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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 /include/linux | |
| parent | 937317c7c1097aa878a5000e3aab616eb5c590c0 (diff) | |
| download | linux-stable-7741c373cf3ea1f5383fa97fb7a640a429d3dd7c.tar.gz linux-stable-7741c373cf3ea1f5383fa97fb7a640a429d3dd7c.tar.bz2 linux-stable-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 'include/linux')
| -rw-r--r-- | include/linux/regmap.h | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/include/linux/regmap.h b/include/linux/regmap.h index 8fc0bfd8edc4..4d3a3b1680bb 100644 --- a/include/linux/regmap.h +++ b/include/linux/regmap.h @@ -296,6 +296,9 @@ typedef int (*regmap_hw_reg_read)(void *context, unsigned int reg, unsigned int *val); typedef int (*regmap_hw_reg_write)(void *context, unsigned int reg, unsigned int val); +typedef int (*regmap_hw_reg_update_bits)(void *context, unsigned int reg, + unsigned int mask, unsigned int val, + bool *change, bool force_write); typedef struct regmap_async *(*regmap_hw_async_alloc)(void); typedef void (*regmap_hw_free_context)(void *context); @@ -335,6 +338,7 @@ struct regmap_bus { regmap_hw_gather_write gather_write; regmap_hw_async_write async_write; regmap_hw_reg_write reg_write; + regmap_hw_reg_update_bits reg_update_bits; regmap_hw_read read; regmap_hw_reg_read reg_read; regmap_hw_free_context free_context; |