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| author |   Peter Ujfalusi <peter.ujfalusi@ti.com> | 2014-01-03 15:27:47 +0200 |
|---|---|---|
| committer |   Lee Jones <lee.jones@linaro.org> | 2014-01-08 11:37:39 +0000 |
| commit | 3def927ea8c0a1983aa9f1499645efc53e005bb6 (patch) | |
| tree | 435f2ead61cc9258fbf389603510781cc9da9275 /include/linux/i2c | |
| parent | mfd: twl-core: Simplify IO wrapper functions by moving common code out (diff) | |
| download | linux-dev-3def927ea8c0a1983aa9f1499645efc53e005bb6.tar.xz linux-dev-3def927ea8c0a1983aa9f1499645efc53e005bb6.zip | |
mfd: twl-core: API to set the regcache bypass for a given regmap in twl
If the regcache is enabled on the regmap module drivers might need to access
to HW register(s) in certain cases in cache bypass mode.
As an example of this is the audio block's ANAMICL register. In normal
operation the content can be cached but during initialization one bit from
the register need to be monitored. With the twl_set_regcache_bypass() the
client driver can switch regcache bypass on and off when it is needed so
we can utilize the regcache for more registers.
Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Acked-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Diffstat (limited to 'include/linux/i2c')
| -rw-r--r-- | include/linux/i2c/twl.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/include/linux/i2c/twl.h b/include/linux/i2c/twl.h index 673a3ce67f31..a09da0910339 100644 --- a/include/linux/i2c/twl.h +++ b/include/linux/i2c/twl.h @@ -175,6 +175,9 @@ static inline int twl_class_is_ ##class(void) \ TWL_CLASS_IS(4030, TWL4030_CLASS_ID) TWL_CLASS_IS(6030, TWL6030_CLASS_ID) +/* Set the regcache bypass for the regmap associated with the nodule */ +int twl_set_regcache_bypass(u8 mod_no, bool enable); + /* * Read and write several 8-bit registers at once. */ |