drm/vc4: hvs: Enable SCALER_CONTROL early in HVS init

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Always enable SCALER_CONTROL before attempting other HVS
operations. It's safe to write to some parts of the HVS but
in general it's dangerous to do this because it can cause bus
lockups.

Signed-off-by: Tim Gover <tim.gover@raspberrypi.com>
Reviewed-by: Maxime Ripard <mripard@kernel.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20240621152055.4180873-31-dave.stevenson@raspberrypi.com
Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>

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Tim Gover 2024-06-21 16:20:54 +01:00 • committed by Dave Stevenson

parent 8e7eb0c54a

commit 886a79237e

1 changed files with 8 additions and 6 deletions

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drivers/gpu/drm/vc4/vc4_hvs.c

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