drm/panfrost: Prevent division by 0

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When updating and debug-printing devfreq stats, in the very unlikely
off-chance that total device time is less than 100 ns, division by 0
would happen. Fix the divisor when relevant and rearrange operands.

Reported-by: Claude <noreply@anthropic.com>
Closes: https://gitlab.freedesktop.org/panfrost/linux/-/work_items/88
Fixes: f3ba91228e ("drm/panfrost: Add initial panfrost driver")
Reviewed-by: Steven Price <steven.price@arm.com>
Reviewed-by: Boris Brezillon <boris.brezillon@collabora.com>
Link: https://patch.msgid.link/20260820-b4-panfrost-fixes-v1-2-1b2c2376f4bc@collabora.com
Signed-off-by: Adrián Larumbe <adrian.larumbe@collabora.com>

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Adrián Larumbe 2026-08-20 15:04:48 +01:00

parent a34340574b

commit fd4227f035

1 changed files with 1 additions and 1 deletions

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drivers/gpu/drm/panfrost/panfrost_devfreq.c

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