From: Marc Zyngier <marc.zyngier@arm.com>
To: Santosh Shilimkar <santosh.shilimkar@ti.com>
Cc: "linux-arm-kernel@lists.infradead.org"
<linux-arm-kernel@lists.infradead.org>,
"linux-omap@vger.kernel.org" <linux-omap@vger.kernel.org>
Subject: Re: [PATCH] ARM: architected timers: Mark the clockevent with the C3_STOP feature
Date: Wed, 04 Jul 2012 10:56:54 +0100 [thread overview]
Message-ID: <4FF41366.4060504@arm.com> (raw)
In-Reply-To: <1341395673-29660-1-git-send-email-santosh.shilimkar@ti.com>
On 04/07/12 10:54, Santosh Shilimkar wrote:
> ARM arch timers stop in low power state and hence can not wakeup CPUs in
> deeper idle states when used as cloc event devices. Marking these clock event
> devices with C3_STOP so that during lowpower states, the tick is managed by
> wakeup capable broadcast timer.
>
> Cc: Marc Zyngier <marc.zyngier@arm.com>
> Signed-off-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
Hi Santosh,
I already have queued an identical patch from Lorenzo.
Thanks for reminder anyway!
M.
> ---
> arch/arm/kernel/arch_timer.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/arch/arm/kernel/arch_timer.c b/arch/arm/kernel/arch_timer.c
> index dd58035..df44c8c 100644
> --- a/arch/arm/kernel/arch_timer.c
> +++ b/arch/arm/kernel/arch_timer.c
> @@ -137,7 +137,7 @@ static int __cpuinit arch_timer_setup(struct clock_event_device *clk)
> /* Be safe... */
> arch_timer_disable();
>
> - clk->features = CLOCK_EVT_FEAT_ONESHOT;
> + clk->features = CLOCK_EVT_FEAT_ONESHOT | CLOCK_EVT_FEAT_C3STOP;
> clk->name = "arch_sys_timer";
> clk->rating = 450;
> clk->set_mode = arch_timer_set_mode;
--
Jazz is not dead. It just smells funny...
WARNING: multiple messages have this Message-ID (diff)
From: marc.zyngier@arm.com (Marc Zyngier)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH] ARM: architected timers: Mark the clockevent with the C3_STOP feature
Date: Wed, 04 Jul 2012 10:56:54 +0100 [thread overview]
Message-ID: <4FF41366.4060504@arm.com> (raw)
In-Reply-To: <1341395673-29660-1-git-send-email-santosh.shilimkar@ti.com>
On 04/07/12 10:54, Santosh Shilimkar wrote:
> ARM arch timers stop in low power state and hence can not wakeup CPUs in
> deeper idle states when used as cloc event devices. Marking these clock event
> devices with C3_STOP so that during lowpower states, the tick is managed by
> wakeup capable broadcast timer.
>
> Cc: Marc Zyngier <marc.zyngier@arm.com>
> Signed-off-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
Hi Santosh,
I already have queued an identical patch from Lorenzo.
Thanks for reminder anyway!
M.
> ---
> arch/arm/kernel/arch_timer.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/arch/arm/kernel/arch_timer.c b/arch/arm/kernel/arch_timer.c
> index dd58035..df44c8c 100644
> --- a/arch/arm/kernel/arch_timer.c
> +++ b/arch/arm/kernel/arch_timer.c
> @@ -137,7 +137,7 @@ static int __cpuinit arch_timer_setup(struct clock_event_device *clk)
> /* Be safe... */
> arch_timer_disable();
>
> - clk->features = CLOCK_EVT_FEAT_ONESHOT;
> + clk->features = CLOCK_EVT_FEAT_ONESHOT | CLOCK_EVT_FEAT_C3STOP;
> clk->name = "arch_sys_timer";
> clk->rating = 450;
> clk->set_mode = arch_timer_set_mode;
--
Jazz is not dead. It just smells funny...
next prev parent reply other threads:[~2012-07-04 9:56 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-07-04 9:54 [PATCH] ARM: architected timers: Mark the clockevent with the C3_STOP feature Santosh Shilimkar
2012-07-04 9:54 ` Santosh Shilimkar
2012-07-04 9:56 ` Marc Zyngier [this message]
2012-07-04 9:56 ` Marc Zyngier
2012-07-04 10:00 ` Shilimkar, Santosh
2012-07-04 10:00 ` Shilimkar, Santosh
2012-07-04 10:26 ` Russell King - ARM Linux
2012-07-04 10:26 ` Russell King - ARM Linux
2012-07-04 10:41 ` Shilimkar, Santosh
2012-07-04 10:41 ` Shilimkar, Santosh
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