On Tue, Jul 12, 2022 at 10:01:15AM +0200, Geert Uytterhoeven wrote: > Hi Gerd, > > > It IMHO is not applicable to any physical hardware. It's used by > > virtio-gpu where the supported format depends on the byte order > > (it is argb8888 in native byte order). Only virtual hardware can > > have that kind of behavior. > > > > And we can probably drop the DRM_FORMAT_HOST_* variants for 1555 and > > 565, they are not used anywhere. > > Atari DRM supports (big-endian) RGB565, so it uses > DRM_FORMAT_HOST_RGB565. Fixed big endian should use 'DRM_FORMAT_RGB565 | DRM_FORMAT_BIG_ENDIAN'. As described above DRM_FORMAT_HOST_RGB565 means bigendian on bigendian hosts and little endian on little endian hosts. Which is not correct when your hardware does big endian no matter what. take care, Gerd
