From: santosh.shilimkar@ti•com (Santosh Shilimkar)
To: linux-arm-kernel@lists•infradead.org
Subject: [PATCH V3 1/5] ARM: tegra: add pending SGI checking API
Date: Thu, 20 Dec 2012 17:36:35 +0530 [thread overview]
Message-ID: <50D2FF4B.5010401@ti.com> (raw)
In-Reply-To: <20121220111409.GH19258@tbergstrom-lnx.Nvidia.com>
On Thursday 20 December 2012 04:44 PM, Peter De Schrijver wrote:
>>>
>>> So why does OMAP4 have working coupled idle without the SGI check then?
>>>
>> Because whenever the OMAP4 CPUs enter into any power states apart from
>> ON, clock-domain force wakeup method us being used to wakeup
>> secondary CPUs. And secondly CPU RET is not supported on purpose because
>> of some known IP block issues.
>>
>
> Aha. That explains indeed why you don't need the check.
>
Just for the information on OMAP5 SOC, CPU RET is supported and the
couple idle works on it without IPI. As I mentioned, we do use
clock-domain force wakeup method for wakeup. Code is out of the
tree hence i didn't mention that in first place.
Regards
Santosh
next prev parent reply other threads:[~2012-12-20 12:06 UTC|newest]
Thread overview: 33+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-12-18 2:30 [PATCH V3 0/5] ARM: tegra20: cpuidle: add power-down state Joseph Lo
2012-12-18 2:30 ` [PATCH V3 1/5] ARM: tegra: add pending SGI checking API Joseph Lo
2012-12-18 2:42 ` Colin Cross
2012-12-18 2:57 ` Joseph Lo
2012-12-18 10:15 ` Peter De Schrijver
2012-12-18 19:36 ` Colin Cross
2012-12-19 1:06 ` Joseph Lo
2012-12-19 3:47 ` Joseph Lo
2012-12-20 7:16 ` Santosh Shilimkar
2012-12-20 9:34 ` Peter De Schrijver
2012-12-20 9:49 ` Santosh Shilimkar
2012-12-20 9:59 ` Peter De Schrijver
2012-12-20 10:24 ` Santosh Shilimkar
2012-12-20 11:14 ` Peter De Schrijver
2012-12-20 12:06 ` Santosh Shilimkar [this message]
2012-12-18 2:30 ` [PATCH V3 2/5] ARM: tegra20: cpuidle: add powered-down state for secondary CPU Joseph Lo
2012-12-18 2:46 ` Colin Cross
2012-12-18 3:06 ` Joseph Lo
2012-12-20 17:43 ` Stephen Warren
2012-12-21 6:36 ` Joseph Lo
2012-12-21 21:04 ` Stephen Warren
2012-12-18 2:30 ` [PATCH V3 3/5] ARM: tegra20: clocks: add CPU low-power function into tegra_cpu_car_ops Joseph Lo
2012-12-20 17:46 ` Stephen Warren
2012-12-21 5:02 ` Joseph Lo
2012-12-21 21:10 ` Stephen Warren
2012-12-18 2:31 ` [PATCH V3 4/5] ARM: tegra20: flowctrl: add support for cpu_suspend_enter/exit Joseph Lo
2012-12-18 2:31 ` [PATCH V3 5/5] ARM: tegra20: cpuidle: apply coupled cpuidle for powered-down mode Joseph Lo
2012-12-18 10:18 ` Peter De Schrijver
2012-12-20 17:54 ` Stephen Warren
2012-12-21 7:10 ` Joseph Lo
2012-12-21 21:06 ` Stephen Warren
2013-01-02 19:05 ` [PATCH V3 0/5] ARM: tegra20: cpuidle: add power-down state Stephen Warren
2013-01-03 8:39 ` Joseph Lo
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