Re: [alsa-devel] [PATCH] ASoC: rt5670: add set_bclk_ratio in dai ops

On Tue, 12 Sep 2017 08:20:05 +0200, Bard Liao wrote:

We need to set a specific bit for 50 bclk rate. So add set_bclk_ratio function to set the bit.

Signed-off-by: Bard Liao bardliao@realtek.com

sound/soc/codecs/rt5670.c | 17 +++++++++++++++++ 1 file changed, 17 insertions(+)

diff --git a/sound/soc/codecs/rt5670.c b/sound/soc/codecs/rt5670.c index 9545764..dbdd01c 100644 --- a/sound/soc/codecs/rt5670.c +++ b/sound/soc/codecs/rt5670.c @@ -2582,6 +2582,22 @@ static int rt5670_set_tdm_slot(struct snd_soc_dai *dai, unsigned int tx_mask, return 0; }

+static int rt5670_set_bclk_ratio(struct snd_soc_dai *dai, unsigned int ratio) +{

• struct snd_soc_codec *codec = dai->codec;
• dev_dbg(codec->dev, "%s ratio=%d\n", __func__, ratio);
• if (dai->id != RT5670_AIF1)

• return 0;
  

• if (ratio == 50)

• snd_soc_update_bits(codec, RT5670_GEN_CTRL3, 0x0800, 0x0800);
  

• else

• snd_soc_update_bits(codec, RT5670_GEN_CTRL3, 0x0800, 0x0);
  

Better to define some proper constant for 0x0800 bit.

thanks,

Takashi