "ldo1";
+                                        regulator-name = "vdd_ldo1,avdd_pll*";
+                                        regulator-min-microvolt = <1100000>;
+                                        regulator-max-microvolt = <1100000>;
+                                        regulator-always-on;
+                                };
+
+                                regulator@6 {
+                                        reg = <6>;
+                                        regulator-compatible = "ldo2";
+                                        regulator-name = "vdd_ldo2,vdd_rtc";
+                                        regulator-min-microvolt = <1200000>;
+                                        regulator-max-microvolt = <1200000>;
+                                };
+
+                                regulator@7 {
+                                        reg = <7>;
+                                        regulator-compatible = "ldo3";
+                                        regulator-name = "vdd_ldo3,avdd_usb*";
+                                        regulator-min-microvolt = <3300000>;
+                                        regulator-max-microvolt = <3300000>;
+                                        regulator-always-on;
+                                };
+
+                                regulator@8 {
+                                        reg = <8>;
+                                        regulator-compatible = "ldo4";
+                                        regulator-name = "vdd_ldo4,avdd_osc,vddio_sys";
+                                        regulator-min-microvolt = <1800000>;
+                                        regulator-max-microvolt = <1800000>;
+                                        regulator-always-on;
+                                };
+
+                                regulator@9 {
+                                        reg = <9>;
+                                        regulator-compatible = "ldo5";
+                                        regulator-name = "vdd_ldo5,vcore_mmc";
+                                        regulator-min-microvolt = <2850000>;
+                                        regulator-max-microvolt = <2850000>;
+                                        regulator-always-on;
+                                };
+
+                                regulator@10 {
+                                        reg = <10>;
+                                        regulator-compatible = "ldo6";
+                                        regulator-name = "vdd_ldo6,avdd_vdac";
+                                        regulator-min-microvolt = <1800000>;
+                                        regulator-max-microvolt = <1800000>;
+                                };
+
+                                regulator@11 {
+                                        reg = <11>;
+                                        regulator-compatible = "ldo7";
+                                        regulator-name = "vdd_ldo7,avdd_hdmi,vdd_fuse";
+                                        regulator-min-microvolt = <3300000>;
+                                        regulator-max-microvolt = <3300000>;
+                                };
+
+                                regulator@12 {
+                                        reg = <12>;
+                                        regulator-compatible = "ldo8";
+                                        regulator-name = "vdd_ldo8,avdd_hdmi_pll";
+                                        regulator-min-microvolt = <1800000>;
+                                        regulator-max-microvolt = <1800000>;
+                                };
+
+                                regulator@13 {
+                                        reg = <13>;
+                                        regulator-compatible = "ldo9";
+                                        regulator-name = "vdd_ldo9,avdd_2v85,vdd_ddr_rx";
+                                        regulator-min-microvolt = <2850000>;
+                                        regulator-max-microvolt = <2850000>;
+                                        regulator-always-on;
+                                };
+
+                                regulator@14 {
+                                        reg = <14>;
+                                        regulator-compatible = "ldo_rtc";
+                                        regulator-name = "vdd_rtc_out,vdd_cell";
+                                        regulator-min-microvolt = <3300000>;
+                                        regulator-max-microvolt = <3300000>;
+                                        regulator-always-on;
+                                };
+                        };
+                };
+        };
+
+        pmc {
+                nvidia,invert-interrupt;
         };
 
         usb@c5000000 {
@@ -317,6 +467,60 @@
                 bus-width = <8>;
         };
 
+        regulators {
+                compatible = "simple-bus";
+                #address-cells = <1>;
+                #size-cells = <0>;
+
+                vdd_5v0_reg: regulator@0 {
+                        compatible = "regulator-fixed";
+                        reg = <0>;
+                        regulator-name = "vdd_5v0";
+                        regulator-min-microvolt = <5000000>;
+                        regulator-max-microvolt = <5000000>;
+                        regulator-always-on;
+                };
+
+                regulator@1 {
+                        compatible = "regulator-fixed";
+                        reg = <1>;
+                        regulator-name = "vdd_1v5";
+                        regulator-min-microvolt = <1500000>;
+                        regulator-max-microvolt = <1500000>;
+                        gpio = <&pmic 0 0>;
+                };
+
+                regulator@2 {
+                        compatible = "regulator-fixed";
+                        reg = <2>;
+                        regulator-name = "vdd_1v2";
+                        regulator-min-microvolt = <1200000>;
+                        regulator-max-microvolt = <1200000>;
+                        gpio = <&pmic 1 0>;
+                        enable-active-high;
+                };
+
+                regulator@3 {
+                        compatible = "regulator-fixed";
+                        reg = <3>;
+                        regulator-name = "vdd_pnl";
+                        regulator-min-microvolt = <2800000>;
+                        regulator-max-microvolt = <2800000>;
+                        gpio = <&gpio 22 0>; /* gpio PC6 */
+                        enable-active-high;
+                };
+
+                regulator@4 {
+                        compatible = "regulator-fixed";
+                        reg = <4>;
+                        regulator-name = "vdd_bl";
+                        regulator-min-microvolt = <2800000>;
+                        regulator-max-microvolt = <2800000>;
+                        gpio = <&gpio 176 0>; /* gpio PW0 */
+                        enable-active-high;
+                };
+        };
+
         sound {
                 compatible = "nvidia,tegra-audio-wm8903-ventana",
                              "nvidia,tegra-audio-wm8903";