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regmap: split up regmap_config.use_single_rw

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Split regmap_config.use_single_rw into use_single_read and
use_single_write. This change enables drivers of devices which only
support bulk operations in one direction to use the regmap_bulk_*()
functions for both directions and have their bulk operation split into
single operations only when necessary.

Update all struct regmap_config instances where use_single_rw==true to
instead set both use_single_read and use_single_write. No attempt was
made to evaluate whether it is possible to set only one of
use_single_read or use_single_write.

Signed-off-by: David Frey <dpfrey@gmail.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
David Frey 2018-09-01 09:50:41 -07:00 • committed by Mark Brown
parent 9ad8eb0168
commit 1c96a2f67c
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GPG key ID: 24D68B725D5487D0
34 changed files with 91 additions and 50 deletions
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12
include/linux/regmap.h
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@ -315,9 +315,12 @@ typedef void (*regmap_unlock)(void *);
* masks are used.
* @zero_flag_mask: If set, read_flag_mask and write_flag_mask are used even
* if they are both empty.
* @use_single_rw: If set, converts the bulk read and write operations into
* a series of single read and write operations. This is useful
* for device that does not support bulk read and write.
* @use_single_read: If set, converts the bulk read operation into a series of
* single read operations. This is useful for a device that
* does not support bulk read.
* @use_single_write: If set, converts the bulk write operation into a series of
* single write operations. This is useful for a device that
* does not support bulk write.
* @can_multi_write: If set, the device supports the multi write mode of bulk
* write operations, if clear multi write requests will be
* split into individual write operations
@ -380,7 +383,8 @@ struct regmap_config {
unsigned long write_flag_mask;
bool zero_flag_mask;
bool use_single_rw;
bool use_single_read;
bool use_single_write;
bool can_multi_write;
enum regmap_endian reg_format_endian;