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regmap: Allow longer flag masks for read and write

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We currently only support masking the top bit for read and write
flags. Let's make the mask unsigned long and mask the bytes based
on the configured register length to make things more generic.

This allows using regmap for more exotic combinations like SPI
devices that need little endian addressing.

Signed-off-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Tony Lindgren
2016-09-15 13:56:10 -07:00
committed by Mark Brown
parent 29b4817d40
commit f50e38c996
3 changed files with 25 additions and 19 deletions
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4
drivers/base/regmap/internal.h
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@@ -105,8 +105,8 @@ struct regmap {
bool defer_caching;
u8 read_flag_mask;
u8 write_flag_mask;
unsigned long read_flag_mask;
unsigned long write_flag_mask;
/* number of bits to (left) shift the reg value when formatting*/
int reg_shift;