diff options
| author | Dimitris Papastamos <dp@opensource.wolfsonmicro.com> | 2011-09-19 14:34:05 +0100 |
|---|---|---|
| committer | Mark Brown <broonie@opensource.wolfsonmicro.com> | 2011-09-19 19:06:35 +0100 |
| commit | 5d1729e7f02f050c73b68ce0198f8e5c48e9608a (patch) | |
| tree | dd570af616817e26d7ef8bd085d7cb9bb9cbf69b /drivers/base/regmap | |
| parent | 593600890110c02eb471cf844649dee213870416 (diff) | |
| download | linux-stable-5d1729e7f02f050c73b68ce0198f8e5c48e9608a.tar.gz linux-stable-5d1729e7f02f050c73b68ce0198f8e5c48e9608a.tar.bz2 linux-stable-5d1729e7f02f050c73b68ce0198f8e5c48e9608a.zip | |
regmap: Incorporate the regcache core into regmap
This patch incorporates the regcache core code into regmap. All previous
patches have been no-ops essentially up to this point.
The bulk read operation is not supported by regcache at the moment. This
will be implemented incrementally.
Signed-off-by: Dimitris Papastamos <dp@opensource.wolfsonmicro.com>
Tested-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Diffstat (limited to 'drivers/base/regmap')
| -rw-r--r-- | drivers/base/regmap/regmap.c | 31 |
1 files changed, 31 insertions, 0 deletions
diff --git a/drivers/base/regmap/regmap.c b/drivers/base/regmap/regmap.c index e7adfe70e425..35964659a81d 100644 --- a/drivers/base/regmap/regmap.c +++ b/drivers/base/regmap/regmap.c @@ -146,6 +146,13 @@ struct regmap *regmap_init(struct device *dev, map->readable_reg = config->readable_reg; map->volatile_reg = config->volatile_reg; map->precious_reg = config->precious_reg; + map->cache_type = config->cache_type; + 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; + map->cache_size_raw = (config->val_bits / 8) * config->num_reg_defaults_raw; + map->cache_word_size = config->val_bits / 8; if (config->read_flag_mask || config->write_flag_mask) { map->read_flag_mask = config->read_flag_mask; @@ -208,6 +215,10 @@ struct regmap *regmap_init(struct device *dev, goto err_map; } + ret = regcache_init(map); + if (ret < 0) + goto err_map; + regmap_debugfs_init(map); return map; @@ -224,6 +235,7 @@ EXPORT_SYMBOL_GPL(regmap_init); */ void regmap_exit(struct regmap *map) { + regcache_exit(map); regmap_debugfs_exit(map); kfree(map->work_buf); kfree(map); @@ -290,6 +302,14 @@ static int _regmap_write(struct regmap *map, unsigned int reg, int ret; BUG_ON(!map->format.format_write && !map->format.format_val); + if (!map->cache_bypass) { + ret = regcache_write(map, reg, val); + if (ret != 0) + return ret; + if (map->cache_only) + return 0; + } + trace_regmap_reg_write(map->dev, reg, val); if (map->format.format_write) { @@ -403,6 +423,15 @@ static int _regmap_read(struct regmap *map, unsigned int reg, if (!map->format.parse_val) return -EINVAL; + if (!map->cache_bypass) { + ret = regcache_read(map, reg, val); + if (ret == 0) + return 0; + } + + if (map->cache_only) + return -EBUSY; + ret = _regmap_raw_read(map, reg, map->work_buf, map->format.val_bytes); if (ret == 0) { *val = map->format.parse_val(map->work_buf); @@ -479,6 +508,8 @@ int regmap_bulk_read(struct regmap *map, unsigned int reg, void *val, int ret, i; size_t val_bytes = map->format.val_bytes; + WARN_ON(map->cache_type != REGCACHE_NONE); + if (!map->format.parse_val) return -EINVAL; |