Thomas Zimmermann <tzimmerm...@suse.de> writes: > Add support for screen_info setups with VIDEO_TYPE_EFI. Provide the > minimum functionality of reading modes, updating and clearing the display. > > There is existing support for these displays provided by simpledrm with > CONFIG_SYSFB_SIMPLEFB=y. Using efidrm over simpledrm will allows for the > mapping of video memory with correct caching. Simpledrm always assumes WC > caching, while fully cached memory is possible with efidrm. Efidrm will > also allow for the use of additional functionality provided by EFI, such > as EDID information. > > In addition to efidrm, add struct pixel_format plus initializer macros. > The type and macros describe pixel formats in a generic way on order to > find the DRM format from the screen_info settings. Similar existing code > in SIMPLEFB_FORMATS and fbdev is not really what is needed in efidrm, > but SIMPLEFB_FORMATS can later be converted to struct pixel_format. > > Signed-off-by: Thomas Zimmermann <tzimmerm...@suse.de> > ---
Reviewed-by: Javier Martinez Canillas <javi...@redhat.com> -- Best regards, Javier Martinez Canillas Core Platforms Red Hat
