mirror of
git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
synced 2025-09-04 20:19:47 +08:00
b9f99efcc5
The function i2c_match_id() is used to fetch the matching ID from the i2c_device_id table. This is often used to then retrieve the matching driver_data. This can be done in one step with the helper i2c_get_match_data(). This helper has a couple other benefits: * It doesn't need the i2c_device_id passed in so we do not need to have that forward declared, allowing us to remove those or move the i2c_device_id table down to its more natural spot with the other module info. * It also checks for device match data, which allows for OF and ACPI based probing. That means we do not have to manually check those first and can remove those checks. Signed-off-by: Andrew Davis <afd@ti.com> Link: https://patch.msgid.link/20241203200001.197295-10-afd@ti.com Signed-off-by: Mark Brown <broonie@kernel.org>
61 lines
1.6 KiB
C
61 lines
1.6 KiB
C
// SPDX-License-Identifier: GPL-2.0
|
|
/*
|
|
* Texas Instruments PCM186x Universal Audio ADC - I2C
|
|
*
|
|
* Copyright (C) 2015-2017 Texas Instruments Incorporated - https://www.ti.com
|
|
* Andreas Dannenberg <dannenberg@ti.com>
|
|
* Andrew F. Davis <afd@ti.com>
|
|
*/
|
|
|
|
#include <linux/init.h>
|
|
#include <linux/module.h>
|
|
#include <linux/i2c.h>
|
|
|
|
#include "pcm186x.h"
|
|
|
|
static const struct of_device_id pcm186x_of_match[] = {
|
|
{ .compatible = "ti,pcm1862", .data = (void *)PCM1862 },
|
|
{ .compatible = "ti,pcm1863", .data = (void *)PCM1863 },
|
|
{ .compatible = "ti,pcm1864", .data = (void *)PCM1864 },
|
|
{ .compatible = "ti,pcm1865", .data = (void *)PCM1865 },
|
|
{ }
|
|
};
|
|
MODULE_DEVICE_TABLE(of, pcm186x_of_match);
|
|
|
|
static const struct i2c_device_id pcm186x_i2c_id[] = {
|
|
{ "pcm1862", PCM1862 },
|
|
{ "pcm1863", PCM1863 },
|
|
{ "pcm1864", PCM1864 },
|
|
{ "pcm1865", PCM1865 },
|
|
{ }
|
|
};
|
|
MODULE_DEVICE_TABLE(i2c, pcm186x_i2c_id);
|
|
|
|
static int pcm186x_i2c_probe(struct i2c_client *i2c)
|
|
{
|
|
const enum pcm186x_type type = (uintptr_t)i2c_get_match_data(i2c);
|
|
int irq = i2c->irq;
|
|
struct regmap *regmap;
|
|
|
|
regmap = devm_regmap_init_i2c(i2c, &pcm186x_regmap);
|
|
if (IS_ERR(regmap))
|
|
return PTR_ERR(regmap);
|
|
|
|
return pcm186x_probe(&i2c->dev, type, irq, regmap);
|
|
}
|
|
|
|
static struct i2c_driver pcm186x_i2c_driver = {
|
|
.probe = pcm186x_i2c_probe,
|
|
.id_table = pcm186x_i2c_id,
|
|
.driver = {
|
|
.name = "pcm186x",
|
|
.of_match_table = pcm186x_of_match,
|
|
},
|
|
};
|
|
module_i2c_driver(pcm186x_i2c_driver);
|
|
|
|
MODULE_AUTHOR("Andreas Dannenberg <dannenberg@ti.com>");
|
|
MODULE_AUTHOR("Andrew F. Davis <afd@ti.com>");
|
|
MODULE_DESCRIPTION("PCM186x Universal Audio ADC I2C Interface Driver");
|
|
MODULE_LICENSE("GPL v2");
|