SYNOPSIS

int drm_atomic_helper_disable_all(struct drm_device * dev, struct drm_modeset_acquire_ctx * ctx);

ARGUMENTS

dev

DRM device

ctx

lock acquisition context

DESCRIPTION

Loops through all connectors, finding those that aren't turned off and then turns them off by setting their DPMS mode to OFF and deactivating the CRTC that they are connected to.

This is used for example in suspend/resume to disable all currently active functions when suspending.

Note that if callers haven't already acquired all modeset locks this might return -EDEADLK, which must be handled by calling drm_modeset_backoff.

RETURNS

0 on success or a negative error code on failure.

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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