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Message-Id: <20250604-s2mpg1x-regulators-v1-3-6038740f49ae@linaro.org> Date: Wed, 04 Jun 2025 16:25:42 +0100 From: André Draszik <andre.draszik@...aro.org> To: Tudor Ambarus <tudor.ambarus@...aro.org>, Rob Herring <robh@...nel.org>, Conor Dooley <conor+dt@...nel.org>, Krzysztof Kozlowski <krzk@...nel.org>, Liam Girdwood <lgirdwood@...il.com>, Mark Brown <broonie@...nel.org>, Lee Jones <lee@...nel.org>, Linus Walleij <linus.walleij@...aro.org>, Bartosz Golaszewski <brgl@...ev.pl> Cc: Peter Griffin <peter.griffin@...aro.org>, Will McVicker <willmcvicker@...gle.com>, kernel-team@...roid.com, linux-kernel@...r.kernel.org, linux-samsung-soc@...r.kernel.org, devicetree@...r.kernel.org, linux-gpio@...r.kernel.org, André Draszik <andre.draszik@...aro.org> Subject: [PATCH 03/17] regulator: dt-bindings: add s2mpg11-pmic regulators The S2MPG11 PMIC is a Power Management IC for mobile applications with buck converters, various LDOs, and power meters. It typically complements an S2MPG10 PMIC in a main/sub configuration as the sub-PMIC. S2MPG11 has 12 buck, 1 buck-boost, and 15 LDO rails. Several of these can either be controlled via software or via external signals, e.g. input pins connected to a main processor's GPIO pins. Add documentation related to the regulator (buck & ldo) parts like devicetree definitions, regulator naming patterns, and additional properties. Since S2MPG11 is typically used as the sub-PMIC together with an S2MP10 as the main-PMIC, the datasheet and the binding both suffix the rails with an 's'. Signed-off-by: André Draszik <andre.draszik@...aro.org> --- Note: checkpatch suggests to update MAINTAINERS, but the new file is covered already due to using a wildcard. --- .../regulator/samsung,s2mpg11-regulator.yaml | 150 +++++++++++++++++++++ .../regulator/samsung,s2mpg10-regulator.h | 18 +++ 2 files changed, 168 insertions(+) diff --git a/Documentation/devicetree/bindings/regulator/samsung,s2mpg11-regulator.yaml b/Documentation/devicetree/bindings/regulator/samsung,s2mpg11-regulator.yaml new file mode 100644 index 0000000000000000000000000000000000000000..f2d596642501c197e2911ee3b9caac189cf541a4 --- /dev/null +++ b/Documentation/devicetree/bindings/regulator/samsung,s2mpg11-regulator.yaml @@ -0,0 +1,150 @@ +# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/regulator/samsung,s2mpg11-regulator.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Samsung S2MPG11 Power Management IC regulators + +maintainers: + - André Draszik <andre.draszik@...aro.org> + +description: | + This is part of the device tree bindings for the S2MG11 Power Management IC + (PMIC). + + The S2MPG11 PMIC provides 12 buck, 1 buck-boost, and 15 LDO regulators. + + See also Documentation/devicetree/bindings/mfd/samsung,s2mps11.yaml for + additional information and example. + +definitions: + s2mpg11-ext-control: + properties: + samsung,ext-control: + description: | + These rails can be controlled via one of several possible external + (hardware) signals. If so, this property configures the signal the PMIC + should monitor. The following values generally corresponding to the + respective on-chip pin are valid: + - 0 # S2MPG11_PCTRLSEL_ON - always on + - 1 # S2MPG11_PCTRLSEL_PWREN - PWREN pin + - 2 # S2MPG11_PCTRLSEL_PWREN_TRG - PWREN_TRG bit in MIMICKING_CTRL + - 3 # S2MPG11_PCTRLSEL_PWREN_MIF - PWREN_MIF pin + - 4 # S2MPG11_PCTRLSEL_PWREN_MIF_TRG - PWREN_MIF_TRG bit in MIMICKING_CTRL + - 5 # S2MPG11_PCTRLSEL_AP_ACTIVE_N - ~AP_ACTIVE_N pin + - 6 # S2MPG11_PCTRLSEL_AP_ACTIVE_N_TRG - ~AP_ACTIVE_N_TRG bit in MIMICKING_CTRL + - 7 # S2MPG11_PCTRLSEL_G3D_EN - G3D_EN pin + - 8 # S2MPG11_PCTRLSEL_G3D_EN2 - G3D_EN & ~AP_ACTIVE_N pins + - 9 # S2MPG11_PCTRLSEL_AOC_VDD - AOC_VDD pin + - 10 # S2MPG11_PCTRLSEL_AOC_RET - AOC_RET pin + - 11 # S2MPG11_PCTRLSEL_UFS_EN - UFS_EN pin + - 12 # S2MPG11_PCTRLSEL_LDO13S_EN - VLDO13S_EN pin + + $ref: /schemas/types.yaml#/definitions/uint32 + minimum: 0 + maximum: 12 + + samsung,ext-control-gpios: + description: | + For rails where external control is done via a GPIO, this optional + property describes the GPIO line used. + + maxItems: 1 + + dependentRequired: + samsung,ext-control-gpios: [ "samsung,ext-control" ] + +properties: + buckboost: + type: object + $ref: regulator.yaml# + unevaluatedProperties: false + description: + Properties for the buck-boost regulator. + + properties: + regulator-ramp-delay: false + +patternProperties: + # 12 bucks + "^buck(([1-9]|10)s|[ad])$": + type: object + $ref: regulator.yaml# + unevaluatedProperties: false + description: + Properties for a single buck regulator. + + properties: + regulator-ramp-delay: + enum: [6250, 12500, 25000] + default: 6250 + + allOf: + - $ref: "#/definitions/s2mpg11-ext-control" + + # 11 standard LDOs + "^ldo([3-79]|1[01245])s$": + type: object + $ref: regulator.yaml# + unevaluatedProperties: false + description: + Properties for a single LDO regulator. + + properties: + regulator-ramp-delay: false + + # 2 LDOs with possible external control + "^ldo(8|13)s$": + type: object + $ref: regulator.yaml# + unevaluatedProperties: false + description: + Properties for single LDO regulator. + + properties: + regulator-ramp-delay: false + + allOf: + - $ref: "#/definitions/s2mpg11-ext-control" + + # 2 LDOs with ramp support and possible external control + "^ldo[12]s$": + type: object + $ref: regulator.yaml# + unevaluatedProperties: false + description: + Properties for a single LDO regulator. + + properties: + regulator-ramp-delay: + enum: [6250, 12500] + default: 6250 + + allOf: + - $ref: "#/definitions/s2mpg11-ext-control" + +additionalProperties: false + +allOf: + - if: + anyOf: + - required: [buck4s] + - required: [buck6s] + - required: [buck7s] + - required: [buck10s] + - required: [buckboost] + then: + patternProperties: + "^buck([467]|10|boost)s$": + properties: + samsung,ext-control: false + + - if: + required: + - buckboost + then: + properties: + buckboost: + properties: + regulator-ramp-delay: false diff --git a/include/dt-bindings/regulator/samsung,s2mpg10-regulator.h b/include/dt-bindings/regulator/samsung,s2mpg10-regulator.h index 1d4e34a756efa46afeb9f018c3e8644ebc373b07..0203946b7215eca615c27482be906c3100b899ee 100644 --- a/include/dt-bindings/regulator/samsung,s2mpg10-regulator.h +++ b/include/dt-bindings/regulator/samsung,s2mpg10-regulator.h @@ -22,6 +22,10 @@ * * ldo20m supports external control, but using a different set of control * signals. + * + * S2MPG11 regulators supporting these are: + * - buck1s .. buck3s buck5s buck8s buck9s bucka buckd + * - ldo1s ldo2s ldo8s ldo13s */ #define S2MPG10_PCTRLSEL_ON 0x0 /* always on */ #define S2MPG10_PCTRLSEL_PWREN 0x1 /* PWREN pin */ @@ -45,4 +49,18 @@ #define S2MPG10_PCTRLSEL_LDO20M_SFR 0x3 /* LDO20M_SFR bit in LDO_CTRL1 register */ #define S2MPG10_PCTRLSEL_LDO20M_OFF 0x4 /* disable */ +#define S2MPG11_PCTRLSEL_ON 0x0 /* always on */ +#define S2MPG11_PCTRLSEL_PWREN 0x1 /* PWREN pin */ +#define S2MPG11_PCTRLSEL_PWREN_TRG 0x2 /* PWREN_TRG bit in MIMICKING_CTRL */ +#define S2MPG11_PCTRLSEL_PWREN_MIF 0x3 /* PWREN_MIF pin */ +#define S2MPG11_PCTRLSEL_PWREN_MIF_TRG 0x4 /* PWREN_MIF_TRG bit in MIMICKING_CTRL */ +#define S2MPG11_PCTRLSEL_AP_ACTIVE_N 0x5 /* ~AP_ACTIVE_N pin */ +#define S2MPG11_PCTRLSEL_AP_ACTIVE_N_TRG 0x6 /* ~AP_ACTIVE_N_TRG bit in MIMICKING_CTRL */ +#define S2MPG11_PCTRLSEL_G3D_EN 0x7 /* G3D_EN pin */ +#define S2MPG11_PCTRLSEL_G3D_EN2 0x8 /* G3D_EN & ~AP_ACTIVE_N pins */ +#define S2MPG11_PCTRLSEL_AOC_VDD 0x9 /* AOC_VDD pin */ +#define S2MPG11_PCTRLSEL_AOC_RET 0xa /* AOC_RET pin */ +#define S2MPG11_PCTRLSEL_UFS_EN 0xb /* UFS_EN pin */ +#define S2MPG11_PCTRLSEL_LDO13S_EN 0xc /* VLDO13S_EN pin */ + #endif /* _DT_BINDINGS_REGULATOR_SAMSUNG_S2MPG10_H */ -- 2.49.0.1204.g71687c7c1d-goog
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