From: Robert Hancock Date: Thu, 8 Oct 2009 02:19:21 +0000 (-0600) Subject: ALSA: ice1724: increase SPDIF and independent stereo buffer sizes X-Git-Tag: next-20110726~34^2~1043^2 X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=3996b482af72ce2c315a6dba3f8a7c2194ea6653;p=karo-tx-linux.git ALSA: ice1724: increase SPDIF and independent stereo buffer sizes Increase the default and maximum PCM buffer prellocation size for ice1724's SPDIF and independent stereo pair outputs to 256K, which is the hardware's maximum supported size. This allows a reduction in interrupt rate and potentially power usage when an application is not latency-critical. Signed-off-by: Robert Hancock Signed-off-by: Takashi Iwai --- diff --git a/sound/pci/ice1712/ice1724.c b/sound/pci/ice1712/ice1724.c index c24f268f63a8..76b717dae4b6 100644 --- a/sound/pci/ice1712/ice1724.c +++ b/sound/pci/ice1712/ice1724.c @@ -1294,7 +1294,7 @@ static int __devinit snd_vt1724_pcm_spdif(struct snd_ice1712 *ice, int device) snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV, snd_dma_pci_data(ice->pci), - 64*1024, 64*1024); + 256*1024, 256*1024); ice->pcm = pcm; @@ -1408,7 +1408,7 @@ static int __devinit snd_vt1724_pcm_indep(struct snd_ice1712 *ice, int device) snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV, snd_dma_pci_data(ice->pci), - 64*1024, 64*1024); + 256*1024, 256*1024); ice->pcm_ds = pcm;