[PATCH v2] drm/rcar-du: DRM_RCAR_WRITEBACK depends on DRM

[Qian Cai]

There is no need to select DRM_RCAR_WRITEBACK if DRM=n which just make
the generated .config a bit ugly.

 # ARM devices
 #
 # end of ARM devices

 CONFIG_DRM_RCAR_WRITEBACK=y

 #
 # Frame buffer Devices

Let DRM_RCAR_WRITEBACK depend on DRM_RCAR_DU instead.

Signed-off-by: Qian Cai <cai at lca.pw>
---
 drivers/gpu/drm/rcar-du/Kconfig | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/gpu/drm/rcar-du/Kconfig b/drivers/gpu/drm/rcar-du/Kconfig
index 0919f1f159a4..3304b41f5611 100644
--- a/drivers/gpu/drm/rcar-du/Kconfig
+++ b/drivers/gpu/drm/rcar-du/Kconfig
@@ -48,3 +48,4 @@ config DRM_RCAR_VSP
 config DRM_RCAR_WRITEBACK
 	bool
 	default y if ARM64
+	depends on DRM_RCAR_DU
-- 
2.21.0 (Apple Git-122.2)