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dt-bindings: mfd: Add Rockchip rk817 battery charger support

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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@hotmail.com>
Signed-off-by: Maya Matuszczyk <maccraft123mc@gmail.com>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Lee Jones <lee@kernel.org>
Link: https://lore.kernel.org/r/20220827021623.23829-2-macroalpha82@gmail.com
This commit is contained in:
Chris Morgan 2022-08-26 21:16:20 -05:00 committed by Lee Jones
parent 07a1300336
commit a592aa3a2a
1 changed files with 50 additions and 0 deletions
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50
Documentation/devicetree/bindings/mfd/rockchip,rk817.yaml
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@ -117,6 +117,49 @@ properties:
description:
Describes if the microphone uses differential mode.
charger:
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
additionalProperties: false
allOf:
- if:
properties:
@ -323,6 +366,13 @@ examples:
};
};
rk817_charger: charger {
monitored-battery = <&battery>;
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;
};