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From: Hans de Goede <hdegoede@redhat.com>
To: Grant Likely <grant.likely@linaro.org>,
	Leif Lindholm <leif.lindholm@linaro.org>,
	Rob Herring <robh@kernel.org>,
	Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
	Peter Hurley <peter@hurleysoftware.com>
Cc: stable <stable@vger.kernel.org>, devicetree@vger.kernel.org
Subject: [REGRESSION] "of: Fix premature bootconsole disable with 'stdout-path'" breaks console on tty0
Date: Mon, 16 Mar 2015 17:31:00 +0100	[thread overview]
Message-ID: <55070544.9010908@redhat.com> (raw)

Hi All,

While updating my local working tree to 4.0-rc4 this morning I noticed that I no longer
get console / kernel messages output on the hdmi output of my ARM board / on tty0

This is caused by:
https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/drivers/of?id=2fa645cb2703d9b3786d850db815414dfeefa51d

Reverting this commit fixes this for me.

What is happening here is that the "add_preferred_console("stdout-path", 0, NULL);"
happens before the tty0 registers stopping tty0 from becoming part of the console list
since there already is a preferred console at that time.

This is an undesirable behavior change caused by the commit in question, on boards
where there is both video output, and a serial console configured through stdout-path
we want to have console output on both as we do not know which of the 2 will actually
be hooked up by the user.

Regards,

Hans

             reply	other threads:[~2015-03-16 16:31 UTC|newest]

Thread overview: 32+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-03-16 16:31 Hans de Goede [this message]
2015-03-16 17:49 ` [REGRESSION] "of: Fix premature bootconsole disable with 'stdout-path'" breaks console on tty0 Peter Hurley
     [not found]   ` <550717A0.3060603-WaGBZJeGNqdsbIuE7sb01tBPR1lH4CV8@public.gmane.org>
2015-03-16 18:12     ` Hans de Goede
     [not found]       ` <55071D0C.2050700-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
2015-03-16 18:23         ` Peter Hurley
2015-03-16 18:35           ` Hans de Goede
2015-03-16 19:46             ` Peter Hurley
     [not found]               ` <5507332B.5020504-WaGBZJeGNqdsbIuE7sb01tBPR1lH4CV8@public.gmane.org>
2015-03-17 16:48                 ` Jon Masters
2015-03-17 17:47                   ` Peter Hurley
     [not found]                     ` <550868AF.8050201-WaGBZJeGNqdsbIuE7sb01tBPR1lH4CV8@public.gmane.org>
2015-03-18  0:13                       ` Jon Masters
2015-03-18 13:00                         ` Peter Hurley
2015-03-18 22:46                           ` Jon Masters
     [not found]                             ` <550A003C.4040100-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
2015-03-19 11:46                               ` Peter Hurley
2015-03-16 22:36             ` Peter Hurley
2015-03-17  8:20               ` Hans de Goede
2015-03-17 13:30                 ` Rob Herring
     [not found]                   ` <CAL_Jsq+dA3RDbakrkeMY07czs13bFFKCyETEXTzWxf+h1umBPQ-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2015-03-17 13:43                     ` Hans de Goede
     [not found]                       ` <55082F9F.90909-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
2015-03-17 14:20                         ` Peter Hurley
2015-03-17 20:22                           ` Peter Hurley
2015-03-17  0:19   ` Andreas Schwab
     [not found]     ` <87r3sowk51.fsf-hBGjKatGTSWzQB+pC5nmwQ@public.gmane.org>
2015-03-17  0:30       ` Peter Hurley
2015-03-17  0:35         ` Andreas Schwab
2015-03-17  0:46           ` Peter Hurley
2015-03-17  6:49             ` Geert Uytterhoeven
2015-03-17 18:27               ` Andreas Schwab
2015-03-17 19:35         ` Andreas Schwab
2015-03-17 19:44           ` Peter Hurley
2015-03-17 20:14             ` Peter Hurley
2015-03-17 22:26               ` Andreas Schwab
2015-03-17  8:25     ` Hans de Goede
2015-03-17 10:09       ` Leif Lindholm
     [not found]         ` <20150317100917.GM4278-t77nlHhSwNqAroYi2ySoxKxOck334EZe@public.gmane.org>
2015-03-17 10:11           ` Hans de Goede
2015-03-17 19:06       ` Andreas Schwab

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