drm/radeon: Add HD-audio component notifier support

This patch introduces the HDMI audio component binding like what i915
does to radeon driver.  Unlike i915, we need only the hotplug
notification and the ELD query, hence the code is relatively simple,
just adding the hook at radeon_audio_enable() and giving the eld query
by copying the connector->eld contents.

Acked-by: Jim Qu <Jim.Qu@amd.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
3 files changed