path: root/drivers/staging/intel_sst/intelmid.c
diff options
authorWu Fengguang <wfg@linux.intel.com>2011-05-03 17:35:31 +0100
committerGreg Kroah-Hartman <gregkh@suse.de>2011-05-10 12:58:43 -0700
commita4820502949b8e81fba83c98704e1af8806c5a98 (patch)
tree0f7fc540fe11445271a18c773a92b024899884f4 /drivers/staging/intel_sst/intelmid.c
parent3ca13bdb3c79e8a5e79ddeddacdae3bd4611ab5d (diff)
intel_sst: MRST can only do 16bit recording
Fix bug $ arecord -D dsnoop -r 48000 -f S16_LE 1.wav ALSA lib pcm_direct.c:980:(snd1_pcm_direct_initialize_slave) unable to install hw params ALSA lib pcm_dsnoop.c:604:(snd_pcm_dsnoop_open) unable to initialize slave arecord: main:654: audio open error: Interrupted system call Root cause is, the driver is reporting 32-bit capture capability that is not supported by the MRST hardware. So the dsnoop plugin end up requesting 32-bit capture which fails. Signed-off-by: Wu Fengguang <fengguang.wu@intel.com> Signed-off-by: Alan Cox <alan@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'drivers/staging/intel_sst/intelmid.c')
1 files changed, 4 insertions, 1 deletions
diff --git a/drivers/staging/intel_sst/intelmid.c b/drivers/staging/intel_sst/intelmid.c
index 0b9b1b64c9c..cbe09f2bde3 100644
--- a/drivers/staging/intel_sst/intelmid.c
+++ b/drivers/staging/intel_sst/intelmid.c
@@ -339,8 +339,11 @@ static int snd_intelmad_open(struct snd_pcm_substream *substream,
* MRST firmware currently denies stereo recording requests.
- if (substream->stream == SNDRV_PCM_STREAM_CAPTURE)
+ if (substream->stream == SNDRV_PCM_STREAM_CAPTURE) {
+ runtime->hw.formats = (SNDRV_PCM_FMTBIT_S16 |
runtime->hw.channels_max = 1;
+ }
if (intelmaddata->cpu_id == CPU_CHIP_PENWELL) {
runtime->hw = snd_intelmad_stream;