github-mirror/linux
1
0
Fork 0
mirror of https://github.com/torvalds/linux.git synced 2026-05-30 01:53:29 +02:00
Code Issues Actions Packages Projects Releases Wiki Activity Graph

regmap: i3c: Add non-devm regmap_init_i3c() helper

Browse Source 
Add __regmap_init_i3c() and the corresponding regmap_init_i3c() macro to
allow creating a regmap for I3C devices without using the device-managed
version. This mirrors the pattern already established for other buses
such as I2C, SPI and so on, giving drivers more flexibility when
the regmap lifetime is not directly tied to the device.

Signed-off-by: Pei Xiao <xiaopei01@kylinos.cn>
Link: https://patch.msgid.link/a81256a8866b163979a20406abf01df7d7440104.1775788105.git.xiaopei01@kylinos.cn
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Pei Xiao 2026-04-10 10:29:24 +08:00 committed by Mark Brown
parent 7d696210cf
commit 8ad7f3b265
No known key found for this signature in database
GPG Key ID: 24D68B725D5487D0
2 changed files with 27 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

10
drivers/base/regmap/regmap-i3c.c
View File

@ -46,6 +46,16 @@ static const struct regmap_bus regmap_i3c = {
.read = regmap_i3c_read,
};
struct regmap *__regmap_init_i3c(struct i3c_device *i3c,
const struct regmap_config *config,
struct lock_class_key *lock_key,
const char *lock_name)
{
return __regmap_init(&i3c->dev, &regmap_i3c, &i3c->dev, config,
lock_key, lock_name);
}
EXPORT_SYMBOL_GPL(__regmap_init_i3c);
struct regmap *__devm_regmap_init_i3c(struct i3c_device *i3c,
const struct regmap_config *config,
struct lock_class_key *lock_key,

17
include/linux/regmap.h
View File

@ -693,6 +693,10 @@ struct regmap *__regmap_init_sdw_mbq(struct device *dev, struct sdw_slave *sdw,
const struct regmap_sdw_mbq_cfg *mbq_config,
struct lock_class_key *lock_key,
const char *lock_name);
struct regmap *__regmap_init_i3c(struct i3c_device *i3c,
const struct regmap_config *config,
struct lock_class_key *lock_key,
const char *lock_name);
struct regmap *__regmap_init_spi_avmm(struct spi_device *spi,
const struct regmap_config *config,
struct lock_class_key *lock_key,
@ -999,6 +1003,19 @@ bool regmap_ac97_default_volatile(struct device *dev, unsigned int reg);
__regmap_lockdep_wrapper(__regmap_init_sdw_mbq, #config, \
dev, sdw, config, mbq_config)
/**
* regmap_init_i3c() - Initialise register map
*
* @i3c: Device that will be interacted with
* @config: Configuration for register map
*
* The return value will be an ERR_PTR() on error or a valid pointer to
* a struct regmap.
*/
#define regmap_init_i3c(i3c, config) \
__regmap_lockdep_wrapper(__regmap_init_i3c, #config, \
i3c, config)
/**
* regmap_init_spi_avmm() - Initialize register map for Intel SPI Slave
* to AVMM Bus Bridge