openkylin
/
linux
mirror of https://gitee.com/openkylin/linux.git
9
0
Fork 0
Code Issues Projects Releases Wiki Activity

regmap: Allow regmap_bulk_read() to work for "no-bus" regmaps 

regmap_bulk_read() should decay to performing individual reads if
we're using a "no-bus" regmap. Unfortunately, it returns an
error because there is no map->bus pointer. Fix it.

Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
Signed-off-by: Mark Brown <broonie@linaro.org>
This commit is contained in:
Stephen Boyd 2013-12-13 09:14:07 -08:00 committed by Mark Brown
parent bd60e381fa
commit 3b58ee13da
1 changed files with 1 additions and 5 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

6
drivers/base/regmap/regmap.c
View File

@ -1897,14 +1897,10 @@ int regmap_bulk_read(struct regmap *map, unsigned int reg, void *val,
size_t val_bytes = map->format.val_bytes;
bool vol = regmap_volatile_range(map, reg, val_count);
if (!map->bus)
return -EINVAL;
if (!map->format.parse_inplace)
return -EINVAL;
if (reg % map->reg_stride)
return -EINVAL;
if (vol || map->cache_type == REGCACHE_NONE) {
if (map->bus && map->format.parse_inplace && (vol || map->cache_type == REGCACHE_NONE)) {
/*
* Some devices does not support bulk read, for
* them we have a series of single read operations.