Re: [PATCH 09/12] drm/irq: Lack of interrupt support in drm_vblank_on|off

On Wed, May 14, 2014 at 08:51:12PM +0200, Daniel Vetter wrote:

If we want to use this functionality in generic helpers to make sure that all drivers have somewhat sane vblank handling across modesets/dpms, we need to make it work for all drivers. But some don't support interrupts and hence also not vblank waits.

Just return early on such drivers.

Note that with pageflips drivers are free to implement them however they wish to.

Signed-off-by: Daniel Vetter daniel.vetter@ffwll.ch

drivers/gpu/drm/drm_irq.c | 6 ++++++ 1 file changed, 6 insertions(+)

Reviewed-by: Thierry Reding treding@nvidia.com