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authorSebastian Reichel <sre@kernel.org>2014-03-01 21:22:45 +0100
committerSebastian Reichel <sre@kernel.org>2014-07-18 23:40:22 +0200
commitc93e12c0ff42de33514d574ff1292f5347e2a8b5 (patch)
treec160cbaec8ee215c18df281941e11cf7b979559f /Documentation/devicetree/bindings/power
parent57da5e86e6f4101c0fc629a63d870508348e2a84 (diff)
Documentation: DT: Document rx51-battery binding
Add devicetree binding documentation for rx51-battery, which is a simple A/D converter consumer. Signed-off-by: Sebastian Reichel <sre@kernel.org>
Diffstat (limited to 'Documentation/devicetree/bindings/power')
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diff --git a/Documentation/devicetree/bindings/power/rx51-battery.txt b/Documentation/devicetree/bindings/power/rx51-battery.txt
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+Binding for Nokia N900 battery
+
+The Nokia N900 battery status can be read via the TWL4030's A/D converter.
+
+Required properties:
+- compatible: Should contain one of the following:
+ * "nokia,n900-battery"
+- 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
+ * "bsi" - The ADC channel for battery size identification
+ * "vbat" - The ADC channel to measure the battery voltage
+
+Example from Nokia N900:
+
+battery: n900-battery {
+ compatible = "nokia,n900-battery";
+ io-channels = <&twl4030_madc 0>,
+ <&twl4030_madc 4>,
+ <&twl4030_madc 12>;
+ io-channel-names = "temp",
+ "bsi",
+ "vbat";
+};

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