diff options
| author |   Mark Brown <broonie@opensource.wolfsonmicro.com> | 2012-03-14 18:38:28 +0000 |
|---|---|---|
| committer | Mark Brown <broonie@opensource.wolfsonmicro.com> | 2012-03-14 20:37:29 +0000 |
| commit | 4eb98f45b77b00868dcebe4a0f00d2a36afd88c2 (patch) | |
| tree | e503c903701b7bab1d2d7ab3e12c32e5c0419bc6 /sound | |
| parent | ASoC: mx27vis-aic32x4: Convert it to platform driver (diff) | |
| download | linux-dev-4eb98f45b77b00868dcebe4a0f00d2a36afd88c2.tar.xz linux-dev-4eb98f45b77b00868dcebe4a0f00d2a36afd88c2.zip | |
ASoC: wm8996: Add 44.1kHz support
The WM8996 specification has been updated to specify 44.1kHz as a supported
sample rate. Update the driver to accept this configuration.
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Diffstat (limited to 'sound')
| -rw-r--r-- | sound/soc/codecs/wm8996.c | 19 |
1 files changed, 10 insertions, 9 deletions
diff --git a/sound/soc/codecs/wm8996.c b/sound/soc/codecs/wm8996.c index 40a124c9f15d..1fd635494045 100644 --- a/sound/soc/codecs/wm8996.c +++ b/sound/soc/codecs/wm8996.c @@ -1914,7 +1914,7 @@ static int wm8996_hw_params(struct snd_pcm_substream *substream, { struct snd_soc_codec *codec = dai->codec; struct wm8996_priv *wm8996 = snd_soc_codec_get_drvdata(codec); - int bits, i, bclk_rate; + int bits, i, bclk_rate, best; int aifdata = 0; int lrclk = 0; int dsp = 0; @@ -1963,14 +1963,11 @@ static int wm8996_hw_params(struct snd_pcm_substream *substream, return bits; aifdata |= (bits << WM8996_AIF1TX_WL_SHIFT) | bits; + best = 0; for (i = 0; i < ARRAY_SIZE(dsp_divs); i++) { - if (dsp_divs[i] == params_rate(params)) - break; - } - if (i == ARRAY_SIZE(dsp_divs)) { - dev_err(codec->dev, "Unsupported sample rate %dHz\n", - params_rate(params)); - return -EINVAL; + if (abs(dsp_divs[i] - params_rate(params)) < + abs(dsp_divs[best] - params_rate(params))) + best = i; } dsp |= i << dsp_shift; @@ -2030,13 +2027,16 @@ static int wm8996_set_sysclk(struct snd_soc_dai *dai, } switch (wm8996->sysclk) { + case 5644800: case 6144000: snd_soc_update_bits(codec, WM8996_AIF_RATE, WM8996_SYSCLK_RATE, 0); break; + case 22579200: case 24576000: ratediv = WM8996_SYSCLK_DIV; wm8996->sysclk /= 2; + case 11289600: case 12288000: snd_soc_update_bits(codec, WM8996_AIF_RATE, WM8996_SYSCLK_RATE, WM8996_SYSCLK_RATE); @@ -3060,7 +3060,8 @@ static struct snd_soc_codec_driver soc_codec_dev_wm8996 = { }; #define WM8996_RATES (SNDRV_PCM_RATE_8000 | SNDRV_PCM_RATE_16000 |\ - SNDRV_PCM_RATE_32000 | SNDRV_PCM_RATE_48000) + SNDRV_PCM_RATE_32000 | SNDRV_PCM_RATE_44100 |\ + SNDRV_PCM_RATE_48000) #define WM8996_FORMATS (SNDRV_PCM_FMTBIT_S8 | SNDRV_PCM_FMTBIT_S16_LE |\ SNDRV_PCM_FMTBIT_S20_3LE | SNDRV_PCM_FMTBIT_S24_LE |\ SNDRV_PCM_FMTBIT_S32_LE) |