[U-Boot] [PATCH] video: add command cls

[Anatolij Gustschin <agust@denx.de>]

Hi Patrick,

On Thu, 8 Nov 2018 18:24:32 +0100
Patrick Delaunay patrick.delaunay at st.com wrote:

> Implement the existing command cls, for clear screen,
> when CONFIG_DM_VIDEO is activated.
> 
> This command was defined for old LCD framework (not dm) in
>   common/lcd.c:251
>   U_BOOT_CMD(cls,	1, 1, do_lcd_clear, "clear screen", "");
> 
> This command is useful to clear existing output (vidconsole) before
> to display splashscreen with bmp command.

Thanks for the patch! But I think we should remove this existing
lcd specific cls and add a common command under cmd/cls.c. I'll
submit a path for this.

--
Anatolij