linux-kernel - Re: [PATCH] serial-core: resume serial hardware with no_console

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Date:	Thu, 24 Sep 2009 17:05:03 -0700
From:	Andrew Morton <akpm@...ux-foundation.org>
To:	Stanislav Brabec <utx@...guin.cz>
Cc:	linux-kernel@...r.kernel.org, gregkh@...e.de,
	linux@....linux.org.uk, Alan Cox <alan@...rguk.ukuu.org.uk>
Subject: Re: [PATCH] serial-core: resume serial hardware with
 no_console_suspend

On Tue, 15 Sep 2009 15:38:58 +0200
Stanislav Brabec <utx@...guin.cz> wrote:

> Hardware may need re-initialization to get serial port working after
> resume. It does not happen with no_console_suspend. Attached patch
> attempts to fix it.
> 
> The patch attempts to keep hardware running before suspend and run
> hardware re-initialization after resume. Maybe simpler approach is
> possible.

The patch doesn't apply any more and seems like a rather hacky thing to do.

It appears that you have specific serial hardware which doesn't resume
correctly?  If so, that's a bug, so how about we start with a bug
report/description?


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