Re: [PATCH v11 1/8] dt-bindings: power: supply: Add MediaTek MT6370 Charger

From: Sebastian Reichel
Date: Tue Sep 20 2022 - 12:09:09 EST


Hi,

On Thu, Sep 15, 2022 at 05:47:29PM +0800, ChiaEn Wu wrote:
> From: ChiaEn Wu <chiaen_wu@xxxxxxxxxxx>
>
> Add MediaTek MT6370 Charger binding documentation.
>
> Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@xxxxxxxxxx>
> Signed-off-by: ChiaEn Wu <chiaen_wu@xxxxxxxxxxx>
> ---
> v11
> - Add more detailed description of irqs.
> - Adujust the order of irqs
> ---

Thanks, queued.

-- Sebastian

> .../power/supply/mediatek,mt6370-charger.yaml | 96 ++++++++++++++++++++++
> 1 file changed, 96 insertions(+)
> create mode 100644 Documentation/devicetree/bindings/power/supply/mediatek,mt6370-charger.yaml
>
> diff --git a/Documentation/devicetree/bindings/power/supply/mediatek,mt6370-charger.yaml b/Documentation/devicetree/bindings/power/supply/mediatek,mt6370-charger.yaml
> new file mode 100644
> index 0000000..fd491c5
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/power/supply/mediatek,mt6370-charger.yaml
> @@ -0,0 +1,96 @@
> +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/power/supply/mediatek,mt6370-charger.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: MediaTek MT6370 Battery Charger
> +
> +maintainers:
> + - ChiaEn Wu <chiaen_wu@xxxxxxxxxxx>
> +
> +description: |
> + This module is part of the MT6370 MFD device.
> + Provides Battery Charger, Boost for OTG devices and BC1.2 detection.
> +
> +properties:
> + compatible:
> + const: mediatek,mt6370-charger
> +
> + interrupts:
> + description: |
> + Specify what irqs are needed to be handled by MT6370 Charger driver.
> + We need to use the IRQ "MT6370_IRQ_OVPCTRL_UVP_D" to know when USB
> + is plugged in, and then the driver will enable BC1.2 detection.
> + After the hardware of MT6370 completes the BC1.2 detection,
> + IRQ "MT6370_IRQ_ATTACH" will be triggered, and the driver will know
> + the result of BC1.2 detection.
> + When the IRQ "MT6370_IRQ_CHG_MIVR" is triggered, it means that the
> + hardware enters the "Minimum Input Voltage Regulation loop" and
> + a workaround needs to be applied at this time.
> + In summary, "MT6370_IRQ_OVPCTRL_UVP_D", "MT6370_IRQ_ATTACH" and
> + "MT6370_IRQ_CHG_MIVR" are required in this charger driver.
> + items:
> + - description: irq of "USB is plugged in"
> + - description: irq of "BC1.2 is done"
> + - description: irq of "Minimum Input Voltage Regulation loop is active"
> +
> + interrupt-names:
> + items:
> + - const: uvp_d_evt
> + - const: attach_i
> + - const: mivr
> +
> + io-channels:
> + description: |
> + Use ADC channel to read VBUS, IBUS, IBAT, etc., info.
> + minItems: 1
> + items:
> + - description: |
> + VBUS voltage with lower accuracy (+-75mV) but higher measure
> + range (1~22V)
> + - description: |
> + VBUS voltage with higher accuracy (+-30mV) but lower measure
> + range (1~9.76V)
> + - description: the main system input voltage
> + - description: battery voltage
> + - description: battery temperature-sense input voltage
> + - description: IBUS current (required)
> + - description: battery current
> + - description: |
> + regulated output voltage to supply for the PWM low-side gate driver
> + and the bootstrap capacitor
> + - description: IC junction temperature
> +
> + io-channel-names:
> + minItems: 1
> + items:
> + - const: vbusdiv5
> + - const: vbusdiv2
> + - const: vsys
> + - const: vbat
> + - const: ts_bat
> + - const: ibus
> + - const: ibat
> + - const: chg_vddp
> + - const: temp_jc
> +
> + usb-otg-vbus-regulator:
> + type: object
> + description: OTG boost regulator.
> + unevaluatedProperties: false
> + $ref: /schemas/regulator/regulator.yaml#
> +
> + properties:
> + enable-gpios:
> + maxItems: 1
> +
> +required:
> + - compatible
> + - interrupts
> + - interrupt-names
> + - io-channels
> +
> +additionalProperties: false
> +
> +...
> --
> 2.7.4
>

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