Messages in this thread Patch in this message | | | From | Rob Herring <> | Subject | [PATCH] of: Preserve "of-display" device name for compatibility | Date | Mon, 10 Jul 2023 11:40:07 -0600 |
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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(-)
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; -- 2.40.1
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