Add Document for hi655x pmic driver
Signed-off-by: Chen Feng <puck.chen@xxxxxxxxxxxxx>
Signed-off-by: Fei Wang <w.f@xxxxxxxxxx>
---
.../regulator/hisilicon,hi655x-regulator.txt | 50 ++++++++++++++++++++++
1 file changed, 50 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..66c6a73
--- /dev/null
+++ b/Documentation/devicetree/bindings/regulator/hisilicon,hi655x-regulator.txt
@@ -0,0 +1,50 @@
+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.
+
+Required properties:
+- compatible: Must be "hisilicon,hi655x-regulator-pmic";
+- regulator-name: Regulator name in SoC.
+- regulator-min-microvolt: Smallest voltage support.
+- regulator-max-microvolt: Largest voltages support.
+- regulator-initial-mode: Init mode of this regulator.
+- regulator-valid-modes-mask: Valid support mode mask.
+- regulator-off-on-delay: The time wait for power steady
+- regulator-ctrl-regs: Registers offset of control register.
+ In turn with enable disable and status register offset.
+- regulator-ctrl-mask: The control mask of the register.
+- regulator-vset-regs: Voltage set register offset.
+- regulator-vset-mask: voltage set control mask.
+- regulator-n-vol: The num of support voltages.
+- regulator-vset-table: The table of support voltages.
+
+Example:
+ pmic: pmic@f8000000 {
+ compatible = "hisilicon,hi655x-pmic-driver";
+ ...
+ ldo2: regulator@a21 {
+ compatible = "hisilicon,hi655x-regulator-pmic";
+ regulator-name = "ldo2";
+ regulator-min-microvolt = <2500000>;
+ regulator-max-microvolt = <3200000>;
+ regulator-valid-modes-mask = <0x02>;
+ regulator-initial-mode = <0x02>;
+ regulator-off-on-delay = <120>;
+ regulator-ctrl-regs = <0x029 0x02a 0x02b>;
+ regulator-ctrl-mask = <0x1>;
+ regulator-vset-regs = <0x072>;
+ regulator-vset-mask = <0x3>;
+ regulator-n-vol = <8>;
+ regulator-vset-table = <2500000>,<2600000>,
+ <2700000>,<2800000>,
+ <2900000>,<3000000>,
+ <3100000>,<3200000>;
+ };
+ ...
+ }
--
1.9.1
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