On Thu, Dec 5, 2019 at 6:11 AM Pierre-Louis Bossart pierre-louis.bossart@linux.intel.com wrote:
On 12/4/19 5:29 PM, Sridharan, Ranjani wrote:
On Wed, Dec 4, 2019 at 7:16 AM Daniel Baluta daniel.baluta@nxp.com wrote:
When converting a normal link to a DPCM link we need to set dpcm_playback / dpcm_capture otherwise playback/capture streams will not be created resulting in errors like this:
[ 36.039111] sai1-wm8960-hifi: ASoC: no backend playback stream
Fixes: a655de808cbde ("ASoC: core: Allow topology to override machine driver FE DAI link config") Signed-off-by: Daniel Baluta daniel.baluta@nxp.com
sound/soc/soc-core.c | 2 ++ 1 file changed, 2 insertions(+)
diff --git a/sound/soc/soc-core.c b/sound/soc/soc-core.c index 977a7bfad519..f89cf9d0860c 100644 --- a/sound/soc/soc-core.c +++ b/sound/soc/soc-core.c @@ -1872,6 +1872,8 @@ static void soc_check_tplg_fes(struct snd_soc_card *card)
/* convert non BE into BE */ dai_link->no_pcm = 1;
dai_link->dpcm_playback = 1;dai_link->dpcm_capture = 1;Hi Daniel,
Typically, for Intel platforms, this information comes from the machine driver and there are some DAI links that have either playback or capture set. But this change would set both for all DAI links. Not sure if this is the right thing to do.
I am with Ranjani, I don't get why we'd set the full-duplex mode by default. but to be honest I never quite understood what this code is supposed to do...
Indeed I need to figure out when exactly to enable playback/capture. I was hoping Liam will chime in, as this was in the original patch he sent months ago.