From: Salvatore Bonaccorso <carnil@debian.org>
To: Cyril Brulebois <cyril@debamax.com>, regressions@lists.linux.dev
Cc: linux-fbdev@vger.kernel.org, dri-devel@lists.freedesktop.org,
Thomas Zimmermann <tzimmermann@suse.de>,
Rob Herring <robh@kernel.org>,
Michal Suchanek <msuchanek@suse.de>,
linux-kernel@vger.kernel.org, stable@vger.kernel.org
Subject: Re: [PATCH 1/2] fbdev/offb: Update expected device name
Date: Sun, 16 Apr 2023 14:34:43 +0200 [thread overview]
Message-ID: <ZDvrY7X9mpJ7WZ3z@eldamar.lan> (raw)
In-Reply-To: <20230412095509.2196162-2-cyril@debamax.com>
Hi
looping in as well the regressions list (hoping not doing any mistake
with the regzbot commands):
On Wed, Apr 12, 2023 at 11:55:08AM +0200, Cyril Brulebois wrote:
> Since commit 241d2fb56a18 ("of: Make OF framebuffer device names unique"),
> as spotted by Frédéric Bonnard, the historical "of-display" device is
> gone: the updated logic creates "of-display.0" instead, then as many
> "of-display.N" as required.
>
> This means that offb no longer finds the expected device, which prevents
> the Debian Installer from setting up its interface, at least on ppc64el.
>
> It might be better to iterate on all possible nodes, but updating the
> hardcoded device from "of-display" to "of-display.0" is confirmed to fix
> the Debian Installer at the very least.
>
> Link: https://bugzilla.kernel.org/show_bug.cgi?id=217328
> Link: https://bugs.debian.org/1033058
> Fixes: 241d2fb56a18 ("of: Make OF framebuffer device names unique")
> Cc: stable@vger.kernel.org
> Signed-off-by: Cyril Brulebois <cyril@debamax.com>
> ---
> drivers/video/fbdev/offb.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/drivers/video/fbdev/offb.c b/drivers/video/fbdev/offb.c
> index b97d251d894b..6264c7184457 100644
> --- a/drivers/video/fbdev/offb.c
> +++ b/drivers/video/fbdev/offb.c
> @@ -698,7 +698,7 @@ MODULE_DEVICE_TABLE(of, offb_of_match_display);
>
> static struct platform_driver offb_driver_display = {
> .driver = {
> - .name = "of-display",
> + .name = "of-display.0",
> .of_match_table = offb_of_match_display,
> },
> .probe = offb_probe_display,
#regzbot ^introduced 241d2fb56a18
#regzbot title: Open Firmware framebuffer cannot find of-display
#regzbot link: https://bugzilla.kernel.org/show_bug.cgi?id=217328
#regzbot link: https://lore.kernel.org/all/20230412095509.2196162-1-cyril@debamax.com/T/#m34493480243a2cad2ae359abfd9db5e755f41add
#regzbot link: https://bugs.debian.org/1033058
Regards,
Salvatore
next prev parent reply other threads:[~2023-04-16 12:34 UTC|newest]
Thread overview: 21+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-04-12 9:55 Updating hardcoded "of-display" devices Cyril Brulebois
2023-04-12 9:55 ` [PATCH 1/2] fbdev/offb: Update expected device name Cyril Brulebois
2023-04-16 12:34 ` Salvatore Bonaccorso [this message]
2023-06-15 13:03 ` Linux regression tracking (Thorsten Leemhuis)
2023-06-15 13:06 ` Thomas Zimmermann
2023-06-15 13:21 ` Michal Suchánek
2023-06-15 20:09 ` Rob Herring
2023-06-15 21:19 ` Cyril Brulebois
2023-06-20 6:24 ` Helge Deller
2023-06-20 8:04 ` Michal Suchánek
2023-06-15 13:12 ` Cyril Brulebois
2023-04-22 9:50 ` Helge Deller
2023-04-24 7:31 ` Geert Uytterhoeven
2023-07-10 16:36 ` Michal Suchánek
2023-04-12 9:55 ` [PATCH 2/2] drm/ofdrm: " Cyril Brulebois
2023-04-24 7:33 ` Geert Uytterhoeven
2023-04-24 9:07 ` Thomas Zimmermann
2023-04-24 9:35 ` Helge Deller
2023-05-22 9:37 ` Linux regression tracking (Thorsten Leemhuis)
2023-05-22 11:44 ` Michal Suchánek
2023-07-10 16:36 ` Michal Suchánek
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