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From: Mattias Wallin <mattias.wallin@stericsson.com>
To: Linus Walleij <linus.walleij@linaro.org>
Cc: Thomas Gleixner <tglx@linutronix.de>,
	"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
	"linux-arm-kernel@lists.infradead.org" 
	<linux-arm-kernel@lists.infradead.org>,
	Lee Jones <lee.jones@linaro.org>
Subject: Re: [PATCH 2/3] clocksource: add DB8500 PRCMU Timer support
Date: Wed, 1 Jun 2011 16:22:06 +0200	[thread overview]
Message-ID: <4DE64B0E.8030008@stericsson.com> (raw)
In-Reply-To: <4DE5F0DB.2050409@stericsson.com>

On 06/01/2011 09:57 AM, Mattias Wallin wrote:
> I'll experiment with it during the day and see how it goes.
It did not work to have the clocksource init as a core_initcall.
I got an null pointer oops in sched_clock_poll.
The lauterbach trace showed that the sched_clock_update_fn was null 
since the poll function was called before the init.

I'll go back to having it called from the platform's struct system_time 
(like in patch 3/3) and place the include file in include/linux.

Thomas, are you ok with having it directly under include/linux or do you 
want me to create a include/linux/clocksource/ directory and place it there?

WARNING: multiple messages have this Message-ID (diff)
From: mattias.wallin@stericsson.com (Mattias Wallin)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH 2/3] clocksource: add DB8500 PRCMU Timer support
Date: Wed, 1 Jun 2011 16:22:06 +0200	[thread overview]
Message-ID: <4DE64B0E.8030008@stericsson.com> (raw)
In-Reply-To: <4DE5F0DB.2050409@stericsson.com>

On 06/01/2011 09:57 AM, Mattias Wallin wrote:
> I'll experiment with it during the day and see how it goes.
It did not work to have the clocksource init as a core_initcall.
I got an null pointer oops in sched_clock_poll.
The lauterbach trace showed that the sched_clock_update_fn was null 
since the poll function was called before the init.

I'll go back to having it called from the platform's struct system_time 
(like in patch 3/3) and place the include file in include/linux.

Thomas, are you ok with having it directly under include/linux or do you 
want me to create a include/linux/clocksource/ directory and place it there?

  reply	other threads:[~2011-06-01 14:22 UTC|newest]

Thread overview: 24+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2011-05-31  8:31 [PATCH 2/3] clocksource: add DB8500 PRCMU Timer support Mattias Wallin
2011-05-31  8:31 ` Mattias Wallin
2011-05-31 10:38 ` Thomas Gleixner
2011-05-31 10:38   ` Thomas Gleixner
2011-05-31 17:00   ` Mattias Wallin
2011-05-31 17:00     ` Mattias Wallin
2011-05-31 21:18     ` Linus Walleij
2011-05-31 21:18       ` Linus Walleij
2011-06-01  7:57       ` Mattias Wallin
2011-06-01  7:57         ` Mattias Wallin
2011-06-01 14:22         ` Mattias Wallin [this message]
2011-06-01 14:22           ` Mattias Wallin
2011-06-01 14:25           ` Russell King - ARM Linux
2011-06-01 14:25             ` Russell King - ARM Linux
2011-06-01 14:31             ` Mattias Wallin
2011-06-01 14:31               ` Mattias Wallin
2011-06-01 14:36               ` Mattias Wallin
2011-06-01 14:36                 ` Mattias Wallin
2011-06-01 23:35               ` Linus Walleij
2011-06-01 23:35                 ` Linus Walleij
2011-06-01  8:30       ` Russell King - ARM Linux
2011-06-01  8:30         ` Russell King - ARM Linux
2011-06-01  8:37         ` Linus Walleij
2011-06-01  8:37           ` Linus Walleij

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