On Mon, Dec 05, 2022 at 09:34:17AM +0000, Jiaxin Yu (俞家鑫) wrote: > 1. I have added a DAPM widget that is "SDB", when we open or close HDMI > PIN_SWITCH, the callback 'hdmi_tx_event' registered in the widget will > be triggered. Maybe you mean I shouldn't use SNDRV_PCM_TRIGGER_START > and SNDRV_PCM_TRIGGER_STOP? No, I mean that if you want to control the enable and disable of the output path you should implement a DAPM widget. > 2. If I don't use hcd.ops->trigger notifies the bridge ic driver to > switch the audio, which ops should I use? > I actually want to know hdmi-codec.c and it6505.c except > hdmi_codec_ops, is there any other way to communicate? Like I said you should use the event on the DAPM widget. This will require providing operations for the events to the drivers.
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