[PATCH v3] video: sunxi_display: Convert to DM_VIDEO

["Jernej Škrabec" <jernej.skrabec@siol.net>]

Dne petek, 05. februar 2021 ob 02:07:48 CET je Andre Przywara napisal(a):
> From: Jagan Teki <jagan@amarulasolutions.com>
> 
> DM_VIDEO migration deadline is already expired, but around
> 80 Allwinner boards are still using video in a legacy way.
> 
> ===================== WARNING ======================
> This board does not use CONFIG_DM_VIDEO Please update
> the board to use CONFIG_DM_VIDEO before the v2019.07 release.
> Failure to update by the deadline may result in board removal.
> See doc/driver-model/migration.rst for more info.
> ====================================================
> 
> Convert the legacy video driver over to the DM_VIDEO framework. This is
> a minimal conversion: it doesn't use the DT for finding its resources,
> nor does it use DM clocks or DM devices for the outputs (LCD, HDMI, CVBS).
> 
> Tested in Bananapi M1+ Plus 1920x1200 HDMI out. (Jagan)
> 
> Signed-off-by: Jagan Teki <jagan@amarulasolutions.com>
> [Andre: rebase and smaller fixes]
> Signed-off-by: Andre Przywara <andre.przywara@arm.com>
> ---
> Hi,
> 
> I picked this one up to get rid of the warnings. I dropped the BMP
> support for now (v2 1/3 and v2 2/3), I need to have a closer look, as
> I am not convinced this was the right solution.
> 
> Cheers,
> Andre
> 
> Changelog v2 .. v3:
> - rebase against master, fixing up renamed variables and structs
> - replace enum with #define
> - remove BMP from Kconfig
> - fix memory node size calculation in simplefb setup
> 
>  arch/arm/mach-sunxi/Kconfig         |   9 +-
>  drivers/video/sunxi/sunxi_display.c | 262 ++++++++++++++++------------
>  include/configs/sunxi-common.h      |  17 --
>  scripts/config_whitelist.txt        |   1 -
>  4 files changed, 157 insertions(+), 132 deletions(-)
> 
> diff --git a/arch/arm/mach-sunxi/Kconfig b/arch/arm/mach-sunxi/Kconfig
> index 0135575ca1e..a29d11505aa 100644
> --- a/arch/arm/mach-sunxi/Kconfig
> +++ b/arch/arm/mach-sunxi/Kconfig
> @@ -816,13 +816,14 @@ config VIDEO_SUNXI
>  	depends on !MACH_SUN9I
>  	depends on !MACH_SUN50I
>  	depends on !SUN50I_GEN_H6
> -	select VIDEO
> +	select DM_VIDEO
> +	select DISPLAY
>  	imply VIDEO_DT_SIMPLEFB
>  	default y
>  	---help---
> -	Say Y here to add support for using a cfb console on the HDMI, LCD
> -	or VGA output found on most sunxi devices. See doc/README.video 
for
> -	info on how to select the video output and mode.
> +	Say Y here to add support for using a graphical console on the 
HDMI,
> +	LCD or VGA output found on older sunxi devices. This will also 
provide
> +	a simple_framebuffer device for Linux.
>  
>  config VIDEO_HDMI
>  	bool "HDMI output support"

<snip>

> diff --git a/include/configs/sunxi-common.h b/include/configs/sunxi-common.h
> index 000f3864702..97661329ba4 100644
> --- a/include/configs/sunxi-common.h
> +++ b/include/configs/sunxi-common.h
> @@ -256,23 +256,6 @@ extern int soft_i2c_gpio_scl;
>  #endif
>  #endif /* ifdef CONFIG_REQUIRE_SERIAL_CONSOLE */
>  
> -#ifdef CONFIG_VIDEO_SUNXI
> -/*
> - * The amount of RAM to keep free at the top of RAM when relocating u-boot,
> - * to use as framebuffer. This must be a multiple of 4096.
> - */
> -#define CONFIG_SUNXI_MAX_FB_SIZE (16 << 20)
> -
> -#define CONFIG_VIDEO_LOGO
> -#define CONFIG_VIDEO_STD_TIMINGS
> -#define CONFIG_I2C_EDID
> -#define VIDEO_LINE_LEN (pGD->plnSizeX)
> -
> -/* allow both serial and cfb console. */
> -/* stop x86 thinking in cfbconsole from trying to init a pc keyboard */
> -
> -#endif /* CONFIG_VIDEO_SUNXI */
> -
>  /* Ethernet support */
>  
>  #ifdef CONFIG_USB_EHCI_HCD

This file has another ifdef which can be removed (#ifdef CONFIG_VIDEO).

After that,
Reviewed-by: Jernej Skrabec <jernej.skrabec@siol.net>

Best regards,
Jernej

> diff --git a/scripts/config_whitelist.txt b/scripts/config_whitelist.txt
> index c6a83124956..ed469f74034 100644
> --- a/scripts/config_whitelist.txt
> +++ b/scripts/config_whitelist.txt
> @@ -1661,7 +1661,6 @@ CONFIG_STV0991
>  CONFIG_STV0991_HZ
>  CONFIG_STV0991_HZ_CLOCK
>  CONFIG_ST_SMI
> -CONFIG_SUNXI_MAX_FB_SIZE
>  CONFIG_SXNI855T
>  CONFIG_SYSFLAGS_ADDR
>  CONFIG_SYSFS
> -- 
> 2.17.5
> 
>