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>

diff --git a/arch/arm/boot/dts/tegra20-ventana.dts b/arch/arm/boot/dts/tegra20-ventana.dts
index be90544e6b590ca44b81aa0b119eb1dca504238c..4ec6b4cd9d5298ae887de0bf969c82ae2015a3b9 100644 (file)
--- 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";