diff options
Diffstat (limited to 'sound/soc')
| -rw-r--r-- | sound/soc/codecs/wm8994.c | 18 | ||||
| -rw-r--r-- | sound/soc/codecs/wm8994.h | 1 |
2 files changed, 18 insertions, 1 deletions
diff --git a/sound/soc/codecs/wm8994.c b/sound/soc/codecs/wm8994.c index 2b2dadc54da..3fddc7ad112 100644 --- a/sound/soc/codecs/wm8994.c +++ b/sound/soc/codecs/wm8994.c @@ -1045,6 +1045,7 @@ static int aif1clk_ev(struct snd_soc_dapm_widget *w, struct snd_kcontrol *kcontrol, int event) { struct snd_soc_codec *codec = w->codec; + struct wm8994_priv *wm8994 = snd_soc_codec_get_drvdata(codec); struct wm8994 *control = codec->control_data; int mask = WM8994_AIF1DAC1L_ENA | WM8994_AIF1DAC1R_ENA; int i; @@ -1063,6 +1064,10 @@ static int aif1clk_ev(struct snd_soc_dapm_widget *w, switch (event) { case SND_SOC_DAPM_PRE_PMU: + /* Don't enable timeslot 2 if not in use */ + if (wm8994->channels[0] <= 2) + mask &= ~(WM8994_AIF1DAC2L_ENA | WM8994_AIF1DAC2R_ENA); + val = snd_soc_read(codec, WM8994_AIF1_CONTROL_1); if ((val & WM8994_AIF1ADCL_SRC) && (val & WM8994_AIF1ADCR_SRC)) @@ -2687,7 +2692,7 @@ static int wm8994_hw_params(struct snd_pcm_substream *substream, return -EINVAL; } - bclk_rate = params_rate(params) * 4; + bclk_rate = params_rate(params); switch (params_format(params)) { case SNDRV_PCM_FORMAT_S16_LE: bclk_rate *= 16; @@ -2708,6 +2713,17 @@ static int wm8994_hw_params(struct snd_pcm_substream *substream, return -EINVAL; } + wm8994->channels[id] = params_channels(params); + switch (params_channels(params)) { + case 1: + case 2: + bclk_rate *= 2; + break; + default: + bclk_rate *= 4; + break; + } + /* Try to find an appropriate sample rate; look for an exact match. */ for (i = 0; i < ARRAY_SIZE(srs); i++) if (srs[i].rate == params_rate(params)) diff --git a/sound/soc/codecs/wm8994.h b/sound/soc/codecs/wm8994.h index f142ec198db..ccbce5791e9 100644 --- a/sound/soc/codecs/wm8994.h +++ b/sound/soc/codecs/wm8994.h @@ -77,6 +77,7 @@ struct wm8994_priv { int sysclk_rate[2]; int mclk[2]; int aifclk[2]; + int channels[2]; struct wm8994_fll_config fll[2], fll_suspend[2]; struct completion fll_locked[2]; bool fll_locked_irq; |