[alsa-devel] [PATCH 3/4] ASoC: rt5645: Use update_bits for bit control

[Bard Liao]

In codec bias level off, we need to disable gate mode with MCLK
for power saving. It is set by one bit. We don't need to write
while register for that.

Signed-off-by: Bard Liao <bardliao at realtek.com>
---
 sound/soc/codecs/rt5645.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/sound/soc/codecs/rt5645.c b/sound/soc/codecs/rt5645.c
index f9edf09..b6d5b95 100644
--- a/sound/soc/codecs/rt5645.c
+++ b/sound/soc/codecs/rt5645.c
@@ -2396,7 +2396,8 @@ static int rt5645_set_bias_level(struct snd_soc_codec *codec,
 
 	case SND_SOC_BIAS_OFF:
 		snd_soc_write(codec, RT5645_DEPOP_M2, 0x1100);
-		snd_soc_write(codec, RT5645_GEN_CTRL1, 0x0128);
+		snd_soc_update_bits(codec, RT5645_GEN_CTRL1,
+				RT5645_DIG_GATE_CTRL, 0);
 		snd_soc_update_bits(codec, RT5645_PWR_ANLG1,
 				RT5645_PWR_VREF1 | RT5645_PWR_MB |
 				RT5645_PWR_BG | RT5645_PWR_VREF2 |
-- 
1.8.1.1.439.g50a6b54