From d6814a7dafa590ec5fe0597922ea76354f9bec59 Mon Sep 17 00:00:00 2001 From: Mark Brown Date: Wed, 29 May 2013 15:54:54 +0100 Subject: [PATCH] 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 Signed-off-by: Mark Brown --- drivers/base/regmap/regmap-debugfs.c | 4 ++++ 1 file changed, 4 insertions(+) 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.