drm/vc4: hdmi: Clear unused infoframe packet RAM registers

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Using a hdmi analyser the bytes in packet ram
registers beyond the length were visible in the
infoframes and it flagged the checksum as invalid.

Zeroing unused words of packet RAM avoids this

Fixes: 21317b3fba ("drm/vc4: Set up the AVI and SPD infoframes.")
Signed-off-by: Dom Cobley <popcornmix@gmail.com>
Link: https://lore.kernel.org/r/20220613144800.326124-20-maxime@cerno.tech
Signed-off-by: Maxime Ripard <maxime@cerno.tech>

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Dom Cobley 2022-06-13 16:47:46 +02:00 • committed by Maxime Ripard

parent 25eb441d55

commit b6079d1578

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drivers/gpu/drm/vc4/vc4_hdmi.c

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