[PATCH 1/4 v5] dt-bindings: Add Rockchip rk817 battery charger support

[Krzysztof Kozlowski]

On 04/04/2022 23:57, Chris Morgan wrote:
> From: Chris Morgan <macromorgan at hotmail.com>
> 
> Create dt-binding documentation to document rk817 battery and charger
> usage. New device-tree properties have been added.
> 
> - rockchip,resistor-sense-micro-ohms: The value in microohms of the
>                                       sample resistor.
> - rockchip,sleep-enter-current-microamp: The value in microamps of the
>                                          sleep enter current.
> - rockchip,sleep-filter-current: The value in microamps of the sleep
>                                  filter current.
> 
> Signed-off-by: Chris Morgan <macromorgan at hotmail.com>
> Signed-off-by: Maya Matuszczyk <maccraft123mc at gmail.com>
> ---
>  .../bindings/mfd/rockchip,rk817.yaml          | 48 +++++++++++++++++++
>  1 file changed, 48 insertions(+)
> 
> diff --git a/Documentation/devicetree/bindings/mfd/rockchip,rk817.yaml b/Documentation/devicetree/bindings/mfd/rockchip,rk817.yaml
> index bfc1720adc43..b949d406a487 100644
> --- a/Documentation/devicetree/bindings/mfd/rockchip,rk817.yaml
> +++ b/Documentation/devicetree/bindings/mfd/rockchip,rk817.yaml
> @@ -117,6 +117,47 @@ properties:
>          description:
>            Describes if the microphone uses differential mode.
>  
> +  battery:

I wonder why do you call it a batter while it is a charger, isn't it?

> +    description: |
> +      The child node for the charger to hold additional properties. If a
> +      battery is not in use, this node can be omitted.
> +    type: object
> +    properties:
> +      monitored-battery:
> +        description: |
> +          A phandle to a monitored battery node that contains a valid
> +          value for:
> +          charge-full-design-microamp-hours,
> +          charge-term-current-microamp,
> +          constant-charge-current-max-microamp,
> +          constant-charge-voltage-max-microvolt,
> +          voltage-max-design-microvolt,
> +          voltage-min-design-microvolt,
> +          and a valid ocv-capacity table.
> +
> +      rockchip,resistor-sense-micro-ohms:
> +        description: |
> +          Value in microohms of the battery sense resistor. This value is
> +          used by the driver to set the correct divisor value to translate
> +          ADC readings into the proper units of measure.
> +        enum: [10000, 20000]
> +
> +      rockchip,sleep-enter-current-microamp:
> +        description: |
> +          Value in microamps of the sleep enter current for the charger.
> +          Value is used by the driver to calibrate the relax threshold.
> +
> +      rockchip,sleep-filter-current-microamp:
> +        description:
> +          Value in microamps of the sleep filter current for the charger.
> +          Value is used by the driver to derive the sleep sample current.
> +
> +    required:
> +      - monitored-battery
> +      - rockchip,resistor-sense-micro-ohms
> +      - rockchip,sleep-enter-current-microamp
> +      - rockchip,sleep-filter-current-microamp
> +
>  allOf:
>    - if:
>        properties:
> @@ -323,6 +364,13 @@ examples:
>                  };
>              };
>  
> +            rk817_battery: battery {

The same.

> +                monitored-battery = <&battery_cell>;
> +                rockchip,resistor-sense-micro-ohms = <10000>;
> +                rockchip,sleep-enter-current-microamp = <300000>;
> +                rockchip,sleep-filter-current-microamp = <100000>;
> +            };
> +
>              rk817_codec: codec {
>                  rockchip,mic-in-differential;
>              };


Best regards,
Krzysztof