drm/nouveau/tegra: Avoid pulsing reset twice

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When the GPU powergate is controlled by a generic power domain provider,
the reset will automatically be asserted and deasserted as part of the
power-ungating procedure.

On some Jetson TX2 boards, doing an additional assert and deassert of
the GPU outside of the power-ungate procedure can cause the GPU to go
into a bad state where the memory interface can no longer access system
memory.

Signed-off-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>

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Thierry Reding 2019-12-09 13:00:01 +01:00 • committed by Ben Skeggs

parent f1331ea8ee

commit b0b651aedb

1 changed files with 6 additions and 6 deletions

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drivers/gpu/drm/nouveau/nvkm/engine/device/tegra.c

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