drm/hisilicon/hibmc: Run DRM default client setup

Call drm_client_setup() 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.

The hibmc driver specifies a preferred color mode of 32. As this
is the default if no format has been given, leave it out entirely.

v5:
- select DRM_CLIENT_SELECTION

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Cc: Xinliang Liu <xinliang.liu@linaro.org>
Cc: Tian Tao <tiantao6@hisilicon.com>
Cc: Xinwei Kong <kong.kongxinwei@hisilicon.com>
Cc: Sumit Semwal <sumit.semwal@linaro.org>
Cc: Yongqin Liu <yongqin.liu@linaro.org>
Cc: John Stultz <jstultz@google.com>
Acked-by: Javier Martinez Canillas <javierm@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240924071734.98201-67-tzimmermann@suse.de

drivers/gpu/drm/hisilicon/hibmc/Kconfig

@@ -3,6 +3,7 @@ config DRM_HISI_HIBMC
 	tristate "DRM Support for Hisilicon Hibmc"
 	depends on DRM && PCI && (ARM64 || COMPILE_TEST)
 	depends on MMU
+	select DRM_CLIENT_SELECTION
 	select DRM_KMS_HELPER
 	select DRM_VRAM_HELPER
 	select DRM_TTM

drivers/gpu/drm/hisilicon/hibmc/hibmc_drm_drv.c

@@ -16,6 +16,7 @@
 
 #include <drm/drm_aperture.h>
 #include <drm/drm_atomic_helper.h>
+#include <drm/drm_client_setup.h>
 #include <drm/drm_drv.h>
 #include <drm/drm_fbdev_ttm.h>
 #include <drm/drm_gem_framebuffer_helper.h>
@@ -63,6 +64,7 @@ static const struct drm_driver hibmc_driver = {
 	.debugfs_init		= drm_vram_mm_debugfs_init,
 	.dumb_create            = hibmc_dumb_create,
 	.dumb_map_offset        = drm_gem_ttm_dumb_map_offset,
+	DRM_FBDEV_TTM_DRIVER_OPS,
 };
 
 static int __maybe_unused hibmc_pm_suspend(struct device *dev)
@@ -339,7 +341,7 @@ static int hibmc_pci_probe(struct pci_dev *pdev,
 		goto err_unload;
 	}
 
-	drm_fbdev_ttm_setup(dev, 32);
+	drm_client_setup(dev, NULL);
 
 	return 0;