diff options
| author |   Philipp Zabel <philipp.zabel@gmail.com> | 2009-03-03 16:10:51 +0100 |
|---|---|---|
| committer |   Mark Brown <broonie@opensource.wolfsonmicro.com> | 2009-03-03 15:54:11 +0000 |
| commit | aa4ef01de5f2e7ed948b88f9f1cfc93c8e0c3f25 (patch) | |
| tree | c884e8e6554d5cd9684b0a9c4852c853ade6f5ed /sound/soc/pxa | |
| parent | ASoC: UDA1380: change decimator/interpolator register handling (diff) | |
| download | linux-dev-aa4ef01de5f2e7ed948b88f9f1cfc93c8e0c3f25.tar.xz linux-dev-aa4ef01de5f2e7ed948b88f9f1cfc93c8e0c3f25.zip | |
ASoC: Use network mode with 2 slots for 16-bit stereo in pxa-ssp/Zylonite
For consistency with 24-bit and 32-bit modes, don't send 16-bit stereo
in one 32-bit transfer. Use 2 slots instead on Zylonite. It should result
in exactly the same behaviour.
Now it is possible to use 16-bit single slot transfers in pxa-ssp, which
are needed for Magician to get two frame clock pulses per sample
(one for each channel).
Signed-off-by: Philipp Zabel <philipp.zabel@gmail.com>
Tested-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Diffstat (limited to 'sound/soc/pxa')
| -rw-r--r-- | sound/soc/pxa/pxa-ssp.c | 3 | ||||
| -rw-r--r-- | sound/soc/pxa/zylonite.c | 7 |
2 files changed, 6 insertions, 4 deletions
diff --git a/sound/soc/pxa/pxa-ssp.c b/sound/soc/pxa/pxa-ssp.c index 4a973ab710be..c49bb12b0a65 100644 --- a/sound/soc/pxa/pxa-ssp.c +++ b/sound/soc/pxa/pxa-ssp.c @@ -644,8 +644,7 @@ static int pxa_ssp_hw_params(struct snd_pcm_substream *substream, sscr0 |= SSCR0_FPCKE; #endif sscr0 |= SSCR0_DataSize(16); - if (params_channels(params) > 1) - sscr0 |= SSCR0_EDSS; + /* use network mode (2 slots) for 16 bit stereo */ break; case SNDRV_PCM_FORMAT_S24_LE: sscr0 |= (SSCR0_EDSS | SSCR0_DataSize(8)); diff --git a/sound/soc/pxa/zylonite.c b/sound/soc/pxa/zylonite.c index 0140a250db24..9f6116edbb84 100644 --- a/sound/soc/pxa/zylonite.c +++ b/sound/soc/pxa/zylonite.c @@ -127,8 +127,11 @@ static int zylonite_voice_hw_params(struct snd_pcm_substream *substream, if (ret < 0) return ret; - /* We're not really in network mode but the emulation wants this. */ - ret = snd_soc_dai_set_tdm_slot(cpu_dai, 1, 1); + /* Use network mode for stereo, one slot per channel. */ + if (params_channels(params) > 1) + ret = snd_soc_dai_set_tdm_slot(cpu_dai, 0x3, 2); + else + ret = snd_soc_dai_set_tdm_slot(cpu_dai, 1, 1); if (ret < 0) return ret; |