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authorMark Brown <broonie@opensource.wolfsonmicro.com>2013-05-29 15:54:54 +0100
committerMark Brown <broonie@linaro.org>2013-06-19 10:18:09 +0100
commitd6814a7dafa590ec5fe0597922ea76354f9bec59 (patch)
tree552ba2bc6296e19f710e91a8649fa632d1c056cb /drivers/base
parentd856fce41b74ecf2004d99f781e44abd7815d7f8 (diff)
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regmap: debugfs: Suppress cache for partial register files
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>
Diffstat (limited to 'drivers/base')
-rw-r--r--drivers/base/regmap/regmap-debugfs.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/base/regmap/regmap-debugfs.c b/drivers/base/regmap/regmap-debugfs.c
index 23b701f5fd2f..686400994868 100644
--- a/drivers/base/regmap/regmap-debugfs.c
+++ b/drivers/base/regmap/regmap-debugfs.c
@@ -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.