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| author |   Jon Ringle <jringle@gridpoint.com> | 2015-10-01 07:43:20 -0400 |
|---|---|---|
| committer |   David S. Miller <davem@davemloft.net> | 2015-10-05 04:02:40 -0700 |
| commit | 7741c373cf3ea1f5383fa97fb7a640a429d3dd7c (patch) | |
| tree | 83052fc982be30c96213875967fedd35e03a89ca /drivers/base/regmap/internal.h | |
| parent | enic: do hang reset only in case of tx timeout (diff) | |
| download | linux-dev-7741c373cf3ea1f5383fa97fb7a640a429d3dd7c.tar.xz linux-dev-7741c373cf3ea1f5383fa97fb7a640a429d3dd7c.zip | |
regmap: Allow installing custom reg_update_bits function
This commit allows installing a custom reg_update_bits function for cases where
the hardware provides a mechanism to set or clear register bits without a
read/modify/write cycle. Such is the case with the Microchip ENCX24J600.
Signed-off-by: Jon Ringle <jringle@gridpoint.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/base/regmap/internal.h')
| -rw-r--r-- | drivers/base/regmap/internal.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/base/regmap/internal.h b/drivers/base/regmap/internal.h index cc557886ab23..4036d7a90f63 100644 --- a/drivers/base/regmap/internal.h +++ b/drivers/base/regmap/internal.h @@ -98,6 +98,9 @@ struct regmap { int (*reg_read)(void *context, unsigned int reg, unsigned int *val); int (*reg_write)(void *context, unsigned int reg, unsigned int val); + int (*reg_update_bits)(void *context, unsigned int reg, + unsigned int mask, unsigned int val, + bool *change, bool force_write); bool defer_caching; |