rockchip: video: Kconfig: Add Kconfig for rockchip video driver

1. add Kconfig for rockchip video driver, so that video port can be
selected as needed.
2. move VIDEO_ROCKCHIP option to new Kconfig for concision.

Signed-off-by: Eric Gao <eric.gao@rock-chips.com>
Acked-by: Simon Glass <sjg@chromium.org>
Drop indenting in Kconfig:
Signed-off-by: Simon Glass <sjg@chromium.org>

configs/chromebit_mickey_defconfig

@@ -72,6 +72,7 @@ CONFIG_SYSRESET=y
 CONFIG_DM_VIDEO=y
 CONFIG_DISPLAY=y
 CONFIG_VIDEO_ROCKCHIP=y
+CONFIG_DISPLAY_ROCKCHIP_HDMI=y
 CONFIG_USE_TINY_PRINTF=y
 CONFIG_CMD_DHRYSTONE=y
 CONFIG_ERRNO_STR=y

configs/chromebook_jerry_defconfig

@@ -72,6 +72,8 @@ CONFIG_SYSRESET=y
 CONFIG_DM_VIDEO=y
 CONFIG_DISPLAY=y
 CONFIG_VIDEO_ROCKCHIP=y
+CONFIG_DISPLAY_ROCKCHIP_EDP=y
+CONFIG_DISPLAY_ROCKCHIP_HDMI=y
 CONFIG_CONSOLE_SCROLL_LINES=10
 CONFIG_USE_TINY_PRINTF=y
 CONFIG_CMD_DHRYSTONE=y

configs/chromebook_minnie_defconfig

@@ -72,6 +72,8 @@ CONFIG_SYSRESET=y
 CONFIG_DM_VIDEO=y
 CONFIG_DISPLAY=y
 CONFIG_VIDEO_ROCKCHIP=y
+CONFIG_DISPLAY_ROCKCHIP_HDMI=y
+CONFIG_DISPLAY_ROCKCHIP_EDP=y
 CONFIG_CONSOLE_SCROLL_LINES=10
 CONFIG_USE_TINY_PRINTF=y
 CONFIG_CMD_DHRYSTONE=y

configs/firefly-rk3288_defconfig

@@ -69,6 +69,7 @@ CONFIG_USB_STORAGE=y
 CONFIG_DM_VIDEO=y
 CONFIG_DISPLAY=y
 CONFIG_VIDEO_ROCKCHIP=y
+CONFIG_DISPLAY_ROCKCHIP_HDMI=y
 CONFIG_CONSOLE_SCROLL_LINES=10
 CONFIG_USE_TINY_PRINTF=y
 CONFIG_CMD_DHRYSTONE=y

configs/miqi-rk3288_defconfig

@@ -66,6 +66,7 @@ CONFIG_USB_STORAGE=y
 CONFIG_DM_VIDEO=y
 CONFIG_DISPLAY=y
 CONFIG_VIDEO_ROCKCHIP=y
+CONFIG_DISPLAY_ROCKCHIP_HDMI=y
 CONFIG_CONSOLE_SCROLL_LINES=10
 CONFIG_USE_TINY_PRINTF=y
 CONFIG_CMD_DHRYSTONE=y

configs/rock2_defconfig

@@ -64,6 +64,7 @@ CONFIG_SYSRESET=y
 CONFIG_DM_VIDEO=y
 CONFIG_DISPLAY=y
 CONFIG_VIDEO_ROCKCHIP=y
+CONFIG_DISPLAY_ROCKCHIP_HDMI=y
 CONFIG_CONSOLE_SCROLL_LINES=10
 CONFIG_USE_TINY_PRINTF=y
 CONFIG_CMD_DHRYSTONE=y

drivers/video/Kconfig

@@ -425,15 +425,7 @@ config VIDEO_FSL_DCU_MAX_FB_SIZE_MB
 	 Set maximum framebuffer size to be used for Freescale Display
 	 Controller Unit (DCU4).
 
-config VIDEO_ROCKCHIP
+source "drivers/video/rockchip/Kconfig"
-	bool "Enable Rockchip video support"
-	depends on DM_VIDEO
-	help
-	   Rockchip SoCs provide video output capabilities for High-Definition
-	   Multimedia Interface (HDMI), Low-voltage Differential Signalling
-	   (LVDS), embedded DisplayPort (eDP) and Display Serial Interface
-	   (DSI). This driver supports the on-chip video output device, and
-	   targets the Rockchip RK3288.
 
 config VIDEO_SANDBOX_SDL
 	bool "Enable sandbox video console using SDL"

drivers/video/rockchip/Kconfig

@@ -0,0 +1,43 @@
+#
+# Video drivers selection for rockchip soc. These configs only impact the
+# compile process. You can surely check all the options. In this case, all the
+# display driver will be compiled, but which drivers finally  will be used is
+# decided by device tree configuration. What's more, enable needed power for
+# display by configure the device tree, and the vop driver will do the rest.
+#
+# Author: Eric Gao <eric.gao@rock-chips.com>
+#
+
+menuconfig VIDEO_ROCKCHIP
+	bool "Enable Rockchip Video Support"
+	depends on DM_VIDEO
+	help
+		Rockchip SoCs provide video output capabilities for High-Definition
+		Multimedia Interface (HDMI), Low-voltage Differential Signalling
+		(LVDS), embedded DisplayPort (eDP) and Display Serial Interface
+		(DSI). This driver supports the on-chip video output device, and
+		targets the Rockchip RK3288 and RK3399.
+
+if VIDEO_ROCKCHIP
+
+config DISPLAY_ROCKCHIP_EDP
+	bool "EDP Port"
+	depends on VIDEO_ROCKCHIP
+	help
+	  This enables Embedded DisplayPort(EDP) display support.
+
+config DISPLAY_ROCKCHIP_LVDS
+	bool "LVDS Port"
+	depends on VIDEO_ROCKCHIP
+	help
+	  This enables Low-voltage Differential Signaling(LVDS) display
+	  support.
+
+config DISPLAY_ROCKCHIP_HDMI
+	bool "HDMI port"
+	depends on VIDEO_ROCKCHIP
+	help
+	  This enables High-Definition Multimedia Interface display support.
+
+endif
+