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061963cd9e
Use the color format stored in struct drm_sysfb_crtc_state for color-format conversion instead of the scanout-buffer format announced by firmware. Currently, both values are identical. This will allow drivers to modify the CRTC's input format to a certain extend. Specifically, vesadrm will be able to display RGB framebuffers when the scanout buffer is of C8 format. With color- format conversion to RGB332 and correct setup of the C8 palette, displaying XRGB8888-based buffers under C8 can be achieved. v2: - refer to RGB332 as CRTC input format Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de> Reviewed-by: Javier Martinez Canillas <javierm@redhat.com> Link: https://lore.kernel.org/r/20250714151513.309475-5-tzimmermann@suse.de