[PATCH v4 3/6] Documentation: DT: Document twl4030-madc-battery bindings

[Marek Belisko <marek@goldelico.com>]

Signed-off-by: Marek Belisko <marek@goldelico.com>
---
 .../bindings/power_supply/twl4030_madc_battery.txt | 43 ++++++++++++++++++++++
 1 file changed, 43 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/power_supply/twl4030_madc_battery.txt

diff --git a/Documentation/devicetree/bindings/power_supply/twl4030_madc_battery.txt b/Documentation/devicetree/bindings/power_supply/twl4030_madc_battery.txt
new file mode 100644
index 0000000..d3dd9d8
--- /dev/null
+++ b/Documentation/devicetree/bindings/power_supply/twl4030_madc_battery.txt
@@ -0,0 +1,43 @@
+twl4030_madc_battery
+
+Required properties:
+ - compatible : "ti,twl4030-madc-battery"
+ - capacity-uah : battery capacity in uAh
+ - ti,volt-to-capacity-charging-map : list of voltage(mV):level(%) values
+	for charging calibration (see example)
+ - ti,volt-to-capacity-discharging-map : list of voltage(mV):level(%) values
+	for discharging calibration (see example)
+ - io-channels: Should contain IIO channel specifiers
+	for each element in io-channel-names.
+- io-channel-names: Should contain the following values:
+ * "temp" - The ADC channel for temperature reading
+ * "ichg" - The ADC channel for battery charging status
+ * "vbat" - The ADC channel to measure the battery voltage
+
+Example:
+	madc-battery {
+		compatible = "ti,twl4030-madc-battery";
+		capacity-uah = <1200000>;
+		ti,volt-to-capacity-charging-map = <4200 100>,
+					        <4100 75>,
+					        <4000 55>,
+					        <3900 25>,
+					        <3800 5>,
+					        <3700 2>,
+					        <3600 1>,
+					        <3300 0>;
+
+		ti,volt-to-capacity-discharging-map = <4200 100>
+						   <4100 95>,
+						   <4000 70>,
+						   <3800 50>,
+						   <3700 10>,
+						   <3600 5>,
+						   <3300 0>;
+		io-channels = <&twl_madc 1>,
+	                      <&twl_madc 10>,
+			      <&twl_madc 12>;
+		io-channel-names = "temp",
+		                   "ichg",
+		                   "vbat";
+	};
-- 
1.9.1