ASoC: Don't go through cache when applying WM5100 rev A updates

These are all to either uncached registers or fixes to register defaults,
in the former case the cache won't do anything and in the latter case
we're fixing things so the cache sync will do the right thing.
Signed-off-by: NMark Brown <broonie@opensource.wolfsonmicro.com>
Cc: stable@kernel.org

sound/soc/codecs/wm5100.c

@@ -1377,6 +1377,7 @@ static int wm5100_set_bias_level(struct snd_soc_codec *codec,
 
 			switch (wm5100->rev) {
 			case 0:
+				regcache_cache_bypass(wm5100->regmap, true);
 				snd_soc_write(codec, 0x11, 0x3);
 				snd_soc_write(codec, 0x203, 0xc);
 				snd_soc_write(codec, 0x206, 0);
@@ -1392,6 +1393,7 @@ static int wm5100_set_bias_level(struct snd_soc_codec *codec,
 					snd_soc_write(codec,
 						      wm5100_reva_patches[i].reg,
 						      wm5100_reva_patches[i].val);
+				regcache_cache_bypass(wm5100->regmap, false);
 				break;
 			default:
 				break;