diff options
69 files changed, 1652 insertions, 381 deletions
diff --git a/Documentation/devicetree/bindings/mfd/max8998.txt b/Documentation/devicetree/bindings/mfd/max8998.txt index 5f2f07c09c90..4ed52184d081 100644 --- a/Documentation/devicetree/bindings/mfd/max8998.txt +++ b/Documentation/devicetree/bindings/mfd/max8998.txt @@ -73,6 +73,8 @@ number as described in MAX8998 datasheet. - ESAFEOUT1: (ldo19) - ESAFEOUT2: (ld020) + - CHARGER: main battery charger current control + Standard regulator bindings are used inside regulator subnodes. Check Documentation/devicetree/bindings/regulator/regulator.txt for more details. @@ -113,5 +115,11 @@ Example: regulator-always-on; regulator-boot-on; }; + + charger_reg: CHARGER { + regulator-name = "CHARGER"; + regulator-min-microamp = <90000>; + regulator-max-microamp = <800000>; + }; }; }; diff --git a/Documentation/devicetree/bindings/regulator/anatop-regulator.txt b/Documentation/devicetree/bindings/regulator/anatop-regulator.txt deleted file mode 100644 index a3106c72fbea..000000000000 --- a/Documentation/devicetree/bindings/regulator/anatop-regulator.txt +++ /dev/null @@ -1,40 +0,0 @@ -Anatop Voltage regulators - -Required properties: -- compatible: Must be "fsl,anatop-regulator" -- regulator-name: A string used as a descriptive name for regulator outputs -- anatop-reg-offset: Anatop MFD register offset -- anatop-vol-bit-shift: Bit shift for the register -- anatop-vol-bit-width: Number of bits used in the register -- anatop-min-bit-val: Minimum value of this register -- anatop-min-voltage: Minimum voltage of this regulator -- anatop-max-voltage: Maximum voltage of this regulator - -Optional properties: -- anatop-delay-reg-offset: Anatop MFD step time register offset -- anatop-delay-bit-shift: Bit shift for the step time register -- anatop-delay-bit-width: Number of bits used in the step time register -- vin-supply: The supply for this regulator -- anatop-enable-bit: Regulator enable bit offset - -Any property defined as part of the core regulator -binding, defined in regulator.txt, can also be used. - -Example: - - regulator-vddpu { - compatible = "fsl,anatop-regulator"; - regulator-name = "vddpu"; - regulator-min-microvolt = <725000>; - regulator-max-microvolt = <1300000>; - regulator-always-on; - anatop-reg-offset = <0x140>; - anatop-vol-bit-shift = <9>; - anatop-vol-bit-width = <5>; - anatop-delay-reg-offset = <0x170>; - anatop-delay-bit-shift = <24>; - anatop-delay-bit-width = <2>; - anatop-min-bit-val = <1>; - anatop-min-voltage = <725000>; - anatop-max-voltage = <1300000>; - }; diff --git a/Documentation/devicetree/bindings/regulator/anatop-regulator.yaml b/Documentation/devicetree/bindings/regulator/anatop-regulator.yaml new file mode 100644 index 000000000000..e7b3abe30363 --- /dev/null +++ b/Documentation/devicetree/bindings/regulator/anatop-regulator.yaml @@ -0,0 +1,94 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/regulator/anatop-regulator.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Freescale Anatop Voltage Regulators + +maintainers: + - Ying-Chun Liu (PaulLiu) <paul.liu@linaro.org> + +allOf: + - $ref: "regulator.yaml#" + +properties: + compatible: + const: fsl,anatop-regulator + + regulator-name: true + + anatop-reg-offset: + $ref: '/schemas/types.yaml#/definitions/uint32' + description: u32 value representing the anatop MFD register offset. + + anatop-vol-bit-shift: + $ref: '/schemas/types.yaml#/definitions/uint32' + description: u32 value representing the bit shift for the register. + + anatop-vol-bit-width: + $ref: '/schemas/types.yaml#/definitions/uint32' + description: u32 value representing the number of bits used in the register. + + anatop-min-bit-val: + $ref: '/schemas/types.yaml#/definitions/uint32' + description: u32 value representing the minimum value of this register. + + anatop-min-voltage: + $ref: '/schemas/types.yaml#/definitions/uint32' + description: u32 value representing the minimum voltage of this regulator. + + anatop-max-voltage: + $ref: '/schemas/types.yaml#/definitions/uint32' + description: u32 value representing the maximum voltage of this regulator. + + anatop-delay-reg-offset: + $ref: '/schemas/types.yaml#/definitions/uint32' + description: u32 value representing the anatop MFD step time register offset. + + anatop-delay-bit-shift: + $ref: '/schemas/types.yaml#/definitions/uint32' + description: u32 value representing the bit shift for the step time register. + + anatop-delay-bit-width: + $ref: '/schemas/types.yaml#/definitions/uint32' + description: u32 value representing the number of bits used in the step time register. + + anatop-enable-bit: + $ref: '/schemas/types.yaml#/definitions/uint32' + description: u32 value representing regulator enable bit offset. + + vin-supply: + $ref: '/schemas/types.yaml#/definitions/phandle' + description: input supply phandle. + +required: + - compatible + - regulator-name + - anatop-reg-offset + - anatop-vol-bit-shift + - anatop-vol-bit-width + - anatop-min-bit-val + - anatop-min-voltage + - anatop-max-voltage + +unevaluatedProperties: false + +examples: + - | + regulator-vddpu { + compatible = "fsl,anatop-regulator"; + regulator-name = "vddpu"; + regulator-min-microvolt = <725000>; + regulator-max-microvolt = <1300000>; + regulator-always-on; + anatop-reg-offset = <0x140>; + anatop-vol-bit-shift = <9>; + anatop-vol-bit-width = <5>; + anatop-delay-reg-offset = <0x170>; + anatop-delay-bit-shift = <24>; + anatop-delay-bit-width = <2>; + anatop-min-bit-val = <1>; + anatop-min-voltage = <725000>; + anatop-max-voltage = <1300000>; + }; diff --git a/Documentation/devicetree/bindings/regulator/maxim,max77826.yaml b/Documentation/devicetree/bindings/regulator/maxim,max77826.yaml new file mode 100644 index 000000000000..19cbd5eb2897 --- /dev/null +++ b/Documentation/devicetree/bindings/regulator/maxim,max77826.yaml @@ -0,0 +1,68 @@ +# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/regulator/maxim,max77826.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Maxim Integrated MAX77826 PMIC + +maintainers: + - Iskren Chernev <iskren.chernev@gmail.com> + +properties: + $nodename: + pattern: "pmic@[0-9a-f]{1,2}" + compatible: + enum: + - maxim,max77826 + + reg: + maxItems: 1 + + regulators: + type: object + allOf: + - $ref: regulator.yaml# + description: | + list of regulators provided by this controller, must be named + after their hardware counterparts LDO[1-15], BUCK and BUCKBOOST + + patternProperties: + "^LDO([1-9]|1[0-5])$": + type: object + allOf: + - $ref: regulator.yaml# + + "^BUCK|BUCKBOOST$": + type: object + allOf: + - $ref: regulator.yaml# + + additionalProperties: false + +required: + - compatible + - reg + - regulators + +additionalProperties: false + +examples: + - | + i2c { + #address-cells = <1>; + #size-cells = <0>; + + pmic@69 { + compatible = "maxim,max77826"; + reg = <0x69>; + + regulators { + LDO2 { + regulator-min-microvolt = <650000>; + regulator-max-microvolt = <3587500>; + }; + }; + }; + }; +... diff --git a/MAINTAINERS b/MAINTAINERS index 6bc4cdb20038..cbfdf73029c6 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -9748,6 +9748,13 @@ F: drivers/lightnvm/ F: include/linux/lightnvm.h F: include/uapi/linux/lightnvm.h +LINEAR RANGES HELPERS +M: Mark Brown <broonie@kernel.org> +R: Matti Vaittinen <matti.vaittinen@fi.rohmeurope.com> +F: lib/linear_ranges.c +F: lib/test_linear_ranges.c +F: include/linux/linear_range.h + LINUX FOR POWER MACINTOSH M: Benjamin Herrenschmidt <benh@kernel.crashing.org> L: linuxppc-dev@lists.ozlabs.org diff --git a/drivers/power/supply/bd70528-charger.c b/drivers/power/supply/bd70528-charger.c index b8e1ec106627..3b820110ecfa 100644 --- a/drivers/power/supply/bd70528-charger.c +++ b/drivers/power/supply/bd70528-charger.c @@ -335,14 +335,14 @@ static int bd70528_get_present(struct bd70528_psy *bdpsy, int *val) return 0; } -struct linear_range { +struct bd70528_linear_range { int min; int step; int vals; int low_sel; }; -static const struct linear_range current_limit_ranges[] = { +static const struct bd70528_linear_range current_limit_ranges[] = { { .min = 5, .step = 1, @@ -374,7 +374,7 @@ static const struct linear_range current_limit_ranges[] = { * voltage for low temperatures. The driver currently only reads * the charge current at room temperature. We do set both though. */ -static const struct linear_range warm_charge_curr[] = { +static const struct bd70528_linear_range warm_charge_curr[] = { { .min = 10, .step = 10, @@ -398,7 +398,7 @@ static const struct linear_range warm_charge_curr[] = { #define MAX_WARM_CHG_CURR_SEL 0x1f #define MIN_CHG_CURR_SEL 0x0 -static int find_value_for_selector_low(const struct linear_range *r, +static int find_value_for_selector_low(const struct bd70528_linear_range *r, int selectors, unsigned int sel, unsigned int *val) { @@ -420,7 +420,7 @@ static int find_value_for_selector_low(const struct linear_range *r, * I guess it is enough if we use voltage/current which is closest (below) * the requested? */ -static int find_selector_for_value_low(const struct linear_range *r, +static int find_selector_for_value_low(const struct bd70528_linear_range *r, int selectors, unsigned int val, unsigned int *sel, bool *found) { diff --git a/drivers/regulator/88pg86x.c b/drivers/regulator/88pg86x.c index d5ef55c81185..71cfa2c5de5e 100644 --- a/drivers/regulator/88pg86x.c +++ b/drivers/regulator/88pg86x.c @@ -11,13 +11,13 @@ static const struct regulator_ops pg86x_ops = { .list_voltage = regulator_list_voltage_linear_range, }; -static const struct regulator_linear_range pg86x_buck1_ranges[] = { +static const struct linear_range pg86x_buck1_ranges[] = { REGULATOR_LINEAR_RANGE( 0, 0, 10, 0), REGULATOR_LINEAR_RANGE(1000000, 11, 34, 25000), REGULATOR_LINEAR_RANGE(1600000, 35, 47, 50000), }; -static const struct regulator_linear_range pg86x_buck2_ranges[] = { +static const struct linear_range pg86x_buck2_ranges[] = { REGULATOR_LINEAR_RANGE( 0, 0, 15, 0), REGULATOR_LINEAR_RANGE(1000000, 16, 39, 25000), REGULATOR_LINEAR_RANGE(1600000, 40, 52, 50000), diff --git a/drivers/regulator/88pm800-regulator.c b/drivers/regulator/88pm800-regulator.c index 69ae25886181..d08ee81ed1ac 100644 --- a/drivers/regulator/88pm800-regulator.c +++ b/drivers/regulator/88pm800-regulator.c @@ -134,13 +134,13 @@ struct pm800_regulator_info { } /* Ranges are sorted in ascending order. */ -static const struct regulator_linear_range buck1_volt_range[] = { +static const struct linear_range buck1_volt_range[] = { REGULATOR_LINEAR_RANGE(600000, 0, 0x4f, 12500), REGULATOR_LINEAR_RANGE(1600000, 0x50, 0x54, 50000), }; /* BUCK 2~5 have same ranges. */ -static const struct regulator_linear_range buck2_5_volt_range[] = { +static const struct linear_range buck2_5_volt_range[] = { REGULATOR_LINEAR_RANGE(600000, 0, 0x4f, 12500), REGULATOR_LINEAR_RANGE(1600000, 0x50, 0x72, 50000), }; diff --git a/drivers/regulator/Kconfig b/drivers/regulator/Kconfig index f4b72cb098ef..8f677f5d79b4 100644 --- a/drivers/regulator/Kconfig +++ b/drivers/regulator/Kconfig @@ -1,6 +1,7 @@ # SPDX-License-Identifier: GPL-2.0-only menuconfig REGULATOR bool "Voltage and Current Regulator Support" + select LINEAR_RANGES help Generic Voltage and Current Regulator support. @@ -585,6 +586,16 @@ config REGULATOR_MAX77802 Exynos5420/Exynos5800 SoCs to control various voltages. It includes support for control of voltage and ramp speed. +config REGULATOR_MAX77826 + tristate "Maxim 77826 regulator" + depends on I2C + select REGMAP_I2C + help + This driver controls a Maxim 77826 regulator via I2C bus. + The regulator include 15 LDOs, BUCK and BUCK BOOST regulator. + It includes support for control of output voltage. This + regulator is found on the Samsung Galaxy S5 (klte) smartphone. + config REGULATOR_MC13XXX_CORE tristate diff --git a/drivers/regulator/Makefile b/drivers/regulator/Makefile index 6610ee001d9a..e8f163371071 100644 --- a/drivers/regulator/Makefile +++ b/drivers/regulator/Makefile @@ -74,6 +74,7 @@ obj-$(CONFIG_REGULATOR_MAX8998) += max8998.o obj-$(CONFIG_REGULATOR_MAX77686) += max77686-regulator.o obj-$(CONFIG_REGULATOR_MAX77693) += max77693-regulator.o obj-$(CONFIG_REGULATOR_MAX77802) += max77802-regulator.o +obj-$(CONFIG_REGULATOR_MAX77826) += max77826-regulator.o obj-$(CONFIG_REGULATOR_MC13783) += mc13783-regulator.o obj-$(CONFIG_REGULATOR_MC13892) += mc13892-regulator.o obj-$(CONFIG_REGULATOR_MC13XXX_CORE) += mc13xxx-regulator-core.o diff --git a/drivers/regulator/ab8500.c b/drivers/regulator/ab8500.c index f60e1b26c2d2..716ca5bb178e 100644 --- a/drivers/regulator/ab8500.c +++ b/drivers/regulator/ab8500.c @@ -139,17 +139,6 @@ static const unsigned int ldo_vintcore_voltages[] = { 1350000, }; -static const unsigned int ldo_sdio_voltages[] = { - 1160000, - 1050000, - 1100000, - 1500000, - 1800000, - 2200000, - 2910000, - 3050000, -}; - static const unsigned int fixed_1200000_voltage[] = { 1200000, }; @@ -166,10 +155,6 @@ static const unsigned int fixed_2050000_voltage[] = { 2050000, }; -static const unsigned int fixed_3300000_voltage[] = { - 3300000, -}; - static const unsigned int ldo_vana_voltages[] = { 1050000, 1075000, @@ -192,13 +177,6 @@ static const unsigned int ldo_vaudio_voltages[] = { 2600000, /* Duplicated in Vaudio and IsoUicc Control register. */ }; -static const unsigned int ldo_vdmic_voltages[] = { - 1800000, - 1900000, - 2000000, - 2850000, -}; - static DEFINE_MUTEX(shared_mode_mutex); static struct ab8500_shared_mode ldo_anamic1_shared; static struct ab8500_shared_mode ldo_anamic2_shared; diff --git a/drivers/regulator/act8865-regulator.c b/drivers/regulator/act8865-regulator.c index 0fa97f934df4..19b9742c9ecc 100644 --- a/drivers/regulator/act8865-regulator.c +++ b/drivers/regulator/act8865-regulator.c @@ -220,13 +220,13 @@ static const struct regmap_config act8865_regmap_config = { .val_bits = 8, }; -static const struct regulator_linear_range act8865_voltage_ranges[] = { +static const struct linear_range act8865_voltage_ranges[] = { REGULATOR_LINEAR_RANGE(600000, 0, 23, 25000), REGULATOR_LINEAR_RANGE(1200000, 24, 47, 50000), REGULATOR_LINEAR_RANGE(2400000, 48, 63, 100000), }; -static const struct regulator_linear_range act8600_sudcdc_voltage_ranges[] = { +static const struct linear_range act8600_sudcdc_voltage_ranges[] = { REGULATOR_LINEAR_RANGE(3000000, 0, 63, 0), REGULATOR_LINEAR_RANGE(3000000, 64, 159, 100000), REGULATOR_LINEAR_RANGE(12600000, 160, 191, 200000), diff --git a/drivers/regulator/act8945a-regulator.c b/drivers/regulator/act8945a-regulator.c index d2f804dbc785..6a62f946ccae 100644 --- a/drivers/regulator/act8945a-regulator.c +++ b/drivers/regulator/act8945a-regulator.c @@ -73,7 +73,7 @@ struct act8945a_pmic { u32 op_mode[ACT8945A_ID_MAX]; }; -static const struct regulator_linear_range act8945a_voltage_ranges[] = { +static const struct linear_range act8945a_voltage_ranges[] = { REGULATOR_LINEAR_RANGE(600000, 0, 23, 25000), REGULATOR_LINEAR_RANGE(1200000, 24, 47, 50000), REGULATOR_LINEAR_RANGE(2400000, 48, 63, 100000), diff --git a/drivers/regulator/arizona-ldo1.c b/drivers/regulator/arizona-ldo1.c index 1a3d7b720f5e..ade0bef4569d 100644 --- a/drivers/regulator/arizona-ldo1.c +++ b/drivers/regulator/arizona-ldo1.c @@ -87,7 +87,7 @@ static const struct regulator_ops arizona_ldo1_hc_ops = { .set_bypass = regulator_set_bypass_regmap, }; -static const struct regulator_linear_range arizona_ldo1_hc_ranges[] = { +static const struct linear_range arizona_ldo1_hc_ranges[] = { REGULATOR_LINEAR_RANGE(900000, 0, 0x6, 50000), REGULATOR_LINEAR_RANGE(1800000, 0x7, 0x7, 0), }; diff --git a/drivers/regulator/arizona-micsupp.c b/drivers/regulator/arizona-micsupp.c index ae1a5de3e57d..f6cfd3f6f0dd 100644 --- a/drivers/regulator/arizona-micsupp.c +++ b/drivers/regulator/arizona-micsupp.c @@ -125,7 +125,7 @@ static const struct regulator_ops arizona_micsupp_ops = { .set_bypass = arizona_micsupp_set_bypass, }; -static const struct regulator_linear_range arizona_micsupp_ranges[] = { +static const struct linear_range arizona_micsupp_ranges[] = { REGULATOR_LINEAR_RANGE(1700000, 0, 0x1e, 50000), REGULATOR_LINEAR_RANGE(3300000, 0x1f, 0x1f, 0), }; @@ -152,7 +152,7 @@ static const struct regulator_desc arizona_micsupp = { .owner = THIS_MODULE, }; -static const struct regulator_linear_range arizona_micsupp_ext_ranges[] = { +static const struct linear_range arizona_micsupp_ext_ranges[] = { REGULATOR_LINEAR_RANGE(900000, 0, 0x14, 25000), REGULATOR_LINEAR_RANGE(1500000, 0x15, 0x27, 100000), }; diff --git a/drivers/regulator/as3711-regulator.c b/drivers/regulator/as3711-regulator.c index ece88103f2fd..b6b9206969ae 100644 --- a/drivers/regulator/as3711-regulator.c +++ b/drivers/regulator/as3711-regulator.c @@ -103,18 +103,18 @@ static const struct regulator_ops as3711_dldo_ops = { .map_voltage = regulator_map_voltage_linear_range, }; -static const struct regulator_linear_range as3711_sd_ranges[] = { +static const struct linear_range as3711_sd_ranges[] = { REGULATOR_LINEAR_RANGE(612500, 0x1, 0x40, 12500), REGULATOR_LINEAR_RANGE(1425000, 0x41, 0x70, 25000), REGULATOR_LINEAR_RANGE(2650000, 0x71, 0x7f, 50000), }; -static const struct regulator_linear_range as3711_aldo_ranges[] = { +static const struct linear_range as3711_aldo_ranges[] = { REGULATOR_LINEAR_RANGE(1200000, 0, 0xf, 50000), REGULATOR_LINEAR_RANGE(1800000, 0x10, 0x1f, 100000), }; -static const struct regulator_linear_range as3711_dldo_ranges[] = { +static const struct linear_range as3711_dldo_ranges[] = { REGULATOR_LINEAR_RANGE(900000, 0, 0x10, 50000), REGULATOR_LINEAR_RANGE(1750000, 0x20, 0x3f, 50000), }; diff --git a/drivers/regulator/as3722-regulator.c b/drivers/regulator/as3722-regulator.c index bd5d0bacb08d..33ca197860b3 100644 --- a/drivers/regulator/as3722-regulator.c +++ b/drivers/regulator/as3722-regulator.c @@ -389,7 +389,7 @@ static const struct regulator_ops as3722_ldo6_extcntrl_ops = { .set_bypass = regulator_set_bypass_regmap, }; -static const struct regulator_linear_range as3722_ldo_ranges[] = { +static const struct linear_range as3722_ldo_ranges[] = { REGULATOR_LINEAR_RANGE(0, 0x00, 0x00, 0), REGULATOR_LINEAR_RANGE(825000, 0x01, 0x24, 25000), REGULATOR_LINEAR_RANGE(1725000, 0x40, 0x7F, 25000), @@ -487,7 +487,7 @@ static bool as3722_sd0_is_low_voltage(struct as3722_regulators *as3722_regs) return false; } -static const struct regulator_linear_range as3722_sd2345_ranges[] = { +static const struct linear_range as3722_sd2345_ranges[] = { REGULATOR_LINEAR_RANGE(0, 0x00, 0x00, 0), REGULATOR_LINEAR_RANGE(612500, 0x01, 0x40, 12500), REGULATOR_LINEAR_RANGE(1425000, 0x41, 0x70, 25000), diff --git a/drivers/regulator/axp20x-regulator.c b/drivers/regulator/axp20x-regulator.c index 1e6eb5b1f8d8..fbc95cadaf53 100644 --- a/drivers/regulator/axp20x-regulator.c +++ b/drivers/regulator/axp20x-regulator.c @@ -510,7 +510,7 @@ static const struct regulator_ops axp20x_ops_sw = { .is_enabled = regulator_is_enabled_regmap, }; -static const struct regulator_linear_range axp20x_ldo4_ranges[] = { +static const struct linear_range axp20x_ldo4_ranges[] = { REGULATOR_LINEAR_RANGE(1250000, AXP20X_LDO4_V_OUT_1250mV_START, AXP20X_LDO4_V_OUT_1250mV_END, @@ -638,7 +638,7 @@ static const struct regulator_desc axp22x_drivevbus_regulator = { }; /* DCDC ranges shared with AXP813 */ -static const struct regulator_linear_range axp803_dcdc234_ranges[] = { +static const struct linear_range axp803_dcdc234_ranges[] = { REGULATOR_LINEAR_RANGE(500000, AXP803_DCDC234_500mV_START, AXP803_DCDC234_500mV_END, @@ -649,7 +649,7 @@ static const struct regulator_linear_range axp803_dcdc234_ranges[] = { 20000), }; -static const struct regulator_linear_range axp803_dcdc5_ranges[] = { +static const struct linear_range axp803_dcdc5_ranges[] = { REGULATOR_LINEAR_RANGE(800000, AXP803_DCDC5_800mV_START, AXP803_DCDC5_800mV_END, @@ -660,7 +660,7 @@ static const struct regulator_linear_range axp803_dcdc5_ranges[] = { 20000), }; -static const struct regulator_linear_range axp803_dcdc6_ranges[] = { +static const struct linear_range axp803_dcdc6_ranges[] = { REGULATOR_LINEAR_RANGE(600000, AXP803_DCDC6_600mV_START, AXP803_DCDC6_600mV_END, @@ -672,7 +672,7 @@ static const struct regulator_linear_range axp803_dcdc6_ranges[] = { }; /* AXP806's CLDO2 and AXP809's DLDO1 share the same range */ -static const struct regulator_linear_range axp803_dldo2_ranges[] = { +static const struct linear_range axp803_dldo2_ranges[] = { REGULATOR_LINEAR_RANGE(700000, AXP803_DLDO2_700mV_START, AXP803_DLDO2_700mV_END, @@ -758,7 +758,7 @@ static const struct regulator_desc axp803_regulators[] = { AXP_DESC_FIXED(AXP803, RTC_LDO, "rtc-ldo", "ips", 3000), }; -static const struct regulator_linear_range axp806_dcdca_ranges[] = { +static const struct linear_range axp806_dcdca_ranges[] = { REGULATOR_LINEAR_RANGE(600000, AXP806_DCDCA_600mV_START, AXP806_DCDCA_600mV_END, @@ -769,7 +769,7 @@ static const struct regulator_linear_range axp806_dcdca_ranges[] = { 20000), }; -static const struct regulator_linear_range axp806_dcdcd_ranges[] = { +static const struct linear_range axp806_dcdcd_ranges[] = { REGULATOR_LINEAR_RANGE(600000, AXP806_DCDCD_600mV_START, AXP806_DCDCD_600mV_END, @@ -834,7 +834,7 @@ static const struct regulator_desc axp806_regulators[] = { AXP806_PWR_OUT_CTRL2, AXP806_PWR_OUT_SW_MASK), }; -static const struct regulator_linear_range axp809_dcdc4_ranges[] = { +static const struct linear_range axp809_dcdc4_ranges[] = { REGULATOR_LINEAR_RANGE(600000, AXP809_DCDC4_600mV_START, AXP809_DCDC4_600mV_END, diff --git a/drivers/regulator/bcm590xx-regulator.c b/drivers/regulator/bcm590xx-regulator.c index 8c98c3f07660..65e23fc5f9c3 100644 --- a/drivers/regulator/bcm590xx-regulator.c +++ b/drivers/regulator/bcm590xx-regulator.c @@ -116,14 +116,14 @@ static const unsigned int ldo_vbus[] = { }; /* DCDC group CSR: supported voltages in microvolts */ -static const struct regulator_linear_range dcdc_csr_ranges[] = { +static const struct linear_range dcdc_csr_ranges[] = { REGULATOR_LINEAR_RANGE(860000, 2, 50, 10000), REGULATOR_LINEAR_RANGE(1360000, 51, 55, 20000), REGULATOR_LINEAR_RANGE(900000, 56, 63, 0), }; /* DCDC group IOSR1: supported voltages in microvolts */ -static const struct regulator_linear_range dcdc_iosr1_ranges[] = { +static const struct linear_range dcdc_iosr1_ranges[] = { REGULATOR_LINEAR_RANGE(860000, 2, 51, 10000), REGULATOR_LINEAR_RANGE(1500000, 52, 52, 0), REGULATOR_LINEAR_RANGE(1800000, 53, 53, 0), @@ -131,7 +131,7 @@ static const struct regulator_linear_range dcdc_iosr1_ranges[] = { }; /* DCDC group SDSR1: supported voltages in microvolts */ -static const struct regulator_linear_range dcdc_sdsr1_ranges[] = { +static const struct linear_range dcdc_sdsr1_ranges[] = { REGULATOR_LINEAR_RANGE(860000, 2, 50, 10000), REGULATOR_LINEAR_RANGE(1340000, 51, 51, 0), REGULATOR_LINEAR_RANGE(900000, 52, 63, 0), @@ -143,7 +143,7 @@ struct bcm590xx_info { u8 n_voltages; const unsigned int *volt_table; u8 n_linear_ranges; - const struct regulator_linear_range *linear_ranges; + const struct linear_range *linear_ranges; }; #define BCM590XX_REG_TABLE(_name, _table) \ diff --git a/drivers/regulator/bd70528-regulator.c b/drivers/regulator/bd70528-regulator.c index 5bf8a2dc5fe7..d44adf7e875a 100644 --- a/drivers/regulator/bd70528-regulator.c +++ b/drivers/regulator/bd70528-regulator.c @@ -20,22 +20,22 @@ #define BUCK_RAMPRATE_125MV 1 #define BUCK_RAMP_MAX 250 -static const struct regulator_linear_range bd70528_buck1_volts[] = { +static const struct linear_range bd70528_buck1_volts[] = { REGULATOR_LINEAR_RANGE(1200000, 0x00, 0x1, 600000), REGULATOR_LINEAR_RANGE(2750000, 0x2, 0xf, 50000), }; -static const struct regulator_linear_range bd70528_buck2_volts[] = { +static const struct linear_range bd70528_buck2_volts[] = { REGULATOR_LINEAR_RANGE(1200000, 0x00, 0x1, 300000), REGULATOR_LINEAR_RANGE(1550000, 0x2, 0xd, 50000), REGULATOR_LINEAR_RANGE(3000000, 0xe, 0xf, 300000), }; -static const struct regulator_linear_range bd70528_buck3_volts[] = { +static const struct linear_range bd70528_buck3_volts[] = { REGULATOR_LINEAR_RANGE(800000, 0x00, 0xd, 50000), REGULATOR_LINEAR_RANGE(1800000, 0xe, 0xf, 0), }; /* All LDOs have same voltage ranges */ -static const struct regulator_linear_range bd70528_ldo_volts[] = { +static const struct linear_range bd70528_ldo_volts[] = { REGULATOR_LINEAR_RANGE(1650000, 0x0, 0x07, 50000), REGULATOR_LINEAR_RANGE(2100000, 0x8, 0x0f, 100000), REGULATOR_LINEAR_RANGE(2850000, 0x10, 0x19, 50000), diff --git a/drivers/regulator/bd71828-regulator.c b/drivers/regulator/bd71828-regulator.c index b2fa17be4988..85c0b9000963 100644 --- a/drivers/regulator/bd71828-regulator.c +++ b/drivers/regulator/bd71828-regulator.c @@ -65,27 +65,27 @@ static const struct reg_init buck7_inits[] = { }, }; -static const struct regulator_linear_range bd71828_buck1267_volts[] = { +static const struct linear_range bd71828_buck1267_volts[] = { REGULATOR_LINEAR_RANGE(500000, 0x00, 0xef, 6250), REGULATOR_LINEAR_RANGE(2000000, 0xf0, 0xff, 0), }; -static const struct regulator_linear_range bd71828_buck3_volts[] = { +static const struct linear_range bd71828_buck3_volts[] = { REGULATOR_LINEAR_RANGE(1200000, 0x00, 0x0f, 50000), REGULATOR_LINEAR_RANGE(2000000, 0x10, 0x1f, 0), }; -static const struct regulator_linear_range bd71828_buck4_volts[] = { +static const struct linear_range bd71828_buck4_volts[] = { REGULATOR_LINEAR_RANGE(1000000, 0x00, 0x1f, 25000), REGULATOR_LINEAR_RANGE(1800000, 0x20, 0x3f, 0), }; -static const struct regulator_linear_range bd71828_buck5_volts[] = { +static const struct linear_range bd71828_buck5_volts[] = { REGULATOR_LINEAR_RANGE(2500000, 0x00, 0x0f, 50000), REGULATOR_LINEAR_RANGE(3300000, 0x10, 0x1f, 0), }; -static const struct regulator_linear_range bd71828_ldo_volts[] = { +static const struct linear_range bd71828_ldo_volts[] = { REGULATOR_LINEAR_RANGE(800000, 0x00, 0x31, 50000), REGULATOR_LINEAR_RANGE(3300000, 0x32, 0x3f, 0), }; diff --git a/drivers/regulator/bd718x7-regulator.c b/drivers/regulator/bd718x7-regulator.c index cf3872837abc..7b311389f925 100644 --- a/drivers/regulator/bd718x7-regulator.c +++ b/drivers/regulator/bd718x7-regulator.c @@ -55,12 +55,20 @@ static int bd718xx_buck1234_set_ramp_delay(struct regulator_dev *rdev, BUCK_RAMPRATE_MASK, ramp_value << 6); } -/* Bucks 1 to 4 support DVS. PWM mode is used when voltage is changed. +/* + * On BD71837 (not on BD71847, BD71850, ...) + * Bucks 1 to 4 support DVS. PWM mode is used when voltage is changed. * Bucks 5 to 8 and LDOs can use PFM and must be disabled when voltage * is changed. Hence we return -EBUSY for these if voltage is changed * when BUCK/LDO is enabled. + * + * On BD71847, BD71850, ... The LDO voltage can be changed when LDO is + * enabled. But if voltage is increased the LDO power-good monitoring + * must be disabled for the duration of changing + 1mS to ensure voltage + * has reached the higher level before HW does next under voltage detection + * cycle. */ -static int bd718xx_set_voltage_sel_restricted(struct regulator_dev *rdev, +static int bd71837_set_voltage_sel_restricted(struct regulator_dev *rdev, unsigned int sel) { if (regulator_is_enabled_regmap(rdev)) @@ -69,9 +77,124 @@ static int bd718xx_set_voltage_sel_restricted(struct regulator_dev *rdev, return regulator_set_voltage_sel_regmap(rdev, sel); } +static void voltage_change_done(struct regulator_dev *rdev, unsigned int sel, + unsigned int *mask) +{ + int ret; + + if (*mask) { + /* + * Let's allow scheduling as we use I2C anyways. We just need to + * guarantee minimum of 1ms sleep - it shouldn't matter if we + * exceed it due to the scheduling. + */ + msleep(1); + /* + * Note for next hacker. The PWRGOOD should not be masked on + * BD71847 so we will just unconditionally enable detection + * when voltage is set. + * If someone want's to disable PWRGOOD he must implement + * caching and restoring the old value here. I am not + * aware of such use-cases so for the sake of the simplicity + * we just always enable PWRGOOD here. + */ + ret = regmap_update_bits(rdev->regmap, BD718XX_REG_MVRFLTMASK2, + *mask, 0); + if (ret) + dev_err(&rdev->dev, + "Failed to re-enable voltage monitoring (%d)\n", + ret); + } +} + +static int voltage_change_prepare(struct regulator_dev *rdev, unsigned int sel, + unsigned int *mask) +{ + int ret; + + *mask = 0; + if (regulator_is_enabled_regmap(rdev)) { + int now, new; + + now = rdev->desc->ops->get_voltage_sel(rdev); + if (now < 0) + return now; + + now = rdev->desc->ops->list_voltage(rdev, now); + if (now < 0) + return now; + + new = rdev->desc->ops->list_voltage(rdev, sel); + if (new < 0) + return new; + + /* + * If we increase LDO voltage when LDO is enabled we need to + * disable the power-good detection until voltage has reached + * the new level. According to HW colleagues the maximum time + * it takes is 1000us. I assume that on systems with light load + * this might be less - and we could probably use DT to give + * system specific delay value if performance matters. + * + * Well, knowing we use I2C here and can add scheduling delays + * I don't think it is worth the hassle and I just add fixed + * 1ms sleep here (and allow scheduling). If this turns out to + * be a problem we can change it to delay and make the delay + * time configurable. + */ + if (new > now) { + int ldo_offset = rdev->desc->id - BD718XX_LDO1; + + *mask = BD718XX_LDO1_VRMON80 << ldo_offset; + ret = regmap_update_bits(rdev->regmap, + BD718XX_REG_MVRFLTMASK2, + *mask, *mask); + if (ret) { + dev_err(&rdev->dev, + "Failed to stop voltage monitoring\n"); + return ret; + } + } + } + + return 0; +} + +static int bd718xx_set_voltage_sel_restricted(struct regulator_dev *rdev, + unsigned int sel) +{ + int ret; + int mask; + + ret = voltage_change_prepare(rdev, sel, &mask); + if (ret) + return ret; + + ret = regulator_set_voltage_sel_regmap(rdev, sel); + voltage_change_done(rdev, sel, &mask); + + return ret; +} + static int bd718xx_set_voltage_sel_pickable_restricted( struct regulator_dev *rdev, unsigned int sel) { + int ret; + int mask; + + ret = voltage_change_prepare(rdev, sel, &mask); + if (ret) + return ret; + + ret = regulator_set_voltage_sel_pickable_regmap(rdev, sel); + voltage_change_done(rdev, sel, &mask); + + return ret; +} + +static int bd71837_set_voltage_sel_pickable_restricted( + struct regulator_dev *rdev, unsigned int sel) +{ if (regulator_is_enabled_regmap(rdev)) return -EBUSY; @@ -85,6 +208,16 @@ static const struct regulator_ops bd718xx_pickable_range_ldo_ops = { .list_voltage = regulator_list_voltage_pickable_linear_range, .set_voltage_sel = bd718xx_set_voltage_sel_pickable_restricted, .get_voltage_sel = regulator_get_voltage_sel_pickable_regmap, + +}; + +static const struct regulator_ops bd71837_pickable_range_ldo_ops = { + .enable = regulator_enable_regmap, + .disable = regulator_disable_regmap, + .is_enabled = regulator_is_enabled_regmap, + .list_voltage = regulator_list_voltage_pickable_linear_range, + .set_voltage_sel = bd71837_set_voltage_sel_pickable_restricted, + .get_voltage_sel = regulator_get_voltage_sel_pickable_regmap, }; static const struct regulator_ops bd718xx_pickable_range_buck_ops = { @@ -92,11 +225,30 @@ static const struct regulator_ops bd718xx_pickable_range_buck_ops = { .disable = regulator_disable_regmap, .is_enabled = regulator_is_enabled_regmap, .list_voltage = regulator_list_voltage_pickable_linear_range, - .set_voltage_sel = bd718xx_set_voltage_sel_pickable_restricted, + .set_voltage_sel = regulator_set_voltage_sel_pickable_regmap, + .get_voltage_sel = regulator_get_voltage_sel_pickable_regmap, + .set_voltage_time_sel = regulator_set_voltage_time_sel, +}; + +static const struct regulator_ops bd71837_pickable_range_buck_ops = { + .enable = regulator_enable_regmap, + .disable = regulator_disable_regmap, + .is_enabled = regulator_is_enabled_regmap, + .list_voltage = regulator_list_voltage_pickable_linear_range, + .set_voltage_sel = bd71837_set_voltage_sel_pickable_restricted, .get_voltage_sel = regulator_get_voltage_sel_pickable_regmap, .set_voltage_time_sel = regulator_set_voltage_time_sel, }; +static const struct regulator_ops bd71837_ldo_regulator_ops = { + .enable = regulator_enable_regmap, + .disable = regulator_disable_regmap, + .is_enabled = regulator_is_enabled_regmap, + .list_voltage = regulator_list_voltage_linear_range, + .set_voltage_sel = bd71837_set_voltage_sel_restricted, + .get_voltage_sel = regulator_get_voltage_sel_regmap, +}; + static const struct regulator_ops bd718xx_ldo_regulator_ops = { .enable = regulator_enable_regmap, .disable = regulator_disable_regmap, @@ -106,6 +258,15 @@ static const struct regulator_ops bd718xx_ldo_regulator_ops = { .get_voltage_sel = regulator_get_voltage_sel_regmap, }; +static const struct regulator_ops bd71837_ldo_regulator_nolinear_ops = { + .enable = regulator_enable_regmap, + .disable = regulator_disable_regmap, + .is_enabled = regulator_is_enabled_regmap, + .list_voltage = regulator_list_voltage_table, + .set_voltage_sel = bd71837_set_voltage_sel_restricted, + .get_voltage_sel = regulator_get_voltage_sel_regmap, +}; + static const struct regulator_ops bd718xx_ldo_regulator_nolinear_ops = { .enable = regulator_enable_regmap, .disable = regulator_disable_regmap, @@ -120,7 +281,17 @@ static const struct regulator_ops bd718xx_buck_regulator_ops = { .disable = regulator_disable_regmap, .is_enabled = regulator_is_enabled_regmap, .list_voltage = regulator_list_voltage_linear_range, - .set_voltage_sel = bd718xx_set_voltage_sel_restricted, + .set_voltage_sel = regulator_set_voltage_sel_regmap, + .get_voltage_sel = regulator_get_voltage_sel_regmap, + .set_voltage_time_sel = regulator_set_voltage_time_sel, +}; + +static const struct regulator_ops bd71837_buck_regulator_ops = { + .enable = regulator_enable_regmap, + .disable = regulator_disable_regmap, + .is_enabled = regulator_is_enabled_regmap, + .list_voltage = regulator_list_voltage_linear_range, + .set_voltage_sel = bd71837_set_voltage_sel_restricted, .get_voltage_sel = regulator_get_voltage_sel_regmap, .set_voltage_time_sel = regulator_set_voltage_time_sel, }; @@ -131,6 +302,17 @@ static const struct regulator_ops bd718xx_buck_regulator_nolinear_ops = { .is_enabled = regulator_is_enabled_regmap, .list_voltage = regulator_list_voltage_table, .map_voltage = regulator_map_voltage_ascend, + .set_voltage_sel = regulator_set_voltage_sel_regmap, + .get_voltage_sel = regulator_get_voltage_sel_regmap, + .set_voltage_time_sel = regulator_set_voltage_time_sel, +}; + +static const struct regulator_ops bd71837_buck_regulator_nolinear_ops = { + .enable = regulator_enable_regmap, + .disable = regulator_disable_regmap, + .is_enabled = regulator_is_enabled_regmap, + .list_voltage = regulator_list_voltage_table, + .map_voltage = regulator_map_voltage_ascend, .set_voltage_sel = bd718xx_set_voltage_sel_restricted, .get_voltage_sel = regulator_get_voltage_sel_regmap, .set_voltage_time_sel = regulator_set_voltage_time_sel, @@ -152,7 +334,7 @@ static const struct regulator_ops bd718xx_dvs_buck_regulator_ops = { * BD71847 BUCK1/2 * 0.70 to 1.30V (10mV step) */ -static const struct regulator_linear_range bd718xx_dvs_buck_volts[] = { +static const struct linear_range bd718xx_dvs_buck_volts[] = { REGULATOR_LINEAR_RANGE(700000, 0x00, 0x3C, 10000), REGULATOR_LINEAR_RANGE(1300000, 0x3D, 0x3F, 0), }; @@ -163,7 +345,7 @@ static const struct regulator_linear_range bd718xx_dvs_buck_volts[] = { * and * 0.675 to 1.325 (range 1) */ -static const struct regulator_linear_range bd71837_buck5_volts[] = { +static const struct linear_range bd71837_buck5_volts[] = { /* Ranges when VOLT_SEL bit is 0 */ REGULATOR_LINEAR_RANGE(700000, 0x00, 0x03, 100000), REGULATOR_LINEAR_RANGE(1050000, 0x04, 0x05, 50000), @@ -185,7 +367,7 @@ static const unsigned int bd71837_buck5_volt_range_sel[] = { /* * BD71847 BUCK3 */ -static const struct regulator_linear_range bd71847_buck3_volts[] = { +static const struct linear_range bd71847_buck3_volts[] = { /* Ranges when VOLT_SEL bits are 00 */ REGULATOR_LINEAR_RANGE(700000, 0x00, 0x03, 100000), REGULATOR_LINEAR_RANGE(1050000, 0x04, 0x05, 50000), @@ -202,7 +384,7 @@ static const unsigned int bd71847_buck3_volt_range_sel[] = { 0x0, 0x0, 0x0, 0x40, 0x80, 0x80, 0x80 }; -static const struct regulator_linear_range bd71847_buck4_volts[] = { +static const struct linear_range bd71847_buck4_volts[] = { REGULATOR_LINEAR_RANGE(3000000, 0x00, 0x03, 100000), REGULATOR_LINEAR_RANGE(2600000, 0x00, 0x03, 100000), }; @@ -213,7 +395,7 @@ static const unsigned int bd71847_buck4_volt_range_sel[] = { 0x0, 0x40 }; * BUCK6 * 3.0V to 3.3V (step 100mV) */ -static const struct regulator_linear_range bd71837_buck6_volts[] = { +static const struct linear_range bd71837_buck6_volts[] = { REGULATOR_LINEAR_RANGE(3000000, 0x00, 0x03, 100000), }; @@ -237,7 +419,7 @@ static const unsigned int bd718xx_3rd_nodvs_buck_volts[] = { * BUCK8 * 0.8V to 1.40V (step 10mV) */ -static const struct regulator_linear_range bd718xx_4th_nodvs_buck_volts[] = { +static const struct linear_range bd718xx_4th_nodvs_buck_volts[] = { REGULATOR_LINEAR_RANGE(800000, 0x00, 0x3C, 10000), }; @@ -245,7 +427,7 @@ static const struct regulator_linear_range bd718xx_4th_nodvs_buck_volts[] = { * LDO1 * 3.0 to 3.3V (100mV step) */ -static const struct regulator_linear_range bd718xx_ldo1_volts[] = { +static const struct linear_range bd718xx_ldo1_volts[] = { REGULATOR_LINEAR_RANGE(3000000, 0x00, 0x03, 100000), REGULATOR_LINEAR_RANGE(1600000, 0x00, 0x03, 100000), }; @@ -264,7 +446,7 @@ static const unsigned int ldo_2_volts[] = { * LDO3 * 1.8 to 3.3V (100mV step) */ -static const struct regulator_linear_range bd718xx_ldo3_volts[] = { +static const struct linear_range bd718xx_ldo3_volts[] = { REGULATOR_LINEAR_RANGE(1800000, 0x00, 0x0F, 100000), }; @@ -272,7 +454,7 @@ static const struct regulator_linear_range bd718xx_ldo3_volts[] = { * LDO4 * 0.9 to 1.8V (100mV step) */ -static const struct regulator_linear_range bd718xx_ldo4_volts[] = { +static const struct linear_range bd718xx_ldo4_volts[] = { REGULATOR_LINEAR_RANGE(900000, 0x00, 0x09, 100000), }; @@ -280,7 +462,7 @@ static const struct regulator_linear_range bd718xx_ldo4_volts[] = { * LDO5 for BD71837 * 1.8 to 3.3V (100mV step) */ -static const struct regulator_linear_range bd71837_ldo5_volts[] = { +static const struct linear_range bd71837_ldo5_volts[] = { REGULATOR_LINEAR_RANGE(1800000, 0x00, 0x0F, 100000), }; @@ -288,7 +470,7 @@ static const struct regulator_linear_range bd71837_ldo5_volts[] = { * LDO5 for BD71837 * 1.8 to 3.3V (100mV step) */ -static const struct regulator_linear_range bd71847_ldo5_volts[] = { +static const struct linear_range bd71847_ldo5_volts[] = { REGULATOR_LINEAR_RANGE(1800000, 0x00, 0x0F, 100000), REGULATOR_LINEAR_RANGE(800000, 0x00, 0x0F, 100000), }; @@ -299,7 +481,7 @@ static const unsigned int bd71847_ldo5_volt_range_sel[] = { 0x0, 0x20 }; * LDO6 * 0.9 to 1.8V (100mV step) */ -static const struct regulator_linear_range bd718xx_ldo6_volts[] = { +static const struct linear_range bd718xx_ldo6_volts[] = { REGULATOR_LINEAR_RANGE(900000, 0x00, 0x09, 100000), }; @@ -307,7 +489,7 @@ static const struct regulator_linear_range bd718xx_ldo6_volts[] = { * LDO7 * 1.8 to 3.3V (100mV step) */ -static const struct regulator_linear_range bd71837_ldo7_volts[] = { +static const struct linear_range bd71837_ldo7_volts[] = { REGULATOR_LINEAR_RANGE(1800000, 0x00, 0x0F, 100000), }; @@ -805,7 +987,7 @@ static const struct bd718xx_regulator_data bd71837_regulators[] = { .of_match = of_match_ptr("BUCK5"), .regulators_node = of_match_ptr("regulators"), .id = BD718XX_BUCK5, - .ops = &bd718xx_pickable_range_buck_ops, + .ops = &bd71837_pickable_range_buck_ops, .type = REGULATOR_VOLTAGE, .n_voltages = BD71837_BUCK5_VOLTAGE_NUM, .linear_ranges = bd71837_buck5_volts, @@ -832,7 +1014,7 @@ static const struct bd718xx_regulator_data bd71837_regulators[] = { .of_match = of_match_ptr("BUCK6"), .regulators_node = of_match_ptr("regulators"), .id = BD718XX_BUCK6, - .ops = &bd718xx_buck_regulator_ops, + .ops = &bd71837_buck_regulator_ops, .type = REGULATOR_VOLTAGE, .n_voltages = BD71837_BUCK6_VOLTAGE_NUM, .linear_ranges = bd71837_buck6_volts, @@ -856,7 +1038,7 @@ static const struct bd718xx_regulator_data bd71837_regulators[] = { .of_match = of_match_ptr("BUCK7"), .regulators_node = of_match_ptr("regulators"), .id = BD718XX_BUCK7, - .ops = &bd718xx_buck_regulator_nolinear_ops, + .ops = &bd71837_buck_regulator_nolinear_ops, .type = REGULATOR_VOLTAGE, .volt_table = &bd718xx_3rd_nodvs_buck_volts[0], .n_voltages = ARRAY_SIZE(bd718xx_3rd_nodvs_buck_volts), @@ -878,7 +1060,7 @@ static const struct bd718xx_regulator_data bd71837_regulators[] = { .of_match = of_match_ptr("BUCK8"), .regulators_node = of_match_ptr("regulators"), .id = BD718XX_BUCK8, - .ops = &bd718xx_buck_regulator_ops, + .ops = &bd71837_buck_regulator_ops, .type = REGULATOR_VOLTAGE, .n_voltages = BD718XX_4TH_NODVS_BUCK_VOLTAGE_NUM, .linear_ranges = bd718xx_4th_nodvs_buck_volts, @@ -902,7 +1084,7 @@ static const struct bd718xx_regulator_data bd71837_regulators[] = { .of_match = of_match_ptr("LDO1"), .regulators_node = of_match_ptr("regulators"), .id = BD718XX_LDO1, - .ops = &bd718xx_pickable_range_ldo_ops, + .ops = &bd71837_pickable_range_ldo_ops, .type = REGULATOR_VOLTAGE, .n_voltages = BD718XX_LDO1_VOLTAGE_NUM, .linear_ranges = bd718xx_ldo1_volts, @@ -928,7 +1110,7 @@ static const struct bd718xx_regulator_data bd71837_regulators[] = { .of_match = of_match_ptr("LDO2"), .regulators_node = of_match_ptr("regulators"), .id = BD718XX_LDO2, - .ops = &bd718xx_ldo_regulator_nolinear_ops, + .ops = &bd71837_ldo_regulator_nolinear_ops, .type = REGULATOR_VOLTAGE, .volt_table = &ldo_2_volts[0], .vsel_reg = BD718XX_REG_LDO2_VOLT, @@ -950,7 +1132,7 @@ static const struct bd718xx_regulator_data bd71837_regulators[] = { .of_match = of_match_ptr("LDO3"), .regulators_node = of_match_ptr("regulators"), .id = BD718XX_LDO3, - .ops = &bd718xx_ldo_regulator_ops, + .ops = &bd71837_ldo_regulator_ops, .type = REGULATOR_VOLTAGE, .n_voltages = BD718XX_LDO3_VOLTAGE_NUM, .linear_ranges = bd718xx_ldo3_volts, @@ -973,7 +1155,7 @@ static const struct bd718xx_regulator_data bd71837_regulators[] = { .of_match = of_match_ptr("LDO4"), .regulators_node = of_match_ptr("regulators"), .id = BD718XX_LDO4, - .ops = &bd718xx_ldo_regulator_ops, + .ops = &bd71837_ldo_regulator_ops, .type = REGULATOR_VOLTAGE, .n_voltages = BD718XX_LDO4_VOLTAGE_NUM, .linear_ranges = bd718xx_ldo4_volts, @@ -996,7 +1178,7 @@ static const struct bd718xx_regulator_data bd71837_regulators[] = { .of_match = of_match_ptr("LDO5"), .regulators_node = of_match_ptr("regulators"), .id = BD718XX_LDO5, - .ops = &bd718xx_ldo_regulator_ops, + .ops = &bd71837_ldo_regulator_ops, .type = REGULATOR_VOLTAGE, .n_voltages = BD71837_LDO5_VOLTAGE_NUM, .linear_ranges = bd71837_ldo5_volts, @@ -1023,7 +1205,7 @@ static const struct bd718xx_regulator_data bd71837_regulators[] = { .of_match = of_match_ptr("LDO6"), .regulators_node = of_match_ptr("regulators"), .id = BD718XX_LDO6, - .ops = &bd718xx_ldo_regulator_ops, + .ops = &bd71837_ldo_regulator_ops, .type = REGULATOR_VOLTAGE, .n_voltages = BD718XX_LDO6_VOLTAGE_NUM, .linear_ranges = bd718xx_ldo6_volts, @@ -1050,7 +1232,7 @@ static const struct bd718xx_regulator_data bd71837_regulators[] = { .of_match = of_match_ptr("LDO7"), .regulators_node = of_match_ptr("regulators"), .id = BD718XX_LDO7, - .ops = &bd718xx_ldo_regulator_ops, + .ops = &bd71837_ldo_regulator_ops, .type = REGULATOR_VOLTAGE, .n_voltages = BD71837_LDO7_VOLTAGE_NUM, .linear_ranges = bd71837_ldo7_volts, diff --git a/drivers/regulator/core.c b/drivers/regulator/core.c index 7486f6e4e613..03154f5b939f 100644 --- a/drivers/regulator/core.c +++ b/drivers/regulator/core.c @@ -3642,36 +3642,19 @@ finish: return done; } -static int regulator_balance_voltage(struct regulator_dev *rdev, - suspend_state_t state) +int regulator_do_balance_voltage(struct regulator_dev *rdev, + suspend_state_t state, bool skip_coupled) { struct regulator_dev **c_rdevs; struct regulator_dev *best_rdev; struct coupling_desc *c_desc = &rdev->coupling_desc; - struct regulator_coupler *coupler = c_desc->coupler; int i, ret, n_coupled, best_min_uV, best_max_uV, best_c_rdev; unsigned int delta, best_delta; unsigned long c_rdev_done = 0; bool best_c_rdev_done; c_rdevs = c_desc->coupled_rdevs; - n_coupled = c_desc->n_coupled; - - /* - * If system is in a state other than PM_SUSPEND_ON, don't check - * other coupled regulators. - */ - if (state != PM_SUSPEND_ON) - n_coupled = 1; - - if (c_desc->n_resolved < n_coupled) { - rdev_err(rdev, "Not all coupled regulators registered\n"); - return -EPERM; - } - - /* Invoke custom balancer for customized couplers */ - if (coupler && coupler->balance_voltage) - return coupler->balance_voltage(coupler, rdev, state); + n_coupled = skip_coupled ? 1 : c_desc->n_coupled; /* * Find the best possible voltage change on each loop. Leave the loop @@ -3742,6 +3725,32 @@ out: return ret; } +static int regulator_balance_voltage(struct regulator_dev *rdev, + suspend_state_t state) +{ + struct coupling_desc *c_desc = &rdev->coupling_desc; + struct regulator_coupler *coupler = c_desc->coupler; + bool skip_coupled = false; + + /* + * If system is in a state other than PM_SUSPEND_ON, don't check + * other coupled regulators. + */ + if (state != PM_SUSPEND_ON) + skip_coupled = true; + + if (c_desc->n_resolved < c_desc->n_coupled) { + rdev_err(rdev, "Not all coupled regulators registered\n"); + return -EPERM; + } + + /* Invoke custom balancer for customized couplers */ + if (coupler && coupler->balance_voltage) + return coupler->balance_voltage(coupler, rdev, state); + + return regulator_do_balance_voltage(rdev, state, skip_coupled); +} + /** * regulator_set_voltage - set regulator output voltage * @regulator: regulator source @@ -4312,6 +4321,7 @@ EXPORT_SYMBOL_GPL(regulator_set_load); int regulator_allow_bypass(struct regulator *regulator, bool enable) { struct regulator_dev *rdev = regulator->rdev; + const char *name = rdev_get_name(rdev); int ret = 0; if (!rdev->desc->ops->set_bypass) @@ -4326,18 +4336,26 @@ int regulator_allow_bypass(struct regulator *regulator, bool enable) rdev->bypass_count++; if (rdev->bypass_count == rdev->open_count) { + trace_regulator_bypass_enable(name); + ret = rdev->desc->ops->set_bypass(rdev, enable); if (ret != 0) rdev->bypass_count--; + else + trace_regulator_bypass_enable_complete(name); } } else if (!enable && regulator->bypass) { rdev->bypass_count--; if (rdev->bypass_count != rdev->open_count) { + trace_regulator_bypass_disable(name); + ret = rdev->desc->ops->set_bypass(rdev, enable); if (ret != 0) rdev->bypass_count++; + else + trace_regulator_bypass_disable_complete(name); } } @@ -5496,6 +5514,7 @@ static void regulator_summary_show_subtree(struct seq_file *s, seq_printf(s, "%*s%-*s ", (level + 1) * 3 + 1, "", 30 - (level + 1) * 3, + consumer->supply_name ? consumer->supply_name : consumer->dev ? dev_name(consumer->dev) : "deviceless"); switch (rdev->desc->type) { diff --git a/drivers/regulator/da903x.c b/drivers/regulator/da903x.c index 5493c3a86426..770e694824ac 100644 --- a/drivers/regulator/da903x.c +++ b/drivers/regulator/da903x.c @@ -248,7 +248,7 @@ static int da9034_set_dvc_voltage_sel(struct regulator_dev *rdev, return ret; } -static const struct regulator_linear_range da9034_ldo12_ranges[] = { +static const struct linear_range da9034_ldo12_ranges[] = { REGULATOR_LINEAR_RANGE(1700000, 0, 7, 50000), REGULATOR_LINEAR_RANGE(2700000, 8, 15, 50000), }; diff --git a/drivers/regulator/db8500-prcmu.c b/drivers/regulator/db8500-prcmu.c index 88a2dcb9fe8a..0ce6ec4933af 100644 --- a/drivers/regulator/db8500-prcmu.c +++ b/drivers/regulator/db8500-prcmu.c @@ -181,7 +181,7 @@ static int db8500_regulator_switch_disable(struct regulator_dev *rdev) goto out; } - info->is_enabled = 0; + info->is_enabled = false; out: return ret; } diff --git a/drivers/regulator/helpers.c b/drivers/regulator/helpers.c index bb16c465426e..e970e9d2f8be 100644 --- a/drivers/regulator/helpers.c +++ b/drivers/regulator/helpers.c @@ -131,10 +131,11 @@ int regulator_get_voltage_sel_pickable_regmap(struct regulator_dev *rdev) unsigned int r_val; int range; unsigned int val; - int ret, i; - unsigned int voltages_in_range = 0; + int ret; + unsigned int voltages = 0; + const struct linear_range *r = rdev->desc->linear_ranges; - if (!rdev->desc->linear_ranges) + if (!r) return -EINVAL; ret = regmap_read(rdev->regmap, rdev->desc->vsel_reg, &val); @@ -152,11 +153,9 @@ int regulator_get_voltage_sel_pickable_regmap(struct regulator_dev *rdev) if (range < 0) return -EINVAL; - for (i = 0; i < range; i++) - voltages_in_range += (rdev->desc->linear_ranges[i].max_sel - - rdev->desc->linear_ranges[i].min_sel) + 1; + voltages = linear_range_values_in_range_array(r, range); - return val + voltages_in_range; + return val + voltages; } EXPORT_SYMBOL_GPL(regulator_get_voltage_sel_pickable_regmap); @@ -179,8 +178,11 @@ int regulator_set_voltage_sel_pickable_regmap(struct regulator_dev *rdev, unsigned int voltages_in_range = 0; for (i = 0; i < rdev->desc->n_linear_ranges; i++) { - voltages_in_range = (rdev->desc->linear_ranges[i].max_sel - - rdev->desc->linear_ranges[i].min_sel) + 1; + const struct linear_range *r; + + r = &rdev->desc->linear_ranges[i]; + voltages_in_range = linear_range_values_in_range(r); + if (sel < voltages_in_range) break; sel -= voltages_in_range; @@ -405,8 +407,10 @@ EXPORT_SYMBOL_GPL(regulator_map_voltage_linear); int regulator_map_voltage_linear_range(struct regulator_dev *rdev, int min_uV, int max_uV) { - const struct regulator_linear_range *range; + const struct linear_range *range; int ret = -EINVAL; + unsigned int sel; + bool found; int voltage, i; if (!rdev->desc->n_linear_ranges) { @@ -415,35 +419,19 @@ int regulator_map_voltage_linear_range(struct regulator_dev *rdev, } for (i = 0; i < rdev->desc->n_linear_ranges; i++) { - int linear_max_uV; - range = &rdev->desc->linear_ranges[i]; - linear_max_uV = range->min_uV + - (range->max_sel - range->min_sel) * range->uV_step; - if (!(min_uV <= linear_max_uV && max_uV >= range->min_uV)) + ret = linear_range_get_selector_high(range, min_uV, &sel, + &found); + if (ret) continue; - - if (min_uV <= range->min_uV) - min_uV = range->min_uV; - - /* range->uV_step == 0 means fixed voltage range */ - if (range->uV_step == 0) { - ret = 0; - } else { - ret = DIV_ROUND_UP(min_uV - range->min_uV, - range->uV_step); - if (ret < 0) - return ret; - } - - ret += range->min_sel; + ret = sel; /* * Map back into a voltage to verify we're still in bounds. * If we are not, then continue checking rest of the ranges. */ - voltage = rdev->desc->ops->list_voltage(rdev, ret); + voltage = rdev->desc->ops->list_voltage(rdev, sel); if (voltage >= min_uV && voltage <= max_uV) break; } @@ -468,7 +456,7 @@ EXPORT_SYMBOL_GPL(regulator_map_voltage_linear_range); int regulator_map_voltage_pickable_linear_range(struct regulator_dev *rdev, int min_uV, int max_uV) { - const struct regulator_linear_range *range; + const struct linear_range *range; int ret = -EINVAL; int voltage, i; unsigned int selector = 0; @@ -480,30 +468,25 @@ int regulator_map_voltage_pickable_linear_range(struct regulator_dev *rdev, for (i = 0; i < rdev->desc->n_linear_ranges; i++) { int linear_max_uV; + bool found; + unsigned int sel; range = &rdev->desc->linear_ranges[i]; - linear_max_uV = range->min_uV + - (range->max_sel - range->min_sel) * range->uV_step; + linear_max_uV = linear_range_get_max_value(range); - if (!(min_uV <= linear_max_uV && max_uV >= range->min_uV)) { - selector += (range->max_sel - range->min_sel + 1); + if (!(min_uV <= linear_max_uV && max_uV >= range->min)) { + selector += linear_range_values_in_range(range); continue; } - if (min_uV <= range->min_uV) - min_uV = range->min_uV; - - /* range->uV_step == 0 means fixed voltage range */ - if (range->uV_step == 0) { - ret = 0; - } else { - ret = DIV_ROUND_UP(min_uV - range->min_uV, - range->uV_step); - if (ret < 0) - return ret; + ret = linear_range_get_selector_high(range, min_uV, &sel, + &found); + if (ret) { + selector += linear_range_values_in_range(range); + continue; } - ret += selector; + ret = selector + sel; voltage = rdev->desc->ops->list_voltage(rdev, ret); @@ -513,7 +496,7 @@ int regulator_map_voltage_pickable_linear_range(struct regulator_dev *rdev, * exit but retry until we have checked all ranges. */ if (voltage < min_uV || voltage > max_uV) - selector += (range->max_sel - range->min_sel + 1); + selector += linear_range_values_in_range(range); else break; } @@ -561,7 +544,7 @@ EXPORT_SYMBOL_GPL(regulator_list_voltage_linear); int regulator_list_voltage_pickable_linear_range(struct regulator_dev *rdev, unsigned int selector) { - const struct regulator_linear_range *range; + const struct linear_range *range; int i; unsigned int all_sels = 0; @@ -571,18 +554,28 @@ int regulator_list_voltage_pickable_linear_range(struct regulator_dev *rdev, } for (i = 0; i < rdev->desc->n_linear_ranges; i++) { - unsigned int sels_in_range; + unsigned int sel_indexes; range = &rdev->desc->linear_ranges[i]; - sels_in_range = range->max_sel - range->min_sel; + sel_indexes = linear_range_values_in_range(range) - 1; - if (all_sels + sels_in_range >= selector) { + if (all_sels + sel_indexes >= selector) { selector -= all_sels; - return range->min_uV + (range->uV_step * selector); + /* + * As we see here, pickable ranges work only as + * long as the first selector for each pickable + * range is 0, and the each subsequent range for + * this 'pick' follow immediately at next unused + * selector (Eg. there is no gaps between ranges). + * I think this is fine but it probably should be + * documented. OTOH, whole pickable range stuff + * might benefit from some documentation + */ + return range->min + (range->step * selector); } - all_sels += (sels_in_range + 1); + all_sels += (sel_indexes + 1); } return -EINVAL; @@ -604,27 +597,18 @@ EXPORT_SYMBOL_GPL(regulator_list_voltage_pickable_linear_range); int regulator_desc_list_voltage_linear_range(const struct regulator_desc *desc, unsigned int selector) { - const struct regulator_linear_range *range; - int i; - - if (!desc->n_linear_ranges) { - BUG_ON(!desc->n_linear_ranges); - return -EINVAL; - } - - for (i = 0; i < desc->n_linear_ranges; i++) { - range = &desc->linear_ranges[i]; - - if (!(selector >= range->min_sel && - selector <= range->max_sel)) - continue; + unsigned int val; + int ret; - selector -= range->min_sel; + BUG_ON(!desc->n_linear_ranges); - return range->min_uV + (range->uV_step * selector); - } + ret = linear_range_get_value_array(desc->linear_ranges, + desc->n_linear_ranges, selector, + &val); + if (ret) + return ret; - return -EINVAL; + return val; } EXPORT_SYMBOL_GPL(regulator_desc_list_voltage_linear_range); diff --git a/drivers/regulator/hi6421-regulator.c b/drivers/regulator/hi6421-regulator.c index 5ac3d7c29725..66219d8dfc1a 100644 --- a/drivers/regulator/hi6421-regulator.c +++ b/drivers/regulator/hi6421-regulator.c @@ -87,7 +87,7 @@ static const unsigned int ldo_8_voltages[] = { }; /* Ranges are sorted in ascending order. */ -static const struct regulator_linear_range ldo_audio_volt_range[] = { +static const struct linear_range ldo_audio_volt_range[] = { REGULATOR_LINEAR_RANGE(2800000, 0, 3, 50000), REGULATOR_LINEAR_RANGE(3000000, 4, 7, 100000), }; @@ -195,7 +195,7 @@ static const struct regulator_ops hi6421_buck345_ops; * _id - LDO id name string * _match - of match name string * n_volt - number of votages available - * volt_ranges - array of regulator_linear_range + * volt_ranges - array of linear_range * vstep - voltage increase in each linear step in uV * vreg - voltage select register * vmask - voltage select mask diff --git a/drivers/regulator/lochnagar-regulator.c b/drivers/regulator/lochnagar-regulator.c index 9b05e03ba830..5ea3e4141684 100644 --- a/drivers/regulator/lochnagar-regulator.c +++ b/drivers/regulator/lochnagar-regulator.c @@ -36,7 +36,7 @@ static const struct regulator_ops lochnagar_micvdd_ops = { .set_voltage_sel = regulator_set_voltage_sel_regmap, }; -static const struct regulator_linear_range lochnagar_micvdd_ranges[] = { +static const struct linear_range lochnagar_micvdd_ranges[] = { REGULATOR_LINEAR_RANGE(1000000, 0, 0xC, 50000), REGULATOR_LINEAR_RANGE(1700000, 0xD, 0x1F, 100000), }; @@ -97,7 +97,7 @@ static const struct regulator_ops lochnagar_vddcore_ops = { .set_voltage_sel = regulator_set_voltage_sel_regmap, }; -static const struct regulator_linear_range lochnagar_vddcore_ranges[] = { +static const struct linear_range lochnagar_vddcore_ranges[] = { REGULATOR_LINEAR_RANGE(600000, 0x8, 0x41, 12500), }; diff --git a/drivers/regulator/lp873x-regulator.c b/drivers/regulator/lp873x-regulator.c index b55de293ca7a..fe049b67e7d5 100644 --- a/drivers/regulator/lp873x-regulator.c +++ b/drivers/regulator/lp873x-regulator.c @@ -54,14 +54,14 @@ struct lp873x_regulator { static const struct lp873x_regulator regulators[]; -static const struct regulator_linear_range buck0_buck1_ranges[] = { +static const struct linear_range buck0_buck1_ranges[] = { REGULATOR_LINEAR_RANGE(0, 0x0, 0x13, 0), REGULATOR_LINEAR_RANGE(700000, 0x14, 0x17, 10000), REGULATOR_LINEAR_RANGE(735000, 0x18, 0x9d, 5000), REGULATOR_LINEAR_RANGE(1420000, 0x9e, 0xff, 20000), }; -static const struct regulator_linear_range ldo0_ldo1_ranges[] = { +static const struct linear_range ldo0_ldo1_ranges[] = { REGULATOR_LINEAR_RANGE(800000, 0x0, 0x19, 100000), }; diff --git a/drivers/regulator/lp87565-regulator.c b/drivers/regulator/lp87565-regulator.c index 4ae12ac1f4c6..5d525dacf959 100644 --- a/drivers/regulator/lp87565-regulator.c +++ b/drivers/regulator/lp87565-regulator.c @@ -46,7 +46,7 @@ struct lp87565_regulator { static const struct lp87565_regulator regulators[]; -static const struct regulator_linear_range buck0_1_2_3_ranges[] = { +static const struct linear_range buck0_1_2_3_ranges[] = { REGULATOR_LINEAR_RANGE(600000, 0xA, 0x17, 10000), REGULATOR_LINEAR_RANGE(735000, 0x18, 0x9d, 5000), REGULATOR_LINEAR_RANGE(1420000, 0x9e, 0xff, 20000), diff --git a/drivers/regulator/lp8788-buck.c b/drivers/regulator/lp8788-buck.c index 222502a29658..74b7b496b12d 100644 --- a/drivers/regulator/lp8788-buck.c +++ b/drivers/regulator/lp8788-buck.c @@ -92,7 +92,7 @@ struct lp8788_buck { }; /* BUCK 1 ~ 4 voltage ranges */ -static const struct regulator_linear_range buck_volt_ranges[] = { +static const struct linear_range buck_volt_ranges[] = { REGULATOR_LINEAR_RANGE(500000, 0, 0, 0), REGULATOR_LINEAR_RANGE(800000, 1, 25, 50000), }; diff --git a/drivers/regulator/max77650-regulator.c b/drivers/regulator/max77650-regulator.c index ac89a412f665..ca08f94a368d 100644 --- a/drivers/regulator/max77650-regulator.c +++ b/drivers/regulator/max77650-regulator.c @@ -49,7 +49,7 @@ static const unsigned int max77651_sbb1_volt_range_sel[] = { 0x0, 0x1, 0x2, 0x3 }; -static const struct regulator_linear_range max77651_sbb1_volt_ranges[] = { +static const struct linear_range max77651_sbb1_volt_ranges[] = { /* range index 0 */ REGULATOR_LINEAR_RANGE(2400000, 0x00, 0x0f, 50000), /* range index 1 */ diff --git a/drivers/regulator/max77826-regulator.c b/drivers/regulator/max77826-regulator.c new file mode 100644 index 000000000000..502ab6afc814 --- /dev/null +++ b/drivers/regulator/max77826-regulator.c @@ -0,0 +1,301 @@ +// SPDX-License-Identifier: GPL-2.0-or-later +// +// max77826-regulator.c - regulator driver for Maxim MAX77826 +// +// Author: Iskren Chernev <iskren.chernev@gmail.com> + +#include <linux/kernel.h> +#include <linux/module.h> +#include <linux/init.h> +#include <linux/err.h> +#include <linux/of.h> +#include <linux/of_device.h> +#include <linux/platform_device.h> +#include <linux/regulator/driver.h> +#include <linux/regulator/of_regulator.h> +#include <linux/i2c.h> +#include <linux/regmap.h> + +enum max77826_registers { + MAX77826_REG_INT_SRC = 0x00, + MAX77826_REG_SYS_INT, + MAX77826_REG_INT1, + MAX77826_REG_INT2, + MAX77826_REG_BB_INT, + MAX77826_REG_INT_SRC_M, + MAX77826_REG_TOPSYS_INT_M, + MAX77826_REG_INT1_M, + MAX77826_REG_INT2_M, + MAX77826_REG_BB_INT_M, + MAX77826_REG_TOPSYS_STAT, + MAX77826_REG_STAT1, + MAX77826_REG_STAT2, + MAX77826_REG_BB_STAT, + /* 0x0E - 0x0F: Reserved */ + MAX77826_REG_LDO_OPMD1 = 0x10, + MAX77826_REG_LDO_OPMD2, + MAX77826_REG_LDO_OPMD3, + MAX77826_REG_LDO_OPMD4, + MAX77826_REG_B_BB_OPMD, + /* 0x15 - 0x1F: Reserved */ + MAX77826_REG_LDO1_CFG = 0x20, + MAX77826_REG_LDO2_CFG, + MAX77826_REG_LDO3_CFG, + MAX77826_REG_LDO4_CFG, + MAX77826_REG_LDO5_CFG, + MAX77826_REG_LDO6_CFG, + MAX77826_REG_LDO7_CFG, + MAX77826_REG_LDO8_CFG, + MAX77826_REG_LDO9_CFG, + MAX77826_REG_LDO10_CFG, + MAX77826_REG_LDO11_CFG, + MAX77826_REG_LDO12_CFG, + MAX77826_REG_LDO13_CFG, + MAX77826_REG_LDO14_CFG, + MAX77826_REG_LDO15_CFG, + /* 0x2F: Reserved */ + MAX77826_REG_BUCK_CFG = 0x30, + MAX77826_REG_BUCK_VOUT, + MAX77826_REG_BB_CFG, + MAX77826_REG_BB_VOUT, + /* 0x34 - 0x3F: Reserved */ + MAX77826_REG_BUCK_SS_FREQ = 0x40, + MAX77826_REG_UVLO_FALL, + /* 0x42 - 0xCE: Reserved */ + MAX77826_REG_DEVICE_ID = 0xCF, +}; + +enum max77826_regulators { + MAX77826_LDO1 = 0, + MAX77826_LDO2, + MAX77826_LDO3, + MAX77826_LDO4, + MAX77826_LDO5, + MAX77826_LDO6, + MAX77826_LDO7, + MAX77826_LDO8, + MAX77826_LDO9, + MAX77826_LDO10, + MAX77826_LDO11, + MAX77826_LDO12, + MAX77826_LDO13, + MAX77826_LDO14, + MAX77826_LDO15, + MAX77826_BUCK, + MAX77826_BUCKBOOST, + MAX77826_MAX_REGULATORS, +}; + +#define MAX77826_MASK_LDO 0x7f +#define MAX77826_MASK_BUCK 0xff +#define MAX77826_MASK_BUCKBOOST 0x7f +#define MAX77826_BUCK_RAMP_DELAY 12500 + +/* values in mV */ +/* for LDO1-3 */ +#define MAX77826_NMOS_LDO_VOLT_MIN 600000 +#define MAX77826_NMOS_LDO_VOLT_MAX 2187500 +#define MAX77826_NMOS_LDO_VOLT_STEP 12500 + +/* for LDO4-15 */ +#define MAX77826_PMOS_LDO_VOLT_MIN 800000 +#define MAX77826_PMOS_LDO_VOLT_MAX 3975000 +#define MAX77826_PMOS_LDO_VOLT_STEP 25000 + +/* for BUCK */ +#define MAX77826_BUCK_VOLT_MIN 500000 +#define MAX77826_BUCK_VOLT_MAX 1800000 +#define MAX77826_BUCK_VOLT_STEP 6250 + +/* for BUCKBOOST */ +#define MAX77826_BUCKBOOST_VOLT_MIN 2600000 +#define MAX77826_BUCKBOOST_VOLT_MAX 4187500 +#define MAX77826_BUCKBOOST_VOLT_STEP 12500 +#define MAX77826_VOLT_RANGE(_type) \ + ((MAX77826_ ## _type ## _VOLT_MAX - \ + MAX77826_ ## _type ## _VOLT_MIN) / \ + MAX77826_ ## _type ## _VOLT_STEP + 1) + +#define MAX77826_LDO(_id, _type) \ + [MAX77826_LDO ## _id] = { \ + .id = MAX77826_LDO ## _id, \ + .name = "LDO"#_id, \ + .of_match = of_match_ptr("LDO"#_id), \ + .regulators_node = "regulators", \ + .ops = &max77826_most_ops, \ + .min_uV = MAX77826_ ## _type ## _LDO_VOLT_MIN, \ + .uV_step = MAX77826_ ## _type ## _LDO_VOLT_STEP, \ + .n_voltages = MAX77826_VOLT_RANGE(_type ## _LDO), \ + .enable_reg = MAX77826_REG_LDO_OPMD1 + (_id - 1) / 4, \ + .enable_mask = BIT(((_id - 1) % 4) * 2 + 1), \ + .vsel_reg = MAX77826_REG_LDO1_CFG + (_id - 1), \ + .vsel_mask = MAX77826_MASK_LDO, \ + .owner = THIS_MODULE, \ + } + +#define MAX77826_BUCK(_idx, _id, _ops) \ + [MAX77826_ ## _id] = { \ + .id = MAX77826_ ## _id, \ + .name = #_id, \ + .of_match = of_match_ptr(#_id), \ + .regulators_node = "regulators", \ + .ops = &_ops, \ + .min_uV = MAX77826_ ## _id ## _VOLT_MIN, \ + .uV_step = MAX77826_ ## _id ## _VOLT_STEP, \ + .n_voltages = MAX77826_VOLT_RANGE(_id), \ + .enable_reg = MAX77826_REG_B_BB_OPMD, \ + .enable_mask = BIT(_idx * 2 + 1), \ + .vsel_reg = MAX77826_REG_BUCK_VOUT + _idx * 2, \ + .vsel_mask = MAX77826_MASK_ ## _id, \ + .owner = THIS_MODULE, \ + } + + + +struct max77826_regulator_info { + struct regmap *regmap; + struct regulator_desc *rdesc; +}; + +static const struct regmap_config max77826_regmap_config = { + .reg_bits = 8, + .val_bits = 8, + .max_register = MAX77826_REG_DEVICE_ID, +}; + +static int max77826_set_voltage_time_sel(struct regulator_dev *, + unsigned int old_selector, + unsigned int new_selector); + +static const struct regulator_ops max77826_most_ops = { + .enable = regulator_enable_regmap, + .disable = regulator_disable_regmap, + .is_enabled = regulator_is_enabled_regmap, + .list_voltage = regulator_list_voltage_linear, + .map_voltage = regulator_map_voltage_linear, + .get_voltage_sel = regulator_get_voltage_sel_regmap, + .set_voltage_sel = regulator_set_voltage_sel_regmap, +}; + +static const struct regulator_ops max77826_buck_ops = { + .enable = regulator_enable_regmap, + .disable = regulator_disable_regmap, + .is_enabled = regulator_is_enabled_regmap, + .list_voltage = regulator_list_voltage_linear, + .map_voltage = regulator_map_voltage_linear, + .get_voltage_sel = regulator_get_voltage_sel_regmap, + .set_voltage_sel = regulator_set_voltage_sel_regmap, + .set_voltage_time_sel = max77826_set_voltage_time_sel, +}; + +static struct regulator_desc max77826_regulators_desc[] = { + MAX77826_LDO(1, NMOS), + MAX77826_LDO(2, NMOS), + MAX77826_LDO(3, NMOS), + MAX77826_LDO(4, PMOS), + MAX77826_LDO(5, PMOS), + MAX77826_LDO(6, PMOS), + MAX77826_LDO(7, PMOS), + MAX77826_LDO(8, PMOS), + MAX77826_LDO(9, PMOS), + MAX77826_LDO(10, PMOS), + MAX77826_LDO(11, PMOS), + MAX77826_LDO(12, PMOS), + MAX77826_LDO(13, PMOS), + MAX77826_LDO(14, PMOS), + MAX77826_LDO(15, PMOS), + MAX77826_BUCK(0, BUCK, max77826_buck_ops), + MAX77826_BUCK(1, BUCKBOOST, max77826_most_ops), +}; + +static int max77826_set_voltage_time_sel(struct regulator_dev *rdev, + unsigned int old_selector, + unsigned int new_selector) +{ + if (new_selector > old_selector) { + return DIV_ROUND_UP(MAX77826_BUCK_VOLT_STEP * + (new_selector - old_selector), + MAX77826_BUCK_RAMP_DELAY); + } + + return 0; +} + +static int max77826_read_device_id(struct regmap *regmap, struct device *dev) +{ + unsigned int device_id; + int res; + + res = regmap_read(regmap, MAX77826_REG_DEVICE_ID, &device_id); + if (!res) + dev_dbg(dev, "DEVICE_ID: 0x%x\n", device_id); + + return res; +} + +static int max77826_i2c_probe(struct i2c_client *client) +{ + struct device *dev = &client->dev; + struct max77826_regulator_info *info; + struct regulator_config config = {}; + struct regulator_dev *rdev; + struct regmap *regmap; + int i; + + info = devm_kzalloc(dev, sizeof(struct max77826_regulator_info), + GFP_KERNEL); + if (!info) + return -ENOMEM; + + info->rdesc = max77826_regulators_desc; + regmap = devm_regmap_init_i2c(client, &max77826_regmap_config); + if (IS_ERR(regmap)) { + dev_err(dev, "Failed to allocate regmap!\n"); + return PTR_ERR(regmap); + } + + info->regmap = regmap; + i2c_set_clientdata(client, info); + + config.dev = dev; + config.regmap = regmap; + config.driver_data = info; + + for (i = 0; i < MAX77826_MAX_REGULATORS; i++) { + rdev = devm_regulator_register(dev, + &max77826_regulators_desc[i], + &config); + if (IS_ERR(rdev)) { + dev_err(dev, "Failed to register regulator!\n"); + return PTR_ERR(rdev); + } + } + + return max77826_read_device_id(regmap, dev); +} + +static const struct of_device_id max77826_of_match[] = { + { .compatible = "maxim,max77826" }, + { /* sentinel */ } +}; +MODULE_DEVICE_TABLE(of, max77826_of_match); + +static const struct i2c_device_id max77826_id[] = { + { "max77826-regulator" }, + { /* sentinel */ } +}; +MODULE_DEVICE_TABLE(i2c, max77826_id); + +static struct i2c_driver max77826_regulator_driver = { + .driver = { + .name = "max77826", + .of_match_table = of_match_ptr(max77826_of_match), + }, + .probe_new = max77826_i2c_probe, + .id_table = max77826_id, +}; +module_i2c_driver(max77826_regulator_driver); + +MODULE_AUTHOR("Iskren Chernev <iskren.chernev@gmail.com>"); +MODULE_DESCRIPTION("MAX77826 PMIC regulator driver"); +MODULE_LICENSE("GPL"); diff --git a/drivers/regulator/max8998.c b/drivers/regulator/max8998.c index 60599c3bb845..340413bba0c5 100644 --- a/drivers/regulator/max8998.c +++ b/drivers/regulator/max8998.c @@ -33,6 +33,10 @@ struct max8998_data { unsigned int buck2_idx; }; +static const unsigned int charger_current_table[] = { + 90000, 380000, 475000, 550000, 570000, 600000, 700000, 800000, +}; + static int max8998_get_enable_register(struct regulator_dev *rdev, int *reg, int *shift) { @@ -63,6 +67,10 @@ static int max8998_get_enable_register(struct regulator_dev *rdev, *reg = MAX8998_REG_CHGR2; *shift = 7 - (ldo - MAX8998_ESAFEOUT1); break; + case MAX8998_CHARGER: + *reg = MAX8998_REG_CHGR2; + *shift = 0; + break; default: return -EINVAL; } @@ -88,6 +96,11 @@ static int max8998_ldo_is_enabled(struct regulator_dev *rdev) return val & (1 << shift); } +static int max8998_ldo_is_enabled_inverted(struct regulator_dev *rdev) +{ + return (!max8998_ldo_is_enabled(rdev)); +} + static int max8998_ldo_enable(struct regulator_dev *rdev) { struct max8998_data *max8998 = rdev_get_drvdata(rdev); @@ -358,6 +371,74 @@ static int max8998_set_voltage_buck_time_sel(struct regulator_dev *rdev, return 0; } +static int max8998_set_current_limit(struct regulator_dev *rdev, + int min_uA, int max_uA) +{ + struct max8998_data *max8998 = rdev_get_drvdata(rdev); + struct i2c_client *i2c = max8998->iodev->i2c; + unsigned int n_currents = rdev->desc->n_current_limits; + int i, sel = -1; + + if (n_currents == 0) + return -EINVAL; + + if (rdev->desc->curr_table) { + const unsigned int *curr_table = rdev->desc->curr_table; + bool ascend = curr_table[n_currents - 1] > curr_table[0]; + + /* search for closest to maximum */ + if (ascend) { + for (i = n_currents - 1; i >= 0; i--) { + if (min_uA <= curr_table[i] && + curr_table[i] <= max_uA) { + sel = i; + break; + } + } + } else { + for (i = 0; i < n_currents; i++) { + if (min_uA <= curr_table[i] && + curr_table[i] <= max_uA) { + sel = i; + break; + } + } + } + } + + if (sel < 0) + return -EINVAL; + + sel <<= ffs(rdev->desc->csel_mask) - 1; + + return max8998_update_reg(i2c, rdev->desc->csel_reg, + sel, rdev->desc->csel_mask); +} + +int max8998_get_current_limit(struct regulator_dev *rdev) +{ + struct max8998_data *max8998 = rdev_get_drvdata(rdev); + struct i2c_client *i2c = max8998->iodev->i2c; + u8 val; + int ret; + + ret = max8998_read_reg(i2c, rdev->desc->csel_reg, &val); + if (ret != 0) + return ret; + + val &= rdev->desc->csel_mask; + val >>= ffs(rdev->desc->csel_mask) - 1; + + if (rdev->desc->curr_table) { + if (val >= rdev->desc->n_current_limits) + return -EINVAL; + + return rdev->desc->curr_table[val]; + } + + return -EINVAL; +} + static const struct regulator_ops max8998_ldo_ops = { .list_voltage = regulator_list_voltage_linear, .map_voltage = regulator_map_voltage_linear, @@ -379,6 +460,15 @@ static const struct regulator_ops max8998_buck_ops = { .set_voltage_time_sel = max8998_set_voltage_buck_time_sel, }; +static const struct regulator_ops max8998_charger_ops = { + .set_current_limit = max8998_set_current_limit, + .get_current_limit = max8998_get_current_limit, + .is_enabled = max8998_ldo_is_enabled_inverted, + /* Swapped as register is inverted */ + .enable = max8998_ldo_disable, + .disable = max8998_ldo_enable, +}; + static const struct regulator_ops max8998_others_ops = { .is_enabled = max8998_ldo_is_enabled, .enable = max8998_ldo_enable, @@ -397,6 +487,19 @@ static const struct regulator_ops max8998_others_ops = { .owner = THIS_MODULE, \ } +#define MAX8998_CURRENT_REG(_name, _ops, _table, _reg, _mask) \ + { \ + .name = #_name, \ + .id = MAX8998_##_name, \ + .ops = _ops, \ + .curr_table = _table, \ + .n_current_limits = ARRAY_SIZE(_table), \ + .csel_reg = _reg, \ + .csel_mask = _mask, \ + .type = REGULATOR_CURRENT, \ + .owner = THIS_MODULE, \ + } + #define MAX8998_OTHERS_REG(_name, _id) \ { \ .name = #_name, \ @@ -432,6 +535,8 @@ static const struct regulator_desc regulators[] = { MAX8998_OTHERS_REG(ENVICHG, MAX8998_ENVICHG), MAX8998_OTHERS_REG(ESAFEOUT1, MAX8998_ESAFEOUT1), MAX8998_OTHERS_REG(ESAFEOUT2, MAX8998_ESAFEOUT2), + MAX8998_CURRENT_REG(CHARGER, &max8998_charger_ops, + charger_current_table, MAX8998_REG_CHGR1, 0x7), }; static int max8998_pmic_dt_parse_dvs_gpio(struct max8998_dev *iodev, diff --git a/drivers/regulator/mcp16502.c b/drivers/regulator/mcp16502.c index e5a02711cb46..6d0ad74935b3 100644 --- a/drivers/regulator/mcp16502.c +++ b/drivers/regulator/mcp16502.c @@ -391,11 +391,11 @@ static const struct of_device_id mcp16502_ids[] = { }; MODULE_DEVICE_TABLE(of, mcp16502_ids); -static const struct regulator_linear_range b1l12_ranges[] = { +static const struct linear_range b1l12_ranges[] = { REGULATOR_LINEAR_RANGE(1200000, VDD_LOW_SEL, VDD_HIGH_SEL, 50000), }; -static const struct regulator_linear_range b234_ranges[] = { +static const struct linear_range b234_ranges[] = { REGULATOR_LINEAR_RANGE(600000, VDD_LOW_SEL, VDD_HIGH_SEL, 25000), }; diff --git a/drivers/regulator/mp8859.c b/drivers/regulator/mp8859.c index 6ed987648188..f2300714d5a9 100644 --- a/drivers/regulator/mp8859.c +++ b/drivers/regulator/mp8859.c @@ -73,7 +73,7 @@ static int mp8859_get_voltage_sel(struct regulator_dev *rdev) return val; } -static const struct regulator_linear_range mp8859_dcdc_ranges[] = { +static const struct linear_range mp8859_dcdc_ranges[] = { REGULATOR_LINEAR_RANGE(0, VOL_MIN_IDX, VOL_MAX_IDX, 10000), }; diff --git a/drivers/regulator/mt6323-regulator.c b/drivers/regulator/mt6323-regulator.c index 893ea190788a..ff9016170db3 100644 --- a/drivers/regulator/mt6323-regulator.c +++ b/drivers/regulator/mt6323-regulator.c @@ -102,15 +102,15 @@ struct mt6323_regulator_info { .modeset_mask = _modeset_mask, \ } -static const struct regulator_linear_range buck_volt_range1[] = { +static const struct linear_range buck_volt_range1[] = { REGULATOR_LINEAR_RANGE(700000, 0, 0x7f, 6250), }; -static const struct regulator_linear_range buck_volt_range2[] = { +static const struct linear_range buck_volt_range2[] = { REGULATOR_LINEAR_RANGE(1400000, 0, 0x7f, 12500), }; -static const struct regulator_linear_range buck_volt_range3[] = { +static const struct linear_range buck_volt_range3[] = { REGULATOR_LINEAR_RANGE(500000, 0, 0x3f, 50000), }; diff --git a/drivers/regulator/mt6358-regulator.c b/drivers/regulator/mt6358-regulator.c index ba42682e06f3..13cb6ac9a892 100644 --- a/drivers/regulator/mt6358-regulator.c +++ b/drivers/regulator/mt6358-regulator.c @@ -137,19 +137,19 @@ struct mt6358_regulator_info { .qi = BIT(15), \ } -static const struct regulator_linear_range buck_volt_range1[] = { +static const struct linear_range buck_volt_range1[] = { REGULATOR_LINEAR_RANGE(500000, 0, 0x7f, 6250), }; -static const struct regulator_linear_range buck_volt_range2[] = { +static const struct linear_range buck_volt_range2[] = { REGULATOR_LINEAR_RANGE(500000, 0, 0x7f, 12500), }; -static const struct regulator_linear_range buck_volt_range3[] = { +static const struct linear_range buck_volt_range3[] = { REGULATOR_LINEAR_RANGE(500000, 0, 0x3f, 50000), }; -static const struct regulator_linear_range buck_volt_range4[] = { +static const struct linear_range buck_volt_range4[] = { REGULATOR_LINEAR_RANGE(1000000, 0, 0x7f, 12500), }; diff --git a/drivers/regulator/mt6380-regulator.c b/drivers/regulator/mt6380-regulator.c index b6aed090b5e0..9efd8710a6f3 100644 --- a/drivers/regulator/mt6380-regulator.c +++ b/drivers/regulator/mt6380-regulator.c @@ -152,15 +152,15 @@ struct mt6380_regulator_info { .modeset_mask = _modeset_mask, \ } -static const struct regulator_linear_range buck_volt_range1[] = { +static const struct linear_range buck_volt_range1[] = { REGULATOR_LINEAR_RANGE(600000, 0, 0xfe, 6250), }; -static const struct regulator_linear_range buck_volt_range2[] = { +static const struct linear_range buck_volt_range2[] = { REGULATOR_LINEAR_RANGE(600000, 0, 0xfe, 6250), }; -static const struct regulator_linear_range buck_volt_range3[] = { +static const struct linear_range buck_volt_range3[] = { REGULATOR_LINEAR_RANGE(1200000, 0, 0x3c, 25000), }; diff --git a/drivers/regulator/mt6397-regulator.c b/drivers/regulator/mt6397-regulator.c index fd9ed864a0c1..269c2a6028e8 100644 --- a/drivers/regulator/mt6397-regulator.c +++ b/drivers/regulator/mt6397-regulator.c @@ -102,15 +102,15 @@ struct mt6397_regulator_info { .qi = BIT(15), \ } -static const struct regulator_linear_range buck_volt_range1[] = { +static const struct linear_range buck_volt_range1[] = { REGULATOR_LINEAR_RANGE(700000, 0, 0x7f, 6250), }; -static const struct regulator_linear_range buck_volt_range2[] = { +static const struct linear_range buck_volt_range2[] = { REGULATOR_LINEAR_RANGE(800000, 0, 0x7f, 6250), }; -static const struct regulator_linear_range buck_volt_range3[] = { +static const struct linear_range buck_volt_range3[] = { REGULATOR_LINEAR_RANGE(1500000, 0, 0x1f, 20000), }; diff --git a/drivers/regulator/palmas-regulator.c b/drivers/regulator/palmas-regulator.c index 31325912d311..337dd614695e 100644 --- a/drivers/regulator/palmas-regulator.c +++ b/drivers/regulator/palmas-regulator.c @@ -22,14 +22,14 @@ #include <linux/of_platform.h> #include <linux/regulator/of_regulator.h> -static const struct regulator_linear_range smps_low_ranges[] = { +static const struct linear_range smps_low_ranges[] = { REGULATOR_LINEAR_RANGE(0, 0x0, 0x0, 0), REGULATOR_LINEAR_RANGE(500000, 0x1, 0x6, 0), REGULATOR_LINEAR_RANGE(510000, 0x7, 0x79, 10000), REGULATOR_LINEAR_RANGE(1650000, 0x7A, 0x7f, 0), }; -static const struct regulator_linear_range smps_high_ranges[] = { +static const struct linear_range smps_high_ranges[] = { REGULATOR_LINEAR_RANGE(0, 0x0, 0x0, 0), REGULATOR_LINEAR_RANGE(1000000, 0x1, 0x6, 0), REGULATOR_LINEAR_RANGE(1020000, 0x7, 0x79, 20000), diff --git a/drivers/regulator/qcom-rpmh-regulator.c b/drivers/regulator/qcom-rpmh-regulator.c index c86ad40015ce..79bdc129cb50 100644 --- a/drivers/regulator/qcom-rpmh-regulator.c +++ b/drivers/regulator/qcom-rpmh-regulator.c @@ -86,7 +86,7 @@ enum rpmh_regulator_type { struct rpmh_vreg_hw_data { enum rpmh_regulator_type regulator_type; const struct regulator_ops *ops; - const struct regulator_linear_range voltage_range; + const struct linear_range voltage_range; int n_voltages; int hpm_min_load_uA; const int *pmic_mode_map; @@ -832,11 +832,11 @@ static const struct rpmh_vreg_init_data pm8150_vreg_data[] = { RPMH_VREG("ldo10", "ldo%s10", &pmic5_pldo, "vdd-l2-l10"), RPMH_VREG("ldo11", "ldo%s11", &pmic5_nldo, "vdd-l1-l8-l11"), RPMH_VREG("ldo12", "ldo%s12", &pmic5_pldo_lv, "vdd-l7-l12-l14-l15"), - RPMH_VREG("ldo13", "ldo%s13", &pmic5_pldo, "vdd-l13-l6-l17"), + RPMH_VREG("ldo13", "ldo%s13", &pmic5_pldo, "vdd-l13-l16-l17"), RPMH_VREG("ldo14", "ldo%s14", &pmic5_pldo_lv, "vdd-l7-l12-l14-l15"), RPMH_VREG("ldo15", "ldo%s15", &pmic5_pldo_lv, "vdd-l7-l12-l14-l15"), - RPMH_VREG("ldo16", "ldo%s16", &pmic5_pldo, "vdd-l13-l6-l17"), - RPMH_VREG("ldo17", "ldo%s17", &pmic5_pldo, "vdd-l13-l6-l17"), + RPMH_VREG("ldo16", "ldo%s16", &pmic5_pldo, "vdd-l13-l16-l17"), + RPMH_VREG("ldo17", "ldo%s17", &pmic5_pldo, "vdd-l13-l16-l17"), RPMH_VREG("ldo18", "ldo%s18", &pmic5_nldo, "vdd-l3-l4-l5-l18"), {}, }; @@ -857,7 +857,7 @@ static const struct rpmh_vreg_init_data pm8150l_vreg_data[] = { RPMH_VREG("ldo5", "ldo%s5", &pmic5_pldo, "vdd-l4-l5-l6"), RPMH_VREG("ldo6", "ldo%s6", &pmic5_pldo, "vdd-l4-l5-l6"), RPMH_VREG("ldo7", "ldo%s7", &pmic5_pldo, "vdd-l7-l11"), - RPMH_VREG("ldo8", "ldo%s8", &pmic5_pldo_lv, "vdd-l1-l8-l11"), + RPMH_VREG("ldo8", "ldo%s8", &pmic5_pldo_lv, "vdd-l1-l8"), RPMH_VREG("ldo9", "ldo%s9", &pmic5_pldo, "vdd-l9-l10"), RPMH_VREG("ldo10", "ldo%s10", &pmic5_pldo, "vdd-l9-l10"), RPMH_VREG("ldo11", "ldo%s11", &pmic5_pldo, "vdd-l7-l11"), diff --git a/drivers/regulator/qcom_rpm-regulator.c b/drivers/regulator/qcom_rpm-regulator.c index 7fc97f23fcf4..0066f850f15d 100644 --- a/drivers/regulator/qcom_rpm-regulator.c +++ b/drivers/regulator/qcom_rpm-regulator.c @@ -148,41 +148,41 @@ static const struct rpm_reg_parts rpm8960_ncp_parts = { /* * Physically available PMIC regulator voltage ranges */ -static const struct regulator_linear_range pldo_ranges[] = { +static const struct linear_range pldo_ranges[] = { REGULATOR_LINEAR_RANGE( 750000, 0, 59, 12500), REGULATOR_LINEAR_RANGE(1500000, 60, 123, 25000), REGULATOR_LINEAR_RANGE(3100000, 124, 160, 50000), }; -static const struct regulator_linear_range nldo_ranges[] = { +static const struct linear_range nldo_ranges[] = { REGULATOR_LINEAR_RANGE( 750000, 0, 63, 12500), }; -static const struct regulator_linear_range nldo1200_ranges[] = { +static const struct linear_range nldo1200_ranges[] = { REGULATOR_LINEAR_RANGE( 375000, 0, 59, 6250), REGULATOR_LINEAR_RANGE( 750000, 60, 123, 12500), }; -static const struct regulator_linear_range smps_ranges[] = { +static const struct linear_range smps_ranges[] = { REGULATOR_LINEAR_RANGE( 375000, 0, 29, 12500), REGULATOR_LINEAR_RANGE( 750000, 30, 89, 12500), REGULATOR_LINEAR_RANGE(1500000, 90, 153, 25000), }; -static const struct regulator_linear_range ftsmps_ranges[] = { +static const struct linear_range ftsmps_ranges[] = { REGULATOR_LINEAR_RANGE( 350000, 0, 6, 50000), REGULATOR_LINEAR_RANGE( 700000, 7, 63, 12500), REGULATOR_LINEAR_RANGE(1500000, 64, 100, 50000), }; -static const struct regulator_linear_range smb208_ranges[] = { +static const struct linear_range smb208_ranges[] = { REGULATOR_LINEAR_RANGE( 375000, 0, 29, 12500), REGULATOR_LINEAR_RANGE( 750000, 30, 89, 12500), REGULATOR_LINEAR_RANGE(1500000, 90, 153, 25000), REGULATOR_LINEAR_RANGE(3100000, 154, 234, 25000), }; -static const struct regulator_linear_range ncp_ranges[] = { +static const struct linear_range ncp_ranges[] = { REGULATOR_LINEAR_RANGE(1500000, 0, 31, 50000), }; @@ -604,16 +604,6 @@ static const struct qcom_rpm_reg pm8921_smps = { .supports_force_mode_bypass = false, }; -static const struct qcom_rpm_reg pm8921_ftsmps = { - .desc.linear_ranges = ftsmps_ranges, - .desc.n_linear_ranges = ARRAY_SIZE(ftsmps_ranges), - .desc.n_voltages = 101, - .desc.ops = &uV_ops, - .parts = &rpm8960_smps_parts, - .supports_force_mode_auto = true, - .supports_force_mode_bypass = false, -}; - static const struct qcom_rpm_reg pm8921_ncp = { .desc.linear_ranges = ncp_ranges, .desc.n_linear_ranges = ARRAY_SIZE(ncp_ranges), diff --git a/drivers/regulator/qcom_smd-regulator.c b/drivers/regulator/qcom_smd-regulator.c index fdde4195cefb..53a64d856926 100644 --- a/drivers/regulator/qcom_smd-regulator.c +++ b/drivers/regulator/qcom_smd-regulator.c @@ -199,7 +199,7 @@ static const struct regulator_ops rpm_bob_ops = { }; static const struct regulator_desc pma8084_hfsmps = { - .linear_ranges = (struct regulator_linear_range[]) { + .linear_ranges = (struct linear_range[]) { REGULATOR_LINEAR_RANGE(375000, 0, 95, 12500), REGULATOR_LINEAR_RANGE(1550000, 96, 158, 25000), }, @@ -209,7 +209,7 @@ static const struct regulator_desc pma8084_hfsmps = { }; static const struct regulator_desc pma8084_ftsmps = { - .linear_ranges = (struct regulator_linear_range[]) { + .linear_ranges = (struct linear_range[]) { REGULATOR_LINEAR_RANGE(350000, 0, 184, 5000), REGULATOR_LINEAR_RANGE(1280000, 185, 261, 10000), }, @@ -219,7 +219,7 @@ static const struct regulator_desc pma8084_ftsmps = { }; static const struct regulator_desc pma8084_pldo = { - .linear_ranges = (struct regulator_linear_range[]) { + .linear_ranges = (struct linear_range[]) { REGULATOR_LINEAR_RANGE( 750000, 0, 63, 12500), REGULATOR_LINEAR_RANGE(1550000, 64, 126, 25000), REGULATOR_LINEAR_RANGE(3100000, 127, 163, 50000), @@ -230,7 +230,7 @@ static const struct regulator_desc pma8084_pldo = { }; static const struct regulator_desc pma8084_nldo = { - .linear_ranges = (struct regulator_linear_range[]) { + .linear_ranges = (struct linear_range[]) { REGULATOR_LINEAR_RANGE(750000, 0, 63, 12500), }, .n_linear_ranges = 1, @@ -243,7 +243,7 @@ static const struct regulator_desc pma8084_switch = { }; static const struct regulator_desc pm8x41_hfsmps = { - .linear_ranges = (struct regulator_linear_range[]) { + .linear_ranges = (struct linear_range[]) { REGULATOR_LINEAR_RANGE( 375000, 0, 95, 12500), REGULATOR_LINEAR_RANGE(1575000, 96, 158, 25000), }, @@ -253,7 +253,7 @@ static const struct regulator_desc pm8x41_hfsmps = { }; static const struct regulator_desc pm8841_ftsmps = { - .linear_ranges = (struct regulator_linear_range[]) { + .linear_ranges = (struct linear_range[]) { REGULATOR_LINEAR_RANGE(350000, 0, 184, 5000), REGULATOR_LINEAR_RANGE(1280000, 185, 261, 10000), }, @@ -263,7 +263,7 @@ static const struct regulator_desc pm8841_ftsmps = { }; static const struct regulator_desc pm8941_boost = { - .linear_ranges = (struct regulator_linear_range[]) { + .linear_ranges = (struct linear_range[]) { REGULATOR_LINEAR_RANGE(4000000, 0, 30, 50000), }, .n_linear_ranges = 1, @@ -272,7 +272,7 @@ static const struct regulator_desc pm8941_boost = { }; static const struct regulator_desc pm8941_pldo = { - .linear_ranges = (struct regulator_linear_range[]) { + .linear_ranges = (struct linear_range[]) { REGULATOR_LINEAR_RANGE( 750000, 0, 63, 12500), REGULATOR_LINEAR_RANGE(1550000, 64, 126, 25000), REGULATOR_LINEAR_RANGE(3100000, 127, 163, 50000), @@ -283,7 +283,7 @@ static const struct regulator_desc pm8941_pldo = { }; static const struct regulator_desc pm8941_nldo = { - .linear_ranges = (struct regulator_linear_range[]) { + .linear_ranges = (struct linear_range[]) { REGULATOR_LINEAR_RANGE(750000, 0, 63, 12500), }, .n_linear_ranges = 1, @@ -302,7 +302,7 @@ static const struct regulator_desc pm8941_switch = { }; static const struct regulator_desc pm8916_pldo = { - .linear_ranges = (struct regulator_linear_range[]) { + .linear_ranges = (struct linear_range[]) { REGULATOR_LINEAR_RANGE(750000, 0, 208, 12500), }, .n_linear_ranges = 1, @@ -311,7 +311,7 @@ static const struct regulator_desc pm8916_pldo = { }; static const struct regulator_desc pm8916_nldo = { - .linear_ranges = (struct regulator_linear_range[]) { + .linear_ranges = (struct linear_range[]) { REGULATOR_LINEAR_RANGE(375000, 0, 93, 12500), }, .n_linear_ranges = 1, @@ -320,7 +320,7 @@ static const struct regulator_desc pm8916_nldo = { }; static const struct regulator_desc pm8916_buck_lvo_smps = { - .linear_ranges = (struct regulator_linear_range[]) { + .linear_ranges = (struct linear_range[]) { REGULATOR_LINEAR_RANGE(375000, 0, 95, 12500), REGULATOR_LINEAR_RANGE(750000, 96, 127, 25000), }, @@ -330,7 +330,7 @@ static const struct regulator_desc pm8916_buck_lvo_smps = { }; static const struct regulator_desc pm8916_buck_hvo_smps = { - .linear_ranges = (struct regulator_linear_range[]) { + .linear_ranges = (struct linear_range[]) { REGULATOR_LINEAR_RANGE(1550000, 0, 31, 25000), }, .n_linear_ranges = 1, @@ -339,7 +339,7 @@ static const struct regulator_desc pm8916_buck_hvo_smps = { }; static const struct regulator_desc pm8950_hfsmps = { - .linear_ranges = (struct regulator_linear_range[]) { + .linear_ranges = (struct linear_range[]) { REGULATOR_LINEAR_RANGE(375000, 0, 95, 12500), REGULATOR_LINEAR_RANGE(1550000, 96, 127, 25000), }, @@ -349,7 +349,7 @@ static const struct regulator_desc pm8950_hfsmps = { }; static const struct regulator_desc pm8950_ftsmps2p5 = { - .linear_ranges = (struct regulator_linear_range[]) { + .linear_ranges = (struct linear_range[]) { REGULATOR_LINEAR_RANGE(80000, 0, 255, 5000), REGULATOR_LINEAR_RANGE(160000, 256, 460, 10000), }, @@ -359,7 +359,7 @@ static const struct regulator_desc pm8950_ftsmps2p5 = { }; static const struct regulator_desc pm8950_ult_nldo = { - .linear_ranges = (struct regulator_linear_range[]) { + .linear_ranges = (struct linear_range[]) { REGULATOR_LINEAR_RANGE(375000, 0, 202, 12500), }, .n_linear_ranges = 1, @@ -368,7 +368,7 @@ static const struct regulator_desc pm8950_ult_nldo = { }; static const struct regulator_desc pm8950_ult_pldo = { - .linear_ranges = (struct regulator_linear_range[]) { + .linear_ranges = (struct linear_range[]) { REGULATOR_LINEAR_RANGE(1750000, 0, 127, 12500), }, .n_linear_ranges = 1, @@ -377,7 +377,7 @@ static const struct regulator_desc pm8950_ult_pldo = { }; static const struct regulator_desc pm8950_pldo_lv = { - .linear_ranges = (struct regulator_linear_range[]) { + .linear_ranges = (struct linear_range[]) { REGULATOR_LINEAR_RANGE(1500000, 0, 16, 25000), }, .n_linear_ranges = 1, @@ -386,7 +386,7 @@ static const struct regulator_desc pm8950_pldo_lv = { }; static const struct regulator_desc pm8950_pldo = { - .linear_ranges = (struct regulator_linear_range[]) { + .linear_ranges = (struct linear_range[]) { REGULATOR_LINEAR_RANGE(975000, 0, 164, 12500), }, .n_linear_ranges = 1, @@ -396,7 +396,7 @@ static const struct regulator_desc pm8950_pldo = { static const struct regulator_desc pm8994_hfsmps = { - .linear_ranges = (struct regulator_linear_range[]) { + .linear_ranges = (struct linear_range[]) { REGULATOR_LINEAR_RANGE( 375000, 0, 95, 12500), REGULATOR_LINEAR_RANGE(1550000, 96, 158, 25000), }, @@ -406,7 +406,7 @@ static const struct regulator_desc pm8994_hfsmps = { }; static const struct regulator_desc pm8994_ftsmps = { - .linear_ranges = (struct regulator_linear_range[]) { + .linear_ranges = (struct linear_range[]) { REGULATOR_LINEAR_RANGE(350000, 0, 199, 5000), REGULATOR_LINEAR_RANGE(700000, 200, 349, 10000), }, @@ -416,7 +416,7 @@ static const struct regulator_desc pm8994_ftsmps = { }; static const struct regulator_desc pm8994_nldo = { - .linear_ranges = (struct regulator_linear_range[]) { + .linear_ranges = (struct linear_range[]) { REGULATOR_LINEAR_RANGE(750000, 0, 63, 12500), }, .n_linear_ranges = 1, @@ -425,7 +425,7 @@ static const struct regulator_desc pm8994_nldo = { }; static const struct regulator_desc pm8994_pldo = { - .linear_ranges = (struct regulator_linear_range[]) { + .linear_ranges = (struct linear_range[]) { REGULATOR_LINEAR_RANGE( 750000, 0, 63, 12500), REGULATOR_LINEAR_RANGE(1550000, 64, 126, 25000), REGULATOR_LINEAR_RANGE(3100000, 127, 163, 50000), @@ -446,7 +446,7 @@ static const struct regulator_desc pm8994_lnldo = { }; static const struct regulator_desc pmi8994_ftsmps = { - .linear_ranges = (struct regulator_linear_range[]) { + .linear_ranges = (struct linear_range[]) { REGULATOR_LINEAR_RANGE(350000, 0, 199, 5000), REGULATOR_LINEAR_RANGE(700000, 200, 349, 10000), }, @@ -456,7 +456,7 @@ static const struct regulator_desc pmi8994_ftsmps = { }; static const struct regulator_desc pmi8994_hfsmps = { - .linear_ranges = (struct regulator_linear_range[]) { + .linear_ranges = (struct linear_range[]) { REGULATOR_LINEAR_RANGE(350000, 0, 80, 12500), REGULATOR_LINEAR_RANGE(700000, 81, 141, 25000), }, @@ -466,7 +466,7 @@ static const struct regulator_desc pmi8994_hfsmps = { }; static const struct regulator_desc pmi8994_bby = { - .linear_ranges = (struct regulator_linear_range[]) { + .linear_ranges = (struct linear_range[]) { REGULATOR_LINEAR_RANGE(3000000, 0, 44, 50000), }, .n_linear_ranges = 1, @@ -475,7 +475,7 @@ static const struct regulator_desc pmi8994_bby = { }; static const struct regulator_desc pmi8994_boost = { - .linear_ranges = (struct regulator_linear_range[]) { + .linear_ranges = (struct linear_range[]) { REGULATOR_LINEAR_RANGE(4000000, 0, 30, 50000), }, .n_linear_ranges = 1, @@ -484,7 +484,7 @@ static const struct regulator_desc pmi8994_boost = { }; static const struct regulator_desc pm8998_ftsmps = { - .linear_ranges = (struct regulator_linear_range[]) { + .linear_ranges = (struct linear_range[]) { REGULATOR_LINEAR_RANGE(320000, 0, 258, 4000), }, .n_linear_ranges = 1, @@ -493,7 +493,7 @@ static const struct regulator_desc pm8998_ftsmps = { }; static const struct regulator_desc pm8998_hfsmps = { - .linear_ranges = (struct regulator_linear_range[]) { + .linear_ranges = (struct linear_range[]) { REGULATOR_LINEAR_RANGE(320000, 0, 215, 8000), }, .n_linear_ranges = 1, @@ -502,7 +502,7 @@ static const struct regulator_desc pm8998_hfsmps = { }; static const struct regulator_desc pm8998_nldo = { - .linear_ranges = (struct regulator_linear_range[]) { + .linear_ranges = (struct linear_range[]) { REGULATOR_LINEAR_RANGE(312000, 0, 127, 8000), }, .n_linear_ranges = 1, @@ -511,7 +511,7 @@ static const struct regulator_desc pm8998_nldo = { }; static const struct regulator_desc pm8998_pldo = { - .linear_ranges = (struct regulator_linear_range[]) { + .linear_ranges = (struct linear_range[]) { REGULATOR_LINEAR_RANGE(1664000, 0, 255, 8000), }, .n_linear_ranges = 1, @@ -520,7 +520,7 @@ static const struct regulator_desc pm8998_pldo = { }; static const struct regulator_desc pm8998_pldo_lv = { - .linear_ranges = (struct regulator_linear_range[]) { + .linear_ranges = (struct linear_range[]) { REGULATOR_LINEAR_RANGE(1256000, 0, 127, 8000), }, .n_linear_ranges = 1, @@ -533,7 +533,7 @@ static const struct regulator_desc pm8998_switch = { }; static const struct regulator_desc pmi8998_bob = { - .linear_ranges = (struct regulator_linear_range[]) { + .linear_ranges = (struct linear_range[]) { REGULATOR_LINEAR_RANGE(1824000, 0, 83, 32000), }, .n_linear_ranges = 1, @@ -542,7 +542,7 @@ static const struct regulator_desc pmi8998_bob = { }; static const struct regulator_desc pms405_hfsmps3 = { - .linear_ranges = (struct regulator_linear_range[]) { + .linear_ranges = (struct linear_range[]) { REGULATOR_LINEAR_RANGE(320000, 0, 215, 8000), }, .n_linear_ranges = 1, @@ -551,7 +551,7 @@ static const struct regulator_desc pms405_hfsmps3 = { }; static const struct regulator_desc pms405_nldo300 = { - .linear_ranges = (struct regulator_linear_range[]) { + .linear_ranges = (struct linear_range[]) { REGULATOR_LINEAR_RANGE(312000, 0, 127, 8000), }, .n_linear_ranges = 1, @@ -560,7 +560,7 @@ static const struct regulator_desc pms405_nldo300 = { }; static const struct regulator_desc pms405_nldo1200 = { - .linear_ranges = (struct regulator_linear_range[]) { + .linear_ranges = (struct linear_range[]) { REGULATOR_LINEAR_RANGE(312000, 0, 127, 8000), }, .n_linear_ranges = 1, @@ -569,7 +569,7 @@ static const struct regulator_desc pms405_nldo1200 = { }; static const struct regulator_desc pms405_pldo50 = { - .linear_ranges = (struct regulator_linear_range[]) { + .linear_ranges = (struct linear_range[]) { REGULATOR_LINEAR_RANGE(1664000, 0, 128, 16000), }, .n_linear_ranges = 1, @@ -578,7 +578,7 @@ static const struct regulator_desc pms405_pldo50 = { }; static const struct regulator_desc pms405_pldo150 = { - .linear_ranges = (struct regulator_linear_range[]) { + .linear_ranges = (struct linear_range[]) { REGULATOR_LINEAR_RANGE(1664000, 0, 128, 16000), }, .n_linear_ranges = 1, @@ -587,7 +587,7 @@ static const struct regulator_desc pms405_pldo150 = { }; static const struct regulator_desc pms405_pldo600 = { - .linear_ranges = (struct regulator_linear_range[]) { + .linear_ranges = (struct linear_range[]) { REGULATOR_LINEAR_RANGE(1256000, 0, 98, 8000), }, .n_linear_ranges = 1, diff --git a/drivers/regulator/rk808-regulator.c b/drivers/regulator/rk808-regulator.c index 31f79fda3238..e926c1a85846 100644 --- a/drivers/regulator/rk808-regulator.c +++ b/drivers/regulator/rk808-regulator.c @@ -165,14 +165,14 @@ static const int rk808_buck_config_regs[] = { RK808_BUCK4_CONFIG_REG, }; -static const struct regulator_linear_range rk808_ldo3_voltage_ranges[] = { +static const struct linear_range rk808_ldo3_voltage_ranges[] = { REGULATOR_LINEAR_RANGE(800000, 0, 13, 100000), REGULATOR_LINEAR_RANGE(2500000, 15, 15, 0), }; #define RK809_BUCK5_SEL_CNT (8) -static const struct regulator_linear_range rk809_buck5_voltage_ranges[] = { +static const struct linear_range rk809_buck5_voltage_ranges[] = { REGULATOR_LINEAR_RANGE(1500000, 0, 0, 0), REGULATOR_LINEAR_RANGE(1800000, 1, 3, 200000), REGULATOR_LINEAR_RANGE(2800000, 4, 5, 200000), @@ -201,14 +201,14 @@ static const struct regulator_linear_range rk809_buck5_voltage_ranges[] = { #define RK817_BUCK1_SEL_CNT (RK817_BUCK1_SEL0 + RK817_BUCK1_SEL1 + 1) #define RK817_BUCK3_SEL_CNT (RK817_BUCK1_SEL0 + RK817_BUCK3_SEL1 + 1) -static const struct regulator_linear_range rk817_buck1_voltage_ranges[] = { +static const struct linear_range rk817_buck1_voltage_ranges[] = { REGULATOR_LINEAR_RANGE(RK817_BUCK1_MIN0, 0, RK817_BUCK1_SEL0, RK817_BUCK1_STP0), REGULATOR_LINEAR_RANGE(RK817_BUCK1_MIN1, RK817_BUCK1_SEL0 + 1, RK817_BUCK1_SEL_CNT, RK817_BUCK1_STP1), }; -static const struct regulator_linear_range rk817_buck3_voltage_ranges[] = { +static const struct linear_range rk817_buck3_voltage_ranges[] = { REGULATOR_LINEAR_RANGE(RK817_BUCK1_MIN0, 0, RK817_BUCK1_SEL0, RK817_BUCK1_STP0), REGULATOR_LINEAR_RANGE(RK817_BUCK1_MIN1, RK817_BUCK1_SEL0 + 1, @@ -665,7 +665,7 @@ static const struct regulator_ops rk808_switch_ops = { .set_suspend_disable = rk808_set_suspend_disable, }; -static const struct regulator_linear_range rk805_buck_1_2_voltage_ranges[] = { +static const struct linear_range rk805_buck_1_2_voltage_ranges[] = { REGULATOR_LINEAR_RANGE(712500, 0, 59, 12500), REGULATOR_LINEAR_RANGE(1800000, 60, 62, 200000), REGULATOR_LINEAR_RANGE(2300000, 63, 63, 0), diff --git a/drivers/regulator/s2mps11.c b/drivers/regulator/s2mps11.c index 23d288278957..33cf84bce05a 100644 --- a/drivers/regulator/s2mps11.c +++ b/drivers/regulator/s2mps11.c @@ -749,37 +749,37 @@ static const struct regulator_ops s2mps15_reg_buck_ops = { } /* voltage range for s2mps15 LDO 3, 5, 15, 16, 18, 20, 23 and 27 */ -static const struct regulator_linear_range s2mps15_ldo_voltage_ranges1[] = { +static const struct linear_range s2mps15_ldo_voltage_ranges1[] = { REGULATOR_LINEAR_RANGE(1000000, 0xc, 0x38, 25000), }; /* voltage range for s2mps15 LDO 2, 6, 14, 17, 19, 21, 24 and 25 */ -static const struct regulator_linear_range s2mps15_ldo_voltage_ranges2[] = { +static const struct linear_range s2mps15_ldo_voltage_ranges2[] = { REGULATOR_LINEAR_RANGE(1800000, 0x0, 0x3f, 25000), }; /* voltage range for s2mps15 LDO 4, 11, 12, 13, 22 and 26 */ -static const struct regulator_linear_range s2mps15_ldo_voltage_ranges3[] = { +static const struct linear_range s2mps15_ldo_voltage_ranges3[] = { REGULATOR_LINEAR_RANGE(700000, 0x0, 0x34, 12500), }; /* voltage range for s2mps15 LDO 7, 8, 9 and 10 */ -static const struct regulator_linear_range s2mps15_ldo_voltage_ranges4[] = { +static const struct linear_range s2mps15_ldo_voltage_ranges4[] = { REGULATOR_LINEAR_RANGE(700000, 0x10, 0x20, 25000), }; /* voltage range for s2mps15 LDO 1 */ -static const struct regulator_linear_range s2mps15_ldo_voltage_ranges5[] = { +static const struct linear_range s2mps15_ldo_voltage_ranges5[] = { REGULATOR_LINEAR_RANGE(500000, 0x0, 0x20, 12500), }; /* voltage range for s2mps15 BUCK 1, 2, 3, 4, 5, 6 and 7 */ -static const struct regulator_linear_range s2mps15_buck_voltage_ranges1[] = { +static const struct linear_range s2mps15_buck_voltage_ranges1[] = { REGULATOR_LINEAR_RANGE(500000, 0x20, 0xc0, 6250), }; /* voltage range for s2mps15 BUCK 8, 9 and 10 */ -static const struct regulator_linear_range s2mps15_buck_voltage_ranges2[] = { +static const struct linear_range s2mps15_buck_voltage_ranges2[] = { REGULATOR_LINEAR_RANGE(1000000, 0x20, 0x78, 12500), }; diff --git a/drivers/regulator/sky81452-regulator.c b/drivers/regulator/sky81452-regulator.c index 177dede82a61..37658affe072 100644 --- a/drivers/regulator/sky81452-regulator.c +++ b/drivers/regulator/sky81452-regulator.c @@ -32,7 +32,7 @@ static const struct regulator_ops sky81452_reg_ops = { .is_enabled = regulator_is_enabled_regmap, }; -static const struct regulator_linear_range sky81452_reg_ranges[] = { +static const struct linear_range sky81452_reg_ranges[] = { REGULATOR_LINEAR_RANGE(4500000, 0, 14, 250000), REGULATOR_LINEAR_RANGE(9000000, 15, 31, 1000000), }; diff --git a/drivers/regulator/stpmic1_regulator.c b/drivers/regulator/stpmic1_regulator.c index f3d7d007ecbb..adc9973d1b2f 100644 --- a/drivers/regulator/stpmic1_regulator.c +++ b/drivers/regulator/stpmic1_regulator.c @@ -57,13 +57,13 @@ enum { /* Ramp delay worst case is (2250uV/uS) */ #define PMIC_RAMP_DELAY 2200 -static const struct regulator_linear_range buck1_ranges[] = { +static const struct linear_range buck1_ranges[] = { REGULATOR_LINEAR_RANGE(725000, 0, 4, 0), REGULATOR_LINEAR_RANGE(725000, 5, 36, 25000), REGULATOR_LINEAR_RANGE(1500000, 37, 63, 0), }; -static const struct regulator_linear_range buck2_ranges[] = { +static const struct linear_range buck2_ranges[] = { REGULATOR_LINEAR_RANGE(1000000, 0, 17, 0), REGULATOR_LINEAR_RANGE(1050000, 18, 19, 0), REGULATOR_LINEAR_RANGE(1100000, 20, 21, 0), @@ -77,7 +77,7 @@ static const struct regulator_linear_range buck2_ranges[] = { REGULATOR_LINEAR_RANGE(1500000, 36, 63, 0), }; -static const struct regulator_linear_range buck3_ranges[] = { +static const struct linear_range buck3_ranges[] = { REGULATOR_LINEAR_RANGE(1000000, 0, 19, 0), REGULATOR_LINEAR_RANGE(1100000, 20, 23, 0), REGULATOR_LINEAR_RANGE(1200000, 24, 27, 0), @@ -87,7 +87,7 @@ static const struct regulator_linear_range buck3_ranges[] = { REGULATOR_LINEAR_RANGE(3400000, 56, 63, 0), }; -static const struct regulator_linear_range buck4_ranges[] = { +static const struct linear_range buck4_ranges[] = { REGULATOR_LINEAR_RANGE(600000, 0, 27, 25000), REGULATOR_LINEAR_RANGE(1300000, 28, 29, 0), REGULATOR_LINEAR_RANGE(1350000, 30, 31, 0), @@ -97,19 +97,19 @@ static const struct regulator_linear_range buck4_ranges[] = { REGULATOR_LINEAR_RANGE(3900000, 61, 63, 0), }; -static const struct regulator_linear_range ldo1_ranges[] = { +static const struct linear_range ldo1_ranges[] = { REGULATOR_LINEAR_RANGE(1700000, 0, 7, 0), REGULATOR_LINEAR_RANGE(1700000, 8, 24, 100000), REGULATOR_LINEAR_RANGE(3300000, 25, 31, 0), }; -static const struct regulator_linear_range ldo2_ranges[] = { +static const struct linear_range ldo2_ranges[] = { REGULATOR_LINEAR_RANGE(1700000, 0, 7, 0), REGULATOR_LINEAR_RANGE(1700000, 8, 24, 100000), REGULATOR_LINEAR_RANGE(3300000, 25, 30, 0), }; -static const struct regulator_linear_range ldo3_ranges[] = { +static const struct linear_range ldo3_ranges[] = { REGULATOR_LINEAR_RANGE(1700000, 0, 7, 0), REGULATOR_LINEAR_RANGE(1700000, 8, 24, 100000), REGULATOR_LINEAR_RANGE(3300000, 25, 30, 0), @@ -117,13 +117,13 @@ static const struct regulator_linear_range ldo3_ranges[] = { REGULATOR_LINEAR_RANGE(500000, 31, 31, 0), }; -static const struct regulator_linear_range ldo5_ranges[] = { +static const struct linear_range ldo5_ranges[] = { REGULATOR_LINEAR_RANGE(1700000, 0, 7, 0), REGULATOR_LINEAR_RANGE(1700000, 8, 30, 100000), REGULATOR_LINEAR_RANGE(3900000, 31, 31, 0), }; -static const struct regulator_linear_range ldo6_ranges[] = { +static const struct linear_range ldo6_ranges[] = { REGULATOR_LINEAR_RANGE(900000, 0, 24, 100000), REGULATOR_LINEAR_RANGE(3300000, 25, 31, 0), }; diff --git a/drivers/regulator/tps65086-regulator.c b/drivers/regulator/tps65086-regulator.c index 5a5e9b5bf4be..9910e949373c 100644 --- a/drivers/regulator/tps65086-regulator.c +++ b/drivers/regulator/tps65086-regulator.c @@ -71,23 +71,23 @@ struct tps65086_regulator { unsigned int decay_mask; }; -static const struct regulator_linear_range tps65086_10mv_ranges[] = { +static const struct linear_range tps65086_10mv_ranges[] = { REGULATOR_LINEAR_RANGE(0, 0x0, 0x0, 0), REGULATOR_LINEAR_RANGE(410000, 0x1, 0x7F, 10000), }; -static const struct regulator_linear_range tps65086_buck126_25mv_ranges[] = { +static const struct linear_range tps65086_buck126_25mv_ranges[] = { REGULATOR_LINEAR_RANGE(0, 0x0, 0x0, 0), REGULATOR_LINEAR_RANGE(1000000, 0x1, 0x18, 0), REGULATOR_LINEAR_RANGE(1025000, 0x19, 0x7F, 25000), }; -static const struct regulator_linear_range tps65086_buck345_25mv_ranges[] = { +static const struct linear_range tps65086_buck345_25mv_ranges[] = { REGULATOR_LINEAR_RANGE(0, 0x0, 0x0, 0), REGULATOR_LINEAR_RANGE(425000, 0x1, 0x7F, 25000), }; -static const struct regulator_linear_range tps65086_ldoa1_ranges[] = { +static const struct linear_range tps65086_ldoa1_ranges[] = { REGULATOR_LINEAR_RANGE(1350000, 0x0, 0x0, 0), REGULATOR_LINEAR_RANGE(1500000, 0x1, 0x7, 100000), REGULATOR_LINEAR_RANGE(2300000, 0x8, 0xB, 100000), @@ -95,7 +95,7 @@ static const struct regulator_linear_range tps65086_ldoa1_ranges[] = { REGULATOR_LINEAR_RANGE(3300000, 0xE, 0xE, 0), }; -static const struct regulator_linear_range tps65086_ldoa23_ranges[] = { +static const struct linear_range tps65086_ldoa23_ranges[] = { REGULATOR_LINEAR_RANGE(700000, 0x0, 0xD, 50000), REGULATOR_LINEAR_RANGE(1400000, 0xE, 0xF, 100000), }; diff --git a/drivers/regulator/tps65217-regulator.c b/drivers/regulator/tps65217-regulator.c index 67ba78da77ec..d27dbbafcf72 100644 --- a/drivers/regulator/tps65217-regulator.c +++ b/drivers/regulator/tps65217-regulator.c @@ -56,14 +56,14 @@ static const unsigned int LDO1_VSEL_table[] = { 2800000, 3000000, 3100000, 3300000, }; -static const struct regulator_linear_range tps65217_uv1_ranges[] = { +static const struct linear_range tps65217_uv1_ranges[] = { REGULATOR_LINEAR_RANGE(900000, 0, 24, 25000), REGULATOR_LINEAR_RANGE(1550000, 25, 52, 50000), REGULATOR_LINEAR_RANGE(3000000, 53, 55, 100000), REGULATOR_LINEAR_RANGE(3300000, 56, 63, 0), }; -static const struct regulator_linear_range tps65217_uv2_ranges[] = { +static const struct linear_range tps65217_uv2_ranges[] = { REGULATOR_LINEAR_RANGE(1500000, 0, 8, 50000), REGULATOR_LINEAR_RANGE(2000000, 9, 13, 100000), REGULATOR_LINEAR_RANGE(2450000, 14, 31, 50000), diff --git a/drivers/regulator/tps65218-regulator.c b/drivers/regulator/tps65218-regulator.c index b72035610013..05d13f807918 100644 --- a/drivers/regulator/tps65218-regulator.c +++ b/drivers/regulator/tps65218-regulator.c @@ -56,17 +56,17 @@ .bypass_mask = _sm, \ } \ -static const struct regulator_linear_range dcdc1_dcdc2_ranges[] = { +static const struct linear_range dcdc1_dcdc2_ranges[] = { REGULATOR_LINEAR_RANGE(850000, 0x0, 0x32, 10000), REGULATOR_LINEAR_RANGE(1375000, 0x33, 0x3f, 25000), }; -static const struct regulator_linear_range ldo1_dcdc3_ranges[] = { +static const struct linear_range ldo1_dcdc3_ranges[] = { REGULATOR_LINEAR_RANGE(900000, 0x0, 0x1a, 25000), REGULATOR_LINEAR_RANGE(1600000, 0x1b, 0x3f, 50000), }; -static const struct regulator_linear_range dcdc4_ranges[] = { +static const struct linear_range dcdc4_ranges[] = { REGULATOR_LINEAR_RANGE(1175000, 0x0, 0xf, 25000), REGULATOR_LINEAR_RANGE(1600000, 0x10, 0x34, 50000), }; diff --git a/drivers/regulator/tps65912-regulator.c b/drivers/regulator/tps65912-regulator.c index 276faeddc370..15c79931ea89 100644 --- a/drivers/regulator/tps65912-regulator.c +++ b/drivers/regulator/tps65912-regulator.c @@ -46,11 +46,11 @@ enum tps65912_regulators { DCDC1, DCDC2, DCDC3, DCDC4, LDO1, LDO2, LDO3, .n_linear_ranges = ARRAY_SIZE(_lr), \ } -static const struct regulator_linear_range tps65912_dcdc_ranges[] = { +static const struct linear_range tps65912_dcdc_ranges[] = { REGULATOR_LINEAR_RANGE(500000, 0x0, 0x3f, 50000), }; -static const struct regulator_linear_range tps65912_ldo_ranges[] = { +static const struct linear_range tps65912_ldo_ranges[] = { REGULATOR_LINEAR_RANGE(800000, 0x0, 0x20, 25000), REGULATOR_LINEAR_RANGE(1650000, 0x21, 0x3c, 50000), REGULATOR_LINEAR_RANGE(3100000, 0x3d, 0x3f, 100000), diff --git a/drivers/regulator/tps80031-regulator.c b/drivers/regulator/tps80031-regulator.c index 85a6a8ca8c1b..a29e65230132 100644 --- a/drivers/regulator/tps80031-regulator.c +++ b/drivers/regulator/tps80031-regulator.c @@ -271,7 +271,7 @@ static int tps80031_vbus_is_enabled(struct regulator_dev *rdev) { struct tps80031_regulator *ri = rdev_get_drvdata(rdev); struct device *parent = to_tps80031_dev(rdev); - int ret = -EIO; + int ret; uint8_t ctrl1 = 0; uint8_t ctrl3 = 0; @@ -322,7 +322,7 @@ static int tps80031_vbus_disable(struct regulator_dev *rdev) { struct tps80031_regulator *ri = rdev_get_drvdata(rdev); struct device *parent = to_tps80031_dev(rdev); - int ret = 0; + int ret; if (ri->config_flags & TPS80031_VBUS_DISCHRG_EN_PDN) { ret = tps80031_write(parent, TPS80031_SLAVE_ID2, @@ -530,7 +530,8 @@ static int tps80031_regulator_config(struct device *parent, case TPS80031_REGULATOR_LDOUSB: if (ri->config_flags & (TPS80031_USBLDO_INPUT_VSYS | TPS80031_USBLDO_INPUT_PMID)) { - unsigned val = 0; + unsigned val; + if (ri->config_flags & TPS80031_USBLDO_INPUT_VSYS) val = MISC2_LDOUSB_IN_VSYS; else diff --git a/drivers/regulator/twl-regulator.c b/drivers/regulator/twl-regulator.c index 866b4dd01da9..4a51cfea45ac 100644 --- a/drivers/regulator/twl-regulator.c +++ b/drivers/regulator/twl-regulator.c @@ -360,12 +360,12 @@ static const u16 VINTANA2_VSEL_table[] = { }; /* 600mV to 1450mV in 12.5 mV steps */ -static const struct regulator_linear_range VDD1_ranges[] = { +static const struct linear_range VDD1_ranges[] = { REGULATOR_LINEAR_RANGE(600000, 0, 68, 12500) }; /* 600mV to 1450mV in 12.5 mV steps, everything above = 1500mV */ -static const struct regulator_linear_range VDD2_ranges[] = { +static const struct linear_range VDD2_ranges[] = { REGULATOR_LINEAR_RANGE(600000, 0, 68, 12500), REGULATOR_LINEAR_RANGE(1500000, 69, 69, 12500) }; diff --git a/drivers/regulator/twl6030-regulator.c b/drivers/regulator/twl6030-regulator.c index b8100c3cedad..f7db250a7583 100644 --- a/drivers/regulator/twl6030-regulator.c +++ b/drivers/regulator/twl6030-regulator.c @@ -495,7 +495,7 @@ static const struct regulator_ops twlsmps_ops = { }; /*----------------------------------------------------------------------*/ -static const struct regulator_linear_range twl6030ldo_linear_range[] = { +static const struct linear_range twl6030ldo_linear_range[] = { REGULATOR_LINEAR_RANGE(0, 0, 0, 0), REGULATOR_LINEAR_RANGE(1000000, 1, 24, 100000), REGULATOR_LINEAR_RANGE(2750000, 31, 31, 0), diff --git a/drivers/regulator/wm831x-dcdc.c b/drivers/regulator/wm831x-dcdc.c index 018dbbd96771..ad2203d11a88 100644 --- a/drivers/regulator/wm831x-dcdc.c +++ b/drivers/regulator/wm831x-dcdc.c @@ -204,7 +204,7 @@ static irqreturn_t wm831x_dcdc_oc_irq(int irq, void *data) * BUCKV specifics */ -static const struct regulator_linear_range wm831x_buckv_ranges[] = { +static const struct linear_range wm831x_buckv_ranges[] = { REGULATOR_LINEAR_RANGE(600000, 0, 0x7, 0), REGULATOR_LINEAR_RANGE(600000, 0x8, 0x68, 12500), }; diff --git a/drivers/regulator/wm831x-ldo.c b/drivers/regulator/wm831x-ldo.c index 56754686c982..7b6cf4810cb7 100644 --- a/drivers/regulator/wm831x-ldo.c +++ b/drivers/regulator/wm831x-ldo.c @@ -59,7 +59,7 @@ static irqreturn_t wm831x_ldo_uv_irq(int irq, void *data) * General purpose LDOs */ -static const struct regulator_linear_range wm831x_gp_ldo_ranges[] = { +static const struct linear_range wm831x_gp_ldo_ranges[] = { REGULATOR_LINEAR_RANGE(900000, 0, 14, 50000), REGULATOR_LINEAR_RANGE(1700000, 15, 31, 100000), }; @@ -312,7 +312,7 @@ static struct platform_driver wm831x_gp_ldo_driver = { * Analogue LDOs */ -static const struct regulator_linear_range wm831x_aldo_ranges[] = { +static const struct linear_range wm831x_aldo_ranges[] = { REGULATOR_LINEAR_RANGE(1000000, 0, 12, 50000), REGULATOR_LINEAR_RANGE(1700000, 13, 31, 100000), }; diff --git a/drivers/regulator/wm8350-regulator.c b/drivers/regulator/wm8350-regulator.c index 56d6168a888d..ae5f0e7fce8b 100644 --- a/drivers/regulator/wm8350-regulator.c +++ b/drivers/regulator/wm8350-regulator.c @@ -470,7 +470,7 @@ static int wm8350_dcdc_set_suspend_mode(struct regulator_dev *rdev, return 0; } -static const struct regulator_linear_range wm8350_ldo_ranges[] = { +static const struct linear_range wm8350_ldo_ranges[] = { REGULATOR_LINEAR_RANGE(900000, 0, 15, 50000), REGULATOR_LINEAR_RANGE(1800000, 16, 31, 100000), }; diff --git a/drivers/regulator/wm8400-regulator.c b/drivers/regulator/wm8400-regulator.c index 6f331b51e479..4cb1fbb59722 100644 --- a/drivers/regulator/wm8400-regulator.c +++ b/drivers/regulator/wm8400-regulator.c @@ -13,7 +13,7 @@ #include <linux/regulator/driver.h> #include <linux/mfd/wm8400-private.h> -static const struct regulator_linear_range wm8400_ldo_ranges[] = { +static const struct linear_range wm8400_ldo_ranges[] = { REGULATOR_LINEAR_RANGE(900000, 0, 14, 50000), REGULATOR_LINEAR_RANGE(1700000, 15, 31, 100000), }; diff --git a/include/linux/linear_range.h b/include/linux/linear_range.h new file mode 100644 index 000000000000..17b5943727d5 --- /dev/null +++ b/include/linux/linear_range.h @@ -0,0 +1,48 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +/* Copyright (C) 2020 ROHM Semiconductors */ + +#ifndef LINEAR_RANGE_H +#define LINEAR_RANGE_H + +#include <linux/types.h> + +/** + * struct linear_range - table of selector - value pairs + * + * Define a lookup-table for range of values. Intended to help when looking + * for a register value matching certaing physical measure (like voltage). + * Usable when increment of one in register always results a constant increment + * of the physical measure (like voltage). + * + * @min: Lowest value in range + * @min_sel: Lowest selector for range + * @max_sel: Highest selector for range + * @step: Value step size + */ +struct linear_range { + unsigned int min; + unsigned int min_sel; + unsigned int max_sel; + unsigned int step; +}; + +unsigned int linear_range_values_in_range(const struct linear_range *r); +unsigned int linear_range_values_in_range_array(const struct linear_range *r, + int ranges); +unsigned int linear_range_get_max_value(const struct linear_range *r); + +int linear_range_get_value(const struct linear_range *r, unsigned int selector, + unsigned int *val); +int linear_range_get_value_array(const struct linear_range *r, int ranges, + unsigned int selector, unsigned int *val); +int linear_range_get_selector_low(const struct linear_range *r, + unsigned int val, unsigned int *selector, + bool *found); +int linear_range_get_selector_high(const struct linear_range *r, + unsigned int val, unsigned int *selector, + bool *found); +int linear_range_get_selector_low_array(const struct linear_range *r, + int ranges, unsigned int val, + unsigned int *selector, bool *found); + +#endif diff --git a/include/linux/mfd/max8998.h b/include/linux/mfd/max8998.h index 061af220dcd3..79c020bd0c70 100644 --- a/include/linux/mfd/max8998.h +++ b/include/linux/mfd/max8998.h @@ -39,6 +39,7 @@ enum { MAX8998_ENVICHG, MAX8998_ESAFEOUT1, MAX8998_ESAFEOUT2, + MAX8998_CHARGER, }; /** diff --git a/include/linux/regulator/coupler.h b/include/linux/regulator/coupler.h index 0212d6255e4e..5f86824bd117 100644 --- a/include/linux/regulator/coupler.h +++ b/include/linux/regulator/coupler.h @@ -62,6 +62,8 @@ int regulator_get_voltage_rdev(struct regulator_dev *rdev); int regulator_set_voltage_rdev(struct regulator_dev *rdev, int min_uV, int max_uV, suspend_state_t state); +int regulator_do_balance_voltage(struct regulator_dev *rdev, + suspend_state_t state, bool skip_coupled); #else static inline int regulator_coupler_register(struct regulator_coupler *coupler) { @@ -92,6 +94,12 @@ static inline int regulator_set_voltage_rdev(struct regulator_dev *rdev, { return -EINVAL; } +static inline int regulator_do_balance_voltage(struct regulator_dev *rdev, + suspend_state_t state, + bool skip_coupled) +{ + return -EINVAL; +} #endif #endif diff --git a/include/linux/regulator/driver.h b/include/linux/regulator/driver.h index 29d920516e0b..7eb9fea8e482 100644 --- a/include/linux/regulator/driver.h +++ b/include/linux/regulator/driver.h @@ -13,6 +13,7 @@ #define __LINUX_REGULATOR_DRIVER_H_ #include <linux/device.h> +#include <linux/linear_range.h> #include <linux/notifier.h> #include <linux/regulator/consumer.h> #include <linux/ww_mutex.h> @@ -39,31 +40,13 @@ enum regulator_status { REGULATOR_STATUS_UNDEFINED, }; -/** - * struct regulator_linear_range - specify linear voltage ranges - * - * Specify a range of voltages for regulator_map_linear_range() and - * regulator_list_linear_range(). - * - * @min_uV: Lowest voltage in range - * @min_sel: Lowest selector for range - * @max_sel: Highest selector for range - * @uV_step: Step size - */ -struct regulator_linear_range { - unsigned int min_uV; - unsigned int min_sel; - unsigned int max_sel; - unsigned int uV_step; -}; - -/* Initialize struct regulator_linear_range */ +/* Initialize struct linear_range for regulators */ #define REGULATOR_LINEAR_RANGE(_min_uV, _min_sel, _max_sel, _step_uV) \ { \ - .min_uV = _min_uV, \ + .min = _min_uV, \ .min_sel = _min_sel, \ .max_sel = _max_sel, \ - .uV_step = _step_uV, \ + .step = _step_uV, \ } /** @@ -348,7 +331,7 @@ struct regulator_desc { unsigned int ramp_delay; int min_dropout_uV; - const struct regulator_linear_range *linear_ranges; + const struct linear_range *linear_ranges; const unsigned int *linear_range_selectors; int n_linear_ranges; diff --git a/include/trace/events/regulator.h b/include/trace/events/regulator.h index b70583c32c08..72b3ba93b0a5 100644 --- a/include/trace/events/regulator.h +++ b/include/trace/events/regulator.h @@ -70,6 +70,38 @@ DEFINE_EVENT(regulator_basic, regulator_disable_complete, ); +DEFINE_EVENT(regulator_basic, regulator_bypass_enable, + + TP_PROTO(const char *name), + + TP_ARGS(name) + +); + +DEFINE_EVENT(regulator_basic, regulator_bypass_enable_complete, + + TP_PROTO(const char *name), + + TP_ARGS(name) + +); + +DEFINE_EVENT(regulator_basic, regulator_bypass_disable, + + TP_PROTO(const char *name), + + TP_ARGS(name) + +); + +DEFINE_EVENT(regulator_basic, regulator_bypass_disable_complete, + + TP_PROTO(const char *name), + + TP_ARGS(name) + +); + /* * Events that take a range of numerical values, mostly for voltages * and so on. diff --git a/lib/Kconfig b/lib/Kconfig index 5d53f9609c25..8ec05335426c 100644 --- a/lib/Kconfig +++ b/lib/Kconfig @@ -19,6 +19,9 @@ config RAID6_PQ_BENCHMARK Benchmark all available RAID6 PQ functions on init and choose the fastest one. +config LINEAR_RANGES + tristate + config PACKING bool "Generic bitfield packing and unpacking" default n diff --git a/lib/Kconfig.debug b/lib/Kconfig.debug index 21d9c5f6e7ec..f3322a620674 100644 --- a/lib/Kconfig.debug +++ b/lib/Kconfig.debug @@ -2092,6 +2092,18 @@ config LIST_KUNIT_TEST If unsure, say N. +config LINEAR_RANGES_TEST + tristate "KUnit test for linear_ranges" + depends on KUNIT + select LINEAR_RANGES + help + This builds the linear_ranges unit test, which runs on boot. + Tests the linear_ranges logic correctness. + For more information on KUnit and unit tests in general please refer + to the KUnit documentation in Documentation/dev-tools/kunit/. + + If unsure, say N. + config TEST_UDELAY tristate "udelay test driver" help diff --git a/lib/Makefile b/lib/Makefile index 685aee60de1d..cd548bfa8df9 100644 --- a/lib/Makefile +++ b/lib/Makefile @@ -125,6 +125,7 @@ obj-$(CONFIG_DEBUG_LIST) += list_debug.o obj-$(CONFIG_DEBUG_OBJECTS) += debugobjects.o obj-$(CONFIG_BITREVERSE) += bitrev.o +obj-$(CONFIG_LINEAR_RANGES) += linear_ranges.o obj-$(CONFIG_PACKING) += packing.o obj-$(CONFIG_CRC_CCITT) += crc-ccitt.o obj-$(CONFIG_CRC16) += crc16.o @@ -309,3 +310,4 @@ obj-$(CONFIG_OBJAGG) += objagg.o # KUnit tests obj-$(CONFIG_LIST_KUNIT_TEST) += list-test.o +obj-$(CONFIG_LINEAR_RANGES_TEST) += test_linear_ranges.o diff --git a/lib/linear_ranges.c b/lib/linear_ranges.c new file mode 100644 index 000000000000..9495ef3572b7 --- /dev/null +++ b/lib/linear_ranges.c @@ -0,0 +1,245 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * helpers to map values in a linear range to range index + * + * Original idea borrowed from regulator framework + * + * It might be useful if we could support also inversely proportional ranges? + * Copyright 2020 ROHM Semiconductors + */ + +#include <linux/errno.h> +#include <linux/export.h> +#include <linux/kernel.h> +#include <linux/linear_range.h> +#include <linux/module.h> + +/** + * linear_range_values_in_range - return the amount of values in a range + * @r: pointer to linear range where values are counted + * + * Compute the amount of values in range pointed by @r. Note, values can + * be all equal - range with selectors 0,...,2 with step 0 still contains + * 3 values even though they are all equal. + * + * Return: the amount of values in range pointed by @r + */ +unsigned int linear_range_values_in_range(const struct linear_range *r) +{ + if (!r) + return 0; + return r->max_sel - r->min_sel + 1; +} +EXPORT_SYMBOL_GPL(linear_range_values_in_range); + +/** + * linear_range_values_in_range_array - return the amount of values in ranges + * @r: pointer to array of linear ranges where values are counted + * @ranges: amount of ranges we include in computation. + * + * Compute the amount of values in ranges pointed by @r. Note, values can + * be all equal - range with selectors 0,...,2 with step 0 still contains + * 3 values even though they are all equal. + * + * Return: the amount of values in first @ranges ranges pointed by @r + */ +unsigned int linear_range_values_in_range_array(const struct linear_range *r, + int ranges) +{ + int i, values_in_range = 0; + + for (i = 0; i < ranges; i++) { + int values; + + values = linear_range_values_in_range(&r[i]); + if (!values) + return values; + + values_in_range += values; + } + return values_in_range; +} +EXPORT_SYMBOL_GPL(linear_range_values_in_range_array); + +/** + * linear_range_get_max_value - return the largest value in a range + * @r: pointer to linear range where value is looked from + * + * Return: the largest value in the given range + */ +unsigned int linear_range_get_max_value(const struct linear_range *r) +{ + return r->min + (r->max_sel - r->min_sel) * r->step; +} +EXPORT_SYMBOL_GPL(linear_range_get_max_value); + +/** + * linear_range_get_value - fetch a value from given range + * @r: pointer to linear range where value is looked from + * @selector: selector for which the value is searched + * @val: address where found value is updated + * + * Search given ranges for value which matches given selector. + * + * Return: 0 on success, -EINVAL given selector is not found from any of the + * ranges. + */ +int linear_range_get_value(const struct linear_range *r, unsigned int selector, + unsigned int *val) +{ + if (r->min_sel > selector || r->max_sel < selector) + return -EINVAL; + + *val = r->min + (selector - r->min_sel) * r->step; + + return 0; +} +EXPORT_SYMBOL_GPL(linear_range_get_value); + +/** + * linear_range_get_value_array - fetch a value from array of ranges + * @r: pointer to array of linear ranges where value is looked from + * @ranges: amount of ranges in an array + * @selector: selector for which the value is searched + * @val: address where found value is updated + * + * Search through an array of ranges for value which matches given selector. + * + * Return: 0 on success, -EINVAL given selector is not found from any of the + * ranges. + */ +int linear_range_get_value_array(const struct linear_range *r, int ranges, + unsigned int selector, unsigned int *val) +{ + int i; + + for (i = 0; i < ranges; i++) + if (r[i].min_sel <= selector && r[i].max_sel >= selector) + return linear_range_get_value(&r[i], selector, val); + + return -EINVAL; +} +EXPORT_SYMBOL_GPL(linear_range_get_value_array); + +/** + * linear_range_get_selector_low - return linear range selector for value + * @r: pointer to linear range where selector is looked from + * @val: value for which the selector is searched + * @selector: address where found selector value is updated + * @found: flag to indicate that given value was in the range + * + * Return selector which which range value is closest match for given + * input value. Value is matching if it is equal or smaller than given + * value. If given value is in the range, then @found is set true. + * + * Return: 0 on success, -EINVAL if range is invalid or does not contain + * value smaller or equal to given value + */ +int linear_range_get_selector_low(const struct linear_range *r, + unsigned int val, unsigned int *selector, + bool *found) +{ + *found = false; + + if (r->min > val) + return -EINVAL; + + if (linear_range_get_max_value(r) < val) { + *selector = r->max_sel; + return 0; + } + + *found = true; + + if (r->step == 0) + *selector = r->min_sel; + else + *selector = (val - r->min) / r->step + r->min_sel; + + return 0; +} +EXPORT_SYMBOL_GPL(linear_range_get_selector_low); + +/** + * linear_range_get_selector_low_array - return linear range selector for value + * @r: pointer to array of linear ranges where selector is looked from + * @ranges: amount of ranges to scan from array + * @val: value for which the selector is searched + * @selector: address where found selector value is updated + * @found: flag to indicate that given value was in the range + * + * Scan array of ranges for selector which which range value matches given + * input value. Value is matching if it is equal or smaller than given + * value. If given value is found to be in a range scanning is stopped and + * @found is set true. If a range with values smaller than given value is found + * but the range max is being smaller than given value, then the ranges + * biggest selector is updated to @selector but scanning ranges is continued + * and @found is set to false. + * + * Return: 0 on success, -EINVAL if range array is invalid or does not contain + * range with a value smaller or equal to given value + */ +int linear_range_get_selector_low_array(const struct linear_range *r, + int ranges, unsigned int val, + unsigned int *selector, bool *found) +{ + int i; + int ret = -EINVAL; + + for (i = 0; i < ranges; i++) { + int tmpret; + + tmpret = linear_range_get_selector_low(&r[i], val, selector, + found); + if (!tmpret) + ret = 0; + + if (*found) + break; + } + + return ret; +} +EXPORT_SYMBOL_GPL(linear_range_get_selector_low_array); + +/** + * linear_range_get_selector_high - return linear range selector for value + * @r: pointer to linear range where selector is looked from + * @val: value for which the selector is searched + * @selector: address where found selector value is updated + * @found: flag to indicate that given value was in the range + * + * Return selector which which range value is closest match for given + * input value. Value is matching if it is equal or higher than given + * value. If given value is in the range, then @found is set true. + * + * Return: 0 on success, -EINVAL if range is invalid or does not contain + * value greater or equal to given value + */ +int linear_range_get_selector_high(const struct linear_range *r, + unsigned int val, unsigned int *selector, + bool *found) +{ + *found = false; + + if (linear_range_get_max_value(r) < val) + return -EINVAL; + + if (r->min > val) { + *selector = r->min_sel; + return 0; + } + + *found = true; + + if (r->step == 0) + *selector = r->max_sel; + else + *selector = DIV_ROUND_UP(val - r->min, r->step) + r->min_sel; + + return 0; +} +EXPORT_SYMBOL_GPL(linear_range_get_selector_high); + +MODULE_DESCRIPTION("linear-ranges helper"); +MODULE_LICENSE("GPL"); diff --git a/lib/test_linear_ranges.c b/lib/test_linear_ranges.c new file mode 100644 index 000000000000..676e0b8abcdd --- /dev/null +++ b/lib/test_linear_ranges.c @@ -0,0 +1,228 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * KUnit test for the linear_ranges helper. + * + * Copyright (C) 2020, ROHM Semiconductors. + * Author: Matti Vaittinen <matti.vaittien@fi.rohmeurope.com> + */ +#include <kunit/test.h> + +#include <linux/linear_range.h> + +/* First things first. I deeply dislike unit-tests. I have seen all the hell + * breaking loose when people who think the unit tests are "the silver bullet" + * to kill bugs get to decide how a company should implement testing strategy... + * + * Believe me, it may get _really_ ridiculous. It is tempting to think that + * walking through all the possible execution branches will nail down 100% of + * bugs. This may lead to ideas about demands to get certain % of "test + * coverage" - measured as line coverage. And that is one of the worst things + * you can do. + * + * Ask people to provide line coverage and they do. I've seen clever tools + * which generate test cases to test the existing functions - and by default + * these tools expect code to be correct and just generate checks which are + * passing when ran against current code-base. Run this generator and you'll get + * tests that do not test code is correct but just verify nothing changes. + * Problem is that testing working code is pointless. And if it is not + * working, your test must not assume it is working. You won't catch any bugs + * by such tests. What you can do is to generate a huge amount of tests. + * Especially if you were are asked to proivde 100% line-coverage x_x. So what + * does these tests - which are not finding any bugs now - do? + * + * They add inertia to every future development. I think it was Terry Pratchet + * who wrote someone having same impact as thick syrup has to chronometre. + * Excessive amount of unit-tests have this effect to development. If you do + * actually find _any_ bug from code in such environment and try fixing it... + * ...chances are you also need to fix the test cases. In sunny day you fix one + * test. But I've done refactoring which resulted 500+ broken tests (which had + * really zero value other than proving to managers that we do do "quality")... + * + * After this being said - there are situations where UTs can be handy. If you + * have algorithms which take some input and should produce output - then you + * can implement few, carefully selected simple UT-cases which test this. I've + * previously used this for example for netlink and device-tree data parsing + * functions. Feed some data examples to functions and verify the output is as + * expected. I am not covering all the cases but I will see the logic should be + * working. + * + * Here we also do some minor testing. I don't want to go through all branches + * or test more or less obvious things - but I want to see the main logic is + * working. And I definitely don't want to add 500+ test cases that break when + * some simple fix is done x_x. So - let's only add few, well selected tests + * which ensure as much logic is good as possible. + */ + +/* + * Test Range 1: + * selectors: 2 3 4 5 6 + * values (5): 10 20 30 40 50 + * + * Test Range 2: + * selectors: 7 8 9 10 + * values (4): 100 150 200 250 + */ + +#define RANGE1_MIN 10 +#define RANGE1_MIN_SEL 2 +#define RANGE1_STEP 10 + +/* 2, 3, 4, 5, 6 */ +static const unsigned int range1_sels[] = { RANGE1_MIN_SEL, RANGE1_MIN_SEL + 1, + RANGE1_MIN_SEL + 2, + RANGE1_MIN_SEL + 3, + RANGE1_MIN_SEL + 4 }; +/* 10, 20, 30, 40, 50 */ +static const unsigned int range1_vals[] = { RANGE1_MIN, RANGE1_MIN + + RANGE1_STEP, + RANGE1_MIN + RANGE1_STEP * 2, + RANGE1_MIN + RANGE1_STEP * 3, + RANGE1_MIN + RANGE1_STEP * 4 }; + +#define RANGE2_MIN 100 +#define RANGE2_MIN_SEL 7 +#define RANGE2_STEP 50 + +/* 7, 8, 9, 10 */ +static const unsigned int range2_sels[] = { RANGE2_MIN_SEL, RANGE2_MIN_SEL + 1, + RANGE2_MIN_SEL + 2, + RANGE2_MIN_SEL + 3 }; +/* 100, 150, 200, 250 */ +static const unsigned int range2_vals[] = { RANGE2_MIN, RANGE2_MIN + + RANGE2_STEP, + RANGE2_MIN + RANGE2_STEP * 2, + RANGE2_MIN + RANGE2_STEP * 3 }; + +#define RANGE1_NUM_VALS (ARRAY_SIZE(range1_vals)) +#define RANGE2_NUM_VALS (ARRAY_SIZE(range2_vals)) +#define RANGE_NUM_VALS (RANGE1_NUM_VALS + RANGE2_NUM_VALS) + +#define RANGE1_MAX_SEL (RANGE1_MIN_SEL + RANGE1_NUM_VALS - 1) +#define RANGE1_MAX_VAL (range1_vals[RANGE1_NUM_VALS - 1]) + +#define RANGE2_MAX_SEL (RANGE2_MIN_SEL + RANGE2_NUM_VALS - 1) +#define RANGE2_MAX_VAL (range2_vals[RANGE2_NUM_VALS - 1]) + +#define SMALLEST_SEL RANGE1_MIN_SEL +#define SMALLEST_VAL RANGE1_MIN + +static struct linear_range testr[] = { + { + .min = RANGE1_MIN, + .min_sel = RANGE1_MIN_SEL, + .max_sel = RANGE1_MAX_SEL, + .step = RANGE1_STEP, + }, { + .min = RANGE2_MIN, + .min_sel = RANGE2_MIN_SEL, + .max_sel = RANGE2_MAX_SEL, + .step = RANGE2_STEP + }, +}; + +static void range_test_get_value(struct kunit *test) +{ + int ret, i; + unsigned int sel, val; + + for (i = 0; i < RANGE1_NUM_VALS; i++) { + sel = range1_sels[i]; + ret = linear_range_get_value_array(&testr[0], 2, sel, &val); + KUNIT_EXPECT_EQ(test, 0, ret); + KUNIT_EXPECT_EQ(test, val, range1_vals[i]); + } + for (i = 0; i < RANGE2_NUM_VALS; i++) { + sel = range2_sels[i]; + ret = linear_range_get_value_array(&testr[0], 2, sel, &val); + KUNIT_EXPECT_EQ(test, 0, ret); + KUNIT_EXPECT_EQ(test, val, range2_vals[i]); + } + ret = linear_range_get_value_array(&testr[0], 2, sel + 1, &val); + KUNIT_EXPECT_NE(test, 0, ret); +} + +static void range_test_get_selector_high(struct kunit *test) +{ + int ret, i; + unsigned int sel; + bool found; + + for (i = 0; i < RANGE1_NUM_VALS; i++) { + ret = linear_range_get_selector_high(&testr[0], range1_vals[i], + &sel, &found); + KUNIT_EXPECT_EQ(test, 0, ret); + KUNIT_EXPECT_EQ(test, sel, range1_sels[i]); + KUNIT_EXPECT_TRUE(test, found); + } + + ret = linear_range_get_selector_high(&testr[0], RANGE1_MAX_VAL + 1, + &sel, &found); + KUNIT_EXPECT_LE(test, ret, 0); + + ret = linear_range_get_selector_high(&testr[0], RANGE1_MIN - 1, + &sel, &found); + KUNIT_EXPECT_EQ(test, 0, ret); + KUNIT_EXPECT_FALSE(test, found); + KUNIT_EXPECT_EQ(test, sel, range1_sels[0]); +} + +static void range_test_get_value_amount(struct kunit *test) +{ + int ret; + + ret = linear_range_values_in_range_array(&testr[0], 2); + KUNIT_EXPECT_EQ(test, (int)RANGE_NUM_VALS, ret); +} + +static void range_test_get_selector_low(struct kunit *test) +{ + int i, ret; + unsigned int sel; + bool found; + + for (i = 0; i < RANGE1_NUM_VALS; i++) { + ret = linear_range_get_selector_low_array(&testr[0], 2, + range1_vals[i], &sel, + &found); + KUNIT_EXPECT_EQ(test, 0, ret); + KUNIT_EXPECT_EQ(test, sel, range1_sels[i]); + KUNIT_EXPECT_TRUE(test, found); + } + for (i = 0; i < RANGE2_NUM_VALS; i++) { + ret = linear_range_get_selector_low_array(&testr[0], 2, + range2_vals[i], &sel, + &found); + KUNIT_EXPECT_EQ(test, 0, ret); + KUNIT_EXPECT_EQ(test, sel, range2_sels[i]); + KUNIT_EXPECT_TRUE(test, found); + } + + /* + * Seek value greater than range max => get_selector_*_low should + * return Ok - but set found to false as value is not in range + */ + ret = linear_range_get_selector_low_array(&testr[0], 2, + range2_vals[RANGE2_NUM_VALS - 1] + 1, + &sel, &found); + + KUNIT_EXPECT_EQ(test, 0, ret); + KUNIT_EXPECT_EQ(test, sel, range2_sels[RANGE2_NUM_VALS - 1]); + KUNIT_EXPECT_FALSE(test, found); +} + +static struct kunit_case range_test_cases[] = { + KUNIT_CASE(range_test_get_value_amount), + KUNIT_CASE(range_test_get_selector_high), + KUNIT_CASE(range_test_get_selector_low), + KUNIT_CASE(range_test_get_value), + {}, +}; + +static struct kunit_suite range_test_module = { + .name = "linear-ranges-test", + .test_cases = range_test_cases, +}; + +kunit_test_suites(&range_test_module); + +MODULE_LICENSE("GPL"); |