Add documentation on how to control VINDPM from the devicetree.
Signed-off-by: Angus Ainslie (Purism) <angus@xxxxxxxx>
---
.../devicetree/bindings/power/supply/bq25890.txt | 8 ++++++++
1 file changed, 8 insertions(+)
diff --git a/Documentation/devicetree/bindings/power/supply/bq25890.txt b/Documentation/devicetree/bindings/power/supply/bq25890.txt
index dc0568933359..fe8b709dd666 100644
--- a/Documentation/devicetree/bindings/power/supply/bq25890.txt
+++ b/Documentation/devicetree/bindings/power/supply/bq25890.txt
@@ -26,9 +26,15 @@ Optional properties:
- ti,use-ilim-pin: boolean, if present the ILIM resistor will be used and the
input current will be the lower between the resistor setting and the IINLIM
register setting;
+- ti,use-vinmin-threshold: boolean, if present the FORCE_VINDPM bit will be set
+ and the input voltage limit will be configured based on "ti,vinmin-threshold"
- ti,thermal-regulation-threshold: integer, temperature above which the charge
current is lowered, to avoid overheating (in degrees Celsius). If omitted,
the default setting will be used (120 degrees);
+- ti,vinmin-threshold: integer, lower absolute threshold for VINDPM. If the
+ voltage falls below this threshold the charge current is reduced until the
+ input voltage rises above the input voltage limit. If omitted, the default
+ setting will be used (4.4V);
Example:
@@ -46,4 +52,6 @@ bq25890 {
ti,use-ilim-pin;
ti,thermal-regulation-threshold = <120>;
+ ti,use-vinmin-threshold;
+ ti,vinmin-threshold = <3900000>;
};
--
2.17.1
