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ASoC: imx: use more robust checking of available streams 

Replace the channels_min check with a check for the relevant substream
being present. Suggested here [1] when mxs implemented the
audio-support.

[1] http://www.spinics.net/lists/arm-kernel/msg133010.html

Signed-off-by: Wolfram Sang <w.sang@pengutronix.de>
Acked-by: Sascha Hauer <s.hauer@pengutronix.de>
Acked-by: Liam Girdwood <lrg@ti.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
This commit is contained in:
Wolfram Sang 2011-08-25 15:54:56 +02:00 committed by Mark Brown
parent d4ba7854c9
commit 35dcf58634
2 changed files with 7 additions and 8 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

11
sound/soc/imx/imx-pcm-fiq.c
View File

@ -243,23 +243,22 @@ static int imx_pcm_fiq_new(struct snd_soc_pcm_runtime *rtd)
struct snd_card *card = rtd->card->snd_card;
struct snd_soc_dai *dai = rtd->cpu_dai;
struct snd_pcm *pcm = rtd->pcm;
struct snd_pcm_substream *substream;
int ret;
ret = imx_pcm_new(rtd);
if (ret)
return ret;
if (dai->driver->playback.channels_min) {
struct snd_pcm_substream *substream =
pcm->streams[SNDRV_PCM_STREAM_PLAYBACK].substream;
substream = pcm->streams[SNDRV_PCM_STREAM_PLAYBACK].substream;
if (substream) {
struct snd_dma_buffer *buf = &substream->dma_buffer;
imx_ssi_fiq_tx_buffer = (unsigned long)buf->area;
}
if (dai->driver->capture.channels_min) {
struct snd_pcm_substream *substream =
pcm->streams[SNDRV_PCM_STREAM_CAPTURE].substream;
substream = pcm->streams[SNDRV_PCM_STREAM_CAPTURE].substream;
if (substream) {
struct snd_dma_buffer *buf = &substream->dma_buffer;
imx_ssi_fiq_rx_buffer = (unsigned long)buf->area;

4
sound/soc/imx/imx-ssi.c
View File

@ -399,14 +399,14 @@ int imx_pcm_new(struct snd_soc_pcm_runtime *rtd)
card->dev->dma_mask = &imx_pcm_dmamask;
if (!card->dev->coherent_dma_mask)
card->dev->coherent_dma_mask = DMA_BIT_MASK(32);
if (dai->driver->playback.channels_min) {
if (pcm->streams[SNDRV_PCM_STREAM_PLAYBACK].substream) {
ret = imx_pcm_preallocate_dma_buffer(pcm,
SNDRV_PCM_STREAM_PLAYBACK);
if (ret)
goto out;
}
if (dai->driver->capture.channels_min) {
if (pcm->streams[SNDRV_PCM_STREAM_CAPTURE].substream) {
ret = imx_pcm_preallocate_dma_buffer(pcm,
SNDRV_PCM_STREAM_CAPTURE);
if (ret)