From 8cfe2fd3562ba673435bb2d7a4bb451aabd47809 Mon Sep 17 00:00:00 2001 From: Xiubo Li Date: Fri, 11 Dec 2015 11:23:19 +0800 Subject: [PATCH] regmap: cache: Add warning info for the cache check If there is no cache used for the drivers, the register defaults or the register defaults raw are not need any more. This patch will check this and print a warning. Signed-off-by: Xiubo Li Signed-off-by: Mark Brown --- drivers/base/regmap/regcache.c | 12 ++++++++---- 1 file changed, 8 insertions(+), 4 deletions(-) diff --git a/drivers/base/regmap/regcache.c b/drivers/base/regmap/regcache.c index 4c07802986b2..9436a0d4cf71 100644 --- a/drivers/base/regmap/regcache.c +++ b/drivers/base/regmap/regcache.c @@ -100,15 +100,19 @@ int regcache_init(struct regmap *map, const struct regmap_config *config) int i; void *tmp_buf; - for (i = 0; i < config->num_reg_defaults; i++) - if (config->reg_defaults[i].reg % map->reg_stride) - return -EINVAL; - if (map->cache_type == REGCACHE_NONE) { + if (config->reg_defaults || config->num_reg_defaults_raw) + dev_warn(map->dev, + "No cache used with register defaults set!\n"); + map->cache_bypass = true; return 0; } + for (i = 0; i < config->num_reg_defaults; i++) + if (config->reg_defaults[i].reg % map->reg_stride) + return -EINVAL; + for (i = 0; i < ARRAY_SIZE(cache_types); i++) if (cache_types[i]->type == map->cache_type) break; -- 2.39.5