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DRM_FB_HELPER_INIT(9) DRM Core DRM_FB_HELPER_INIT(9)

NAME

drm_fb_helper_init - initialize a drm_fb_helper structure

SYNOPSIS

int drm_fb_helper_init(struct drm_device * dev, struct drm_fb_helper * fb_helper, int crtc_count, int max_conn_count);

ARGUMENTS

dev
drm device
fb_helper
driver-allocated fbdev helper structure to initialize
crtc_count
maximum number of crtcs to support in this fbdev emulation
max_conn_count
max connector count

DESCRIPTION

This allocates the structures for the fbdev helper with the given limits. Note that this won't yet touch the hardware (through the driver interfaces) nor register the fbdev. This is only done in drm_fb_helper_initial_config to allow driver writes more control over the exact init sequence.
Drivers must set fb_helper->funcs before calling drm_fb_helper_initial_config.

RETURNS

Zero if everything went ok, nonzero otherwise.

AUTHORS

Jesse Barnes <jesse.barnes@intel.com>
 
Intel Corporation,
Initial version
Laurent Pinchart <laurent.pinchart@ideasonboard.com>
 
Ideas on board SPRL,
Driver internals
Daniel Vetter <daniel.vetter@ffwll.ch>
 
Intel Corporation,
Contributions all over the place

COPYRIGHT

May 2018 Kernel Hackers Manual 3.16