SYNOPSIS

void drm_modeset_lock_crtc(struct drm_crtc * crtc, struct drm_plane * plane);

ARGUMENTS

crtc

DRM CRTC

plane

DRM plane to be updated on crtc

DESCRIPTION

This function locks the given crtc and plane (which should be either the primary or cursor plane) using a hidden acquire context. This is necessary so that drivers internally using the atomic interfaces can grab further locks with the lock acquire context.

Note that plane can be NULL, e.g. when the cursor support hasn't yet been converted to universal planes yet.

AUTHORS

Jesse Barnes <[email protected]>
Intel Corporation,         
        

Initial version

Laurent Pinchart <[email protected]>
Ideas on board SPRL,         
        

Driver internals

Daniel Vetter <[email protected]>
Intel Corporation,         
        

Contributions all over the place

Lukas Wunner <[email protected]>

vga_switcheroo documentation

COPYRIGHT