linux-kernel - Re: [PATCH v2] drivers/tty: Folding Android's keyreset driver in sysRQ

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Message-ID: <50414140.60102@linaro.org>
Date:	Fri, 31 Aug 2012 16:57:04 -0600
From:	Mathieu Poirier <mathieu.poirier@...aro.org>
To:	Dmitry Torokhov <dmitry.torokhov@...il.com>
CC:	Alan Cox <alan@...rguk.ukuu.org.uk>, linux-kernel@...r.kernel.org,
	rdunlap@...otime.net, arve@...roid.com, kernel-team@...roid.com,
	john.stultz@...aro.org
Subject: Re: [PATCH v2] drivers/tty: Folding Android's keyreset driver in
 sysRQ

On 12-08-31 04:41 PM, Dmitry Torokhov wrote:
> On Fri, Aug 31, 2012 at 11:02:27PM +0100, Alan Cox wrote:
>>>> Why do we need to involve a platform device and not use, for example, a module
>>>> parameter, that could be set up from userspace?
>>>
>>> The platform device comes from the original design and was included to
>>> minimise the amount of changes in code that make use of the current
>>> keyreset driver.
>>
>> The platform device is IMHO the right answer. In this class of devices
>> the stuff is compiled in, the userspace is Android, there are no modules
>> and there is no reason for it to be configurable.
> 
> It does not matter if it is built in or not, /sys/module/XXX/parameters
> is still there, and while havig it in kernel is "easy" you could as
> easily stuff needed data into a sysfs attribute during booting.
> 
> And we should be able to get this from DT even without the platform
> device (this was the next step, wasn't it?).

Correct - my hope was to get the main functionality accepted before
adding DT support.  Do you think the lack of DT support is a blocker for
acceptance ?  Please confirm.

Mathieu.

> 
> Thanks.
> 

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