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authorPeter Ujfalusi <peter.ujfalusi@ti.com>2011-05-12 12:04:55 +0200
committerLiam Girdwood <lrg@ti.com>2011-05-13 13:00:14 +0200
commitb417382419c67fda6463e02eafb8efebd5f8759e (patch)
treebb491c29f1fb5eaf5e3ae2737a38e8af1a7e27e1 /sound/soc/omap
parentMAINTAINERS: ASoC and Regulator email address change. (diff)
downloadlinux-b417382419c67fda6463e02eafb8efebd5f8759e.tar.xz
linux-b417382419c67fda6463e02eafb8efebd5f8759e.zip
ASoC: omap-pcm: Period wakeup disabling on OMAP2+
Allow disabling ALSA period wakeup interrupts. This can only be done on OMAP2+ (2/3/4), since there we can chain the DMA. Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com> Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Acked-by: Jarkko Nikula <jhnikula@gmail.com> Signed-off-by: Liam Girdwood <lrg@ti.com>
Diffstat (limited to 'sound/soc/omap')
-rw-r--r--sound/soc/omap/omap-pcm.c5
1 files changed, 3 insertions, 2 deletions
diff --git a/sound/soc/omap/omap-pcm.c b/sound/soc/omap/omap-pcm.c
index 0c6eb30e92b9..e6a6b991d05f 100644
--- a/sound/soc/omap/omap-pcm.c
+++ b/sound/soc/omap/omap-pcm.c
@@ -37,7 +37,8 @@ static const struct snd_pcm_hardware omap_pcm_hardware = {
SNDRV_PCM_INFO_MMAP_VALID |
SNDRV_PCM_INFO_INTERLEAVED |
SNDRV_PCM_INFO_PAUSE |
- SNDRV_PCM_INFO_RESUME,
+ SNDRV_PCM_INFO_RESUME |
+ SNDRV_PCM_INFO_NO_PERIOD_WAKEUP,
.formats = SNDRV_PCM_FMTBIT_S16_LE |
SNDRV_PCM_FMTBIT_S32_LE,
.period_bytes_min = 32,
@@ -195,7 +196,7 @@ static int omap_pcm_prepare(struct snd_pcm_substream *substream)
if ((cpu_is_omap1510()))
omap_enable_dma_irq(prtd->dma_ch, OMAP_DMA_FRAME_IRQ |
OMAP_DMA_LAST_IRQ | OMAP_DMA_BLOCK_IRQ);
- else
+ else if (!substream->runtime->no_period_wakeup)
omap_enable_dma_irq(prtd->dma_ch, OMAP_DMA_FRAME_IRQ);
if (!(cpu_class_is_omap1())) {