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[82.192.242.114]) by smtp.gmail.com with ESMTPSA id g15-20020a05600c4ecf00b003edc4788fa0sm13028683wmq.2.2023.04.16.05.34.44 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sun, 16 Apr 2023 05:34:44 -0700 (PDT) Sender: Salvatore Bonaccorso Received: by eldamar.lan (Postfix, from userid 1000) id DF91ABE2DE0; Sun, 16 Apr 2023 14:34:43 +0200 (CEST) Date: Sun, 16 Apr 2023 14:34:43 +0200 From: Salvatore Bonaccorso To: Cyril Brulebois , regressions@lists.linux.dev Cc: linux-fbdev@vger.kernel.org, dri-devel@lists.freedesktop.org, Thomas Zimmermann , Rob Herring , Michal Suchanek , linux-kernel@vger.kernel.org, stable@vger.kernel.org Subject: Re: [PATCH 1/2] fbdev/offb: Update expected device name Message-ID: References: <20230412095509.2196162-1-cyril@debamax.com> <20230412095509.2196162-2-cyril@debamax.com> MIME-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: <20230412095509.2196162-2-cyril@debamax.com> Precedence: bulk List-ID: X-Mailing-List: linux-fbdev@vger.kernel.org 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 > --- > 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