drm/tiny/hx8357d: Use fbdev-dma
Implement fbdev emulation with fbdev-dma. Fbdev-dma now supports damage handling, which is required by hx8357d. Avoids the overhead of fbdev-generic's additional shadow buffering. No functional changes. Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de> Reviewed-by: Javier Martinez Canillas <javierm@redhat.com> Link: https://patchwork.freedesktop.org/patch/msgid/20240419083331.7761-33-tzimmermann@suse.de
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