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authorJyri Sarha <jsarha@ti.com>2016-03-31 15:35:59 +0200
committerMark Brown <broonie@kernel.org>2016-04-06 23:33:38 +0200
commit4a462ce084d5beb92cfc68f53f88c035c82e6b59 (patch)
tree94bc44f52b16b71c5abc2046220ddcc7187e23ac
parentALSA: pcm: add IEC958 channel status helper for hw_params (diff)
downloadlinux-4a462ce084d5beb92cfc68f53f88c035c82e6b59.tar.xz
linux-4a462ce084d5beb92cfc68f53f88c035c82e6b59.zip
ALSA: pcm: Allow 32 bit sample format in IEC958 channel status helper
Treat 32 bit sample width as if it was 24 bits when generating IEC958 channel status bits. On some platforms 24 sample width is problematic and to get full 24 bit precision a 32 bit format, using only the 24 most significant bits, may have to be used. Signed-off-by: Jyri Sarha <jsarha@ti.com> Reviewed-by: Takashi Iwai <tiwai@suse.de> Signed-off-by: Mark Brown <broonie@kernel.org>
-rw-r--r--sound/core/pcm_iec958.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/sound/core/pcm_iec958.c b/sound/core/pcm_iec958.c
index e016871a978f..5e6aed64f451 100644
--- a/sound/core/pcm_iec958.c
+++ b/sound/core/pcm_iec958.c
@@ -59,6 +59,7 @@ static int create_iec958_consumer(uint rate, uint sample_width,
IEC958_AES4_CON_MAX_WORDLEN_24;
break;
case 24:
+ case 32: /* Assume 24-bit width for 32-bit samples. */
ws = IEC958_AES4_CON_WORDLEN_24_20 |
IEC958_AES4_CON_MAX_WORDLEN_24;
break;