drm/pl111: Run DRM default client setup

Call drm_client_setup_with_color_mode() to run the kernel's default
client setup for DRM. Set fbdev_probe in struct drm_driver, so that
the client setup can start the common fbdev client.

v5:
- select DRM_CLIENT_SELECTION

Signed-off-by: Thomas Zimmermann <[e-mail]>
Acked-by: Javier Martinez Canillas <[e-mail]>
Link: https://patchwork.freedesktop.org/patch/msgid/[e-mail]

drivers/gpu/drm/pl111/Kconfig

···
 	depends on ARM || ARM64 || COMPILE_TEST
 	depends on VEXPRESS_CONFIG || VEXPRESS_CONFIG=n
 	depends on COMMON_CLK
+	select DRM_CLIENT_SELECTION
 	select DRM_KMS_HELPER
 	select DRM_GEM_DMA_HELPER
 	select DRM_BRIDGE

drivers/gpu/drm/pl111/pl111_drv.c

···
 
 #include <drm/drm_atomic_helper.h>
 #include <drm/drm_bridge.h>
+#include <drm/drm_client_setup.h>
 #include <drm/drm_drv.h>
 #include <drm/drm_fbdev_dma.h>
 #include <drm/drm_fourcc.h>
···
 	.patchlevel = 0,
 	.dumb_create = drm_gem_dma_dumb_create,
 	.gem_prime_import_sg_table = pl111_gem_import_sg_table,
+	DRM_FBDEV_DMA_DRIVER_OPS,
 
 #if defined(CONFIG_DEBUG_FS)
 	.debugfs_init = pl111_debugfs_init,
···
 	if (ret < 0)
 		goto dev_put;
 
-	drm_fbdev_dma_setup(drm, priv->variant->fb_depth);
+	drm_client_setup_with_color_mode(drm, priv->variant->fb_depth);
 
 	return 0;