drm/vc4: hvs: Boost the core clock during modeset

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In order to prevent timeouts and stalls in the pipeline, the core clock
needs to be maxed at 500MHz during a modeset on the BCM2711.

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/37ed9e0124c5cce005ddc8dafe821d8b0da036ff.1599120059.git-series.maxime@cerno.tech

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Maxime Ripard 2020-09-03 10:00:35 +02:00

parent c54619b0bf

commit d7d96c00e5

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2

drivers/gpu/drm/vc4/vc4_drv.h

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18

drivers/gpu/drm/vc4/vc4_hvs.c

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9

drivers/gpu/drm/vc4/vc4_kms.c

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