drm/i915: Convert backlight_lock to a mutex

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Originally the irq safe spinlock was required because of asle
interrupts. But since

commit 91a60f2071
Author: Jani Nikula <jani.nikula@intel.com>
Date:   Thu Oct 31 18:55:48 2013 +0200

    drm/i915: move opregion asle request handling to a work queue

there's no need for this any more. So switch to the simpler mutex.

v2: Cite the right commit, spotted by Jani.

Cc: Jani Nikula <jani.nikula@intel.com>
Reviewed-by: Jani Nikula <jani.nikula@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>

...

This commit is contained in:

Daniel Vetter 2014-09-15 14:35:09 +02:00

parent 4dc49272bd

commit 07f11d49f1

3 changed files with 14 additions and 20 deletions

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2

drivers/gpu/drm/i915/i915_dma.c

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2

drivers/gpu/drm/i915/i915_drv.h

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30

drivers/gpu/drm/i915/intel_panel.c

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