diff options
| author | Andreas Kemnade <andreas@kemnade.info> | 2025-11-15 07:50:50 +0100 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2025-11-20 16:29:16 +0000 |
| commit | 80bbdefdfb4174ff7e5d4f17658c845ef8f0b623 (patch) | |
| tree | 968e2652d8473de0cb0dd1f85223647618606160 | |
| parent | 0d360d54ea6d0fb3928205d6c67801d1719dd958 (diff) | |
dt-bindings: regulator: Add Fitipower FP9931/JD9930
Document the FP9931/JD9930. As the FP9931 is a clear subset of the JD9930,
define it as a fallback compatible. GPIO names are same as in the datasheet
except for the EN pad which is described as "enable".
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Andreas Kemnade <andreas@kemnade.info>
Link: https://patch.msgid.link/20251115-fp9931-submit-v3-2-92f5d0772b68@kemnade.info
Signed-off-by: Mark Brown <broonie@kernel.org>
| -rw-r--r-- | Documentation/devicetree/bindings/regulator/fitipower,fp9931.yaml | 110 |
1 files changed, 110 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/regulator/fitipower,fp9931.yaml b/Documentation/devicetree/bindings/regulator/fitipower,fp9931.yaml new file mode 100644 index 000000000000..c6585e3bacbe --- /dev/null +++ b/Documentation/devicetree/bindings/regulator/fitipower,fp9931.yaml @@ -0,0 +1,110 @@ +# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/regulator/fitipower,fp9931.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: FitiPower FP9931/JD9930 Power Management Integrated Circuit + +maintainers: + - Andreas Kemnade <andreas@kemnade.info> + +description: + FP9931 is a Power Management IC to provide Power for EPDs with one 3.3V + switch, 2 symmetric LDOs behind 2 DC/DC converters, and one unsymmetric + regulator for a compensation voltage. + JD9930 has in addition some kind of night mode. + +properties: + compatible: + oneOf: + - const: fitipower,fp9931 + + - items: + - const: fitipower,jd9930 + - const: fitipower,fp9931 + + reg: + maxItems: 1 + + enable-gpios: + maxItems: 1 + + pg-gpios: + maxItems: 1 + + en-ts-gpios: + maxItems: 1 + + xon-gpios: + maxItems: 1 + + vin-supply: + description: + Supply for the whole chip. Some vendor kernels and devicetrees + declare this as a non-existing GPIO named "pwrall". + + fitipower,tdly-ms: + description: + Power up soft start delay settings tDLY1-4 bitfields in the + POWERON_DELAY register + items: + - enum: [0, 1, 2, 4] + - enum: [0, 1, 2, 4] + - enum: [0, 1, 2, 4] + - enum: [0, 1, 2, 4] + + regulators: + type: object + additionalProperties: false + patternProperties: + "^(vcom|vposneg|v3p3)$": + unevaluatedProperties: false + type: object + $ref: /schemas/regulator/regulator.yaml + +required: + - compatible + - reg + - pg-gpios + - enable-gpios + +additionalProperties: false + +examples: + - | + #include <dt-bindings/gpio/gpio.h> + i2c { + #address-cells = <1>; + #size-cells = <0>; + + pmic@18 { + compatible = "fitipower,fp9931"; + reg = <0x18>; + pinctrl-names = "default"; + pinctrl-0 = <&pinctrl_fp9931_gpio>; + vin-supply = <&epd_pmic_supply>; + pg-gpios = <&gpio2 7 GPIO_ACTIVE_HIGH>; + en-ts-gpios = <&gpio2 9 GPIO_ACTIVE_HIGH>; + enable-gpios = <&gpio2 8 GPIO_ACTIVE_HIGH>; + fitipower,tdly-ms = <2 2 4 4>; + + regulators { + vcom { + regulator-name = "vcom"; + regulator-min-microvolt = <2352840>; + regulator-max-microvolt = <2352840>; + }; + + vposneg { + regulator-name = "vposneg"; + regulator-min-microvolt = <15060000>; + regulator-max-microvolt = <15060000>; + }; + + v3p3 { + regulator-name = "v3p3"; + }; + }; + }; + }; |