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| author | Takashi Iwai <tiwai@suse.de> | 2015-09-25 18:31:16 +0200 |
|---|---|---|
| committer | Takashi Iwai <tiwai@suse.de> | 2015-09-25 18:31:42 +0200 |
| commit | 2d239afb51b7e622094b4bda0ccba214dbbd8d7c (patch) | |
| tree | 441b944dbfa1940ebe8a96d91c7e8d3e0d0504f7 | |
| parent | 91fbf931d57559f995370d116fcebdbb037465ed (diff) | |
| download | hda-emu-2d239afb51b7e622094b4bda0ccba214dbbd8d7c.tar.gz | |
Fix regmap_read() behavior in cache_only mode
Align with the original behavior, return -EBUSY if cache_only is set
but no cache is available.
Signed-off-by: Takashi Iwai <tiwai@suse.de>
| -rw-r--r-- | lib/hdac_regmap.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/lib/hdac_regmap.c b/lib/hdac_regmap.c index b3d71b6..3f02f7c 100644 --- a/lib/hdac_regmap.c +++ b/lib/hdac_regmap.c @@ -121,6 +121,8 @@ int regmap_read(struct regmap *map, unsigned int reg, unsigned int *val) return -EINVAL; if (!map->cache_bypass && cache_read_reg(map, reg, val)) return 0; + if (map->cache_only) + return -EBUSY; err = map->config->reg_read(map->bus_context, reg, val); if (!err && !map->cache_bypass && !map->config->volatile_reg(map->dev, reg)) |