[alsa-devel] [PATCH] ASoC: rt5677: add register patch for PLL

Bard Liao bardliao at realtek.com
Fri Apr 24 09:19:29 CEST 2015


The PLL output will be unstable in some cases. We can fix it by
setting some registers.

Signed-off-by: Bard Liao <bardliao at realtek.com>
---
 sound/soc/codecs/rt5677.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/sound/soc/codecs/rt5677.c b/sound/soc/codecs/rt5677.c
index af18258..9c07a0c 100644
--- a/sound/soc/codecs/rt5677.c
+++ b/sound/soc/codecs/rt5677.c
@@ -62,6 +62,9 @@ static const struct reg_default init_list[] = {
 	{RT5677_PR_BASE + 0x1e,	0x0000},
 	{RT5677_PR_BASE + 0x12,	0x0eaa},
 	{RT5677_PR_BASE + 0x14,	0x018a},
+	{RT5677_PR_BASE + 0x15,	0x0490},
+	{RT5677_PR_BASE + 0x38,	0x0f71},
+	{RT5677_PR_BASE + 0x39,	0x0f71},
 };
 #define RT5677_INIT_REG_LEN ARRAY_SIZE(init_list)
 
-- 
1.8.1.1.439.g50a6b54



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