drivers/regulator/pbias-regulator.c

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

File Facts

System
Linux kernel
Corpus path
drivers/regulator/pbias-regulator.c
Extension
.c
Size
6503 bytes
Lines
244
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 pbias_reg_info {
	u32 enable;
	u32 enable_mask;
	u32 disable_val;
	u32 vmode;
	unsigned int enable_time;
	char *name;
	const unsigned int *pbias_volt_table;
	int n_voltages;
};

struct pbias_of_data {
	unsigned int offset;
};

static const unsigned int pbias_volt_table_3_0V[] = {
	1800000,
	3000000
};

static const unsigned int pbias_volt_table_3_3V[] = {
	1800000,
	3300000
};

static const struct regulator_ops pbias_regulator_voltage_ops = {
	.list_voltage = regulator_list_voltage_table,
	.get_voltage_sel = regulator_get_voltage_sel_regmap,
	.set_voltage_sel = regulator_set_voltage_sel_regmap,
	.enable = regulator_enable_regmap,
	.disable = regulator_disable_regmap,
	.is_enabled = regulator_is_enabled_regmap,
};

static const struct pbias_reg_info pbias_mmc_omap2430 = {
	.enable = BIT(1),
	.enable_mask = BIT(1),
	.vmode = BIT(0),
	.disable_val = 0,
	.enable_time = 100,
	.pbias_volt_table = pbias_volt_table_3_0V,
	.n_voltages = 2,
	.name = "pbias_mmc_omap2430"
};

static const struct pbias_reg_info pbias_sim_omap3 = {
	.enable = BIT(9),
	.enable_mask = BIT(9),
	.vmode = BIT(8),
	.enable_time = 100,
	.pbias_volt_table = pbias_volt_table_3_0V,
	.n_voltages = 2,
	.name = "pbias_sim_omap3"
};

static const struct pbias_reg_info pbias_mmc_omap4 = {
	.enable = BIT(26) | BIT(22),
	.enable_mask = BIT(26) | BIT(25) | BIT(22),
	.disable_val = BIT(25),
	.vmode = BIT(21),
	.enable_time = 100,
	.pbias_volt_table = pbias_volt_table_3_0V,
	.n_voltages = 2,
	.name = "pbias_mmc_omap4"
};

static const struct pbias_reg_info pbias_mmc_omap5 = {
	.enable = BIT(27) | BIT(26),
	.enable_mask = BIT(27) | BIT(25) | BIT(26),
	.disable_val = BIT(25),
	.vmode = BIT(21),
	.enable_time = 100,
	.pbias_volt_table = pbias_volt_table_3_3V,
	.n_voltages = 2,
	.name = "pbias_mmc_omap5"
};

static struct of_regulator_match pbias_matches[] = {
	{ .name = "pbias_mmc_omap2430", .driver_data = (void *)&pbias_mmc_omap2430},
	{ .name = "pbias_sim_omap3", .driver_data = (void *)&pbias_sim_omap3},
	{ .name = "pbias_mmc_omap4", .driver_data = (void *)&pbias_mmc_omap4},
	{ .name = "pbias_mmc_omap5", .driver_data = (void *)&pbias_mmc_omap5},
};
#define PBIAS_NUM_REGS	ARRAY_SIZE(pbias_matches)

/* Offset from SCM general area (and syscon) base */

static const struct pbias_of_data pbias_of_data_omap2 = {
	.offset = 0x230,
};

Annotation

Implementation Notes