regmap: prevent noinc writes from clobbering cache

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[ Upstream commit 984a4afdc8 ]

Currently, noinc writes are cached as if they were standard incrementing
writes, overwriting unrelated register values in the cache. Instead, we
want to cache the last value written to the register, as is done in the
accelerated noinc handler (regmap_noinc_readwrite).

Fixes: cdf6b11daa ("regmap: Add regmap_noinc_write API")
Signed-off-by: Ben Wolsieffer <ben.wolsieffer@hefring.com>
Link: https://lore.kernel.org/r/20231101142926.2722603-2-ben.wolsieffer@hefring.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>

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Ben Wolsieffer 2023-11-01 10:29:27 -04:00 • committed by Greg Kroah-Hartman

parent 7ec7b7d3f2

commit 713629765f

1 changed files with 9 additions and 7 deletions

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drivers/base/regmap/regmap.c

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