diff options
| author |   David S. Miller <davem@davemloft.net> | 2015-10-08 04:01:28 -0700 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2015-10-08 04:01:28 -0700 |
| commit | 61d0372028d98046176a8a36e40b78b5bbac5512 (patch) | |
| tree | 1ebd9c640207328e5282a6b3d61c8fc39771e742 /include/linux | |
| parent | tcp: ensure prior synack rtx behavior with small backlogs (diff) | |
| parent | regmap: Allow installing custom reg_update_bits function (diff) | |
| download | linux-dev-61d0372028d98046176a8a36e40b78b5bbac5512.tar.xz linux-dev-61d0372028d98046176a8a36e40b78b5bbac5512.zip | |
Merge tag 'regmap-offload-update-bits' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regmap
regmap: Allow buses to provide a custom update_bits() operation
Some buses provide a native _update_bits() operation which for uncached
registers is faster than doing a read/modify/write cycle as it is a
single bus transaction. Add support for implementing this to regmap.
Diffstat (limited to 'include/linux')
| -rw-r--r-- | include/linux/regmap.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/include/linux/regmap.h b/include/linux/regmap.h index 8fc0bfd8edc4..b49d4133750e 100644 --- a/include/linux/regmap.h +++ b/include/linux/regmap.h @@ -296,6 +296,8 @@ 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); typedef struct regmap_async *(*regmap_hw_async_alloc)(void); typedef void (*regmap_hw_free_context)(void *context); @@ -335,6 +337,7 @@ 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; |