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The MT6366 PMIC is mostly, but not fully, compatible with MT6358. It has
a different set of regulators. Specifically, it lacks the camera related
VCAM* LDOs and VLDO28, but has additional VM18, VMDDR, and VSRAM_CORE LDOs.
The PMICs contain a chip ID register that can be used to detect which
exact model is preset, so it is possible to share a common base
compatible string.
Add a separate compatible for the MT6366 PMIC, with a fallback to the
MT6358 PMIC.
Fixes: 49be163055 ("dt-bindings: mfd: Add compatible for the MediaTek MT6366 PMIC")
Signed-off-by: Chen-Yu Tsai <wenst@chromium.org>
Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Link: https://lore.kernel.org/r/20230928085537.3246669-2-wenst@chromium.org
Signed-off-by: Lee Jones <lee@kernel.org>
110 lines
2.9 KiB
Text
110 lines
2.9 KiB
Text
MediaTek MT6397/MT6323 Multifunction Device Driver
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MT6397/MT6323 is a multifunction device with the following sub modules:
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- Regulator
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- RTC
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- Audio codec
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- GPIO
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- Clock
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- LED
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- Keys
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- Power controller
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It is interfaced to host controller using SPI interface by a proprietary hardware
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called PMIC wrapper or pwrap. MT6397/MT6323 MFD is a child device of pwrap.
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See the following for pwarp node definitions:
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../soc/mediatek/mediatek,pwrap.yaml
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This document describes the binding for MFD device and its sub module.
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Required properties:
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compatible:
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"mediatek,mt6323" for PMIC MT6323
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"mediatek,mt6331" for PMIC MT6331 and MT6332
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"mediatek,mt6357" for PMIC MT6357
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"mediatek,mt6358" for PMIC MT6358
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"mediatek,mt6359" for PMIC MT6359
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"mediatek,mt6366", "mediatek,mt6358" for PMIC MT6366
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"mediatek,mt6397" for PMIC MT6397
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Optional subnodes:
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- rtc
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Required properties: Should be one of follows
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- compatible: "mediatek,mt6323-rtc"
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- compatible: "mediatek,mt6331-rtc"
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- compatible: "mediatek,mt6358-rtc"
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- compatible: "mediatek,mt6397-rtc"
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For details, see ../rtc/rtc-mt6397.txt
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- regulators
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Required properties:
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- compatible: "mediatek,mt6323-regulator"
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see ../regulator/mt6323-regulator.txt
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- compatible: "mediatek,mt6358-regulator"
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- compatible: "mediatek,mt6366-regulator", "mediatek-mt6358-regulator"
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see ../regulator/mt6358-regulator.txt
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- compatible: "mediatek,mt6397-regulator"
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see ../regulator/mt6397-regulator.txt
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- codec
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Required properties:
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- compatible: "mediatek,mt6397-codec" or "mediatek,mt6358-sound"
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- clk
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Required properties:
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- compatible: "mediatek,mt6397-clk"
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- led
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Required properties:
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- compatible: "mediatek,mt6323-led"
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see ../leds/leds-mt6323.txt
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- keys
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Required properties: Should be one of the following
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- compatible: "mediatek,mt6323-keys"
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- compatible: "mediatek,mt6331-keys"
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- compatible: "mediatek,mt6397-keys"
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see ../input/mtk-pmic-keys.txt
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- power-controller
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Required properties:
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- compatible: "mediatek,mt6323-pwrc"
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For details, see ../power/reset/mt6323-poweroff.txt
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- pin-controller
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Required properties:
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- compatible: "mediatek,mt6397-pinctrl"
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For details, see ../pinctrl/pinctrl-mt65xx.txt
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Example:
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pwrap: pwrap@1000f000 {
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compatible = "mediatek,mt8135-pwrap";
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...
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pmic {
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compatible = "mediatek,mt6397";
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codec: mt6397codec {
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compatible = "mediatek,mt6397-codec";
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};
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regulators {
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compatible = "mediatek,mt6397-regulator";
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mt6397_vpca15_reg: buck_vpca15 {
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regulator-compatible = "buck_vpca15";
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regulator-name = "vpca15";
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regulator-min-microvolt = <850000>;
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regulator-max-microvolt = <1400000>;
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regulator-ramp-delay = <12500>;
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regulator-always-on;
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};
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mt6397_vgp4_reg: ldo_vgp4 {
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regulator-compatible = "ldo_vgp4";
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regulator-name = "vgp4";
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regulator-min-microvolt = <1200000>;
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regulator-max-microvolt = <3300000>;
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regulator-enable-ramp-delay = <218>;
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};
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};
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};
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};
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