drm/vc4: hvs: Make the stop_channel function public

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During the transition from the firmware to the KMS driver, we need to pay
particular attention to how we deal with the pixelvalves that have already
been enabled, otherwise either timeouts or stuck pixels can occur. We'll
thus need to call the function to stop an HVS channel at boot.

Signed-off-by: Maxime Ripard <maxime@cerno.tech>
Tested-by: Chanwoo Choi <cw00.choi@samsung.com>
Tested-by: Hoegeun Kwon <hoegeun.kwon@samsung.com>
Tested-by: Stefan Wahren <stefan.wahren@i2se.com>
Reviewed-by: Eric Anholt <eric@anholt.net>
Link: https://patchwork.freedesktop.org/patch/msgid/a9d5f0891c3bc1deb6b16d56ca6994ed912ec7c7.1599120059.git-series.maxime@cerno.tech

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Maxime Ripard 2020-09-03 10:01:04 +02:00

parent 9e30cfd076

commit 50e9d6cb5d

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1

drivers/gpu/drm/vc4/vc4_drv.h

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2

drivers/gpu/drm/vc4/vc4_hvs.c

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