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From: daniel.lezcano@linaro.org (Daniel Lezcano)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH 3/6] clocksource: bcm2835: Migrate to new 'set-state' interface
Date: Thu, 11 Jun 2015 18:13:59 +0200	[thread overview]
Message-ID: <5579B3C7.5030305@linaro.org> (raw)
In-Reply-To: <20150611160048.GC4386@linux>

On 06/11/2015 06:00 PM, Viresh Kumar wrote:
> On 11-06-15, 17:25, Daniel Lezcano wrote:
>> Please mention in the log you removed the RESUME because it does
>> nothing and the core code will just ignore it.
>
> Okay.
>
>> The patch is ok but there is an inconsistency on how are handled the
>> different callbacks. tick_resume can be omitted but not
>> state_shutdown and state_oneshot forcing the drivers to define empty
>> functions.
>
> It was done because they are thought to be compulsory, but even I
> am not sure if we should make all callbacks as optional.

Yes, I think it would make sense to ignore NULL callback in 
__clockevents_set_state, otherwise we will end up to fill the different 
drivers with duplicated noop functions.


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

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WARNING: multiple messages have this Message-ID (diff)
From: Daniel Lezcano <daniel.lezcano@linaro.org>
To: Viresh Kumar <viresh.kumar@linaro.org>
Cc: Thomas Gleixner <tglx@linutronix.de>,
	linaro-kernel@lists.linaro.org, linux-kernel@vger.kernel.org,
	linux-arm-kernel@lists.infradead.org,
	Stephen Warren <swarren@wwwdotorg.org>,
	Lee Jones <lee@kernel.org>
Subject: Re: [PATCH 3/6] clocksource: bcm2835: Migrate to new 'set-state' interface
Date: Thu, 11 Jun 2015 18:13:59 +0200	[thread overview]
Message-ID: <5579B3C7.5030305@linaro.org> (raw)
In-Reply-To: <20150611160048.GC4386@linux>

On 06/11/2015 06:00 PM, Viresh Kumar wrote:
> On 11-06-15, 17:25, Daniel Lezcano wrote:
>> Please mention in the log you removed the RESUME because it does
>> nothing and the core code will just ignore it.
>
> Okay.
>
>> The patch is ok but there is an inconsistency on how are handled the
>> different callbacks. tick_resume can be omitted but not
>> state_shutdown and state_oneshot forcing the drivers to define empty
>> functions.
>
> It was done because they are thought to be compulsory, but even I
> am not sure if we should make all callbacks as optional.

Yes, I think it would make sense to ignore NULL callback in 
__clockevents_set_state, otherwise we will end up to fill the different 
drivers with duplicated noop functions.


-- 
  <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


  reply	other threads:[~2015-06-11 16:13 UTC|newest]

Thread overview: 52+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-06-08 13:40 [PATCH 0/6] clockevent: Migrate to new 'set-state' interface Viresh Kumar
2015-06-08 13:40 ` Viresh Kumar
2015-06-08 13:40 ` [PATCH 1/6] clocksource: arm_arch_timer: " Viresh Kumar
2015-06-08 13:40   ` Viresh Kumar
2015-06-11 12:23   ` Daniel Lezcano
2015-06-11 12:23     ` Daniel Lezcano
2015-06-11 12:57     ` Viresh Kumar
2015-06-11 12:57       ` Viresh Kumar
2015-06-08 13:40 ` [PATCH 2/6] clocksource: arm_global_timer: " Viresh Kumar
2015-06-08 13:40   ` Viresh Kumar
2015-06-11 14:49   ` Daniel Lezcano
2015-06-11 14:49     ` Daniel Lezcano
2015-06-11 14:56     ` Viresh Kumar
2015-06-11 14:56       ` Viresh Kumar
2015-06-11 14:58       ` Daniel Lezcano
2015-06-11 14:58         ` Daniel Lezcano
2015-06-12  8:39   ` Srinivas Kandagatla
2015-06-12  8:39     ` Srinivas Kandagatla
2015-06-12  8:51     ` Viresh Kumar
2015-06-12  8:51       ` Viresh Kumar
2015-06-08 13:40 ` [PATCH 3/6] clocksource: bcm2835: " Viresh Kumar
2015-06-08 13:40   ` Viresh Kumar
2015-06-11 15:25   ` Daniel Lezcano
2015-06-11 15:25     ` Daniel Lezcano
2015-06-11 16:00     ` Viresh Kumar
2015-06-11 16:00       ` Viresh Kumar
2015-06-11 16:13       ` Daniel Lezcano [this message]
2015-06-11 16:13         ` Daniel Lezcano
2015-06-11 16:27         ` Viresh Kumar
2015-06-11 16:27           ` Viresh Kumar
2015-06-08 13:40 ` [PATCH 4/6] clocksource: bcm_kona: " Viresh Kumar
2015-06-08 13:40   ` Viresh Kumar
2015-06-08 16:09   ` Ray Jui
2015-06-08 16:09     ` Ray Jui
2015-06-08 16:22     ` Viresh Kumar
2015-06-08 16:22       ` Viresh Kumar
2015-06-08 16:30       ` Ray Jui
2015-06-08 16:30         ` Ray Jui
2015-06-08 17:10         ` Ray Jui
2015-06-08 17:10           ` Ray Jui
2015-06-08 13:40 ` [PATCH 5/6] clocksource: cs5535: " Viresh Kumar
2015-06-08 13:40   ` Viresh Kumar
2015-06-11 15:50   ` Daniel Lezcano
2015-06-11 15:50     ` Daniel Lezcano
2015-06-08 13:40 ` [PATCH 6/6] clocksource: em_sti: " Viresh Kumar
2015-06-08 13:40   ` Viresh Kumar
2015-06-11 15:53   ` Daniel Lezcano
2015-06-11 15:53     ` Daniel Lezcano
2015-06-11 12:08 ` [PATCH 0/6] clockevent: " Daniel Lezcano
2015-06-11 12:08   ` Daniel Lezcano
2015-06-11 13:00   ` Viresh Kumar
2015-06-11 13:00     ` Viresh Kumar

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