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[PATCHv2] dt: binding documentation for bq2415x charger

Message ID 1389393286-15263-1-git-send-email-sre@debian.org
State Superseded, archived
Headers show

Commit Message

Sebastian Reichel Jan. 10, 2014, 10:34 p.m. UTC 
Add devicetree binding documentation for bq2415x charger.

Signed-off-by: Sebastian Reichel <sre@debian.org>
---
Hi,

This is the second version of the bq2415x binding documentation. The
only changes since PATCHv1 are a rewording of the property descriptions
as requested by Pavel Machek.

I narrowed down the CCs for this patch, since there were no comments on
PATCHv1 from omap or DT binding guys and Anton has applied the driver changes
already. This patch is intended for 3.14, so that it gets merged together
with the driver changes.

-- Sebastian
---
 .../devicetree/bindings/power/bq2415x.txt          | 48 ++++++++++++++++++++++
 1 file changed, 48 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/power/bq2415x.txt
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Patch

diff --git a/Documentation/devicetree/bindings/power/bq2415x.txt b/Documentation/devicetree/bindings/power/bq2415x.txt
new file mode 100644
index 0000000..64f4a7f
--- /dev/null
+++ b/Documentation/devicetree/bindings/power/bq2415x.txt
@@ -0,0 +1,48 @@ 
+Binding for TI bq2415x Li-Ion Charger
+
+Required properties:
+- compatible: Should contain one of the following:
+ * "ti,bq24150"
+ * "ti,bq24150"
+ * "ti,bq24150a"
+ * "ti,bq24151"
+ * "ti,bq24151a"
+ * "ti,bq24152"
+ * "ti,bq24153"
+ * "ti,bq24153a"
+ * "ti,bq24155"
+ * "ti,bq24156"
+ * "ti,bq24156a"
+ * "ti,bq24158"
+- reg:			   integer, i2c address of the device.
+- ti,current-limit:	   integer, initial maximum current charger can pull
+			   from power supply in mA.
+- ti,weak-battery-voltage: integer, weak battery voltage threshold in mV.
+			   The chip will use slow precharge if battery voltage
+			   is below this value.
+- ti,battery-regulation-voltage: integer, maximum charging voltage in mV.
+- ti,charge-current:	   integer, maximum charging current in mA.
+- ti,termination-current:  integer, charge will be terminated when current in
+			   constant-voltage phase drops below this value (in
+			   mA), charge is terminated.
+- ti,resistor-sense:	   integer, value of sensing resistor in milliohm.
+
+Optional properties:
+- ti,usb-charger-detection: phandle to usb charger detection device.
+			    (required for auto mode)
+
+Example from Nokia N900:
+
+bq24150a {
+	compatible = "ti,bq24150a";
+	reg = <0x6b>;
+
+	ti,current-limit = <100>;
+	ti,weak-battery-voltage = <3400>;
+	ti,battery-regulation-voltage = <4200>;
+	ti,charge-current = <650>;
+	ti,termination-current = <100>;
+	ti,resistor-sense = <68>;
+
+	ti,usb-charger-detection = <&isp1704>;
+};