[alsa-devel] [PATCH] ALSA: Add params_width() helper

[Mark Brown]

From: Mark Brown <broonie at linaro.org>

Add a helper for obtaining the width of a format directly from params
since this is expected to become a common operation in ASoC.

Signed-off-by: Mark Brown <broonie at linaro.org>
---

Just starting on the ASoC changes to use this; I'm not 100% sure on the
lack of prefixing for the name but it's consistent with the other uses
so...

 include/sound/pcm_params.h | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/include/sound/pcm_params.h b/include/sound/pcm_params.h
index 37ae12e..47b03b4 100644
--- a/include/sound/pcm_params.h
+++ b/include/sound/pcm_params.h
@@ -354,4 +354,10 @@ params_period_bytes(const struct snd_pcm_hw_params *p)
 		params_channels(p)) / 8;
 }
 
+static inline unsigned int
+params_width(const struct snd_pcm_hw_params *p)
+{
+	return snd_pcm_format_width(params_format(p));
+}
+
 #endif /* __SOUND_PCM_PARAMS_H */
-- 
1.8.5.2