SYNOPSIS

int drm_atomic_set_crtc_for_connector(struct drm_connector_state * conn_state, struct drm_crtc * crtc);

ARGUMENTS

conn_state

atomic state object for the connector

crtc

crtc to use for the connector

DESCRIPTION

Changing the assigned crtc for a connector requires us to grab the lock and state for the new crtc, as needed. This function takes care of all these details besides updating the pointer in the state object itself.

RETURNS

0 on success or can fail with -EDEADLK or -ENOMEM. When the error is EDEADLK then the w/w mutex code has detected a deadlock and the entire atomic sequence must be restarted. All other errors are fatal.

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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