drivers/regulator/max77857-regulator.c

Source file repositories/reference/linux-study-clean/drivers/regulator/max77857-regulator.c

File Facts

System
Linux kernel
Corpus path
drivers/regulator/max77857-regulator.c
Extension
.c
Size
11805 bytes
Lines
462
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

switch (id) {
		case ID_MAX77831:
		case ID_MAX77857:
			ret = regmap_update_bits(regmap, MAX77857_REG_CONT1,
						 MAX77857_CONT1_FREQ, switch_freq);

			if (switch_freq >= 2)
				break;

			max77857_regulator_desc.ramp_delay_table = max77857_ramp_table[1];
			max77857_regulator_desc.ramp_delay = max77857_ramp_table[1][0];
			break;
		case ID_MAX77859:
		case ID_MAX77859A:
			ret = regmap_update_bits(regmap, MAX77859_REG_CONT1,
						 MAX77857_CONT1_FREQ, switch_freq);
			break;
		}
		if (ret)
			return ret;
	}

	cfg.dev = dev;
	cfg.driver_data = (void *)id;
	cfg.regmap = regmap;
	cfg.init_data = of_get_regulator_init_data(dev, dev->of_node,
						   &max77857_regulator_desc);
	if (!cfg.init_data)
		return -ENOMEM;

	rdev = devm_regulator_register(dev, &max77857_regulator_desc, &cfg);
	if (IS_ERR(rdev))
		return dev_err_probe(dev, PTR_ERR(rdev),
				     "cannot register regulator\n");

	return 0;
}

static const struct i2c_device_id max77857_id[] = {
	{ "max77831", ID_MAX77831 },
	{ "max77857", ID_MAX77857 },
	{ "max77859", ID_MAX77859 },
	{ "max77859a", ID_MAX77859A },
	{ }
};
MODULE_DEVICE_TABLE(i2c, max77857_id);

static const struct of_device_id max77857_of_id[] = {
	{ .compatible = "adi,max77831", .data = (void *)ID_MAX77831 },
	{ .compatible = "adi,max77857", .data = (void *)ID_MAX77857 },
	{ .compatible = "adi,max77859", .data = (void *)ID_MAX77859 },
	{ .compatible = "adi,max77859a", .data = (void *)ID_MAX77859A },
	{ }
};
MODULE_DEVICE_TABLE(of, max77857_of_id);

static struct i2c_driver max77857_driver = {
	.driver = {
		.name = "max77857",
		.of_match_table = max77857_of_id,
	},
	.id_table = max77857_id,
	.probe = max77857_probe,
};
module_i2c_driver(max77857_driver);

MODULE_DESCRIPTION("Analog Devices MAX77857 Buck-Boost Converter Driver");
MODULE_AUTHOR("Ibrahim Tilki <Ibrahim.Tilki@analog.com>");
MODULE_AUTHOR("Okan Sahin <Okan.Sahin@analog.com>");
MODULE_LICENSE("GPL");

Annotation

Implementation Notes