drm_fb_helper_initial_config9
Setup a sane initial connector configuration
Usage
bool drm_fb_helper_initial_config(struct
drm_fb_helper
*
fb_helper,
int
bpp_sel);
Arguments
fb_helper
fb_helper device struct
bpp_sel
bpp value to use for the framebuffer configuration
Overview
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.
Returns
Zero if everything went ok, nonzero otherwise.