]> git.karo-electronics.de Git - linux-beck.git/commitdiff
drm/irq: simplify irq checks in drm_wait_vblank
authorDaniel Vetter <daniel.vetter@ffwll.ch>
Wed, 28 Aug 2013 13:02:37 +0000 (15:02 +0200)
committerDaniel Vetter <daniel.vetter@ffwll.ch>
Tue, 22 Apr 2014 09:41:09 +0000 (11:41 +0200)
Checking for both an irq number _and_ whether it's enabled is
redundant. Originally I've thought the drm_dev_to_irq call would break
drivers which do their own irq checking, but those shouldn't have
DRIVER_HAVE_IRQ set as Thierry Reding pointed out. But such drivers
already need to set dev->irq_enabled for other reasons, so we might as
well ditch that check, too.

v2: Also drop the HAVE_IRQ check.

Cc: Thierry Reding <thierry.reding@gmail.com>
Reviewed-by: Thierry Reding <treding@nvidia.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
drivers/gpu/drm/drm_irq.c

index c2676b5908d9f6edbcf4dd8d9fb126cfb93cd5ab..d4cc47690d657b040201f5946d339364d15187e9 100644 (file)
@@ -1160,9 +1160,8 @@ int drm_wait_vblank(struct drm_device *dev, void *data,
        int ret;
        unsigned int flags, seq, crtc, high_crtc;
 
-       if (drm_core_check_feature(dev, DRIVER_HAVE_IRQ))
-               if ((!drm_dev_to_irq(dev)) || (!dev->irq_enabled))
-                       return -EINVAL;
+       if (!dev->irq_enabled)
+               return -EINVAL;
 
        if (vblwait->request.type & _DRM_VBLANK_SIGNAL)
                return -EINVAL;