From: Philipp Zabel <p.zabel@pengutronix.de>
To: Ralph Sennhauser <ralph.sennhauser@gmail.com>
Cc: Andy Shevchenko <andy.shevchenko@gmail.com>,
Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
linux-serial@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: Re: [REGRESSION next-20170321] acbdad8dd1ab ("serial: 8250_dw: simplify optional reset handling") causes silent kernel.
Date: Wed, 22 Mar 2017 15:33:47 +0100 [thread overview]
Message-ID: <1490193227.2285.39.camel@pengutronix.de> (raw)
In-Reply-To: <20170322152445.0b25f78c@gmail.com>
Hi Ralph,
On Wed, 2017-03-22 at 15:24 +0100, Ralph Sennhauser wrote:
> Hi Philipp,
>
> Commit acbdad8dd1ab ("serial: 8250_dw: simplify optional reset
> handling") causes the kernel to no longer print anything to the serial
> console on a Linksys WRT3200ACM (Armada-385, a similar board would
> be ./arch/arm/boot/dts/armada-385-linksys-cobra.dts). The last message
> from uboot is "Starting kernel ..." and then silence. The device boots
> all the way nonetheless.
>
> Reverting the above commit gets the console output back.
>
> Ralph
Thank you for the report. I assume that you are compiling with the
RESET_CONTROLLER Kconfig option disabled? Does commit 0ca10b60ceeb
("reset: fix optional reset_control_get stubs to return NULL") [1] in
the arm-soc fixes branch help with this issue?
[1] https://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc.git/commit/?h=fixes&id=0ca10b60ceeb5372da01798ca68c116ae45a6eb6
regards
Philipp
next prev parent reply other threads:[~2017-03-22 14:33 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-03-22 14:24 [REGRESSION next-20170321] acbdad8dd1ab ("serial: 8250_dw: simplify optional reset handling") causes silent kernel Ralph Sennhauser
2017-03-22 14:33 ` Philipp Zabel [this message]
2017-03-22 15:11 ` Ralph Sennhauser
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