[RESEND v7 2/5] regulator: hi655x: Document for hi655x regulator

[Chen Feng]

This patch adds the device tree binding documentation for
hi655x PMIC regulator.

Signed-off-by: Chen Feng <puck.chen@xxxxxxxxxxxxx>
Signed-off-by: Fei Wang <w.f@xxxxxxxxxx>
Signed-off-by: Xinwei Kong <kong.kongxinwei@xxxxxxxxxxxxx>
Reviewed-by: Haojian Zhuang <haojian.zhuang@xxxxxxxxxx>
---
 .../regulator/hisilicon,hi655x-regulator.txt       | 28 ++++++++++++++++++++++
 1 file changed, 28 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/regulator/hisilicon,hi655x-regulator.txt

diff --git a/Documentation/devicetree/bindings/regulator/hisilicon,hi655x-regulator.txt b/Documentation/devicetree/bindings/regulator/hisilicon,hi655x-regulator.txt
new file mode 100644
index 0000000..09d3884
--- /dev/null
+++ b/Documentation/devicetree/bindings/regulator/hisilicon,hi655x-regulator.txt
@@ -0,0 +1,28 @@
+Hisilicon Hi655x Voltage regulators
+
+Note:
+The hi655x regulator control is managed by hi655x Power IC.
+So the node of this regulator must be child node of hi655x
+PMIC node.
+
+The driver uses the regulator core framework, so please also
+take the bindings of regulator.txt for reference.
+
+The valid names for regulators are:
+
+LDO2 LDO7 LDO10 LDO13 LDO14 LDO15 LDO17 LDO19 LDO21 LDO22
+
+Example:
+        pmic: pmic@f8000000 {
+                compatible = "hisilicon,hi655x-pmic";
+		...
+		regulators {
+			ldo2: LDO2@a21 {
+				regulator-compatible = "LDO2_2V8";
+				regulator-min-microvolt = <2500000>;
+				regulator-max-microvolt = <3200000>;
+				regulator-enable-ramp-delay = <120>;
+			};
+			...
+		}
+	}
-- 
1.9.1