From 8ad7f3b265a87cd4e5052677545f90f14c855b10 Mon Sep 17 00:00:00 2001 From: Pei Xiao Date: Fri, 10 Apr 2026 10:29:24 +0800 Subject: regmap: i3c: Add non-devm regmap_init_i3c() helper 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 Link: https://patch.msgid.link/a81256a8866b163979a20406abf01df7d7440104.1775788105.git.xiaopei01@kylinos.cn Signed-off-by: Mark Brown --- drivers/base/regmap/regmap-i3c.c | 10 ++++++++++ include/linux/regmap.h | 17 +++++++++++++++++ 2 files changed, 27 insertions(+) diff --git a/drivers/base/regmap/regmap-i3c.c b/drivers/base/regmap/regmap-i3c.c index 863b348704dc..5af583d472dd 100644 --- a/drivers/base/regmap/regmap-i3c.c +++ b/drivers/base/regmap/regmap-i3c.c @@ -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, ®map_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, diff --git a/include/linux/regmap.h b/include/linux/regmap.h index f1c5cb63c171..df44cb30f53b 100644 --- a/include/linux/regmap.h +++ b/include/linux/regmap.h @@ -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 -- cgit v1.2.3