regulator: max1586: add device-tree binding

Add max1586 regulator device-tree bindings documentation.

Signed-off-by: Robert Jarzmik <robert.jarzmik@free.fr>
Signed-off-by: Mark Brown <broonie@kernel.org>

diff --git a/Documentation/devicetree/bindings/regulator/max1586-regulator.txt b/Documentation/devicetree/bindings/regulator/max1586-regulator.txt
new file mode 100644 (file)
index 0000000..c050c17
--- /dev/null
+++ b/Documentation/devicetree/bindings/regulator/max1586-regulator.txt
@@ -0,0 +1,28 @@
+Maxim MAX1586 voltage regulator
+
+Required properties:
+- compatible: must be "maxim,max1586"
+- reg: I2C slave address, usually 0x14
+- v3-gain: integer specifying the V3 gain as per datasheet
+           (1 + R24/R25 + R24/185.5kOhm)
+- any required generic properties defined in regulator.txt
+
+Example:
+
+       i2c_master {
+               max1586@14 {
+                       compatible = "maxim,max1586";
+                       reg = <0x14>;
+                       v3-gain = <1000000>;
+
+                       regulators {
+                               vcc_core: v3 {
+                                       regulator-name = "vcc_core";
+                                       regulator-compatible = "Output_V3";
+                                       regulator-min-microvolt = <1000000>;
+                                       regulator-max-microvolt = <1705000>;
+                                       regulator-always-on;
+                               };
+                       };
+               };
+       };