linux-kernel - Re: [PATCH 6/9] ARC: clocksource: DT based probe

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <56BB3D69.9000606@linaro.org>
Date:	Wed, 10 Feb 2016 14:38:49 +0100
From:	Daniel Lezcano <daniel.lezcano@...aro.org>
To:	Vineet Gupta <Vineet.Gupta1@...opsys.com>,
	linux-snps-arc@...ts.infradead.org, Alexey.Brodkin@...opsys.com,
	Noam Camus <noamc@...hip.com>
Cc:	linux-kernel@...r.kernel.org
Subject: Re: [PATCH 6/9] ARC: clocksource: DT based probe

On 02/08/2016 01:23 PM, Vineet Gupta wrote:
> On Monday 08 February 2016 05:40 PM, Daniel Lezcano wrote:
>> On 02/02/2016 11:58 AM, Vineet Gupta wrote:
>>> - Remove explicit clocksource setup and let it be done by OF framework
>>>     by defining CLOCKSOURCE_OF_DECLARE() for various timers
>>>
>>> - This allows multiple clocksources to be potentially registered
>>>     simultaneouly: previously we could only do one - as all of them had
>>>     same arc_counter_setup() routine for registration
>>>
>>> - Setup routines also ensure that the underlying timer actually exists.
>>>
>>> - Remove some of the panic() calls if underlying timer is NOT detcted as
>>>     a fallback clocksource might still be available
>>>     1. If GRFC doesn't exist, jiffies clocksource gets registered anyways
>>>     2. if RTC doesn't exist, TIMER1 cetainly will take over (as it is
>>>        always present)
>>>
>>> Cc: Daniel Lezcano <daniel.lezcano@...aro.org>
>>> Signed-off-by: Vineet Gupta <vgupta@...opsys.com>
>>
>> May be it is time to move these drivers into the drivers/clocksource directory
>> where they belong to.
>
> I suppose we could, but that is only possible after this round of "moderization",
> i.e. usage of CLOCKSOURCE_OF_DECLARE() et al.
>
> Plus the move will require a bunch of mechanical crap such as read_aux_reg() which
> only ARC defines (similar to headaches Noam had for his clksrc).
>
> So if we could agree on the sanity of this round of changes, I can work towards
> the imminent move into drivers.

Ok, sounds good.


-- 
  <http://www.linaro.org/> Linaro.org │ Open source software for ARM SoCs

Follow Linaro:  <http://www.facebook.com/pages/Linaro> Facebook |
<http://twitter.com/#!/linaroorg> Twitter |
<http://www.linaro.org/linaro-blog/> Blog