[PATCH] ALSA: hda/hdmi: Consider ELD is invalid when no SAD is present

[Takashi Iwai]

On Thu, 02 Dec 2021 08:33:35 +0100,
Kai-Heng Feng wrote:
> 
> There's a system that reports a bogus HDMI audio interface:
> $ cat eld#2.0
> monitor_present         1
> eld_valid               1
> monitor_name
> connection_type         DisplayPort
> eld_version             [0x2] CEA-861D or below
> edid_version            [0x3] CEA-861-B, C or D
> manufacture_id          0xe430
> product_id              0x690
> port_id                 0x0
> support_hdcp            0
> support_ai              0
> audio_sync_delay        0
> speakers                [0xffff] FL/FR LFE FC RL/RR RC FLC/FRC RLC/RRC FLW/FRW FLH/FRH TC FCH
> sad_count               0
> 
> Since playing audio is not possible without SAD, also consider ELD is
> invalid for this case.
> 
> Signed-off-by: Kai-Heng Feng <kai.heng.feng at canonical.com>

Thanks, applied.


Takashi