From: Stephen Warren <swarren-3lzwWm7+Weoh9ZMKESR00Q@public.gmane.org>
To: Joseph Lo <josephl-DDmLM1+adcrQT0dZR+AlfA@public.gmane.org>
Cc: linux-tegra-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
linux-arm-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org
Subject: Re: [PATCH V4 0/7] ARM: tegra30: cpuidle: add a powered-down state
Date: Wed, 31 Oct 2012 14:24:41 -0600 [thread overview]
Message-ID: <50918909.60100@wwwdotorg.org> (raw)
In-Reply-To: <1351676481-28425-1-git-send-email-josephl-DDmLM1+adcrQT0dZR+AlfA@public.gmane.org>
On 10/31/2012 03:41 AM, Joseph Lo wrote:
> This adds a "powered-down" state for cpuidle. It's a power gating idle
> mode. It supports the secondary CPUs (i.e., CPU1-CPU3) to go into
> powered-down state independently. When any of the secondary CPUs go into
> this state, it can be power gated alone. There is a limitation on CPU0.
> The CPU0 can go into powered-down state only when all secondary CPU is
> offline. After CPU0 is in powered-down state, the CPU rail can be turned
> off.
>
> All CPUs entering powered-down state is not working. The CPU0 enters this
> state only when secondary CPU is offline. This can be coverd by CPUquiet
> and cluster switching mechanism.
OK, this appears to work OK. I have applied it to Tegra's
for-3.8/cpuidle branch.
> V4:
> * rebased on next-20121031
Purely as an FYI, being based on top of Tegra's for-3.8/cpuidle or
for-next branches would have been even better, although in practice this
time around, there were no conflicts applying it there.
WARNING: multiple messages have this Message-ID (diff)
From: swarren@wwwdotorg.org (Stephen Warren)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH V4 0/7] ARM: tegra30: cpuidle: add a powered-down state
Date: Wed, 31 Oct 2012 14:24:41 -0600 [thread overview]
Message-ID: <50918909.60100@wwwdotorg.org> (raw)
In-Reply-To: <1351676481-28425-1-git-send-email-josephl@nvidia.com>
On 10/31/2012 03:41 AM, Joseph Lo wrote:
> This adds a "powered-down" state for cpuidle. It's a power gating idle
> mode. It supports the secondary CPUs (i.e., CPU1-CPU3) to go into
> powered-down state independently. When any of the secondary CPUs go into
> this state, it can be power gated alone. There is a limitation on CPU0.
> The CPU0 can go into powered-down state only when all secondary CPU is
> offline. After CPU0 is in powered-down state, the CPU rail can be turned
> off.
>
> All CPUs entering powered-down state is not working. The CPU0 enters this
> state only when secondary CPU is offline. This can be coverd by CPUquiet
> and cluster switching mechanism.
OK, this appears to work OK. I have applied it to Tegra's
for-3.8/cpuidle branch.
> V4:
> * rebased on next-20121031
Purely as an FYI, being based on top of Tegra's for-3.8/cpuidle or
for-next branches would have been even better, although in practice this
time around, there were no conflicts applying it there.
next prev parent reply other threads:[~2012-10-31 20:24 UTC|newest]
Thread overview: 22+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-10-31 9:41 [PATCH V4 0/7] ARM: tegra30: cpuidle: add a powered-down state Joseph Lo
2012-10-31 9:41 ` Joseph Lo
[not found] ` <1351676481-28425-1-git-send-email-josephl-DDmLM1+adcrQT0dZR+AlfA@public.gmane.org>
2012-10-31 9:41 ` [PATCH V4 1/7] ARM: tegra: cpuidle: separate cpuidle driver for different chips Joseph Lo
2012-10-31 9:41 ` Joseph Lo
2012-10-31 9:41 ` [PATCH V4 2/7] ARM: tegra: cpuidle: add CPU resume function Joseph Lo
2012-10-31 9:41 ` Joseph Lo
2012-10-31 9:41 ` [PATCH V4 3/7] ARM: tegra30: cpuidle: add powered-down state for secondary CPUs Joseph Lo
2012-10-31 9:41 ` Joseph Lo
[not found] ` <1351676481-28425-4-git-send-email-josephl-DDmLM1+adcrQT0dZR+AlfA@public.gmane.org>
2012-10-31 21:19 ` Colin Cross
2012-10-31 21:19 ` Colin Cross
[not found] ` <CAMbhsRRT60oyecsZqjf196Y=Cog209TwfMCPJ9nyLG+fwu7mqg-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2012-11-01 1:51 ` Joseph Lo
2012-11-01 1:51 ` Joseph Lo
2012-10-31 9:41 ` [PATCH V4 4/7] ARM: tegra30: common: enable csite clock Joseph Lo
2012-10-31 9:41 ` Joseph Lo
2012-10-31 9:41 ` [PATCH V4 5/7] ARM: tegra30: clocks: add CPU low-power function into tegra_cpu_car_ops Joseph Lo
2012-10-31 9:41 ` Joseph Lo
2012-10-31 9:41 ` [PATCH V4 6/7] ARM: tegra30: flowctrl: add cpu_suspend_exter/exit function Joseph Lo
2012-10-31 9:41 ` Joseph Lo
2012-10-31 9:41 ` [PATCH V4 7/7] ARM: tegra30: cpuidle: add powered-down state for CPU0 Joseph Lo
2012-10-31 9:41 ` Joseph Lo
2012-10-31 20:24 ` Stephen Warren [this message]
2012-10-31 20:24 ` [PATCH V4 0/7] ARM: tegra30: cpuidle: add a powered-down state Stephen Warren
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