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regmap: debugfs: Suppress cache for partial register files

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The cache is based on the full register map so confuses things if used
for a partial map.

Reported-by: Bard Liao <bardliao@realtek.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
This commit is contained in:
Mark Brown 2013-05-29 15:54:54 +01:00 • committed by Mark Brown
commit d6814a7daf
1 changed files with 4 additions and 0 deletions
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4
drivers/base/regmap/regmap-debugfs.c
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@ -84,6 +84,10 @@ static unsigned int regmap_debugfs_get_dump_start(struct regmap *map,
unsigned int fpos_offset;
unsigned int reg_offset;
/* Suppress the cache if we're using a subrange */
if (from)
return from;
/*
* If we don't have a cache build one so we don't have to do a
* linear scan each time.