[PATCH 06/17] drm/tegra: dc: Add missing call to drm_vblank_on()

[Alexandre Courbot]

On 11/03/2014 06:27 PM, Thierry Reding wrote:
> From: Thierry Reding <treding at nvidia.com>
>
> When the CRTC is enabled, make sure the VBLANK machinery is enabled.
> Failure to do so will cause drm_vblank_get() to not enable the VBLANK on
> the CRTC and VBLANK-synchronized page-flips won't work.
>
> While at it, get rid of the legacy drm_vblank_pre_modeset() and
> drm_vblank_post_modeset() calls that are replaced by drm_vblank_on()
> and drm_vblank_off().
>
> Reported-by: Alexandre Courbot <acourbot at nvidia.com>
> Signed-off-by: Thierry Reding <treding at nvidia.com>

Tested-by: Alexandre Courbot <acourbot at nvidia.com>

I also think this patch should go for 3.18 since even kmscube won't work 
without it.