diff options
| author | Thierry Reding <thierry.reding@avionic-design.de> | 2013-01-14 16:05:56 (GMT) |
|---|---|---|
| committer | Dave Airlie <airlied@redhat.com> | 2013-02-08 03:53:04 (GMT) |
| commit | 03f6509df9218c760ae74f41a609233220d33f19 (patch) | |
| tree | 4c16f69a8ae54a6ffafd0c285afe165f63cd086b | |
| parent | 1e6d17a5df848cf8e483b689c6295776e9d6d997 (diff) | |
| download | linux-03f6509df9218c760ae74f41a609233220d33f19.tar.xz | |
drm: Allow vblank support without DRIVER_HAVE_IRQ
Drivers that register interrupt handlers without the DRM core helpers
don't initialize the .irq_enabled field and drm_dev_to_irq() may fail
when called on them. This shouldn't preclude them from implementing
the vblank IOCTL.
Signed-off-by: Thierry Reding <thierry.reding@avionic-design.de>
Signed-off-by: Dave Airlie <airlied@redhat.com>
| -rw-r--r-- | drivers/gpu/drm/drm_irq.c | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/drivers/gpu/drm/drm_irq.c b/drivers/gpu/drm/drm_irq.c index 19c01ca..71f8205 100644 --- a/drivers/gpu/drm/drm_irq.c +++ b/drivers/gpu/drm/drm_irq.c @@ -1218,8 +1218,9 @@ int drm_wait_vblank(struct drm_device *dev, void *data, int ret; unsigned int flags, seq, crtc, high_crtc; - if ((!drm_dev_to_irq(dev)) || (!dev->irq_enabled)) - return -EINVAL; + if (drm_core_check_feature(dev, DRIVER_HAVE_IRQ)) + if ((!drm_dev_to_irq(dev)) || (!dev->irq_enabled)) + return -EINVAL; if (vblwait->request.type & _DRM_VBLANK_SIGNAL) return -EINVAL; |