drm/i915: Add audio pin sense / ELD callback

This callback will be called by the i915 driver to notify the hda
driver that its HDMI information needs to be refreshed, i e,
that audio output is now available (or unavailable) - usually as a
result of a monitor being plugged in (or unplugged).

Signed-off-by: David Henningsson <[email protected]>
Reviewed-by: Jani Nikula <[email protected]>
Acked-by: Daniel Vetter <[email protected]>
Signed-off-by: Takashi Iwai <[email protected]>
1 file changed