On Mon, May 20, 2019 at 11:07:12AM -0700, Angus Ainslie (Purism) wrote:
> 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"
Isn't presence of ti,vinmin-threshold enough to determine whether to set
FORCE_VINDPM or not? Just get rid of the default being 4.4V.
> - 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
>
