SYNOPSIS

int drm_atomic_helper_check_planes(struct drm_device * dev, struct drm_atomic_state * state);

ARGUMENTS

dev

DRM device

state

the driver state object

DESCRIPTION

Check the state object to see if the requested state is physically possible. This does all the plane update related checks using by calling into the ->atomic_check hooks provided by the driver.

It also sets crtc_state->planes_changed to indicate that a crtc has updated planes.

RETURNS Zero for success or -errno

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

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