linux-stable/sound/soc/codecs/cs4271-i2c.c
Alexander Sverdlin 2e9688c81c
ASoC: cs4271: flat regcache, trivial simplifications
- Switch to REGCACHE_FLAT, the whole overhead of RBTREE is not worth it
  with non sparse register set in the address range 1..7.
- Move register width to central location

Signed-off-by: Alexander Sverdlin <alexander.sverdlin@gmail.com>
Link: https://lore.kernel.org/r/20230410223902.2321834-3-alexander.sverdlin@gmail.com
Signed-off-by: Mark Brown <broonie@kernel.org>
2023-04-11 12:37:16 +01:00

43 lines
978 B
C

// SPDX-License-Identifier: GPL-2.0-or-later
/*
* CS4271 I2C audio driver
*
* Copyright (c) 2010 Alexander Sverdlin <subaparts@yandex.ru>
*/
#include <linux/module.h>
#include <linux/i2c.h>
#include <linux/regmap.h>
#include <sound/soc.h>
#include "cs4271.h"
static int cs4271_i2c_probe(struct i2c_client *client)
{
struct regmap_config config;
config = cs4271_regmap_config;
config.reg_bits = 8;
return cs4271_probe(&client->dev,
devm_regmap_init_i2c(client, &config));
}
static const struct i2c_device_id cs4271_i2c_id[] = {
{ "cs4271", 0 },
{ }
};
MODULE_DEVICE_TABLE(i2c, cs4271_i2c_id);
static struct i2c_driver cs4271_i2c_driver = {
.driver = {
.name = "cs4271",
.of_match_table = of_match_ptr(cs4271_dt_ids),
},
.probe_new = cs4271_i2c_probe,
.id_table = cs4271_i2c_id,
};
module_i2c_driver(cs4271_i2c_driver);
MODULE_DESCRIPTION("ASoC CS4271 I2C Driver");
MODULE_AUTHOR("Alexander Sverdlin <subaparts@yandex.ru>");
MODULE_LICENSE("GPL");