Files
linux/drivers/gpu/drm
Dave Stevenson 71702c495b drm/vc4: hdmi: Don't try disabling SCDC on Pi0-3.
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.

Only set the flag should the interface be configured to support
more than HDMI 1.4.

Fixes: 1998646129 ("drm/vc4: hdmi: Introduce a scdc_enabled flag")
Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
Signed-off-by: Maxime Ripard <maxime@cerno.tech>
Link: https://patchwork.freedesktop.org/patch/msgid/20220127134559.292778-1-maxime@cerno.tech
2022-02-03 16:07:59 +01:00
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