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Date: Thu, 28 Mar 2024 13:39:50 +0100
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Subject: Re: [PATCH v2 1/3] arch: Select fbdev helpers with CONFIG_VIDEO
To: Thomas Zimmermann <tzimmermann@suse.de>, arnd@arndb.de,
 javierm@redhat.com, sui.jingfeng@linux.dev
Cc: linux-arch@vger.kernel.org, dri-devel@lists.freedesktop.org,
 linux-fbdev@vger.kernel.org, sparclinux@vger.kernel.org,
 linux-sh@vger.kernel.org, linuxppc-dev@lists.ozlabs.org,
 linux-parisc@vger.kernel.org, linux-mips@vger.kernel.org,
 linux-m68k@lists.linux-m68k.org, loongarch@lists.linux.dev,
 linux-arm-kernel@lists.infradead.org, linux-snps-arc@lists.infradead.org,
 linux-kernel@vger.kernel.org,
 "James E.J. Bottomley" <James.Bottomley@HansenPartnership.com>,
 "David S. Miller" <davem@davemloft.net>,
 Andreas Larsson <andreas@gaisler.com>, Thomas Gleixner <tglx@linutronix.de>,
 Ingo Molnar <mingo@redhat.com>, Borislav Petkov <bp@alien8.de>,
 Dave Hansen <dave.hansen@linux.intel.com>, x86@kernel.org,
 "H. Peter Anvin" <hpa@zytor.com>
References: <20240327204450.14914-1-tzimmermann@suse.de>
 <20240327204450.14914-2-tzimmermann@suse.de>
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From: Helge Deller <deller@gmx.de>
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In-Reply-To: <20240327204450.14914-2-tzimmermann@suse.de>
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On 3/27/24 21:41, Thomas Zimmermann wrote:
> Various Kconfig options selected the per-architecture helpers for
> fbdev. But none of the contained code depends on fbdev. Standardize
> on CONFIG_VIDEO, which will allow to add more general helpers for
> video functionality.
>
> CONFIG_VIDEO protects each architecture's video/ directory.

Your patch in general looks good.
But is renaming the config option from CONFIG_FB_CORE to CONFIG_VIDEO
the best choice?
CONFIG_VIDEO might be mixed up with multimedia/video-streaming.

Why not e.g. CONFIG_GRAPHICS_CORE?
I'm fine with CONFIG_VIDEO as well, but if someone has a better idea
we maybe should go with that instead now?

Helge

> This
> allows for the use of more fine-grained control for each directory's
> files, such as the use of CONFIG_STI_CORE on parisc.
>
> v2:
> - sparc: rebased onto Makefile changes
>
> Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
> Cc: "James E.J. Bottomley" <James.Bottomley@HansenPartnership.com>
> Cc: Helge Deller <deller@gmx.de>
> Cc: "David S. Miller" <davem@davemloft.net>
> Cc: Andreas Larsson <andreas@gaisler.com>
> Cc: Thomas Gleixner <tglx@linutronix.de>
> Cc: Ingo Molnar <mingo@redhat.com>
> Cc: Borislav Petkov <bp@alien8.de>
> Cc: Dave Hansen <dave.hansen@linux.intel.com>
> Cc: x86@kernel.org
> Cc: "H. Peter Anvin" <hpa@zytor.com>
> ---
>   arch/parisc/Makefile      | 2 +-
>   arch/sparc/Makefile       | 4 ++--
>   arch/sparc/video/Makefile | 2 +-
>   arch/x86/Makefile         | 2 +-
>   arch/x86/video/Makefile   | 3 ++-
>   5 files changed, 7 insertions(+), 6 deletions(-)
>
> diff --git a/arch/parisc/Makefile b/arch/parisc/Makefile
> index 316f84f1d15c8..21b8166a68839 100644
> --- a/arch/parisc/Makefile
> +++ b/arch/parisc/Makefile
> @@ -119,7 +119,7 @@ export LIBGCC
>
>   libs-y	+=3D arch/parisc/lib/ $(LIBGCC)
>
> -drivers-y +=3D arch/parisc/video/
> +drivers-$(CONFIG_VIDEO) +=3D arch/parisc/video/
>
>   boot	:=3D arch/parisc/boot
>
> diff --git a/arch/sparc/Makefile b/arch/sparc/Makefile
> index 2a03daa68f285..757451c3ea1df 100644
> --- a/arch/sparc/Makefile
> +++ b/arch/sparc/Makefile
> @@ -59,8 +59,8 @@ endif
>   libs-y                 +=3D arch/sparc/prom/
>   libs-y                 +=3D arch/sparc/lib/
>
> -drivers-$(CONFIG_PM) +=3D arch/sparc/power/
> -drivers-$(CONFIG_FB_CORE) +=3D arch/sparc/video/
> +drivers-$(CONFIG_PM)    +=3D arch/sparc/power/
> +drivers-$(CONFIG_VIDEO) +=3D arch/sparc/video/
>
>   boot :=3D arch/sparc/boot
>
> diff --git a/arch/sparc/video/Makefile b/arch/sparc/video/Makefile
> index d4d83f1702c61..9dd82880a027a 100644
> --- a/arch/sparc/video/Makefile
> +++ b/arch/sparc/video/Makefile
> @@ -1,3 +1,3 @@
>   # SPDX-License-Identifier: GPL-2.0-only
>
> -obj-$(CONFIG_FB_CORE) +=3D fbdev.o
> +obj-y	+=3D fbdev.o
> diff --git a/arch/x86/Makefile b/arch/x86/Makefile
> index 15a5f4f2ff0aa..c0ea612c62ebe 100644
> --- a/arch/x86/Makefile
> +++ b/arch/x86/Makefile
> @@ -265,7 +265,7 @@ drivers-$(CONFIG_PCI)            +=3D arch/x86/pci/
>   # suspend and hibernation support
>   drivers-$(CONFIG_PM) +=3D arch/x86/power/
>
> -drivers-$(CONFIG_FB_CORE) +=3D arch/x86/video/
> +drivers-$(CONFIG_VIDEO) +=3D arch/x86/video/
>
>   ####
>   # boot loader support. Several targets are kept for legacy purposes
> diff --git a/arch/x86/video/Makefile b/arch/x86/video/Makefile
> index 5ebe48752ffc4..9dd82880a027a 100644
> --- a/arch/x86/video/Makefile
> +++ b/arch/x86/video/Makefile
> @@ -1,2 +1,3 @@
>   # SPDX-License-Identifier: GPL-2.0-only
> -obj-$(CONFIG_FB_CORE)		+=3D fbdev.o
> +
> +obj-y	+=3D fbdev.o