drm/fbdev-dma: Fix framebuffer mode for big endian devices

The drm_mode_legacy_fb_format() function only generates formats suitable
for little endian devices. switch to drm_driver_legacy_fb_format() here
instead to take the device endianness into consideration, too.

Suggested-by: Thomas Zimmermann <[email protected]>
Signed-off-by: Thomas Huth <[email protected]>
Reviewed-by: Thomas Zimmermann <[email protected]>
Reviewed-by: Javier Martinez Canillas <[email protected]>
Signed-off-by: Thomas Zimmermann <[email protected]>
Fixes: 6ae2ff2 ("drm/client: Convert drm_client_buffer_addfb() to drm_mode_addfb2()")
Cc: Geert Uytterhoeven <[email protected]>
Cc: Javier Martinez Canillas <[email protected]>
Cc: Hamza Mahfooz <[email protected]>
Cc: Maarten Lankhorst <[email protected]>
Cc: Maxime Ripard <[email protected]>
Cc: Thomas Zimmermann <[email protected]>
Cc: <[email protected]> # v6.7+
Link: https://patchwork.freedesktop.org/patch/msgid/[email protected]

Author: huth

drivers/gpu/drm/drm_fbdev_dma.c

@@ -101,7 +101,8 @@ static int drm_fbdev_dma_helper_fb_probe(struct drm_fb_helper *fb_helper,
 		    sizes->surface_width, sizes->surface_height,
 		    sizes->surface_bpp);
 
-	format = drm_mode_legacy_fb_format(sizes->surface_bpp, sizes->surface_depth);
+	format = drm_driver_legacy_fb_format(dev, sizes->surface_bpp,
+					     sizes->surface_depth);
 	buffer = drm_client_framebuffer_create(client, sizes->surface_width,
 					       sizes->surface_height, format);
 	if (IS_ERR(buffer))