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Refactor the existing simple-display callbacks such that they invoke helpers compatible with regular atomic modesetting. Allows for adding mipi-dbi drives that do not require simple-display helpers. Provide initializer macro for elements of the regular modesetting pipeline. These will be used by drivers to integrate mipi-dbi helpers. Also provide initializer macros for the plane formats. As the new helpers are DRM functions, add the drm_ prefix. Mipi-dbi interfaces currently lack this. v3: - fix uninitialized variable (David) - document public interfaces (David) - mention format macros in commit message (David) Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de> Acked-by: David Lechner <david@lechnology.com> Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com> Link: https://patch.msgid.link/20260319160110.109610-4-tzimmermann@suse.de