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[2/2] ASoC: omap-hdmi-audio: Set buffer bytes step constraint to 128

Message ID 041db517d2b5313648e20536a3fc0b13d4a72d09.1440594174.git.jsarha@ti.com (mailing list archive)
State New, archived
Headers show

Commit Message

Jyri Sarha Aug. 26, 2015, 1:11 p.m. UTC 
Set buffer bytes step constraint to 128. A matching constraint has
already been set to period size. This helps PCM setup to tolerate ALSA
clients that set the PCM hw params in unusual order.

Signed-off-by: Jyri Sarha <jsarha@ti.com>
---
 sound/soc/omap/omap-hdmi-audio.c | 10 +++++++++-
 1 file changed, 9 insertions(+), 1 deletion(-)
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Patch

diff --git a/sound/soc/omap/omap-hdmi-audio.c b/sound/soc/omap/omap-hdmi-audio.c
index aeef25c..584b237 100644
--- a/sound/soc/omap/omap-hdmi-audio.c
+++ b/sound/soc/omap/omap-hdmi-audio.c
@@ -81,7 +81,15 @@  static int hdmi_dai_startup(struct snd_pcm_substream *substream,
 	ret = snd_pcm_hw_constraint_step(substream->runtime, 0,
 					 SNDRV_PCM_HW_PARAM_PERIOD_BYTES, 128);
 	if (ret < 0) {
-		dev_err(dai->dev, "could not apply constraint\n");
+		dev_err(dai->dev, "Could not apply period constraint: %d\n",
+			ret);
+		return ret;
+	}
+	ret = snd_pcm_hw_constraint_step(substream->runtime, 0,
+					 SNDRV_PCM_HW_PARAM_BUFFER_BYTES, 128);
+	if (ret < 0) {
+		dev_err(dai->dev, "Could not apply buffer constraint: %d\n",
+			ret);
 		return ret;
 	}