[U-Boot] [PATCH v5 3/4] 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 DE1 driver uses this option, and the
definition of this option in the sunxi-common.h config header is
converted to an imply of this option from CONFIG_VIDEO_SUNXI.

Signed-off-by: Icenowy Zheng <icenowy at aosc.io>
---
Changes in v5:
- Convert Allwinner DE1 to use the option.
Changes in v4:
- Remove the dependency of VIDEO_DT_SIMPLEFB.

 arch/arm/mach-sunxi/Kconfig    | 1 +
 drivers/video/Kconfig          | 8 ++++++++
 include/configs/sunxi-common.h | 3 ---
 3 files changed, 9 insertions(+), 3 deletions(-)

diff --git a/arch/arm/mach-sunxi/Kconfig b/arch/arm/mach-sunxi/Kconfig
index 3c29fc61f7..33869a3dde 100644
--- a/arch/arm/mach-sunxi/Kconfig
+++ b/arch/arm/mach-sunxi/Kconfig
@@ -615,6 +615,7 @@ config VIDEO_SUNXI
 	depends on !MACH_SUN9I
 	depends on !MACH_SUN50I
 	select VIDEO
+	imply VIDEO_DT_SIMPLEFB
 	default y
 	---help---
 	Say Y here to add support for using a cfb console on the HDMI, LCD
diff --git a/drivers/video/Kconfig b/drivers/video/Kconfig
index 082cc4a528..547d4cc0c7 100644
--- a/drivers/video/Kconfig
+++ b/drivers/video/Kconfig
@@ -601,4 +601,12 @@ 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"
+	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
diff --git a/include/configs/sunxi-common.h b/include/configs/sunxi-common.h
index 0f16ea543e..3bae86fa79 100644
--- a/include/configs/sunxi-common.h
+++ b/include/configs/sunxi-common.h
@@ -273,9 +273,6 @@ extern int soft_i2c_gpio_scl;
  */
 #define CONFIG_SUNXI_MAX_FB_SIZE (16 << 20)
 
-/* Do we want to initialize a simple FB? */
-#define CONFIG_VIDEO_DT_SIMPLEFB
-
 #define CONFIG_VIDEO_LOGO
 #define CONFIG_VIDEO_STD_TIMINGS
 #define CONFIG_I2C_EDID
-- 
2.13.5