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Date:   Sun, 17 Feb 2019 15:29:13 +0100
From:   Artur Rojek <contact@...ur-rojek.eu>
To:     Sebastian Reichel <sre@...nel.org>,
        Jonathan Cameron <jic23@...nel.org>,
        Rob Herring <robh+dt@...nel.org>,
        Mark Rutland <mark.rutland@....com>
Cc:     linux-pm@...r.kernel.org, linux-iio@...r.kernel.org,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
        Paul Cercueil <paul@...pouillou.net>,
        Artur Rojek <contact@...ur-rojek.eu>
Subject: [PATCH 4/7] dt-bindings: power: supply: Add docs for Ingenic JZ47xx SoCs battery.

Add documentation for the ingenic-battery driver, used on JZ47xx SoCs.

Signed-off-by: Artur Rojek <contact@...ur-rojek.eu>
---
 .../bindings/power/supply/ingenic,battery.txt | 31 +++++++++++++++++++
 1 file changed, 31 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/power/supply/ingenic,battery.txt

diff --git a/Documentation/devicetree/bindings/power/supply/ingenic,battery.txt b/Documentation/devicetree/bindings/power/supply/ingenic,battery.txt
new file mode 100644
index 000000000000..66430bf73815
--- /dev/null
+++ b/Documentation/devicetree/bindings/power/supply/ingenic,battery.txt
@@ -0,0 +1,31 @@
+* Ingenic JZ47xx battery bindings
+
+Required properties:
+
+- compatible: Must be "ingenic,jz4740-battery".
+- io-channels: phandle and IIO specifier pair to the IIO device.
+  Format described in iio-bindings.txt.
+- monitored-battery: phandle to a "simple-battery" compatible node.
+
+The "monitored-battery" property must be a phandle to a node using the format
+described in battery.txt, with the following properties being required:
+
+- voltage-min-design-microvolt: Drained battery voltage.
+- voltage-max-design-microvolt: Fully charged battery voltage.
+
+Example:
+
+#include <dt-bindings/iio/adc/ingenic,adc.h>
+
+simple_battery: battery {
+	compatible = "simple-battery";
+	voltage-min-design-microvolt = <3600000>;
+	voltage-max-design-microvolt = <4200000>;
+};
+
+ingenic_battery {
+	compatible = "ingenic,jz4740-battery";
+	io-channels = <&adc INGENIC_ADC_BATTERY>;
+	io-channel-names = "battery";
+	monitored-battery = <&simple_battery>;
+};
-- 
2.20.1

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