drm: rcar-du: Add dependency on OF

The driver requires OF support, add a dependency in Kconfig and remove
the platform_device_id table that isn't used anymore.

Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Acked-by: Geert Uytterhoeven <geert+renesas@glider.be>

2 files changed, 2 insertions, 11 deletions

diff --git a/drivers/gpu/drm/rcar-du/Kconfig b/drivers/gpu/drm/rcar-du/Kconfig
index 11485a4a16ae..d4e0a39568f6 100644
--- a/drivers/gpu/drm/rcar-du/Kconfig
+++ b/drivers/gpu/drm/rcar-du/Kconfig
@@ -1,6 +1,6 @@
 config DRM_RCAR_DU
         tristate "DRM Support for R-Car Display Unit"
-        depends on DRM && ARM && HAVE_DMA_ATTRS
+        depends on DRM && ARM && HAVE_DMA_ATTRS && OF
         depends on ARCH_SHMOBILE || COMPILE_TEST
         select DRM_KMS_HELPER
         select DRM_KMS_CMA_HELPER
diff --git a/drivers/gpu/drm/rcar-du/rcar_du_drv.c b/drivers/gpu/drm/rcar-du/rcar_du_drv.c
index a8dfca5575c8..355d1e79c5d7 100644
--- a/drivers/gpu/drm/rcar-du/rcar_du_drv.c
+++ b/drivers/gpu/drm/rcar-du/rcar_du_drv.c
@@ -106,13 +106,6 @@ static const struct rcar_du_device_info rcar_du_r8a7791_info = {
         .num_lvds = 1,
 };
 
-static const struct platform_device_id rcar_du_id_table[] = {
-        { "rcar-du-r8a7779", (kernel_ulong_t)&rcar_du_r8a7779_info },
-        { }
-};
-
-MODULE_DEVICE_TABLE(platform, rcar_du_id_table);
-
 static const struct of_device_id rcar_du_of_table[] = {
         { .compatible = "renesas,du-r8a7779", .data = &rcar_du_r8a7779_info },
         { .compatible = "renesas,du-r8a7790", .data = &rcar_du_r8a7790_info },
@@ -165,8 +158,7 @@ static int rcar_du_load(struct drm_device *dev, unsigned long flags)
         init_waitqueue_head(&rcdu->commit.wait);
 
         rcdu->dev = &pdev->dev;
-        rcdu->info = np ? of_match_device(rcar_du_of_table, rcdu->dev)->data
-                   : (void *)platform_get_device_id(pdev)->driver_data;
+        rcdu->info = of_match_device(rcar_du_of_table, rcdu->dev)->data;
         rcdu->ddev = dev;
         dev->dev_private = rcdu;
 
@@ -338,7 +330,6 @@ static struct platform_driver rcar_du_platform_driver = {
                 .pm     = &rcar_du_pm_ops,
                 .of_match_table = rcar_du_of_table,
         },
-        .id_table       = rcar_du_id_table,
 };
 
 module_platform_driver(rcar_du_platform_driver);