Hi Rob,
Le jeu. 28 févr. 2019 à 15:48, Rob Herring <robh@xxxxxxxxxx> a écrit
:
On Sun, Feb 17, 2019 at 03:29:13PM +0100, Artur Rojek wrote:
Add documentation for the ingenic-battery driver, used on JZ47xx
SoCs.
Signed-off-by: Artur Rojek <contact@xxxxxxxxxxxxxx>
---
.../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>;
Isn't this just an ADC monitored battery? What's specific to JZ4740?
Maybe a generic binding is appropriate here?
Rob
There is no generic driver, is there? The generic-adc-battery driver
isn't OF-compatible and looks like dead code (nothing uses it).
-Paul
