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drm/tegra: Explicitly set irq_enabled 

Since the Tegra DRM driver doesn't use the drm_irq_install() helper, the
irq_enabled flag needs to be set manually in order to make functionality
such as the DRM_IOCTL_WAIT_VBLANK work properly.

Signed-off-by: Thierry Reding <thierry.reding@avionic-design.de>
This commit is contained in:
Thierry Reding 2013-04-22 21:22:14 +02:00 committed by Thierry Reding
parent 2678aeba5f
commit 603f0cc948
1 changed files with 7 additions and 0 deletions
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7
drivers/gpu/host1x/drm/drm.c
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@ -257,6 +257,13 @@ static int tegra_drm_load(struct drm_device *drm, unsigned long flags)
if (err < 0)
return err;
/*
* We don't use the drm_irq_install() helpers provided by the DRM
* core, so we need to set this manually in order to allow the
* DRM_IOCTL_WAIT_VBLANK to operate correctly.
*/
drm->irq_enabled = 1;
err = drm_vblank_init(drm, drm->mode_config.num_crtc);
if (err < 0)
return err;