From 720e4616e8fd85284ef1addd8b8d93d8415e8dbc Mon Sep 17 00:00:00 2001 From: Lars-Peter Clausen Date: Wed, 16 Nov 2011 16:28:17 +0100 Subject: [PATCH] regmap: Make reg_config reg_defaults const The reg_defaults field usually points to a static per driver array, which should not be modified. Make requirement this explicit by making reg_defaults const. To allow this the regcache_init code needs some minor changes. Previoulsy the reg_config was not available in regcache_init and regmap->reg_defaults was used to pass the default register set to regcache_init. Now that the reg_config is available we can work on it directly. Signed-off-by: Lars-Peter Clausen Signed-off-by: Mark Brown --- drivers/base/regmap/regcache.c | 5 ++--- include/linux/regmap.h | 2 +- 2 files changed, 3 insertions(+), 4 deletions(-) diff --git a/drivers/base/regmap/regcache.c b/drivers/base/regmap/regcache.c index 0ad6cfb2c8cc..d687df6ebdb0 100644 --- a/drivers/base/regmap/regcache.c +++ b/drivers/base/regmap/regcache.c @@ -108,7 +108,6 @@ int regcache_init(struct regmap *map, const struct regmap_config *config) return -EINVAL; } - map->reg_defaults = config->reg_defaults; map->num_reg_defaults = config->num_reg_defaults; map->num_reg_defaults_raw = config->num_reg_defaults_raw; map->reg_defaults_raw = config->reg_defaults_raw; @@ -127,10 +126,10 @@ int regcache_init(struct regmap *map, const struct regmap_config *config) * won't vanish from under us. We'll need to make * a copy of it. */ - if (map->reg_defaults) { + if (config->reg_defaults) { if (!map->num_reg_defaults) return -EINVAL; - tmp_buf = kmemdup(map->reg_defaults, map->num_reg_defaults * + tmp_buf = kmemdup(config->reg_defaults, map->num_reg_defaults * sizeof(struct reg_default), GFP_KERNEL); if (!tmp_buf) return -ENOMEM; diff --git a/include/linux/regmap.h b/include/linux/regmap.h index 1e4ec2b6c2ea..458f15f4c37c 100644 --- a/include/linux/regmap.h +++ b/include/linux/regmap.h @@ -83,7 +83,7 @@ struct regmap_config { bool (*precious_reg)(struct device *dev, unsigned int reg); unsigned int max_register; - struct reg_default *reg_defaults; + const struct reg_default *reg_defaults; unsigned int num_reg_defaults; enum regcache_type cache_type; const void *reg_defaults_raw; -- 2.34.1