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authorHans de Goede <hdegoede@redhat.com>2016-11-10 10:46:26 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2016-11-11 08:12:37 -0800
commitc6c7d83b9c9e6a8b3e6d84c820ac61fbffc9e396 (patch)
tree9a4b0a3a99d2fa6ce6208cf66329df1ac78e11a9 /drivers/of
parentc3901e722b2975666f42748340df798114742d6d (diff)
downloadlinux-c6c7d83b9c9e6a8b3e6d84c820ac61fbffc9e396.tar.bz2
Revert "console: don't prefer first registered if DT specifies stdout-path"
This reverts commit 05fd007e4629 ("console: don't prefer first registered if DT specifies stdout-path"). The reverted commit changes existing behavior on which many ARM boards rely. Many ARM small-board-computers, like e.g. the Raspberry Pi have both a video output and a serial console. Depending on whether the user is using the device as a more regular computer; or as a headless device we need to have the console on either one or the other. Many users rely on the kernel behavior of the console being present on both outputs, before the reverted commit the console setup with no console= kernel arguments on an ARM board which sets stdout-path in dt would look like this: [root@localhost ~]# cat /proc/consoles ttyS0 -W- (EC p a) 4:64 tty0 -WU (E p ) 4:1 Where as after the reverted commit, it looks like this: [root@localhost ~]# cat /proc/consoles ttyS0 -W- (EC p a) 4:64 This commit reverts commit 05fd007e4629 ("console: don't prefer first registered if DT specifies stdout-path") restoring the original behavior. Fixes: 05fd007e4629 ("console: don't prefer first registered if DT specifies stdout-path") Link: http://lkml.kernel.org/r/20161104121135.4780-2-hdegoede@redhat.com Signed-off-by: Hans de Goede <hdegoede@redhat.com> Cc: Paul Burton <paul.burton@imgtec.com> Cc: Rob Herring <robh+dt@kernel.org> Cc: Frank Rowand <frowand.list@gmail.com> Cc: Thorsten Leemhuis <regressions@leemhuis.info> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Cc: Tejun Heo <tj@kernel.org> Cc: <stable@vger.kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'drivers/of')
-rw-r--r--drivers/of/base.c2
1 files changed, 0 insertions, 2 deletions
diff --git a/drivers/of/base.c b/drivers/of/base.c
index d687e6de24a0..a0bccb54a9bd 100644
--- a/drivers/of/base.c
+++ b/drivers/of/base.c
@@ -2077,8 +2077,6 @@ void of_alias_scan(void * (*dt_alloc)(u64 size, u64 align))
name = of_get_property(of_aliases, "stdout", NULL);
if (name)
of_stdout = of_find_node_opts_by_path(name, &of_stdout_options);
- if (of_stdout)
- console_set_by_of();
}
if (!of_aliases)