diff options
| author | Marc Reilly <marc@cpdesign.com.au> | 2012-03-16 12:11:42 +1100 |
|---|---|---|
| committer | Mark Brown <broonie@opensource.wolfsonmicro.com> | 2012-04-01 11:54:06 +0100 |
| commit | ea279fc5619e2541a0c28196b0fa06447d9ad026 (patch) | |
| tree | 897b7c313849b90d50e4c02efe3082dbdf8304da /drivers/base | |
| parent | dd775ae2549217d3ae09363e3edb305d0fa19928 (diff) | |
| download | linux-ea279fc5619e2541a0c28196b0fa06447d9ad026.tar.gz linux-ea279fc5619e2541a0c28196b0fa06447d9ad026.tar.xz linux-ea279fc5619e2541a0c28196b0fa06447d9ad026.zip | |
regmap: Add support for device with 24 data bits.
Add support for devices with 24 data bits.
Signed-off-by: Marc Reilly <marc@cpdesign.com.au>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Diffstat (limited to 'drivers/base')
| -rw-r--r-- | drivers/base/regmap/regmap.c | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/drivers/base/regmap/regmap.c b/drivers/base/regmap/regmap.c index 7a3f535e481c..8ffce9bdb481 100644 --- a/drivers/base/regmap/regmap.c +++ b/drivers/base/regmap/regmap.c @@ -126,6 +126,15 @@ static void regmap_format_16(void *buf, unsigned int val) b[0] = cpu_to_be16(val); } +static void regmap_format_24(void *buf, unsigned int val) +{ + u8 *b = buf; + + b[0] = val >> 16; + b[1] = val >> 8; + b[2] = val; +} + static void regmap_format_32(void *buf, unsigned int val) { __be32 *b = buf; @@ -149,6 +158,16 @@ static unsigned int regmap_parse_16(void *buf) return b[0]; } +static unsigned int regmap_parse_24(void *buf) +{ + u8 *b = buf; + unsigned int ret = b[2]; + ret |= ((unsigned int)b[1]) << 8; + ret |= ((unsigned int)b[0]) << 16; + + return ret; +} + static unsigned int regmap_parse_32(void *buf) { __be32 *b = buf; @@ -273,6 +292,10 @@ struct regmap *regmap_init(struct device *dev, map->format.format_val = regmap_format_16; map->format.parse_val = regmap_parse_16; break; + case 24: + map->format.format_val = regmap_format_24; + map->format.parse_val = regmap_parse_24; + break; case 32: map->format.format_val = regmap_format_32; map->format.parse_val = regmap_parse_32; |