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| author | Laxman Dewangan <ldewangan@nvidia.com> | 2012-02-21 18:21:34 +0530 |
|---|---|---|
| committer | Samuel Ortiz <sameo@linux.intel.com> | 2012-03-06 18:46:50 +0100 |
| commit | dc9913a050f1898c6a77f4f5606bc194d530aafd (patch) | |
| tree | 777acac138bc643b7eebe9d3b0203ba331e36022 /drivers/mfd/Kconfig | |
| parent | 2853378b6eafd8b9e2f0e39ab599c93ce518b04d (diff) | |
| download | linux-dc9913a050f1898c6a77f4f5606bc194d530aafd.tar.gz linux-dc9913a050f1898c6a77f4f5606bc194d530aafd.tar.xz linux-dc9913a050f1898c6a77f4f5606bc194d530aafd.zip | |
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>
Diffstat (limited to 'drivers/mfd/Kconfig')
| -rw-r--r-- | drivers/mfd/Kconfig | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/mfd/Kconfig b/drivers/mfd/Kconfig index d92bea2c468f..16178e1d2ab4 100644 --- a/drivers/mfd/Kconfig +++ b/drivers/mfd/Kconfig @@ -177,6 +177,7 @@ config MFD_TPS65910 depends on I2C=y && GPIOLIB select MFD_CORE select GPIO_TPS65910 + select REGMAP_I2C help if you say yes here you get support for the TPS65910 series of Power Management chips. |