mfd: tps65090: add DT support for tps65090

Add device tree support for the TI PMIC TPS65090.
The device can be registered through platform or DT.

Add device tree binding document for this device.

Signed-off-by: Laxman Dewangan <ldewangan@nvidia.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>

1 files changed, 122 insertions, 0 deletions

diff --git a/Documentation/devicetree/bindings/regulator/tps65090.txt b/Documentation/devicetree/bindings/regulator/tps65090.txt
new file mode 100644
index 000000000000..313a60ba61d8
--- /dev/null
+++ b/Documentation/devicetree/bindings/regulator/tps65090.txt
@@ -0,0 +1,122 @@
+TPS65090 regulators
+
+Required properties:
+- compatible: "ti,tps65090"
+- reg: I2C slave address
+- interrupts: the interrupt outputs of the controller
+- regulators: A node that houses a sub-node for each regulator within the
+  device. Each sub-node is identified using the node's name, with valid
+  values listed below. The content of each sub-node is defined by the
+  standard binding for regulators; see regulator.txt.
+  dcdc[1-3], fet[1-7] and ldo[1-2] respectively.
+- vsys[1-3]-supply: The input supply for DCDC[1-3] respectively.
+- infet[1-7]-supply: The input supply for FET[1-7] respectively.
+- vsys-l[1-2]-supply: The input supply for LDO[1-2] respectively.
+
+Optional properties:
+- ti,enable-ext-control: This is applicable for DCDC1, DCDC2 and DCDC3.
+  If DCDCs are externally controlled then this property should be there.
+- "dcdc-ext-control-gpios: This is applicable for DCDC1, DCDC2 and DCDC3.
+  If DCDCs are externally controlled and if it is from GPIO then GPIO
+  number should be provided. If it is externally controlled and no GPIO
+  entry then driver will just configure this rails as external control
+  and will not provide any enable/disable APIs.
+
+Each regulator is defined using the standard binding for regulators.
+
+Example:
+
+        tps65090@48 {
+                compatible = "ti,tps65090";
+                reg = <0x48>;
+                interrupts = <0 88 0x4>;
+
+                vsys1-supply = <&some_reg>;
+                vsys2-supply = <&some_reg>;
+                vsys3-supply = <&some_reg>;
+                infet1-supply = <&some_reg>;
+                infet2-supply = <&some_reg>;
+                infet3-supply = <&some_reg>;
+                infet4-supply = <&some_reg>;
+                infet5-supply = <&some_reg>;
+                infet6-supply = <&some_reg>;
+                infet7-supply = <&some_reg>;
+                vsys_l1-supply = <&some_reg>;
+                vsys_l2-supply = <&some_reg>;
+
+                regulators {
+                        dcdc1 {
+                                regulator-name = "dcdc1";
+                                regulator-boot-on;
+                                regulator-always-on;
+                                ti,enable-ext-control;
+                                dcdc-ext-control-gpios = <&gpio 10 0>;
+                        };
+
+                        dcdc2 {
+                                regulator-name = "dcdc2";
+                                regulator-boot-on;
+                                regulator-always-on;
+                        };
+
+                        dcdc3 {
+                                regulator-name = "dcdc3";
+                                regulator-boot-on;
+                                regulator-always-on;
+                        };
+
+                        fet1 {
+                                regulator-name = "fet1";
+                                regulator-boot-on;
+                                regulator-always-on;
+                        };
+
+                        fet2 {
+                                regulator-name = "fet2";
+                                regulator-boot-on;
+                                regulator-always-on;
+                        };
+
+                        fet3 {
+                                regulator-name = "fet3";
+                                regulator-boot-on;
+                                regulator-always-on;
+                        };
+
+                        fet4 {
+                                regulator-name = "fet4";
+                                regulator-boot-on;
+                                regulator-always-on;
+                        };
+
+                        fet5 {
+                                regulator-name = "fet5";
+                                regulator-boot-on;
+                                regulator-always-on;
+                        };
+
+                        fet6 {
+                                regulator-name = "fet6";
+                                regulator-boot-on;
+                                regulator-always-on;
+                        };
+
+                        fet7 {
+                                regulator-name = "fet7";
+                                regulator-boot-on;
+                                regulator-always-on;
+                        };
+
+                        ldo1 {
+                                regulator-name = "ldo1";
+                                regulator-boot-on;
+                                regulator-always-on;
+                        };
+
+                        ldo2 {
+                                regulator-name = "ldo2";
+                                regulator-boot-on;
+                                regulator-always-on;
+                        };
+                };
+        };