[alsa-devel] [PATCH] ASoC: rt5645: reset RT5645_AD_DA_MIXER at probe

Bard Liao bardliao at realtek.com
Wed Nov 22 06:59:19 CET 2017


RT5645_AD_DA_MIXER (0x29) register will not be reset to default after
SW reset. So we have to write it to its default value in i2c_probe.

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

diff --git a/sound/soc/codecs/rt5645.c b/sound/soc/codecs/rt5645.c
index b7eef6a..27a3d3d 100644
--- a/sound/soc/codecs/rt5645.c
+++ b/sound/soc/codecs/rt5645.c
@@ -3815,6 +3815,8 @@ static int rt5645_i2c_probe(struct i2c_client *i2c,
 	regmap_read(regmap, RT5645_VENDOR_ID, &val);
 	rt5645->v_id = val & 0xff;
 
+	regmap_write(rt5645->regmap, RT5645_AD_DA_MIXER, 0x8080);
+
 	ret = regmap_register_patch(rt5645->regmap, init_list,
 				    ARRAY_SIZE(init_list));
 	if (ret != 0)
-- 
2.7.4



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