drm/i915: Avoid setting ring freq on invalid rps freqs

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Looping through rps frequencies when both min and max are zero
ends up into an endless loop. This can happen during hardware
enablement.

Bail out early if rps frequencies are not correctly set yet.

Cc: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Mika Kuoppala <mika.kuoppala@linux.intel.com>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Link: https://patchwork.freedesktop.org/patch/msgid/20180320151734.11761-1-mika.kuoppala@linux.intel.com

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Mika Kuoppala 2018-03-20 17:17:33 +02:00

parent 0f36a85c3b

commit 66c1f77ae2

1 changed files with 6 additions and 3 deletions

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drivers/gpu/drm/i915/intel_pm.c

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