From: Tomasz Figa <t.figa@samsung.com>
To: Kukjin Kim <kgene.kim@samsung.com>
Cc: linux-samsung-soc@vger.kernel.org,
linux-arm-kernel@lists.infradead.org,
linux-kernel@vger.kernel.org,
Marek Szyprowski <m.szyprowski@samsung.com>,
Abhilash Kesavan <kesavan.abhilash@gmail.com>,
Chander Kashyap <k.chander@samsung.com>,
Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>,
Tomasz Figa <tomasz.figa@gmail.com>,
Daniel Lezcano <daniel.lezcano@linaro.org>,
"linux-pm@vger.kernel.org" <linux-pm@vger.kernel.org>
Subject: Re: [PATCH v3] ARM: EXYNOS: Fix suspend/resume sequences
Date: Thu, 17 Jul 2014 16:42:26 +0200 [thread overview]
Message-ID: <53C7E0D2.1050307@samsung.com> (raw)
In-Reply-To: <53C53A1A.6060701@samsung.com>
Hi Kukjin,
On 15.07.2014 16:26, Tomasz Figa wrote:
> Forgot to CC Daniel and linux-pm. Sorry for the noise.
>
> On 15.07.2014 16:24, Tomasz Figa wrote:
>> Due to recent consolidation of Exynos suspend and cpuidle code, some
>> parts of suspend and resume sequences are executed two times, once from
>> exynos_pm_syscore_ops and then from exynos_cpu_pm_notifier() and thus it
>> breaks suspend, at least on Exynos4-based boards. In addition, simple
>> core power down from a cpuidle driver could, in case of CPU 0 could
>> result in calling functions that are specific to suspend and deeper idle
>> states.
>>
>> This patch fixes the issue by moving those operations outside the CPU PM
>> notifier into suspend and AFTR code paths. This leads to a bit of code
>> duplication, but allows additional code simplification, so in the end
>> more code is removed than added.
>>
>> Signed-off-by: Tomasz Figa <t.figa@samsung.com>
>> ---
>> arch/arm/mach-exynos/pm.c | 164 ++++++++++++++++++---------------------
>> drivers/cpuidle/cpuidle-exynos.c | 25 +-----
>> 2 files changed, 80 insertions(+), 109 deletions(-)
>>
Please consider this patch for next pull request with rc fixes. It
replaces following patches posted in this thread:
[PATCH 5/6] ARM: EXYNOS: Fix suspend/resume sequencies
[PATCH v2 5/6] ARM: EXYNOS: Fix suspend/resume sequences
and also similar patch by Chander:
[PATCH 2/2] cpuidle: Exynos: fix cpuidle for all states
Best regards,
Tomasz
next prev parent reply other threads:[~2014-07-17 14:43 UTC|newest]
Thread overview: 40+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-06-24 13:57 [PATCH 0/6] Various Samsung fixes for v3.16-rc3 Tomasz Figa
2014-06-24 13:57 ` [PATCH 1/6] mmc: sdhci-s3c: Fix local I/O clock gating Tomasz Figa
2014-07-14 8:05 ` Jaehoon Chung
2014-06-24 13:57 ` [PATCH 2/6] ARM: EXYNOS: Fix core ID used by platsmp and hotplug code Tomasz Figa
2014-07-08 13:21 ` Kukjin Kim
2014-07-14 9:50 ` Tomasz Figa
2014-07-15 18:00 ` Kukjin Kim
2014-06-24 13:57 ` [PATCH 3/6] clk: samsung: exynos4: Remove SRC_MASK_ISP gates Tomasz Figa
2014-06-25 9:58 ` Daniel Drake
2014-06-25 10:10 ` Tomasz Figa
2014-06-30 13:50 ` Tomasz Figa
2014-06-24 13:57 ` [PATCH 4/6] ARM: SAMSUNG: Restore Samsung PM Debug functionality Tomasz Figa
2014-06-25 10:09 ` Daniel Drake
2014-06-25 11:41 ` Tomasz Figa
2014-06-25 11:43 ` [PATCH v2 " Tomasz Figa
2014-06-26 9:24 ` Daniel Drake
2014-07-14 9:52 ` Tomasz Figa
2014-07-08 13:48 ` [PATCH " Kukjin Kim
2014-07-08 13:54 ` Tomasz Figa
2014-07-15 18:02 ` Kukjin Kim
2014-07-15 23:59 ` Tomasz Figa
2014-07-21 10:30 ` Tomasz Figa
2014-06-24 13:57 ` [PATCH 5/6] ARM: EXYNOS: Fix suspend/resume sequencies Tomasz Figa
2014-06-24 15:33 ` Abhilash Kesavan
2014-07-08 14:02 ` Kukjin Kim
2014-06-24 13:57 ` [PATCH 6/6] ARM: EXYNOS: Register cpuidle device only on Exynos4210 and 5250 Tomasz Figa
2014-07-08 14:15 ` Kukjin Kim
2014-07-08 15:45 ` Bartlomiej Zolnierkiewicz
2014-07-10 13:30 ` Kukjin Kim
2014-06-25 11:52 ` [PATCH v2 5/6] ARM: EXYNOS: Fix suspend/resume sequences Tomasz Figa
2014-07-14 9:54 ` Tomasz Figa
2014-07-15 11:19 ` Bartlomiej Zolnierkiewicz
2014-07-15 12:15 ` Tomasz Figa
2014-07-15 14:24 ` [PATCH v3] " Tomasz Figa
2014-07-15 14:26 ` Tomasz Figa
2014-07-17 14:42 ` Tomasz Figa [this message]
2014-07-21 10:23 ` Tomasz Figa
2014-07-15 17:31 ` [PATCH v2 5/6] " Chander Kashyap
2014-07-01 13:54 ` [PATCH 0/6] Various Samsung fixes for v3.16-rc3 Tomasz Figa
2014-07-07 23:25 ` Kukjin Kim
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