ASoC: omap-hdmi-audio: Set buffer bytes step constraint to 128

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>
Signed-off-by: Mark Brown <broonie@kernel.org>

diff --git a/sound/soc/omap/omap-hdmi-audio.c b/sound/soc/omap/omap-hdmi-audio.c
index aeef25c..584b237 100644 (file)
--- 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;
        }