[PATCH 5.8 247/633] ASoC: tas2770: Add missing bias level power states

[Greg Kroah-Hartman]

From: Dan Murphy <dmurphy@xxxxxx>

[ Upstream commit 4272caf34aa4699eca8e6e7f4a8e5ea2bde275c9 ]

Add the BIAS_STANDBY and BIAS_PREPARE to the set_bias_level or else the
driver will return -EINVAL which is not correct as they are valid
states.

Fixes: 1a476abc723e6 ("tas2770: add tas2770 smart PA kernel driver")
Signed-off-by: Dan Murphy <dmurphy@xxxxxx>
Link: https://lore.kernel.org/r/20200918190548.12598-2-dmurphy@xxxxxx
Signed-off-by: Mark Brown <broonie@xxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
 sound/soc/codecs/tas2770.c | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/sound/soc/codecs/tas2770.c b/sound/soc/codecs/tas2770.c
index 9f759c51ca435..4d67b1c160380 100644
--- a/sound/soc/codecs/tas2770.c
+++ b/sound/soc/codecs/tas2770.c
@@ -57,7 +57,12 @@ static int tas2770_set_bias_level(struct snd_soc_component *component,
 			TAS2770_PWR_CTRL_MASK,
 			TAS2770_PWR_CTRL_ACTIVE);
 		break;
-
+	case SND_SOC_BIAS_STANDBY:
+	case SND_SOC_BIAS_PREPARE:
+		snd_soc_component_update_bits(component,
+			TAS2770_PWR_CTRL,
+			TAS2770_PWR_CTRL_MASK, TAS2770_PWR_CTRL_MUTE);
+		break;
 	case SND_SOC_BIAS_OFF:
 		snd_soc_component_update_bits(component,
 			TAS2770_PWR_CTRL,
-- 
2.25.1