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| author |   Mark Brown <broonie@kernel.org> | 2015-09-04 17:22:07 +0100 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2015-09-04 17:22:07 +0100 |
| commit | f74741615368af1b8401be4b7a6f0b9ccbc2420a (patch) | |
| tree | 2fa8ca4b843c405d4a89b48144f2eb661ac1420d /drivers/base | |
| parent | Merge remote-tracking branch 'regmap/fix/core' into regmap-linus (diff) | |
| parent | regmap: regmap_raw_read return error on !bus->read (diff) | |
| download | linux-dev-f74741615368af1b8401be4b7a6f0b9ccbc2420a.tar.xz linux-dev-f74741615368af1b8401be4b7a6f0b9ccbc2420a.zip | |
Merge remote-tracking branch 'regmap/fix/raw' into regmap-linus
Diffstat (limited to 'drivers/base')
| -rw-r--r-- | drivers/base/regmap/regmap.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/drivers/base/regmap/regmap.c b/drivers/base/regmap/regmap.c index 9b4badc2479d..c0aeda553c18 100644 --- a/drivers/base/regmap/regmap.c +++ b/drivers/base/regmap/regmap.c @@ -2184,6 +2184,11 @@ int regmap_raw_read(struct regmap *map, unsigned int reg, void *val, if (regmap_volatile_range(map, reg, val_count) || map->cache_bypass || map->cache_type == REGCACHE_NONE) { + if (!map->bus->read) { + ret = -ENOTSUPP; + goto out; + } + /* Physical block read if there's no cache involved */ ret = _regmap_raw_read(map, reg, val, val_len); |