[ALSA] cmipci: add msbits constraint for 24-bit format
Add a msbits constraint to the SPDIF output device to indicate that
S32_LE samples use only 24 bits for data.
Signed-off-by: Clemens Ladisch <clemens@ladisch.de>
Signed-off-by: Jaroslav Kysela <perex@suse.cz>
diff --git a/sound/pci/cmipci.c b/sound/pci/cmipci.c
index a8d6b54..78a2398 100644
--- a/sound/pci/cmipci.c
+++ b/sound/pci/cmipci.c
@@ -1599,8 +1599,10 @@
return err;
if (cm->can_ac3_hw) {
runtime->hw = snd_cmipci_playback_spdif;
- if (cm->chip_version >= 37)
+ if (cm->chip_version >= 37) {
runtime->hw.formats |= SNDRV_PCM_FMTBIT_S32_LE;
+ snd_pcm_hw_constraint_msbits(runtime, 0, 32, 24);
+ }
if (cm->chip_version == 68) {
runtime->hw.rates |= SNDRV_PCM_RATE_88200 |
SNDRV_PCM_RATE_96000;