drm/mxsfb/lcdif: 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 lcdif 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: Marek Vasut <marex@denx.de>
Cc: Stefan Agner <stefan@agner.ch>
Cc: Shawn Guo <shawnguo@kernel.org>
Cc: Sascha Hauer <s.hauer@pengutronix.de>
Cc: Pengutronix Kernel Team <kernel@pengutronix.de>
Cc: Fabio Estevam <festevam@gmail.com>
Acked-by: Javier Martinez Canillas <javierm@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240924071734.98201-30-tzimmermann@suse.de

diff --git a/drivers/gpu/drm/mxsfb/Kconfig b/drivers/gpu/drm/mxsfb/Kconfig
index 518b533..ac368c2 100644 (file)
--- a/drivers/gpu/drm/mxsfb/Kconfig
+++ b/drivers/gpu/drm/mxsfb/Kconfig
@@ -26,6 +26,7 @@ config DRM_IMX_LCDIF
        depends on DRM && OF
        depends on COMMON_CLK
        depends on ARCH_MXC || COMPILE_TEST
+       select DRM_CLIENT_SELECTION
        select DRM_MXS
        select DRM_KMS_HELPER
        select DRM_GEM_DMA_HELPER

diff --git a/drivers/gpu/drm/mxsfb/lcdif_drv.c b/drivers/gpu/drm/mxsfb/lcdif_drv.c
index 0f895b8..58ccad9 100644 (file)
--- a/drivers/gpu/drm/mxsfb/lcdif_drv.c
+++ b/drivers/gpu/drm/mxsfb/lcdif_drv.c
@@ -16,6 +16,7 @@
 
 #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_encoder.h>
 #include <drm/drm_fbdev_dma.h>
@@ -243,6 +244,7 @@ DEFINE_DRM_GEM_DMA_FOPS(fops);
 static const struct drm_driver lcdif_driver = {
        .driver_features        = DRIVER_GEM | DRIVER_MODESET | DRIVER_ATOMIC,
        DRM_GEM_DMA_DRIVER_OPS,
+       DRM_FBDEV_DMA_DRIVER_OPS,
        .fops   = &fops,
        .name   = "imx-lcdif",
        .desc   = "i.MX LCDIF Controller DRM",
@@ -275,7 +277,7 @@ static int lcdif_probe(struct platform_device *pdev)
        if (ret)
                goto err_unload;
 
-       drm_fbdev_dma_setup(drm, 32);
+       drm_client_setup(drm, NULL);
 
        return 0;