[alsa-devel] [PATCH 3/3] ASoC: pcm: Use wildcard msbits constraints

[Lars-Peter Clausen]

Use the new wildcard msbits constraints instead of installing a constraint
for each available sample format width.

Signed-off-by: Lars-Peter Clausen <lars at metafoo.de>
---
 sound/soc/soc-pcm.c | 24 ++++--------------------
 1 file changed, 4 insertions(+), 20 deletions(-)

diff --git a/sound/soc/soc-pcm.c b/sound/soc/soc-pcm.c
index eb87d96..d62d6a5 100644
--- a/sound/soc/soc-pcm.c
+++ b/sound/soc/soc-pcm.c
@@ -301,15 +301,6 @@ static bool soc_pcm_has_symmetry(struct snd_pcm_substream *substream)
 	return symmetry;
 }
 
-/*
- * List of sample sizes that might go over the bus for parameter
- * application.  There ought to be a wildcard sample size for things
- * like the DAC/ADC resolution to use but there isn't right now.
- */
-static int sample_sizes[] = {
-	24, 32,
-};
-
 static void soc_pcm_set_msb(struct snd_pcm_substream *substream, int bits)
 {
 	struct snd_soc_pcm_runtime *rtd = substream->private_data;
@@ -318,17 +309,10 @@ static void soc_pcm_set_msb(struct snd_pcm_substream *substream, int bits)
 	if (!bits)
 		return;
 
-	for (i = 0; i < ARRAY_SIZE(sample_sizes); i++) {
-		if (bits >= sample_sizes[i])
-			continue;
-
-		ret = snd_pcm_hw_constraint_msbits(substream->runtime, 0,
-						   sample_sizes[i], bits);
-		if (ret != 0)
-			dev_warn(rtd->dev,
-				 "ASoC: Failed to set MSB %d/%d: %d\n",
-				 bits, sample_sizes[i], ret);
-	}
+	ret = snd_pcm_hw_constraint_msbits(substream->runtime, 0, 0, bits);
+	if (ret != 0)
+		dev_warn(rtd->dev, "ASoC: Failed to set MSB %d: %d\n",
+				 bits, ret);
 }
 
 static void soc_pcm_apply_msb(struct snd_pcm_substream *substream)
-- 
1.8.0