From e42c5a9a4230c38ceba0a890b30a2d0dd9314bff Mon Sep 17 00:00:00 2001 From: Mark Brown Date: Sun, 9 Oct 2011 14:30:02 +0100 Subject: [PATCH] regmap: Allow rbtree to cache zero default values Ensure that when we start up in cache only mode we can store defaults of zero, otherwise if the hardware is unavailable we won't be able to read. Signed-off-by: Mark Brown Acked-by: Dimitris Papastamos --- drivers/base/regmap/regcache-rbtree.c | 3 --- 1 file changed, 3 deletions(-) diff --git a/drivers/base/regmap/regcache-rbtree.c b/drivers/base/regmap/regcache-rbtree.c index 887dbce63af..52511f95857 100644 --- a/drivers/base/regmap/regcache-rbtree.c +++ b/drivers/base/regmap/regcache-rbtree.c @@ -252,9 +252,6 @@ static int regcache_rbtree_write(struct regmap *map, unsigned int reg, regcache_rbtree_set_register(rbnode, reg_tmp, value, map->cache_word_size); } else { - /* bail out early, no need to create the rbnode yet */ - if (!value) - return 0; /* look for an adjacent register to the one we are about to add */ for (node = rb_first(&rbtree_ctx->root); node; node = rb_next(node)) {