[U-Boot] [PATCH v3 2/3] video: add an option for video simplefb via DT

[Icenowy Zheng]

Add an option to indicate that the video driver should setup a SimpleFB
node that passes the video framebuffer initialized by U-Boot to the
operating system kernel.

Currently only the Allwinner DE2 driver uses this option.

Signed-off-by: Icenowy Zheng <icenowy at aosc.io>
---
 drivers/video/Kconfig | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/drivers/video/Kconfig b/drivers/video/Kconfig
index 082cc4a528..e4e71763f5 100644
--- a/drivers/video/Kconfig
+++ b/drivers/video/Kconfig
@@ -601,4 +601,14 @@ config VIDEO_DW_HDMI
 	  rather requires a SoC-specific glue driver to call it), it
 	  can not be enabled from the configuration menu.
 
+config VIDEO_DT_SIMPLEFB
+	bool "Enable SimpleFB support for passing framebuffer to OS"
+	depends on VIDEO_DE2
+	default y
+	help
+	  Enables the code to pass the framebuffer to the kernel as a
+	  simple framebuffer in the device tree.
+	  The video output is initialized by U-Boot, and kept by the
+	  kernel.
+
 endmenu
-- 
2.13.5