ARM: dts: Add max77686 device tree support for CROS5250

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@samsung.com>
Acked-by: Doug Anderson <dianders@chromium.org>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>

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 46c098017036..62eceb4f0d3f 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@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@12C70000 {