SYNOPSIS

int drm_helper_crtc_mode_set(struct drm_crtc * crtc, struct drm_display_mode * mode, struct drm_display_mode * adjusted_mode, int x, int y, struct drm_framebuffer * old_fb);

ARGUMENTS

crtc

DRM CRTC

mode

DRM display mode which userspace requested

adjusted_mode

DRM display mode adjusted by ->mode_fixup callbacks

x

x offset of the CRTC scanout area on the underlying framebuffer

y

y offset of the CRTC scanout area on the underlying framebuffer

old_fb

previous framebuffer

DESCRIPTION

This function implements a callback useable as the ->mode_set callback required by the CRTC helpers. Besides the atomic plane helper functions for the primary plane the driver must also provide the ->mode_set_nofb callback to set up the CRTC.

This is a transitional helper useful for converting drivers to the atomic interfaces.

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