drm/panfrost: Add PM runtime flag

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When the GPU is the only device attached to a single power domain,
core genpd disable and enable it when gpu enter and leave runtime suspend.

Some power-domain requires a sequence before disabled,
and the reverse when enabled.

Add GPU_PM_RT flag, and implement in
panfrost_device_runtime_suspend/resume.

Reviewed-by: Steven Price <steven.price@arm.com>
Signed-off-by: Philippe Simons <simons.philippe@gmail.com>
Signed-off-by: Steven Price <steven.price@arm.com>
Link: https://lore.kernel.org/r/20250403055210.54486-2-simons.philippe@gmail.com

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Philippe Simons 2025-04-03 07:52:08 +02:00 • committed by Steven Price

parent a22e0051f9

commit d76ebdf4aa

2 changed files with 36 additions and 0 deletions

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33

drivers/gpu/drm/panfrost/panfrost_device.c

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3

drivers/gpu/drm/panfrost/panfrost_device.h

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