From: john stultz <johnstul@us.ibm.com>
To: Magnus Damm <magnus.damm@gmail.com>
Cc: linux-kernel@vger.kernel.org, lethal@linux-sh.org,
linux-sh@vger.kernel.org
Subject: Re: [PATCH] clocksource: sh_tmu: __clocksource_updatefreq_hz()
Date: Thu, 28 Apr 2011 20:55:43 +0000 [thread overview]
Message-ID: <1304024143.2971.106.camel@work-vm> (raw)
In-Reply-To: <20110425133837.4242.80952.sendpatchset@t400s>
On Mon, 2011-04-25 at 22:38 +0900, Magnus Damm wrote:
> From: Magnus Damm <damm@opensource.se>
>
> This patch updates the clocksource part of the TMU driver
> to make use of the __clocksource_updatefreq_hz() function.
>
> Without this patch the old code uses clocksource_register()
> together with a hack that assumes a never changing clock rate
> (see clk_enable(), clk_get_rate() and clk_disable()).
>
> The patch uses clocksource_register_hz() with 1 Hz as initial
> value, then lets the ->enable() callback update the value
> with __clocksource_updatefreq_hz() once the struct clk has
> been enabled and the frequency is stable.
>
> Signed-off-by: Magnus Damm <damm@opensource.se>
Acked-by: John Stultz <johnstul@us.ibm.com>
If these don't get picked up for 2.6.40, I'll queue them myself.
thanks
-john
WARNING: multiple messages have this Message-ID (diff)
From: john stultz <johnstul@us.ibm.com>
To: Magnus Damm <magnus.damm@gmail.com>
Cc: linux-kernel@vger.kernel.org, lethal@linux-sh.org,
linux-sh@vger.kernel.org
Subject: Re: [PATCH] clocksource: sh_tmu: __clocksource_updatefreq_hz() update
Date: Thu, 28 Apr 2011 13:55:43 -0700 [thread overview]
Message-ID: <1304024143.2971.106.camel@work-vm> (raw)
In-Reply-To: <20110425133837.4242.80952.sendpatchset@t400s>
On Mon, 2011-04-25 at 22:38 +0900, Magnus Damm wrote:
> From: Magnus Damm <damm@opensource.se>
>
> This patch updates the clocksource part of the TMU driver
> to make use of the __clocksource_updatefreq_hz() function.
>
> Without this patch the old code uses clocksource_register()
> together with a hack that assumes a never changing clock rate
> (see clk_enable(), clk_get_rate() and clk_disable()).
>
> The patch uses clocksource_register_hz() with 1 Hz as initial
> value, then lets the ->enable() callback update the value
> with __clocksource_updatefreq_hz() once the struct clk has
> been enabled and the frequency is stable.
>
> Signed-off-by: Magnus Damm <damm@opensource.se>
Acked-by: John Stultz <johnstul@us.ibm.com>
If these don't get picked up for 2.6.40, I'll queue them myself.
thanks
-john
next prev parent reply other threads:[~2011-04-28 20:55 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-04-25 13:38 [PATCH] clocksource: sh_tmu: __clocksource_updatefreq_hz() update Magnus Damm
2011-04-25 13:38 ` Magnus Damm
2011-04-28 20:55 ` john stultz [this message]
2011-04-28 20:55 ` john stultz
2011-05-23 5:38 ` Paul Mundt
2011-05-23 5:38 ` Paul Mundt
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