diff options
Diffstat (limited to 'sound/soc')
| -rw-r--r-- | sound/soc/codecs/wm9081.c | 60 |
1 files changed, 35 insertions, 25 deletions
diff --git a/sound/soc/codecs/wm9081.c b/sound/soc/codecs/wm9081.c index c147f2b8723d..c64e55aa63b6 100644 --- a/sound/soc/codecs/wm9081.c +++ b/sound/soc/codecs/wm9081.c @@ -165,6 +165,7 @@ struct wm9081_priv { int master; int fll_fref; int fll_fout; + int tdm_width; struct wm9081_retune_mobile_config *retune; }; @@ -981,33 +982,37 @@ static int wm9081_hw_params(struct snd_pcm_substream *substream, aif4 = snd_soc_read(codec, WM9081_AUDIO_INTERFACE_4); aif4 &= ~WM9081_LRCLK_RATE_MASK; - /* What BCLK do we need? */ wm9081->fs = params_rate(params); - wm9081->bclk = 2 * wm9081->fs; - switch (params_format(params)) { - case SNDRV_PCM_FORMAT_S16_LE: - wm9081->bclk *= 16; - break; - case SNDRV_PCM_FORMAT_S20_3LE: - wm9081->bclk *= 20; - aif2 |= 0x4; - break; - case SNDRV_PCM_FORMAT_S24_LE: - wm9081->bclk *= 24; - aif2 |= 0x8; - break; - case SNDRV_PCM_FORMAT_S32_LE: - wm9081->bclk *= 32; - aif2 |= 0xc; - break; - default: - return -EINVAL; - } - if (aif1 & WM9081_AIFDAC_TDM_MODE_MASK) { + if (wm9081->tdm_width) { + /* If TDM is set up then that fixes our BCLK. */ int slots = ((aif1 & WM9081_AIFDAC_TDM_MODE_MASK) >> WM9081_AIFDAC_TDM_MODE_SHIFT) + 1; - wm9081->bclk *= slots; + + wm9081->bclk = wm9081->fs * wm9081->tdm_width * slots; + } else { + /* Otherwise work out a BCLK from the sample size */ + wm9081->bclk = 2 * wm9081->fs; + + switch (params_format(params)) { + case SNDRV_PCM_FORMAT_S16_LE: + wm9081->bclk *= 16; + break; + case SNDRV_PCM_FORMAT_S20_3LE: + wm9081->bclk *= 20; + aif2 |= 0x4; + break; + case SNDRV_PCM_FORMAT_S24_LE: + wm9081->bclk *= 24; + aif2 |= 0x8; + break; + case SNDRV_PCM_FORMAT_S32_LE: + wm9081->bclk *= 32; + aif2 |= 0xc; + break; + default: + return -EINVAL; + } } dev_dbg(codec->dev, "Target BCLK is %dHz\n", wm9081->bclk); @@ -1149,18 +1154,23 @@ static int wm9081_set_sysclk(struct snd_soc_dai *codec_dai, return 0; } -/* FIXME: Needs to handle slot_width */ static int wm9081_set_tdm_slot(struct snd_soc_dai *dai, unsigned int tx_mask, unsigned int rx_mask, int slots, int slot_width) { struct snd_soc_codec *codec = dai->codec; + struct wm9081_priv *wm9081 = codec->private_data; unsigned int aif1 = snd_soc_read(codec, WM9081_AUDIO_INTERFACE_1); aif1 &= ~(WM9081_AIFDAC_TDM_SLOT_MASK | WM9081_AIFDAC_TDM_MODE_MASK); - if (slots < 1 || slots > 4) + if (slots < 0 || slots > 4) return -EINVAL; + wm9081->tdm_width = slot_width; + + if (slots == 0) + slots = 1; + aif1 |= (slots - 1) << WM9081_AIFDAC_TDM_MODE_SHIFT; switch (rx_mask) { |