Messages in this thread Patch in this message | | | Date | Wed, 29 Aug 2007 23:28:12 -0400 | From | Andres Salomon <> | Subject | [PATCH 1/5] ALSA: cs5535audio: correctly set dma->substream |
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We're never actually setting dma->substream to the current substream; that means the dma->substream checks that we do in the suspend/resume path are never satisfied, and the PRD registers are never correctly managed. This changes it so that we set the substream when constructing the specific bus master DMA, and unsetting it when we tear down the BM's DMA.
Signed-off-by: Andres Salomon <dilinger@debian.org> ---
sound/pci/cs5535audio/cs5535audio_pcm.c | 2 ++ 1 files changed, 2 insertions(+), 0 deletions(-)
diff --git a/sound/pci/cs5535audio/cs5535audio_pcm.c b/sound/pci/cs5535audio/cs5535audio_pcm.c index 5450a9e..e61f972 100644 --- a/sound/pci/cs5535audio/cs5535audio_pcm.c +++ b/sound/pci/cs5535audio/cs5535audio_pcm.c @@ -164,6 +164,7 @@ static int cs5535audio_build_dma_packets(struct cs5535audio *cs5535au, jmpprd_addr = cpu_to_le32(lastdesc->addr + (sizeof(struct cs5535audio_dma_desc)*periods)); + dma->substream = substream; dma->period_bytes = period_bytes; dma->periods = periods; spin_lock_irq(&cs5535au->reg_lock); @@ -241,6 +242,7 @@ static void cs5535audio_clear_dma_packets(struct cs5535audio *cs5535au, { snd_dma_free_pages(&dma->desc_buf); dma->desc_buf.area = NULL; + dma->substream = NULL; } static int snd_cs5535audio_hw_params(struct snd_pcm_substream *substream, - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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