(subset) [PATCH] drm/vc4: hdmi: Don't try disabling SCDC on Pi0-3.

[Maxime Ripard]

On Thu, 27 Jan 2022 14:45:59 +0100, Maxime Ripard wrote:
> From: Dave Stevenson <dave.stevenson at raspberrypi.com>
> 
> The code that set the scdc_enabled flag to ensure it was
> disabled at boot time also ran on Pi0-3 where there is no
> SCDC support. This lead to a warning in vc4_hdmi_encoder_post_crtc_disable
> due to vc4_hdmi_disable_scrambling being called and trying to
> read (and write) register HDMI_SCRAMBLER_CTL which doesn't
> exist on those platforms.
> 
> [...]

Applied to drm/drm-misc (drm-misc-fixes).

Thanks!
Maxime