Merge tag 'drm-fixes-for-4.8-rc6' of git://people.freedesktop.org/~airlied/linux

[cascardo/linux.git] / drivers / base / regmap / regcache.c

diff --git a/drivers/base/regmap/regcache.c b/drivers/base/regmap/regcache.c
index df7ff72..4e58256 100644 (file)
--- a/drivers/base/regmap/regcache.c
+++ b/drivers/base/regmap/regcache.c
@@ -38,10 +38,11 @@ static int regcache_hw_init(struct regmap *map)
 
        /* calculate the size of reg_defaults */
        for (count = 0, i = 0; i < map->num_reg_defaults_raw; i++)
-               if (!regmap_volatile(map, i * map->reg_stride))
+               if (regmap_readable(map, i * map->reg_stride) &&
+                   !regmap_volatile(map, i * map->reg_stride))
                        count++;
 
-       /* all registers are volatile, so just bypass */
+       /* all registers are unreadable or volatile, so just bypass */
        if (!count) {
                map->cache_bypass = true;
                return 0;