[PATCH v2 1/3] ASoC: hdmi-codec: Add event handler for hdmi TX

[Mark Brown]

On Fri, Dec 06, 2024 at 03:39:15PM +0000, Jiaxin Yu (俞家鑫) wrote:
> On Mon, 2024-12-02 at 13:16 +0000, Mark Brown wrote:
> > On Sun, Dec 01, 2024 at 05:15:45PM +0000, Jiaxin Yu (俞家鑫) wrote:

> > > So I want to ask if I can do it by just adding
> > > SOC_DAPM_PIN_SWITCH("Speakers") and SOC_DAPM_PIN_SWITCH("HDMI")?
> > > Correspondingly, dapm widget and route path need to be added. That
> > > is
> > > "SND_SOC_DAPM_SPK("Speakers", NULL)/ SND_SOC_DAPM_LINE("HDMI1",
> > > NULL)"
> > > and "{"Speakers", NULL, "Speaker"}/ {"HDMI1", NULL, "TX"}".

> > Yes, that's what I'd expect to see.

> So if I open the "HDMI Switch" amixer control, it will call
> 'hdmi_codec_startup', which in turn calls "audio_startup()"  in
> 'hdmi_codec_ops'. Conversely, if I close it, it will call
> 'hdmi_codec_shutdown', which in turn calls 'audio_shutdown' in
> 'hdmi_codec_ops'. Is this understanding correct?

The audio stream will still run, the DAPM path attached to it will get
shut down.
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