[U-Boot] [PATCH v4 2/3] video: add an option for video simplefb via DT

Maxime Ripard maxime.ripard at free-electrons.com
Mon Sep 18 07:29:06 UTC 2017


Hi,

On Fri, Sep 15, 2017 at 09:59:20AM +0800, Icenowy Zheng wrote:
> 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>
> ---
> Changes in v4:
> - Remove the dependency of VIDEO_DT_SIMPLEFB.
> 
>  drivers/video/Kconfig | 8 ++++++++
>  1 file changed, 8 insertions(+)
> 
> 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.
> +

You should also remove it from the current users. It will generate a
warning otherwise.

Maxime

-- 
Maxime Ripard, Free Electrons
Embedded Linux and Kernel engineering
http://free-electrons.com
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