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    SubjectRe: [PATCH 2/2] regmap: Support some more block operations on cached devices
    On Tue, Nov 08, 2011 at 06:37:26PM +0100, Lars-Peter Clausen wrote:
    > Commit 10a08d9f ("regmap: Support some block operations on cached devices")
    > allowed raw read operations without throwing a warning when using caches if
    > all registers are volatile. This patch does the same for raw write operations.
    >
    > This is for example useful when loading a firmware in a predefined volatile
    > region on a chip where we otherwise want registers to be cached.
    >
    > Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
    > ---
    > drivers/base/regmap/regmap.c | 4 +++-
    > 1 files changed, 3 insertions(+), 1 deletions(-)
    >
    > diff --git a/drivers/base/regmap/regmap.c b/drivers/base/regmap/regmap.c
    > index 4016b00..a471083 100644
    > --- a/drivers/base/regmap/regmap.c
    > +++ b/drivers/base/regmap/regmap.c
    > @@ -387,9 +387,11 @@ EXPORT_SYMBOL_GPL(regmap_write);
    > int regmap_raw_write(struct regmap *map, unsigned int reg,
    > const void *val, size_t val_len)
    > {
    > + size_t val_count = val_len / map->format.val_bytes;
    > int ret;
    >
    > - WARN_ON(map->cache_type != REGCACHE_NONE);
    > + WARN_ON(!regmap_volatile_range(map, reg, val_count) &&
    > + map->cache_type != REGCACHE_NONE);
    >
    > mutex_lock(&map->lock);
    >
    > --
    > 1.7.7

    Acked-by: Dimitris Papastamos <dp@opensource.wolfsonmicro.com>


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