[PATCH v3] ARM: DTS: CROS5250: Add max77686 device tree support

[Abhilash Kesavan]

The exynos5250 based chromebooks have a max77686 pmic on i2c channel 0.
Add support for the pmic in the common cros5250 dts file.
Tested after enabling cpufreq support for exynos5250 SoC and varying the
arm frequency/voltage using the userspace governer.

Signed-off-by: Abhilash Kesavan <a.kesavan at samsung.com>
Acked-by: Doug Anderson <dianders at chromium.org>
---
Changes since v1:
* Used generic names for the regulators
* Changed BUCK5 as being default "ON"
Changes since v2:
* Fixed the LDO7 name from "P1.0V_LDO_OUT7" to "P1.1V_LDO_OUT7"

 arch/arm/boot/dts/cros5250-common.dtsi |  138 ++++++++++++++++++++++++++++++++
 1 files changed, 138 insertions(+), 0 deletions(-)

diff --git a/arch/arm/boot/dts/cros5250-common.dtsi b/arch/arm/boot/dts/cros5250-common.dtsi
index fddd174..8ab8394 100644
--- a/arch/arm/boot/dts/cros5250-common.dtsi
+++ b/arch/arm/boot/dts/cros5250-common.dtsi
@@ -24,6 +24,144 @@
 		samsung,i2c-max-bus-freq = <378000>;
 		gpios = <&gpb3 0 2 3 0>,
 			<&gpb3 1 2 3 0>;
+
+		max77686 at 09 {
+			compatible = "maxim,max77686";
+			reg = <0x09>;
+
+			voltage-regulators {
+				ldo1_reg: LDO1 {
+					regulator-name = "P1.0V_LDO_OUT1";
+					regulator-min-microvolt = <1000000>;
+					regulator-max-microvolt = <1000000>;
+					regulator-always-on;
+				};
+
+				ldo2_reg: LDO2 {
+					regulator-name = "P1.8V_LDO_OUT2";
+					regulator-min-microvolt = <1800000>;
+					regulator-max-microvolt = <1800000>;
+					regulator-always-on;
+				};
+
+				ldo3_reg: LDO3 {
+					regulator-name = "P1.8V_LDO_OUT3";
+					regulator-min-microvolt = <1800000>;
+					regulator-max-microvolt = <1800000>;
+					regulator-always-on;
+				};
+
+				ldo7_reg: LDO7 {
+					regulator-name = "P1.1V_LDO_OUT7";
+					regulator-min-microvolt = <1100000>;
+					regulator-max-microvolt = <1100000>;
+					regulator-always-on;
+				};
+
+				ldo8_reg: LDO8 {
+					regulator-name = "P1.0V_LDO_OUT8";
+					regulator-min-microvolt = <1000000>;
+					regulator-max-microvolt = <1000000>;
+					regulator-always-on;
+				};
+
+				ldo10_reg: LDO10 {
+					regulator-name = "P1.8V_LDO_OUT10";
+					regulator-min-microvolt = <1800000>;
+					regulator-max-microvolt = <1800000>;
+					regulator-always-on;
+				};
+
+				ldo12_reg: LDO12 {
+					regulator-name = "P3.0V_LDO_OUT12";
+					regulator-min-microvolt = <3000000>;
+					regulator-max-microvolt = <3000000>;
+					regulator-always-on;
+				};
+
+				ldo14_reg: LDO14 {
+					regulator-name = "P1.8V_LDO_OUT14";
+					regulator-min-microvolt = <1800000>;
+					regulator-max-microvolt = <1800000>;
+					regulator-always-on;
+				};
+
+				ldo15_reg: LDO15 {
+					regulator-name = "P1.0V_LDO_OUT15";
+					regulator-min-microvolt = <1000000>;
+					regulator-max-microvolt = <1000000>;
+					regulator-always-on;
+				};
+
+				ldo16_reg: LDO16 {
+					regulator-name = "P1.8V_LDO_OUT16";
+					regulator-min-microvolt = <1800000>;
+					regulator-max-microvolt = <1800000>;
+					regulator-always-on;
+				};
+
+				buck1_reg: BUCK1 {
+					regulator-name = "vdd_mif";
+					regulator-min-microvolt = <950000>;
+					regulator-max-microvolt = <1300000>;
+					regulator-always-on;
+					regulator-boot-on;
+				};
+
+				buck2_reg: BUCK2 {
+					regulator-name = "vdd_arm";
+					regulator-min-microvolt = <850000>;
+					regulator-max-microvolt = <1350000>;
+					regulator-always-on;
+					regulator-boot-on;
+				};
+
+				buck3_reg: BUCK3 {
+					regulator-name = "vdd_int";
+					regulator-min-microvolt = <900000>;
+					regulator-max-microvolt = <1200000>;
+					regulator-always-on;
+					regulator-boot-on;
+				};
+
+				buck4_reg: BUCK4 {
+					regulator-name = "vdd_g3d";
+					regulator-min-microvolt = <850000>;
+					regulator-max-microvolt = <1300000>;
+					regulator-always-on;
+					regulator-boot-on;
+				};
+
+				buck5_reg: BUCK5 {
+					regulator-name = "P1.8V_BUCK_OUT5";
+					regulator-min-microvolt = <1800000>;
+					regulator-max-microvolt = <1800000>;
+					regulator-always-on;
+					regulator-boot-on;
+				};
+
+				buck6_reg: BUCK6 {
+					regulator-name = "P1.35V_BUCK_OUT6";
+					regulator-min-microvolt = <1350000>;
+					regulator-max-microvolt = <1350000>;
+					regulator-always-on;
+				};
+
+				buck7_reg: BUCK7 {
+					regulator-name = "P2.0V_BUCK_OUT7";
+					regulator-min-microvolt = <2000000>;
+					regulator-max-microvolt = <2000000>;
+					regulator-always-on;
+				};
+
+				buck8_reg: BUCK8 {
+					regulator-name = "P2.85V_BUCK_OUT8";
+					regulator-min-microvolt = <2850000>;
+					regulator-max-microvolt = <2850000>;
+					regulator-always-on;
+				};
+			};
+		};
 	};
 
 	i2c at 12C70000 {
-- 
1.6.6.1