drivers/regulator/mt6380-regulator.c

Source file repositories/reference/linux-study-clean/drivers/regulator/mt6380-regulator.c

File Facts

System
Linux kernel
Corpus path
drivers/regulator/mt6380-regulator.c
Extension
.c
Size
11930 bytes
Lines
343
Domain
Driver Families
Bucket
drivers/regulator
Inferred role
Driver Families: implementation source
Status
source implementation candidate

Why This File Exists

Repeatable hardware-adapter layer. Deep compatibility for every driver is out of scope; this atlas records patterns, probe lifecycles, bus glue, IRQ/DMA usage, and links back to core abstractions.

Dependency Surface

Detected Declarations

Annotated Snippet

struct mt6380_regulator_info {
	struct regulator_desc desc;
	u32 vselon_reg;
	u32 modeset_reg;
	u32 modeset_mask;
};

#define MT6380_BUCK(match, vreg, min, max, step, volt_ranges, enreg,	\
		    vosel, vosel_mask, enbit, voselon, _modeset_reg,	\
		    _modeset_mask)					\
[MT6380_ID_##vreg] = {							\
	.desc = {							\
		.name = #vreg,						\
		.of_match = of_match_ptr(match),			\
		.ops = &mt6380_volt_range_ops,				\
		.type = REGULATOR_VOLTAGE,				\
		.id = MT6380_ID_##vreg,					\
		.owner = THIS_MODULE,					\
		.n_voltages = ((max) - (min)) / (step) + 1,		\
		.linear_ranges = volt_ranges,				\
		.n_linear_ranges = ARRAY_SIZE(volt_ranges),		\
		.vsel_reg = vosel,					\
		.vsel_mask = vosel_mask,				\
		.enable_reg = enreg,					\
		.enable_mask = BIT(enbit),				\
	},								\
	.vselon_reg = voselon,						\
	.modeset_reg = _modeset_reg,					\
	.modeset_mask = _modeset_mask,					\
}

#define MT6380_LDO(match, vreg, ldo_volt_table, enreg, enbit, vosel,	\
		   vosel_mask, _modeset_reg, _modeset_mask)		\
[MT6380_ID_##vreg] = {							\
	.desc = {							\
		.name = #vreg,						\
		.of_match = of_match_ptr(match),			\
		.ops = &mt6380_volt_table_ops,				\
		.type = REGULATOR_VOLTAGE,				\
		.id = MT6380_ID_##vreg,					\
		.owner = THIS_MODULE,					\
		.n_voltages = ARRAY_SIZE(ldo_volt_table),		\
		.volt_table = ldo_volt_table,				\
		.vsel_reg = vosel,					\
		.vsel_mask = vosel_mask,				\
		.enable_reg = enreg,					\
		.enable_mask = BIT(enbit),				\
	},								\
	.modeset_reg = _modeset_reg,					\
	.modeset_mask = _modeset_mask,					\
}

#define MT6380_REG_FIXED(match, vreg, enreg, enbit, volt,		\
			 _modeset_reg, _modeset_mask)			\
[MT6380_ID_##vreg] = {							\
	.desc = {							\
		.name = #vreg,						\
		.of_match = of_match_ptr(match),			\
		.ops = &mt6380_volt_fixed_ops,				\
		.type = REGULATOR_VOLTAGE,				\
		.id = MT6380_ID_##vreg,					\
		.owner = THIS_MODULE,					\
		.n_voltages = 1,					\
		.enable_reg = enreg,					\
		.enable_mask = BIT(enbit),				\
		.min_uV = volt,						\
	},								\
	.modeset_reg = _modeset_reg,					\
	.modeset_mask = _modeset_mask,					\
}

static const struct linear_range buck_volt_range1[] = {
	REGULATOR_LINEAR_RANGE(600000, 0, 0xfe, 6250),
};

static const struct linear_range buck_volt_range2[] = {
	REGULATOR_LINEAR_RANGE(600000, 0, 0xfe, 6250),
};

static const struct linear_range buck_volt_range3[] = {
	REGULATOR_LINEAR_RANGE(1200000, 0, 0x3c, 25000),
};

static const unsigned int ldo_volt_table1[] = {
	1400000, 1350000, 1300000, 1250000, 1200000, 1150000, 1100000, 1050000,
};

static const unsigned int ldo_volt_table2[] = {
	2200000, 3300000,
};

Annotation

Implementation Notes