drivers/dpll/zl3073x/i2c.c

Source file repositories/reference/linux-study-clean/drivers/dpll/zl3073x/i2c.c

File Facts

System
Linux kernel
Corpus path
drivers/dpll/zl3073x/i2c.c
Extension
.c
Size
1585 bytes
Lines
62
Domain
Driver Families
Bucket
drivers/dpll
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

// SPDX-License-Identifier: GPL-2.0-only

#include <linux/dev_printk.h>
#include <linux/err.h>
#include <linux/i2c.h>
#include <linux/module.h>
#include <linux/regmap.h>

#include "core.h"

static int zl3073x_i2c_probe(struct i2c_client *client)
{
	struct device *dev = &client->dev;
	struct zl3073x_dev *zldev;

	zldev = zl3073x_devm_alloc(dev);
	if (IS_ERR(zldev))
		return PTR_ERR(zldev);

	zldev->regmap = devm_regmap_init_i2c(client, &zl3073x_regmap_config);
	if (IS_ERR(zldev->regmap))
		return dev_err_probe(dev, PTR_ERR(zldev->regmap),
				     "Failed to initialize regmap\n");

	return zl3073x_dev_probe(zldev);
}

static const struct i2c_device_id zl3073x_i2c_id[] = {
	{ .name = "zl30731" },
	{ .name = "zl30732" },
	{ .name = "zl30733" },
	{ .name = "zl30734" },
	{ .name = "zl30735" },
	{ /* sentinel */ }
};
MODULE_DEVICE_TABLE(i2c, zl3073x_i2c_id);

static const struct of_device_id zl3073x_i2c_of_match[] = {
	{ .compatible = "microchip,zl30731" },
	{ .compatible = "microchip,zl30732" },
	{ .compatible = "microchip,zl30733" },
	{ .compatible = "microchip,zl30734" },
	{ .compatible = "microchip,zl30735" },
	{ /* sentinel */ }
};
MODULE_DEVICE_TABLE(of, zl3073x_i2c_of_match);

static struct i2c_driver zl3073x_i2c_driver = {
	.driver = {
		.name = "zl3073x-i2c",
		.of_match_table = zl3073x_i2c_of_match,
	},
	.probe = zl3073x_i2c_probe,
	.id_table = zl3073x_i2c_id,
};
module_i2c_driver(zl3073x_i2c_driver);

MODULE_AUTHOR("Ivan Vecera <ivecera@redhat.com>");
MODULE_DESCRIPTION("Microchip ZL3073x I2C driver");
MODULE_IMPORT_NS("ZL3073X");
MODULE_LICENSE("GPL");

Annotation

Implementation Notes