drm_fb_helper_initial_config — setup a sane initial connector configuration
int drm_fb_helper_initial_config ( | struct drm_fb_helper * fb_helper, |
int bpp_sel); |
fb_helperfb_helper device struct
bpp_selbpp value to use for the framebuffer configuration
Scans the CRTCs and connectors and tries to put together an initial setup. At the moment, this is a cloned configuration across all heads with a new framebuffer object as the backing store.
Note that this also registers the fbdev and so allows userspace to call into the driver through the fbdev interfaces.
This function will call down into the ->fb_probe callback to let
the driver allocate and initialize the fbdev info structure and the drm
framebuffer used to back the fbdev. drm_fb_helper_fill_var and
drm_fb_helper_fill_fix are provided as helpers to setup simple default
values for the fbdev info structure.