@@ -193,6 +193,9 @@ int snd_soc_dai_set_channel_map(struct snd_soc_dai *dai,
int snd_soc_dai_set_tristate(struct snd_soc_dai *dai, int tristate);
+int snd_soc_dai_prepare(struct snd_soc_dai *dai,
+ struct snd_pcm_substream *substream);
+
/* Digital Audio Interface mute */
int snd_soc_dai_digital_mute(struct snd_soc_dai *dai, int mute,
int direction);
@@ -360,6 +360,22 @@ int snd_soc_dai_set_tristate(struct snd_soc_dai *dai, int tristate)
}
EXPORT_SYMBOL_GPL(snd_soc_dai_set_tristate);
+int snd_soc_dai_prepare(struct snd_soc_dai *dai,
+ struct snd_pcm_substream *substream)
+{
+ int ret = 0;
+
+ if (!snd_soc_dai_stream_valid(dai, substream->stream))
+ return 0;
+
+ if (dai->driver->ops &&
+ dai->driver->ops->prepare)
+ ret = dai->driver->ops->prepare(substream, dai);
+
+ return soc_dai_ret(dai, ret);
+}
+EXPORT_SYMBOL_GPL(snd_soc_dai_prepare);
+
/**
* snd_soc_dai_digital_mute - configure DAI system or master clock.
* @dai: DAI
@@ -577,14 +593,9 @@ int snd_soc_pcm_dai_prepare(struct snd_pcm_substream *substream)
int i, ret;
for_each_rtd_dais(rtd, i, dai) {
- if (!snd_soc_dai_stream_valid(dai, substream->stream))
- continue;
- if (dai->driver->ops &&
- dai->driver->ops->prepare) {
- ret = dai->driver->ops->prepare(substream, dai);
- if (ret < 0)
- return soc_dai_ret(dai, ret);
- }
+ ret = snd_soc_dai_prepare(dai, substream);
+ if (ret < 0)
+ return ret;
}
return 0;
Add a new snd_soc_dai_prepare() which can be used (in an upcoming patch) by soc-dapm.c. Use this new function internally in snd_soc_pcm_dai_prepare() to avoid duplicating code. Suggested-by: Jerome Brunet <jbrunet@baylibre.com> Signed-off-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com> --- include/sound/soc-dai.h | 3 +++ sound/soc/soc-dai.c | 27 +++++++++++++++++++-------- 2 files changed, 22 insertions(+), 8 deletions(-)