drm/atomic-helpers: make mode_set hooks optional

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With runtime PM the hw might still be off while doing the ->mode_set
callbacks - runtime PM get/put should only happen in the
enable/disable hooks to properly support DPMS. Which essentially makes
these callbacks useless for drivers support runtime PM, so make them
optional. Again motivated by discussions with Laurent.

Cc: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Acked-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>

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Daniel Vetter 2015-02-22 12:24:20 +01:00

parent 1af434a928

commit c982bd90f5

2 changed files with 5 additions and 3 deletions

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3

include/drm/drm_crtc_helper.h

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