| Message ID | 20230710174007.2291013-1-robh@kernel.org |
|---|---|
| State | New |
| Headers | show |
| Series | of: Preserve "of-display" device name for compatibility | expand |
Am 10.07.23 um 19:40 schrieb Rob Herring: > 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. > > Fix this by keeping "of-display" for the first device and "of-display.N" > for subsequent devices. > > 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 > Cc: Cyril Brulebois <cyril@debamax.com> > Cc: Thomas Zimmermann <tzimmermann@suse.de> > Cc: Helge Deller <deller@gmx.de> > Signed-off-by: Rob Herring <robh@kernel.org> Acked-by: Thomas Zimmermann <tzimmermann@suse.de> > --- > drivers/of/platform.c | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-) > > diff --git a/drivers/of/platform.c b/drivers/of/platform.c > index 051e29b7ad2b..0c3475e7d2ff 100644 > --- a/drivers/of/platform.c > +++ b/drivers/of/platform.c > @@ -552,7 +552,7 @@ static int __init of_platform_default_populate_init(void) > if (!of_get_property(node, "linux,opened", NULL) || > !of_get_property(node, "linux,boot-display", NULL)) > continue; > - dev = of_platform_device_create(node, "of-display.0", NULL); > + dev = of_platform_device_create(node, "of-display", NULL); > of_node_put(node); > if (WARN_ON(!dev)) > return -ENOMEM;
On 7/11/23 08:00, Thomas Zimmermann wrote: > > > Am 10.07.23 um 19:40 schrieb Rob Herring: >> 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. >> >> Fix this by keeping "of-display" for the first device and "of-display.N" >> for subsequent devices. >> >> 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 >> Cc: Cyril Brulebois <cyril@debamax.com> >> Cc: Thomas Zimmermann <tzimmermann@suse.de> >> Cc: Helge Deller <deller@gmx.de> >> Signed-off-by: Rob Herring <robh@kernel.org> > > Acked-by: Thomas Zimmermann <tzimmermann@suse.de> Acked-by: Helge Deller <deller@gmx.de> Who will pick up that patch? Shall I take it via fbdev git tree? Helge > >> --- >> drivers/of/platform.c | 2 +- >> 1 file changed, 1 insertion(+), 1 deletion(-) >> >> diff --git a/drivers/of/platform.c b/drivers/of/platform.c >> index 051e29b7ad2b..0c3475e7d2ff 100644 >> --- a/drivers/of/platform.c >> +++ b/drivers/of/platform.c >> @@ -552,7 +552,7 @@ static int __init of_platform_default_populate_init(void) >> if (!of_get_property(node, "linux,opened", NULL) || >> !of_get_property(node, "linux,boot-display", NULL)) >> continue; >> - dev = of_platform_device_create(node, "of-display.0", NULL); >> + dev = of_platform_device_create(node, "of-display", NULL); >> of_node_put(node); >> if (WARN_ON(!dev)) >> return -ENOMEM; >
On Tue, Jul 11, 2023 at 9:46 AM Helge Deller <deller@gmx.de> wrote: > > On 7/11/23 08:00, Thomas Zimmermann wrote: > > > > > > Am 10.07.23 um 19:40 schrieb Rob Herring: > >> 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. > >> > >> Fix this by keeping "of-display" for the first device and "of-display.N" > >> for subsequent devices. > >> > >> 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 > >> Cc: Cyril Brulebois <cyril@debamax.com> > >> Cc: Thomas Zimmermann <tzimmermann@suse.de> > >> Cc: Helge Deller <deller@gmx.de> > >> Signed-off-by: Rob Herring <robh@kernel.org> > > > > Acked-by: Thomas Zimmermann <tzimmermann@suse.de> > > Acked-by: Helge Deller <deller@gmx.de> > > Who will pick up that patch? > Shall I take it via fbdev git tree? I'll take it. I've got other fixes queued up already. Rob
diff --git a/drivers/of/platform.c b/drivers/of/platform.c index 051e29b7ad2b..0c3475e7d2ff 100644 --- a/drivers/of/platform.c +++ b/drivers/of/platform.c @@ -552,7 +552,7 @@ static int __init of_platform_default_populate_init(void) if (!of_get_property(node, "linux,opened", NULL) || !of_get_property(node, "linux,boot-display", NULL)) continue; - dev = of_platform_device_create(node, "of-display.0", NULL); + dev = of_platform_device_create(node, "of-display", NULL); of_node_put(node); if (WARN_ON(!dev)) return -ENOMEM;
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. Fix this by keeping "of-display" for the first device and "of-display.N" for subsequent devices. 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 Cc: Cyril Brulebois <cyril@debamax.com> Cc: Thomas Zimmermann <tzimmermann@suse.de> Cc: Helge Deller <deller@gmx.de> Signed-off-by: Rob Herring <robh@kernel.org> --- drivers/of/platform.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)