Document added iio properties to avoid using direct function call from twl4030-madc
driver.
Signed-off-by: Marek Belisko <marek@xxxxxxxxxxxxx>
---
Documentation/devicetree/bindings/power/twl-charger.txt | 6 ++++++
1 file changed, 6 insertions(+)
diff --git a/Documentation/devicetree/bindings/power/twl-charger.txt b/Documentation/devicetree/bindings/power/twl-charger.txt
index 3b4ea1b..e198650 100644
--- a/Documentation/devicetree/bindings/power/twl-charger.txt
+++ b/Documentation/devicetree/bindings/power/twl-charger.txt
@@ -19,12 +19,18 @@ Required properties:
Optional properties:
- ti,bb-uvolt: microvolts for charging the backup battery.
- ti,bb-uamp: microamps for charging the backup battery.
+- io-channels: Should contain following: <&twl4030_madc 11>
+- io-channel-names: Should contains following value:
+ * "vac" - ADC channel for measuring the voltage of the external AC charger
+If io properties aren't provided then functionality of accesory charger doesn't work.
Examples:
bci {
compatible = "ti,twl4030-bci";
interrupts = <9>, <2>;
+ io-channels = <&twl4030_madc 11>;
+ io-channel-name = "vac";
ti,bb-uvolt = <3200000>;
ti,bb-uamp = <150>;
};
--
1.9.1
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