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 > --- Acked-by: Sebastian Reichel <sebastian.reichel@xxxxxxxxxxxxx> -- 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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