drm/hisilicon/kirin: 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 kirin 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: John Stultz <jstultz@google.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240924071734.98201-14-tzimmermann@suse.de

drivers/gpu/drm/hisilicon/kirin/Kconfig

@@ -2,6 +2,7 @@
 config DRM_HISI_KIRIN
 	tristate "DRM Support for Hisilicon Kirin series SoCs Platform"
 	depends on DRM && OF && (ARM64 || COMPILE_TEST)
+	select DRM_CLIENT_SELECTION
 	select DRM_KMS_HELPER
 	select DRM_GEM_DMA_HELPER
 	select DRM_MIPI_DSI

drivers/gpu/drm/hisilicon/kirin/kirin_drm_ade.c

@@ -25,6 +25,7 @@
 #include <drm/drm_crtc.h>
 #include <drm/drm_drv.h>
 #include <drm/drm_fb_dma_helper.h>
+#include <drm/drm_fbdev_dma.h>
 #include <drm/drm_fourcc.h>
 #include <drm/drm_framebuffer.h>
 #include <drm/drm_gem_dma_helper.h>
@@ -925,6 +926,7 @@ static const struct drm_driver ade_driver = {
 	.driver_features = DRIVER_GEM | DRIVER_MODESET | DRIVER_ATOMIC,
 	.fops = &ade_fops,
 	DRM_GEM_DMA_DRIVER_OPS,
+	DRM_FBDEV_DMA_DRIVER_OPS,
 	.name = "kirin",
 	.desc = "Hisilicon Kirin620 SoC DRM Driver",
 	.date = "20150718",

drivers/gpu/drm/hisilicon/kirin/kirin_drm_drv.c

@@ -18,8 +18,8 @@
 #include <linux/platform_device.h>
 
 #include <drm/drm_atomic_helper.h>
+#include <drm/drm_client_setup.h>
 #include <drm/drm_drv.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>
@@ -237,7 +237,7 @@ static int kirin_drm_bind(struct device *dev)
 	if (ret)
 		goto err_kms_cleanup;
 
-	drm_fbdev_dma_setup(drm_dev, 32);
+	drm_client_setup(drm_dev, NULL);
 
 	return 0;