drm_vblank_off
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Name

drm_vblank_off — disable vblank events on a CRTC

Synopsis

void drm_vblank_off (struct drm_device * dev,
 int crtc);
 

Arguments

dev

DRM device

crtc

CRTC in question

Description

Drivers can use this function to shut down the vblank interrupt handling when disabling a crtc. This function ensures that the latest vblank frame count is stored so that drm_vblank_on can restore it again.

Drivers must use this function when the hardware vblank counter can get reset, e.g. when suspending.

This is the legacy version of drm_crtc_vblank_off.

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