The TS pin of the TPS56217 connects to the NTC resistor in the battery
pack. By default the device is setup to support a 10-kohm but can also
be configured to support a 100-kohm. Add a propietry to configure the
connected NTC resistor. Therefore, the charger would get the wrong
temperature information.
Signed-off-by: Enric Balletbo i Serra <enric.balletbo@xxxxxxxxxxxxx>
---
Changes since v2:
- Requested by Sebastian Reichel
- Get rid of common properties and only maintain ntc-type.
Changes since v1:
- None
.../devicetree/bindings/power/supply/tps65217_charger.txt | 7 +++++++
1 file changed, 7 insertions(+)
diff --git a/Documentation/devicetree/bindings/power/supply/tps65217_charger.txt b/Documentation/devicetree/bindings/power/supply/tps65217_charger.txt
index a11072c..851f5c7 100644
--- a/Documentation/devicetree/bindings/power/supply/tps65217_charger.txt
+++ b/Documentation/devicetree/bindings/power/supply/tps65217_charger.txt
@@ -6,6 +6,12 @@ Required Properties:
Should be <0> for the USB charger and <1> for the AC adapter.
-interrupt-names: Should be "USB" and "AC"
+Optional properties:
+-ti,ntc-type: set the NTC type for battery temperature measurement. The value
+ must be 0 or 1, where:
+ 0 – 100k (curve 1, B = 3960)
+ 1 – 10k (curve 2, B = 3480) (default)
+
This node is a subnode of the tps65217 PMIC.
Example:
@@ -14,4 +20,5 @@ Example:
compatible = "ti,tps65217-charger";
interrupts = <0>, <1>;
interrupt-names = "USB", "AC";
+ ti,ntc-type = <1>;
};
--
2.9.3
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