Hi Kuninori,
On 8/18/2020 10:53 AM, Kuninori Morimoto wrote:
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Hi again
PCM devices are created for FE dai links with 'no-pcm' flag as '0'. Such DAI links have CPU component which implement either pcm_construct() or pcm_new() at component or dai level respectively. Based on this, current patch exposes a helper function to identify such components and populate 'no_pcm' flag for DPCM DAI link.
This helps to have BE<->BE component links where PCM devices need not be created for CPU component involved in such links.
Signed-off-by: Sameer Pujar spujar@nvidia.com
(snip)
+static bool soc_component_is_pcm(struct snd_soc_dai_link_component *dlc) +{
struct snd_soc_dai *dai = snd_soc_find_dai(dlc);if (dai && (dai->component->driver->pcm_construct ||dai->driver->pcm_new))return true;return false;+}
This snd_soc_find_dai() will indicate WARNING if .config has CONFIG_LOCKDEP for me.
Maybe implement it at soc-core.c with client_mutex lock is needed.
Thank you for testing this. I will update this in next revision.
Thank you for your help !!
Best regards
Kuninori Morimoto