[13/89] ASoC: Mark WM5100 register map cache only when going into BIAS_OFF

[Greg KH]

3.2-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Mark Brown <broonie@xxxxxxxxxxxxxxxxxxxxxxxxxxx>

commit e53e417331c57b9b97e3f8be870214a02c99265c upstream.

Writing to the registers won't work if we do actually manage to hit a fully
powered off state.

Signed-off-by: Mark Brown <broonie@xxxxxxxxxxxxxxxxxxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>

---
 sound/soc/codecs/wm5100.c |    1 +
 1 file changed, 1 insertion(+)

--- a/sound/soc/codecs/wm5100.c
+++ b/sound/soc/codecs/wm5100.c
@@ -1404,6 +1404,7 @@ static int wm5100_set_bias_level(struct
 		break;
 
 	case SND_SOC_BIAS_OFF:
+		regcache_cache_only(wm5100->regmap, true);
 		if (wm5100->pdata.ldo_ena)
 			gpio_set_value_cansleep(wm5100->pdata.ldo_ena, 0);
 		regulator_bulk_disable(ARRAY_SIZE(wm5100->core_supplies),


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