| Message ID | 20221005-mt6357-support-v7-4-477e60126749@baylibre.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | Add MediaTek MT6357 PMIC support | expand |
On Tue, 29 Nov 2022, Alexandre Mergnat wrote: > Currently, almost all MT63XX PMIC are documented mfd/mt6397.txt. > Unfortunately, the PMICs haven't always similar HW sub-features. > To have a better human readable schema, I chose to make one PMIC schema > to match the exact HW capabilities instead of convert mt6397.txt to > mediatek,mt63xx.yaml and put a bunch of properties behind > "if contain ... then ..." > > - add interrupt property > - change property refs to match with new yaml documentation > > Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> > Signed-off-by: Alexandre Mergnat <amergnat@baylibre.com> Acked-by: Lee Jones <lee@kernel.org> > --- > .../devicetree/bindings/mfd/mediatek,mt6357.yaml | 111 +++++++++++++++++++++ > 1 file changed, 111 insertions(+) > > diff --git a/Documentation/devicetree/bindings/mfd/mediatek,mt6357.yaml b/Documentation/devicetree/bindings/mfd/mediatek,mt6357.yaml > new file mode 100644 > index 000000000000..837a77013d57 > --- /dev/null > +++ b/Documentation/devicetree/bindings/mfd/mediatek,mt6357.yaml > @@ -0,0 +1,111 @@ > +# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause > +%YAML 1.2 > +--- > +$id: http://devicetree.org/schemas/mfd/mediatek,mt6357.yaml# > +$schema: http://devicetree.org/meta-schemas/core.yaml# > + > +title: MediaTek MT6357 PMIC > + > +maintainers: > + - Flora Fu <flora.fu@mediatek.com> > + - Alexandre Mergnat <amergnat@baylibre.com> > + > +description: | > + MT6357 is a power management system chip containing 5 buck > + converters and 29 LDOs. Supported features are audio codec, > + USB battery charging, fuel gauge, RTC > + > + This is a multifunction device with the following sub modules: > + - Regulator > + - RTC > + - Keys > + > + It is interfaced to host controller using SPI interface by a proprietary hardware > + called PMIC wrapper or pwrap. This MFD is a child device of pwrap. > + See the following for pwrap node definitions: > + Documentation/devicetree/bindings/soc/mediatek/mediatek,pwrap.yaml > + > +properties: > + compatible: > + const: mediatek,mt6357 > + > + interrupts: > + maxItems: 1 > + > + interrupt-controller: true > + > + "#interrupt-cells": > + const: 2 > + > + regulators: > + type: object > + $ref: /schemas/regulator/mediatek,mt6357-regulator.yaml > + description: > + List of MT6357 BUCKs and LDOs regulators. > + > + rtc: > + type: object > + $ref: /schemas/rtc/rtc.yaml# > + description: > + MT6357 Real Time Clock. > + properties: > + compatible: > + const: mediatek,mt6357-rtc > + start-year: true > + required: > + - compatible > + > + keys: > + type: object > + $ref: /schemas/input/mediatek,pmic-keys.yaml > + description: > + MT6357 power and home keys. > + > +required: > + - compatible > + - regulators > + > +additionalProperties: false > + > +examples: > + - | > + #include <dt-bindings/interrupt-controller/arm-gic.h> > + > + pwrap { > + pmic { > + compatible = "mediatek,mt6357"; > + > + interrupt-parent = <&pio>; > + interrupts = <145 IRQ_TYPE_LEVEL_HIGH>; > + interrupt-controller; > + #interrupt-cells = <2>; > + > + regulators { > + mt6357_vproc_reg: buck-vproc { > + regulator-name = "vproc"; > + regulator-min-microvolt = <518750>; > + regulator-max-microvolt = <1312500>; > + regulator-ramp-delay = <6250>; > + regulator-enable-ramp-delay = <220>; > + regulator-always-on; > + }; > + > + // ... > + > + mt6357_vusb33_reg: ldo-vusb33 { > + regulator-name = "vusb33"; > + regulator-min-microvolt = <3000000>; > + regulator-max-microvolt = <3100000>; > + regulator-enable-ramp-delay = <264>; > + }; > + }; > + > + rtc { > + compatible = "mediatek,mt6357-rtc"; > + }; > + > + keys { > + compatible = "mediatek,mt6357-keys"; > + }; > + }; > + }; >
diff --git a/Documentation/devicetree/bindings/mfd/mediatek,mt6357.yaml b/Documentation/devicetree/bindings/mfd/mediatek,mt6357.yaml new file mode 100644 index 000000000000..837a77013d57 --- /dev/null +++ b/Documentation/devicetree/bindings/mfd/mediatek,mt6357.yaml @@ -0,0 +1,111 @@ +# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/mfd/mediatek,mt6357.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: MediaTek MT6357 PMIC + +maintainers: + - Flora Fu <flora.fu@mediatek.com> + - Alexandre Mergnat <amergnat@baylibre.com> + +description: | + MT6357 is a power management system chip containing 5 buck + converters and 29 LDOs. Supported features are audio codec, + USB battery charging, fuel gauge, RTC + + This is a multifunction device with the following sub modules: + - Regulator + - RTC + - Keys + + It is interfaced to host controller using SPI interface by a proprietary hardware + called PMIC wrapper or pwrap. This MFD is a child device of pwrap. + See the following for pwrap node definitions: + Documentation/devicetree/bindings/soc/mediatek/mediatek,pwrap.yaml + +properties: + compatible: + const: mediatek,mt6357 + + interrupts: + maxItems: 1 + + interrupt-controller: true + + "#interrupt-cells": + const: 2 + + regulators: + type: object + $ref: /schemas/regulator/mediatek,mt6357-regulator.yaml + description: + List of MT6357 BUCKs and LDOs regulators. + + rtc: + type: object + $ref: /schemas/rtc/rtc.yaml# + description: + MT6357 Real Time Clock. + properties: + compatible: + const: mediatek,mt6357-rtc + start-year: true + required: + - compatible + + keys: + type: object + $ref: /schemas/input/mediatek,pmic-keys.yaml + description: + MT6357 power and home keys. + +required: + - compatible + - regulators + +additionalProperties: false + +examples: + - | + #include <dt-bindings/interrupt-controller/arm-gic.h> + + pwrap { + pmic { + compatible = "mediatek,mt6357"; + + interrupt-parent = <&pio>; + interrupts = <145 IRQ_TYPE_LEVEL_HIGH>; + interrupt-controller; + #interrupt-cells = <2>; + + regulators { + mt6357_vproc_reg: buck-vproc { + regulator-name = "vproc"; + regulator-min-microvolt = <518750>; + regulator-max-microvolt = <1312500>; + regulator-ramp-delay = <6250>; + regulator-enable-ramp-delay = <220>; + regulator-always-on; + }; + + // ... + + mt6357_vusb33_reg: ldo-vusb33 { + regulator-name = "vusb33"; + regulator-min-microvolt = <3000000>; + regulator-max-microvolt = <3100000>; + regulator-enable-ramp-delay = <264>; + }; + }; + + rtc { + compatible = "mediatek,mt6357-rtc"; + }; + + keys { + compatible = "mediatek,mt6357-keys"; + }; + }; + };