drm/tve200: Use GEM DMA fbdev emulation

Use the fbdev emulation that is optimized for DMA helpers. Avoids
possible shadow buffering and makes the code simpler.
Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Reviewed-by: Javier Martinez Canillas <javierm@redhat.com>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20230313155138.20584-21-tzimmermann@suse.de

drivers/gpu/drm/tve200/tve200_drv.c

@@ -40,7 +40,7 @@
 #include <drm/drm_atomic_helper.h>
 #include <drm/drm_bridge.h>
 #include <drm/drm_drv.h>
-#include <drm/drm_fbdev_generic.h>
+#include <drm/drm_fbdev_dma.h>
 #include <drm/drm_gem_dma_helper.h>
 #include <drm/drm_gem_framebuffer_helper.h>
 #include <drm/drm_module.h>
@@ -227,7 +227,7 @@ static int tve200_probe(struct platform_device *pdev)
 	 * Passing in 16 here will make the RGB565 mode the default
 	 * Passing in 32 will use XRGB8888 mode
 	 */
-	drm_fbdev_generic_setup(drm, 16);
+	drm_fbdev_dma_setup(drm, 16);
 
 	return 0;