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| author | Takashi Iwai <tiwai@suse.de> | 2009-04-06 03:47:20 +0200 |
|---|---|---|
| committer | Takashi Iwai <tiwai@suse.de> | 2009-04-06 03:47:20 +0200 |
| commit | b114701c0e8d580a05643c874d87e2501ab729cb (patch) | |
| tree | a4e69cc865b9b76b6737d0d8b8dc81fc40c1e88f /sound/soc/pxa/pxa-ssp.c | |
| parent | Merge branch 'audit.b62' of git://git.kernel.org/pub/scm/linux/kernel/git/vir... (diff) | |
| parent | ASoC: TWL4030: Add actual support for 96KHz playback support (diff) | |
| download | linux-b114701c0e8d580a05643c874d87e2501ab729cb.tar.xz linux-b114701c0e8d580a05643c874d87e2501ab729cb.zip | |
Merge branch 'topic/asoc' into for-linus
Diffstat (limited to 'sound/soc/pxa/pxa-ssp.c')
| -rw-r--r-- | sound/soc/pxa/pxa-ssp.c | 12 |
1 files changed, 9 insertions, 3 deletions
diff --git a/sound/soc/pxa/pxa-ssp.c b/sound/soc/pxa/pxa-ssp.c index 7acd3febf8b0..308a657928d2 100644 --- a/sound/soc/pxa/pxa-ssp.c +++ b/sound/soc/pxa/pxa-ssp.c @@ -627,12 +627,18 @@ static int pxa_ssp_hw_params(struct snd_pcm_substream *substream, u32 sscr0; u32 sspsp; int width = snd_pcm_format_physical_width(params_format(params)); + int ttsa = ssp_read_reg(ssp, SSTSA) & 0xf; /* select correct DMA params */ if (substream->stream != SNDRV_PCM_STREAM_PLAYBACK) dma = 1; /* capture DMA offset is 1,3 */ - if (chn == 2) - dma += 2; /* stereo DMA offset is 2, mono is 0 */ + /* Network mode with one active slot (ttsa == 1) can be used + * to force 16-bit frame width on the wire (for S16_LE), even + * with two channels. Use 16-bit DMA transfers for this case. + */ + if (((chn == 2) && (ttsa != 1)) || (width == 32)) + dma += 2; /* 32-bit DMA offset is 2, 16-bit is 0 */ + cpu_dai->dma_data = ssp_dma_params[cpu_dai->id][dma]; dev_dbg(&ssp->pdev->dev, "pxa_ssp_hw_params: dma %d\n", dma); @@ -712,7 +718,7 @@ static int pxa_ssp_hw_params(struct snd_pcm_substream *substream, /* When we use a network mode, we always require TDM slots * - complain loudly and fail if they've not been set up yet. */ - if ((sscr0 & SSCR0_MOD) && !(ssp_read_reg(ssp, SSTSA) & 0xf)) { + if ((sscr0 & SSCR0_MOD) && !ttsa) { dev_err(&ssp->pdev->dev, "No TDM timeslot configured\n"); return -EINVAL; } |