6ce8f31667
[Why] The drm_audio_component can be used to give pin ELD notifications directly to the sound driver. This fixes audio endpoints disappearing due to missing unsolicited notifications. [How] Send the notification via the audio component whenever we enable or disable audio state on a stream. This matches what i915 does with their drm_audio_component and what Takashi Iwai's proposed hack for radeon/amdpgu did. This is a bit delayed in when the notification actually occurs, however. We wait until after all the programming is complete rather than sending the notification mid sequence. Particular care is needed for the get ELD callback since it can happen outside the locking and fencing DRM does for atomic commits. Cc: Leo Li <sunpeng.li@amd.com> Cc: Harry Wentland <harry.wentland@amd.com> Signed-off-by: Nicholas Kazlauskas <nicholas.kazlauskas@amd.com> Reviewed-by: Alex Deucher <alexander.deucher@amd.com> Reviewed-by: Takashi Iwai <tiwai@suse.de> Signed-off-by: Alex Deucher <alexander.deucher@amd.com> |
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