Currently DAI playback and capture widgets are created during soc_probe_codec and soc_probe_platform, using the device associated with the DAI to check which widgets should be created. If a device registers both a CODEC and platform driver this leads the CODEC playback and capture widgets being overwritten by the widgets created by the platform probe.
It is more sensible to retain the CODEC widgets as the most common use case for registering both a CODEC and platform driver on the same chip is a CODEC which contains a DSP for compressed playback. In this situation it is more sensible to attach the routing information to the CODEC and add a thin platform driver interface to link into the compressed API.
So this patch will check for existing widgets during soc_probe_platform and only create new widgets if no existing ones exist.
Signed-off-by: Charles Keepax ckeepax@opensource.wolfsonmicro.com --- sound/soc/soc-core.c | 3 ++- 1 files changed, 2 insertions(+), 1 deletions(-)
diff --git a/sound/soc/soc-core.c b/sound/soc/soc-core.c index 04af2a6..53efe1d 100644 --- a/sound/soc/soc-core.c +++ b/sound/soc/soc-core.c @@ -1159,7 +1159,8 @@ static int soc_probe_platform(struct snd_soc_card *card,
/* Create DAPM widgets for each DAI stream */ list_for_each_entry(dai, &dai_list, list) { - if (dai->dev != platform->dev) + if (dai->dev != platform->dev || + dai->playback_widget || dai->capture_widget) continue;
snd_soc_dapm_new_dai_widgets(&platform->dapm, dai);