drm/exynos: re-arrange Kconfig entries

Exynos DRM driver have quite big number of components and options.
The patch re-arranges them into three logical groups:
- CRTCs,
- Encoders and Bridges,
- Sub-drivers.
It should make driver options more clear.
Signed-off-by: NAndrzej Hajda <a.hajda@samsung.com>
Signed-off-by: NInki Dae <inki.dae@samsung.com>

drivers/gpu/drm/exynos/Kconfig

@@ -18,6 +18,8 @@ config DRM_EXYNOS_IOMMU
 	depends on EXYNOS_IOMMU && ARM_DMA_USE_IOMMU
 	default y
 
+comment "CRTCs"
+
 config DRM_EXYNOS_FIMD
 	bool "Exynos DRM FIMD"
 	depends on !FB_S3C
@@ -38,9 +40,22 @@ config DRM_EXYNOS7_DECON
 	help
 	  Choose this option if you want to use Exynos DECON for DRM.
 
+config DRM_EXYNOS_MIXER
+	bool "Exynos DRM Mixer"
+	depends on !VIDEO_SAMSUNG_S5P_TV
+	help
+	  Choose this option if you want to use Exynos Mixer for DRM.
+
+config DRM_EXYNOS_VIDI
+	bool "Exynos DRM Virtual Display"
+	help
+	  Choose this option if you want to use Exynos VIDI for DRM.
+
+comment "Encoders and Bridges"
+
 config DRM_EXYNOS_DPI
 	bool "EXYNOS DRM parallel output support"
-	depends on DRM_EXYNOS_FIMD || DRM_EXYNOS7_DECON
+	depends on DRM_EXYNOS_FIMD
 	select DRM_PANEL
 	default n
 	help
@@ -63,22 +78,19 @@ config DRM_EXYNOS_DP
 	help
 	  This enables support for DP device.
 
-config DRM_EXYNOS_MIXER
-	bool "Exynos DRM Mixer"
-	depends on !VIDEO_SAMSUNG_S5P_TV
-	help
-	  Choose this option if you want to use Exynos Mixer for DRM.
-
 config DRM_EXYNOS_HDMI
 	bool "Exynos DRM HDMI"
 	depends on !VIDEO_SAMSUNG_S5P_TV && (DRM_EXYNOS_MIXER || DRM_EXYNOS5433_DECON)
 	help
 	  Choose this option if you want to use Exynos HDMI for DRM.
 
-config DRM_EXYNOS_VIDI
-	bool "Exynos DRM Virtual Display"
+config DRM_EXYNOS_MIC
+	bool "Exynos DRM MIC"
+	depends on DRM_EXYNOS5433_DECON
 	help
-	  Choose this option if you want to use Exynos VIDI for DRM.
+	  Choose this option if you want to use Exynos MIC for DRM.
+
+comment "Sub-drivers"
 
 config DRM_EXYNOS_G2D
 	bool "Exynos DRM G2D"
@@ -110,10 +122,4 @@ config DRM_EXYNOS_GSC
 	help
 	  Choose this option if you want to use Exynos GSC for DRM.
 
-config DRM_EXYNOS_MIC
-	bool "Exynos DRM MIC"
-	depends on DRM_EXYNOS5433_DECON
-	help
-	  Choose this option if you want to use Exynos MIC for DRM.
-
 endif