From c48a9d74926c83f62b0251eff0a3dde259923856 Mon Sep 17 00:00:00 2001 From: Lars-Peter Clausen Date: Tue, 8 Nov 2011 18:37:26 +0100 Subject: [PATCH] regmap: Support some more block operations on cached devices 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 Signed-off-by: Mark Brown --- drivers/base/regmap/regmap.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/drivers/base/regmap/regmap.c b/drivers/base/regmap/regmap.c index 5c4e76de38d2..3e30d168eb1d 100644 --- a/drivers/base/regmap/regmap.c +++ b/drivers/base/regmap/regmap.c @@ -389,9 +389,11 @@ 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);