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author | Alexandre Mergnat <amergnat@baylibre.com> | 2023-01-02 17:06:04 +0100 |
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committer | Matthias Brugger <matthias.bgg@gmail.com> | 2023-01-19 18:25:44 +0100 |
commit | 22282276ea7907a4faa230c21faa021b94ff2164 (patch) | |
tree | 57ff8910938b2fa0781d209ceba1387e42a4b1d5 /Documentation | |
parent | dt-bindings: soc: mediatek: convert pwrap documentation (diff) | |
download | linux-22282276ea7907a4faa230c21faa021b94ff2164.tar.xz linux-22282276ea7907a4faa230c21faa021b94ff2164.zip |
dt-bindings: mfd: mediatek: Add bindings for MT6357 PMIC
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>
Acked-by: Lee Jones <lee@kernel.org>
Signed-off-by: Alexandre Mergnat <amergnat@baylibre.com>
Link: https://lore.kernel.org/r/20221005-mt6357-support-v8-3-560caaafee53@baylibre.com
Signed-off-by: Matthias Brugger <matthias.bgg@gmail.com>
Diffstat (limited to 'Documentation')
-rw-r--r-- | Documentation/devicetree/bindings/mfd/mediatek,mt6357.yaml | 111 |
1 files changed, 111 insertions, 0 deletions
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"; + }; + }; + }; |