linux-kernel - [PATCH v3] Documentation: DT: twl-charger: document new iio properties

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Message-Id: <1443212447-5841-2-git-send-email-marek@goldelico.com>
Date:	Fri, 25 Sep 2015 22:20:46 +0200
From:	Marek Belisko <marek@...delico.com>
To:	sre@...nel.org, dbaryshkov@...il.com, dwmw2@...radead.org
Cc:	neilb@...e.de, devicetree@...r.kernel.org,
	linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
	linux-pm@...r.kernel.org, hns@...delico.com,
	Marek Belisko <marek@...delico.com>
Subject: [PATCH v3] Documentation: DT: twl-charger: document new iio properties

Document added iio properties to avoid using direct function call from twl4030-madc
driver.

Signed-off-by: Marek Belisko <marek@...delico.com>
---
 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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