diff options
| author | Laxman Dewangan <ldewangan@nvidia.com> | 2012-02-21 18:21:34 +0530 |
|---|---|---|
| committer | Simone Willett <swillett@nvidia.com> | 2012-02-28 21:06:56 -0800 |
| commit | 8f1f7fad4abcf4daa5af0e0517a031c7240cfc68 (patch) | |
| tree | b71fcc4e6bbec85ac47778c6cffca87216b47a27 /include/linux | |
| parent | eb4ffeb3a543b504cd9e9309d4bb1547e506f70d (diff) | |
mfd: Use regmap for tps65910 register access.
Using regmap apis for accessing the device registers and
using RBTREE caching mechanims for caching registers.
Enabling caching of the registers which is used for voltage
controls. By doing this, the modify_bits operation is faster as
it does not involve the i2c register read from device, just read
from cache. This results faster set voltage operation.
Signed-off-by: Laxman Dewangan <ldewangan@nvidia.com>
Reviewed-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
cherry picked from mainline commit
0e7018c7b161dc5544f7af862dc59e0b9a0dbd20
Change-Id: Ie0bc1fd32f1c7f7b80004b30ec9ba615d4c29360
Signed-off-by: Laxman Dewangan <ldewangan@nvidia.com>
Reviewed-on: http://git-master/r/86349
Diffstat (limited to 'include/linux')
| -rw-r--r-- | include/linux/mfd/tps65910.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/include/linux/mfd/tps65910.h b/include/linux/mfd/tps65910.h index 520f1bffa8b8..06a4cd66a3b1 100644 --- a/include/linux/mfd/tps65910.h +++ b/include/linux/mfd/tps65910.h @@ -805,6 +805,7 @@ struct tps65910_board { struct tps65910 { struct device *dev; struct i2c_client *i2c_client; + struct regmap *regmap; struct mutex io_mutex; unsigned int id; int (*read)(struct tps65910 *tps65910, u8 reg, int size, void *dest); |