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+
+* Samsung S2MPS11, S2MPS13, S2MPS14 and S2MPU02 Voltage and Current Regulator
+
+The Samsung S2MPS11 is a multi-function device which includes voltage and
+current regulators, RTC, charger controller and other sub-blocks. It is
+interfaced to the host controller using an I2C interface. Each sub-block is
+addressed by the host system using different I2C slave addresses.
+
+Required properties:
+- compatible: Should be "samsung,s2mps11-pmic" or "samsung,s2mps13-pmic"
+	      or "samsung,s2mps14-pmic" or "samsung,s2mpu02-pmic".
+- reg: Specifies the I2C slave address of the pmic block. It should be 0x66.
+
+Optional properties:
+- interrupt-parent: Specifies the phandle of the interrupt controller to which
+  the interrupts from s2mps11 are delivered to.
+- interrupts: Interrupt specifiers for interrupt sources.
+
+Optional nodes:
+- clocks: s2mps11, s2mps13 and s5m8767 provide three(AP/CP/BT) buffered 32.768
+  KHz outputs, so to register these as clocks with common clock framework
+  instantiate a sub-node named "clocks". It uses the common clock binding
+  documented in :
+  [Documentation/devicetree/bindings/clock/clock-bindings.txt]
+  The s2mps14 provides two (AP/BT) buffered 32.768 KHz outputs.
+  - #clock-cells: should be 1.
+
+  - The following is the list of clocks generated by the controller. Each clock
+    is assigned an identifier and client nodes use this identifier to specify
+    the clock which they consume.
+    Clock               ID           Devices
+    ----------------------------------------------------------
+    32KhzAP		0            S2MPS11, S2MPS13, S2MPS14, S5M8767
+    32KhzCP		1            S2MPS11, S2MPS13, S5M8767
+    32KhzBT		2            S2MPS11, S2MPS13, S2MPS14, S5M8767
+
+  - compatible: Should be one of: "samsung,s2mps11-clk", "samsung,s2mps13-clk",
+		"samsung,s2mps14-clk", "samsung,s5m8767-clk"
+
+- regulators: The regulators of s2mps11 that have to be instantiated should be
+included in a sub-node named 'regulators'. Regulator nodes included in this
+sub-node should be of the format as listed below.
+
+	regulator_name {
+		[standard regulator constraints....];
+	};
+
+ regulator-ramp-delay for BUCKs = [6250/12500/25000(default)/50000] uV/us
+
+ BUCK[2/3/4/6] supports disabling ramp delay on hardware, so explicitly
+ regulator-ramp-delay = <0> can be used for them to disable ramp delay.
+ In the absence of the regulator-ramp-delay property, the default ramp
+ delay will be used.
+
+NOTE: Some BUCKs share the ramp rate setting i.e. same ramp value will be set
+for a particular group of BUCKs. So provide same regulator-ramp-delay<value>.
+Grouping of BUCKs sharing ramp rate setting is as follow : BUCK[1, 6],
+BUCK[3, 4], and BUCK[7, 8, 10]
+
+On S2MPS14 the LDO10, LDO11 and LDO12 can be configured to external control
+over GPIO. To turn this feature on this property must be added to the regulator
+sub-node:
+	- samsung,ext-control-gpios: GPIO specifier for one GPIO
+		controlling this regulator (enable/disable);
+Example:
+	LDO12 {
+		regulator-name = "V_EMMC_2.8V";
+		regulator-min-microvolt = <2800000>;
+		regulator-max-microvolt = <2800000>;
+		samsung,ext-control-gpios = <&gpk0 2 0>;
+	};
+
+
+The regulator constraints inside the regulator nodes use the standard regulator
+bindings which are documented elsewhere.
+
+The following are the names of the regulators that the s2mps11 pmic block
+supports. Note: The 'n' in LDOn and BUCKn represents the LDO or BUCK number
+as per the datasheet of s2mps11.
+
+	- LDOn
+		  - valid values for n are:
+			- S2MPS11: 1 to 38
+			- S2MPS13: 1 to 40
+			- S2MPS14: 1 to 25
+			- S2MPU02: 1 to 28
+		  - Example: LDO1, LDO2, LDO28
+	- BUCKn
+		  - valid values for n are:
+			- S2MPS11: 1 to 10
+			- S2MPS13: 1 to 10
+			- S2MPS14: 1 to 5
+			- S2MPU02: 1 to 7
+		  - Example: BUCK1, BUCK2, BUCK9
+
+Example:
+
+	s2mps11_pmic@66 {
+		compatible = "samsung,s2mps11-pmic";
+		reg = <0x66>;
+
+		s2m_osc: clocks {
+			compatible = "samsung,s2mps11-clk";
+			#clock-cells = <1>;
+			clock-output-names = "xx", "yy", "zz";
+		};
+
+		regulators {
+			ldo1_reg: LDO1 {
+				regulator-name = "VDD_ABB_3.3V";
+				regulator-min-microvolt = <3300000>;
+				regulator-max-microvolt = <3300000>;
+			};
+
+			ldo2_reg: LDO2 {
+				regulator-name = "VDD_ALIVE_1.1V";
+				regulator-min-microvolt = <1100000>;
+				regulator-max-microvolt = <1100000>;
+				regulator-always-on;
+			};
+
+			buck1_reg: BUCK1 {
+				regulator-name = "vdd_mif";
+				regulator-min-microvolt = <950000>;
+				regulator-max-microvolt = <1350000>;
+				regulator-always-on;
+				regulator-boot-on;
+			};
+
+			buck2_reg: BUCK2 {
+				regulator-name = "vdd_arm";
+				regulator-min-microvolt = <950000>;
+				regulator-max-microvolt = <1350000>;
+				regulator-always-on;
+				regulator-boot-on;
+				regulator-ramp-delay = <50000>;
+			};
+		};
+	};