[alsa-devel] Applied "ASoC: omap-hdmi-audio: Set buffer bytes step constraint to 128" to the asoc tree

[Mark Brown]

The patch

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

has been applied to the asoc tree at

   git://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound.git 

All being well this means that it will be integrated into the linux-next
tree (usually sometime in the next 24 hours) and sent to Linus during
the next merge window (or sooner if it is a bug fix), however if
problems are discovered then the patch may be dropped or reverted.  

You may get further e-mails resulting from automated or manual testing
and review of the tree, please engage with people reporting problems and
send followup patches addressing any issues that are reported if needed.

If any updates are required or you are submitting further changes they
should be sent as incremental updates against current git, existing
patches will not be replaced.

Please add any relevant lists and maintainers to the CCs when replying
to this mail.

Thanks,
Mark

>From 7d40acc38be55abb095f517e4e3a634818bc5253 Mon Sep 17 00:00:00 2001
From: Jyri Sarha <jsarha at ti.com>
Date: Wed, 26 Aug 2015 16:11:40 +0300
Subject: [PATCH] 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 at ti.com>
Signed-off-by: Mark Brown <broonie at kernel.org>
---
 sound/soc/omap/omap-hdmi-audio.c | 10 +++++++++-
 1 file changed, 9 insertions(+), 1 deletion(-)

diff --git a/sound/soc/omap/omap-hdmi-audio.c b/sound/soc/omap/omap-hdmi-audio.c
index aeef25c0cb3d..584b2372339e 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;
 	}
 
-- 
2.5.0