linux-kernel - Re: [PATCH 4/4] serial/arc-uart: switch to devicetree based probing

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Message-Id: <201302090928.43929.arnd@arndb.de>
Date:	Sat, 9 Feb 2013 09:28:43 +0000
From:	Arnd Bergmann <arnd@...db.de>
To:	Vineet Gupta <Vineet.Gupta1@...opsys.com>
Cc:	Grant Likely <grant.likely@...retlab.ca>,
	linux-serial@...r.kernel.org, linux-kernel@...r.kernel.org,
	"Greg Kroah-Hartman" <gregkh@...uxfoundation.org>,
	devicetree-discuss@...ts.ozlabs.org,
	Rob Herring <rob.herring@...xeda.com>,
	Rob Landley <rob@...dley.net>
Subject: Re: [PATCH 4/4] serial/arc-uart: switch to devicetree based probing

On Saturday 09 February 2013, Vineet Gupta wrote:
> On Saturday 09 February 2013 04:31 AM, Grant Likely wrote:
> > On Fri, 11 Jan 2013 11:50:23 +0530, Vineet Gupta <Vineet.Gupta1@...opsys.com> wrote:
> >> +- clock-frequency   : the input clock frequency for the UART
> >> +- baud                      : baud rate for UART
> > change 'baud' to 'current-speed'. There is already precedence for this
> > with other serial devices.
> 
> While I'm OK with this - I can only see of_serial.c following the rule :-)
> More importantly I'm not clear about the logistics of this fix. Obviously this has
> a bearing on DT files in arch/arc/boot/*. So are such changes (platform + driver)
> routed thru the subsystem tree or the arch tree or bits from both with
> bisectability not considered - which feels wrong. We have to also consider the
> fact that Greg has closed the tty/serial for 3.9. So while I have no objection to
> your comment, it seems that the it needs to wait till 3.9-rc1 - or is there an
> alternate way.

I'd consider this one a bug fix, so while Greg is not accepting any new
features for the serial tree, I think it should still get in that way
and should not be controversial as an add-on change.

	
	Arnd
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