From: Jorge Eduardo Candelaria <jorge.candelaria@xxxxxx>
The Audio Backend needs a step size of 24 * 4, while HDMI requires a
step size of 32 * 4 bits to align the audio buffer.
Signed-off-by: Jorge Eduardo Candelaria <jorge.candelaria@xxxxxx>
Signed-off-by: Margarita Olaya Cabrera <magi.olaya@xxxxxx>
---
sound/soc/omap/omap-pcm.c | 9 +++++++++
1 files changed, 9 insertions(+), 0 deletions(-)
diff --git a/sound/soc/omap/omap-pcm.c b/sound/soc/omap/omap-pcm.c
index 8caeb8d..6a21447 100644
--- a/sound/soc/omap/omap-pcm.c
+++ b/sound/soc/omap/omap-pcm.c
@@ -280,6 +280,15 @@ static int omap_pcm_open(struct snd_pcm_substream *substream)
if (ret < 0)
goto out;
+ /*
+ * ABE needs a step of 24 * 4 data bits, and HDMI 32 * 4
+ * Ensure buffer size satisfies both constraints.
+ */
+ ret = snd_pcm_hw_constraint_step(runtime, 0,
+ SNDRV_PCM_HW_PARAM_BUFFER_BYTES, 384);
+ if (ret < 0)
+ goto out;
+
prtd = kzalloc(sizeof(*prtd), GFP_KERNEL);
if (prtd == NULL) {
ret = -ENOMEM;
--
1.7.0.4
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