From: Andy Shevchenko Date: Fri, 31 Oct 2025 08:03:16 +0000 (+0100) Subject: regcache: Add ->populate() callback to separate from ->init() X-Git-Tag: v6.19-rc1~152^2~6 X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=94a3a95f03154d8d4c6206950a7f6ef9a30baec6;p=thirdparty%2Fkernel%2Flinux.git regcache: Add ->populate() callback to separate from ->init() In the future changes we would like to change the flow of the cache handling. Add ->populate() callback in order to prepare for that. Signed-off-by: Andy Shevchenko Reviewed-by: Charles Keepax Link: https://patch.msgid.link/20251031080540.3970776-2-andriy.shevchenko@linux.intel.com Signed-off-by: Mark Brown --- diff --git a/drivers/base/regmap/internal.h b/drivers/base/regmap/internal.h index 8d19a1414d5b2..1477329410ec4 100644 --- a/drivers/base/regmap/internal.h +++ b/drivers/base/regmap/internal.h @@ -186,6 +186,7 @@ struct regcache_ops { enum regcache_type type; int (*init)(struct regmap *map); int (*exit)(struct regmap *map); + int (*populate)(struct regmap *map); #ifdef CONFIG_DEBUG_FS void (*debugfs_init)(struct regmap *map); #endif diff --git a/drivers/base/regmap/regcache.c b/drivers/base/regmap/regcache.c index 0392f5525cf30..319c342bf5a06 100644 --- a/drivers/base/regmap/regcache.c +++ b/drivers/base/regmap/regcache.c @@ -222,8 +222,24 @@ int regcache_init(struct regmap *map, const struct regmap_config *config) if (ret) goto err_free; } + + if (map->num_reg_defaults && map->cache_ops->populate) { + dev_dbg(map->dev, "Populating %s cache\n", map->cache_ops->name); + map->lock(map->lock_arg); + ret = map->cache_ops->populate(map); + map->unlock(map->lock_arg); + if (ret) + goto err_exit; + } return 0; +err_exit: + if (map->cache_ops->exit) { + dev_dbg(map->dev, "Destroying %s cache\n", map->cache_ops->name); + map->lock(map->lock_arg); + ret = map->cache_ops->exit(map); + map->unlock(map->lock_arg); + } err_free: kfree(map->reg_defaults); if (map->cache_free)