This patch adds the binding documentation for Spreadtrum SC2731 charger
device.
Signed-off-by: Baolin Wang <baolin.wang@xxxxxxxxxx>
Reviewed-by: Krzysztof Kozlowski <krzk@xxxxxxxxxx>
---
Changes from v2:
- Add reviewed tag from Krzysztof.
Changes from v1:
- Add parent node.
- Add some battery standard properties.
---
.../bindings/power/supply/sc2731_charger.txt | 40 ++++++++++++++++++++++
1 file changed, 40 insertions(+)
create mode 100644 Documentation/devicetree/bindings/power/supply/sc2731_charger.txt
diff --git a/Documentation/devicetree/bindings/power/supply/sc2731_charger.txt b/Documentation/devicetree/bindings/power/supply/sc2731_charger.txt
new file mode 100644
index 0000000..5266fab
--- /dev/null
+++ b/Documentation/devicetree/bindings/power/supply/sc2731_charger.txt
@@ -0,0 +1,40 @@
+Spreadtrum SC2731 PMIC battery charger binding
+
+Required properties:
+ - compatible: Should be "sprd,sc2731-charger".
+ - reg: Address offset of charger register.
+ - phys: Contains a phandle to the USB phy.
+
+Optional Properties:
+- monitored-battery: phandle of battery characteristics devicetree node.
+ The charger uses the following battery properties:
+- charge-term-current-microamp: current for charge termination phase.
+- constant-charge-voltage-max-microvolt: maximum constant input voltage.
+ See Documentation/devicetree/bindings/power/supply/battery.txt
+
+Example:
+
+ bat: battery {
+ compatible = "simple-battery";
+ charge-term-current-microamp = <120000>;
+ constant-charge-voltage-max-microvolt = <4350000>;
+ ......
+ };
+
+ sc2731_pmic: pmic@0 {
+ compatible = "sprd,sc2731";
+ reg = <0>;
+ spi-max-frequency = <26000000>;
+ interrupts = <GIC_SPI 31 IRQ_TYPE_LEVEL_HIGH>;
+ interrupt-controller;
+ #interrupt-cells = <2>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ charger@0 {
+ compatible = "sprd,sc2731-charger";
+ reg = <0x0>;
+ phys = <&ssphy>;
+ monitored-battery = <&bat>;
+ };
+ };
--
1.9.1
