diff options
| author | Fabio Estevam <fabio.estevam@freescale.com> | 2012-05-31 21:10:30 -0300 |
|---|---|---|
| committer | Mark Brown <broonie@opensource.wolfsonmicro.com> | 2012-06-03 13:14:01 +0100 |
| commit | 5494a98f451d59f6c05f3f688510e0832445f661 (patch) | |
| tree | 4df15dff1a3f3c490999c733aff7732ee968a2f9 /drivers/base/regmap | |
| parent | bfaa25f33425db16a942b7c71e396a47581c646d (diff) | |
| download | blackbird-op-linux-5494a98f451d59f6c05f3f688510e0832445f661.tar.gz blackbird-op-linux-5494a98f451d59f6c05f3f688510e0832445f661.zip | |
regmap: Fix the size calculation for map->format.buf_size
The word to be transmitted/received via regmap is composed by the following
parts:
config->reg_bits
config->val_bits
config->pad_bits
,so the total size should be calculated by summing up the number of bits of
each element and using a DIV_ROUND_UP to return the number of bytes.
Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Diffstat (limited to 'drivers/base/regmap')
| -rw-r--r-- | drivers/base/regmap/regmap.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/base/regmap/regmap.c b/drivers/base/regmap/regmap.c index 2aa076e61367..04b48027c213 100644 --- a/drivers/base/regmap/regmap.c +++ b/drivers/base/regmap/regmap.c @@ -246,11 +246,11 @@ struct regmap *regmap_init(struct device *dev, map->lock = regmap_lock_mutex; map->unlock = regmap_unlock_mutex; } - map->format.buf_size = (config->reg_bits + config->val_bits) / 8; map->format.reg_bytes = DIV_ROUND_UP(config->reg_bits, 8); map->format.pad_bytes = config->pad_bits / 8; map->format.val_bytes = DIV_ROUND_UP(config->val_bits, 8); - map->format.buf_size += map->format.pad_bytes; + map->format.buf_size = DIV_ROUND_UP(config->reg_bits + + config->val_bits + config->pad_bits, 8); map->reg_shift = config->pad_bits % 8; if (config->reg_stride) map->reg_stride = config->reg_stride; |
