Re: [PATCH 1/1] power: supply: gpio-charger: Support to disable charger

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On 29/11/2024 11:38, Stefan Raufhake wrote:
> From: Stefan Raufhake <s.raufhake@xxxxxxxxxxx>
> 
> We want to disable the built-in UPS in our device

Thank you for your patch. There is something to discuss/improve.


> so that we can switch off the supply power of the
> device with and without the support of the UPS.

Please wrap commit message according to Linux coding style / submission
process (neither too early nor over the limit):
https://elixir.bootlin.com/linux/v6.4-rc1/source/Documentation/process/submitting-patches.rst#L597

> This commit will allow us to disable the ups by
> using the command echo 1 > /sys/class/power_supply/xxx/charge_type
> (1 = POWER_SUPPLY_CHARGE_TYPE_NONE) and enable the
> charger by setting it to 4 (POWER_SUPPLY_CHARGE_TYPE_STANDARD).

Please describe the hardware, not OS.

> 
> Signed-off-by: Stefan Raufhake <s.raufhake@xxxxxxxxxxx>
> ---
>  .../bindings/power/supply/gpio-charger.yaml   |  6 +++
>  drivers/power/supply/gpio-charger.c           | 43 +++++++++++++++++++

Please run scripts/checkpatch.pl and fix reported warnings. Then please
run `scripts/checkpatch.pl --strict` and (probably) fix more warnings.
Some warnings can be ignored, especially from --strict run, but the code
here looks like it needs a fix. Feel free to get in touch if the warning
is not clear.

>  2 files changed, 49 insertions(+)
> 
> diff --git a/Documentation/devicetree/bindings/power/supply/gpio-charger.yaml b/Documentation/devicetree/bindings/power/supply/gpio-charger.yaml
> index 89f8e2bcb2d7..b2658b0b20e4 100644
> --- a/Documentation/devicetree/bindings/power/supply/gpio-charger.yaml
> +++ b/Documentation/devicetree/bindings/power/supply/gpio-charger.yaml
> @@ -44,6 +44,10 @@ properties:
>      maxItems: 32
>      description: GPIOs used for current limiting
>  
> +  charge-disable-gpios:
> +    maxItems: 1
> +    description: GPIO to disable the charger

You just inverted existing "gpios" property, so no.

Best regards,
Krzysztof




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