On 12/13/22 21:12, Thomas Zimmermann wrote: > The DRM helper drm_fb_build_fourcc_list() creates a list of color > formats for primary planes of the generic drivers. Simplify the helper: > > - It used to mix and filter native and emulated formats as provided > by the driver. Now the only emulated format is XRGB8888, which is > required as fallback by legacy software. Drop support for emulating > any other formats. > - Also convert alpha formats to their non-alpha counterparts. Generic > drivers don't support primary planes with alpha formats and some > DTs incorrectly advertise alpha channels for non-alpha hardware. So > only export non-alpha formats for primary planes. > > With the simplified helper, scrap format lists of the affected generic > drivers. All they need is the firmware buffer's native format, from which > the helper creates the list of color formats. > > Signed-off-by: Thomas Zimmermann <tzimmermann@xxxxxxx> > --- Reviewed-by: Javier Martinez Canillas <javierm@xxxxxxxxxx> -- Best regards, Javier Martinez Canillas Core Platforms Red Hat
