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Subject[PATCH 10/25] ASoC: sun8i-codec: Program format before clock inversion
Date
The LRCK inversion bit has a different meaning in DSP mode: it selects
between DSP A and DSP B formats. To support this, we need to know if
the selected format is a DSP format. One easy way to do this is to set
the format field before the inversion fields.

Signed-off-by: Samuel Holland <samuel@sholland.org>
---
sound/soc/sunxi/sun8i-codec.c | 46 +++++++++++++++++------------------
1 file changed, 23 insertions(+), 23 deletions(-)

diff --git a/sound/soc/sunxi/sun8i-codec.c b/sound/soc/sunxi/sun8i-codec.c
index 346f699c2e86..0b713b2a2028 100644
--- a/sound/soc/sunxi/sun8i-codec.c
+++ b/sound/soc/sunxi/sun8i-codec.c
@@ -168,33 +168,55 @@ static int sun8i_codec_get_hw_rate(struct snd_pcm_hw_params *params)
default:
return -EINVAL;
}
}

static int sun8i_codec_set_fmt(struct snd_soc_dai *dai, unsigned int fmt)
{
struct sun8i_codec *scodec = snd_soc_dai_get_drvdata(dai);
- u32 value;
+ u32 format, value;

/* clock masters */
switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
case SND_SOC_DAIFMT_CBS_CFS: /* Codec slave, DAI master */
value = 0x1;
break;
case SND_SOC_DAIFMT_CBM_CFM: /* Codec Master, DAI slave */
value = 0x0;
break;
default:
return -EINVAL;
}
regmap_update_bits(scodec->regmap, SUN8I_AIF1CLK_CTRL,
BIT(SUN8I_AIF1CLK_CTRL_AIF1_MSTR_MOD),
value << SUN8I_AIF1CLK_CTRL_AIF1_MSTR_MOD);

+ /* DAI format */
+ switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
+ case SND_SOC_DAIFMT_I2S:
+ format = 0x0;
+ break;
+ case SND_SOC_DAIFMT_LEFT_J:
+ format = 0x1;
+ break;
+ case SND_SOC_DAIFMT_RIGHT_J:
+ format = 0x2;
+ break;
+ case SND_SOC_DAIFMT_DSP_A:
+ case SND_SOC_DAIFMT_DSP_B:
+ format = 0x3;
+ break;
+ default:
+ return -EINVAL;
+ }
+ regmap_update_bits(scodec->regmap, SUN8I_AIF1CLK_CTRL,
+ SUN8I_AIF1CLK_CTRL_AIF1_DATA_FMT_MASK,
+ format << SUN8I_AIF1CLK_CTRL_AIF1_DATA_FMT);
+
/* clock inversion */
switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
case SND_SOC_DAIFMT_NB_NF: /* Normal */
value = 0x0;
break;
case SND_SOC_DAIFMT_IB_IF: /* Inversion */
value = 0x1;
break;
@@ -215,38 +237,16 @@ static int sun8i_codec_set_fmt(struct snd_soc_dai *dai, unsigned int fmt)
* that the codec probably gets it backward, and we have to
* invert the value here.
*/
value ^= scodec->quirks->lrck_inversion;
regmap_update_bits(scodec->regmap, SUN8I_AIF1CLK_CTRL,
BIT(SUN8I_AIF1CLK_CTRL_AIF1_LRCK_INV),
value << SUN8I_AIF1CLK_CTRL_AIF1_LRCK_INV);

- /* DAI format */
- switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
- case SND_SOC_DAIFMT_I2S:
- value = 0x0;
- break;
- case SND_SOC_DAIFMT_LEFT_J:
- value = 0x1;
- break;
- case SND_SOC_DAIFMT_RIGHT_J:
- value = 0x2;
- break;
- case SND_SOC_DAIFMT_DSP_A:
- case SND_SOC_DAIFMT_DSP_B:
- value = 0x3;
- break;
- default:
- return -EINVAL;
- }
- regmap_update_bits(scodec->regmap, SUN8I_AIF1CLK_CTRL,
- SUN8I_AIF1CLK_CTRL_AIF1_DATA_FMT_MASK,
- value << SUN8I_AIF1CLK_CTRL_AIF1_DATA_FMT);
-
return 0;
}

struct sun8i_codec_clk_div {
u8 div;
u8 val;
};

--
2.26.2
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