[PATCH v2] ARM: dts: Add Maxim 77693 PMIC to the Trats2 board

[Krzysztof Kozlowski]

The MAX77693 is a companion power management IC for smart phones and tablets.

The MAX77693 contains input over-voltage protection (OVP),
a fully-integrated 2.5A switching charger for Lithium Ion battery with
integrated battery disconnect, OTG/accessory 5V output power,
a high-current white LED driver for camera flash, two safeout LDOs,
a haptic motor driver, Model Gauge m3 battery fuel gauge and MicroUSB
Interface Controller (MUIC). I2C serial interface is used for
communicating.

Add MAX77693 node to the Trats2 board. This allows using:
 - charger regulator,
 - 2 safeout LDO regulators (for USB OTG),
 - extcon.

Signed-off-by: Krzysztof Kozlowski <k.kozlowski at samsung.com>
Reviewed-by: Javier Martinez Canillas <javier.martinez at collabora.co.uk>

---

Changes since v1:
==================
1. Use GPIO_ACTIVE_HIGH for gpio flags (suggested by Javier Martinez
   Canillas).
2. Use regulator node name instead of deprecated regulator-compatible
   property (suggested by Javier Martinez Canillas).
3. Add Javier Martinez Canillas' reviewed-by tag.
---
 arch/arm/boot/dts/exynos4412-trats2.dts | 32 ++++++++++++++++++++++++++++++++
 1 file changed, 32 insertions(+)

diff --git a/arch/arm/boot/dts/exynos4412-trats2.dts b/arch/arm/boot/dts/exynos4412-trats2.dts
index 11967f4561e0..1953317bd658 100644
--- a/arch/arm/boot/dts/exynos4412-trats2.dts
+++ b/arch/arm/boot/dts/exynos4412-trats2.dts
@@ -14,6 +14,7 @@
 
 /dts-v1/;
 #include "exynos4412.dtsi"
+#include <dt-bindings/gpio/gpio.h>
 
 / {
 	model = "Samsung Trats 2 based on Exynos4412";
@@ -22,6 +23,7 @@
 	aliases {
 		i2c9 = &i2c_ak8975;
 		i2c10 = &i2c_cm36651;
+		i2c11 = &i2c_max77693;
 	};
 
 	memory {
@@ -518,6 +520,36 @@
 		};
 	};
 
+	i2c_max77693: i2c-gpio-1 {
+		compatible = "i2c-gpio";
+		gpios = <&gpm2 0 GPIO_ACTIVE_HIGH>, <&gpm2 1 GPIO_ACTIVE_HIGH>;
+		i2c-gpio,delay-us = <2>;
+		#address-cells = <1>;
+		#size-cells = <0>;
+		status = "okay";
+
+		max77693 at 66 {
+			compatible = "maxim,max77693";
+			interrupt-parent = <&gpx1>;
+			interrupts = <5 2>;
+			reg = <0x66>;
+
+			regulators {
+				esafeout1_reg: ESAFEOUT1 at 1 {
+					regulator-name = "ESAFEOUT1";
+				};
+				esafeout2_reg: ESAFEOUT2 at 2 {
+					regulator-name = "ESAFEOUT2";
+				};
+				charger_reg: CHARGER at 0 {
+					regulator-name = "CHARGER";
+					regulator-min-microamp = <60000>;
+					regulator-max-microamp = <2580000>;
+				};
+			};
+		};
+	};
+
 	mmc at 12550000 {
 		num-slots = <1>;
 		supports-highspeed;
-- 
1.9.1