drm_wait_one_vblank
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## Name

drm_wait_one_vblank — wait for one vblank

## Synopsis

`void drm_wait_one_vblank (` | struct drm_device * dev,
| unsigned int pipe`)`;

## Arguments

`dev`

  DRM device

`pipe`

  CRTC index

## Description

This waits for one vblank to pass on `pipe`, using the irq driver interfaces. It is a failure to call this when the vblank irq for `pipe` is disabled, e.g. due to lack of driver support or because the crtc is off.

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