In preperation for the upcoming patches, modify map->cache_bypass
directly.  The helper functions will grab an exclusive lock.  Because
we'll have acquired the same lock we need to avoid a deadlock.
Signed-off-by: Dimitris Papastamos <dp@opensource.wolfsonmicro.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
                        ret = regcache_read(map, i, &val);
                        if (ret < 0)
                                goto out;
-                       regcache_cache_bypass(map, true);
+                       map->cache_bypass = 1;
                        ret = regmap_write(map, i, val);
-                       regcache_cache_bypass(map, false);
+                       map->cache_bypass = 0;
                        if (ret < 0)
                                goto out;
                        dev_dbg(map->dev, "Synced register %#x, value %#x\n",