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From: broonie@opensource.wolfsonmicro.com (Mark Brown)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH 01/35] mfd: ab8500-gpadc: Implemented suspend/resume
Date: Fri, 22 Feb 2013 10:38:45 +0000	[thread overview]
Message-ID: <20130222103306.GA19796@opensource.wolfsonmicro.com> (raw)
In-Reply-To: <CAPDyKFo0MpP-d7v8v1zwB42sboR3MWT6nUmG=-L0_nayYRY7FQ@mail.gmail.com>

On Thu, Feb 21, 2013 at 11:45:08PM +0100, Ulf Hansson wrote:
> On 20 February 2013 14:19, Mark Brown

> > This doesn't look especially sane...  You're doing a runtime get, taking
> > the lock without releasing it and disabling the regulator.  This is
> > *very* odd, both the changelog and the code need to explain what's going
> > on and why it's safe in a lot more detail here.

> You need to do pm_runtime_get_sync to be able to make sure resources
> (which seems to be only the regulator) are safe to switch off. To my
> understanding this is a generic way to use for being able to switch
> off resources at a device suspend when runtime pm is used in
> conjunction.

Are you sure this actually does what you think it does, especially when
run on modern kernels?
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  parent reply	other threads:[~2013-02-22 10:38 UTC|newest]

Thread overview: 54+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2013-02-15 12:56 [PATCH 00/35] mfd: ab8500: Internal development push Lee Jones
2013-02-15 12:56 ` [PATCH 01/35] mfd: ab8500-gpadc: Implemented suspend/resume Lee Jones
2013-02-20 13:19   ` Mark Brown
2013-02-21 22:45     ` Ulf Hansson
2013-02-22  7:55       ` Lee Jones
2013-02-22 10:38       ` Mark Brown [this message]
2013-02-25  9:27         ` Ulf Hansson
2013-02-25 13:51           ` Mark Brown
2013-02-25 14:52             ` Ulf Hansson
2013-02-15 12:56 ` [PATCH 02/35] mfd: ab8500-gpadc: Allow tvout regulator to be missing Lee Jones
2013-02-20 13:23   ` Mark Brown
2013-02-20 16:38     ` Lee Jones
2013-02-15 12:56 ` [PATCH 03/35] mfd: ab8500-gpadc: Reread on failure Lee Jones
2013-02-15 12:56 ` [PATCH 04/35] mfd: ab8500-gpadc: Add gpadc hw conversion Lee Jones
2013-02-15 12:56 ` [PATCH 05/35] mfd: ab8500-core: APE Interrupts are not cleared Lee Jones
2013-02-15 12:56 ` [PATCH 06/35] mfd: ab8500-core: Sysfs chip id modification Lee Jones
2013-02-19 22:04   ` Arnd Bergmann
2013-02-20  8:13     ` Lee Jones
2013-02-20  8:53       ` Marcus Cooper
2013-02-20 10:43         ` Lee Jones
2013-02-15 12:56 ` [PATCH 07/35] mfd: ab8500-debug: Print banks in hex Lee Jones
2013-02-15 12:56 ` [PATCH 08/35] mfd: ab8500-debug: Function to save all ABB registers to mem Lee Jones
2013-02-15 12:56 ` [PATCH 09/35] mfd: ab8500-core: Add ADC support for ab8540 Lee Jones
2013-02-15 12:56 ` [PATCH 10/35] mfd: ab8500-core: Rework MFD sub-device initialisation structures Lee Jones
2013-02-19 22:07   ` Arnd Bergmann
2013-02-20  8:09     ` Lee Jones
2013-02-15 12:56 ` [PATCH 11/35] mfd: ab8500-core: Add Interrupt support for ab8540 Lee Jones
2013-02-15 12:56 ` [PATCH 12/35] mfd: ab8500-debug: Better error handling on crash Lee Jones
2013-02-15 12:56 ` [PATCH 13/35] mfd: ab8500-debug: Add wake-up info Lee Jones
2013-02-15 12:56 ` [PATCH 14/35] mfd: ab8500-sysctrl: Error check clean up Lee Jones
2013-02-15 12:56 ` [PATCH 15/35] mfd: ab8500-debugfs: Add tests for ab8540 based platform initialisations Lee Jones
2013-02-15 12:56 ` [PATCH 16/35] mfd: ab8500: Add more platform checks Lee Jones
2013-02-15 12:56 ` [PATCH 17/35] mfd: ab8500: Introduce AB8540 cuts definition Lee Jones
2013-02-15 12:56 ` [PATCH 18/35] mfd: ab8500-sysctrl: Update correct turn on status Lee Jones
2013-02-15 12:56 ` [PATCH 19/35] mfd: ab8500-debug: Add support for ab8505 and ab9540 Lee Jones
2013-02-15 12:56 ` [PATCH 20/35] mfd: ab8500-sysctrl: Add new reset function Lee Jones
2013-02-15 12:56 ` [PATCH 21/35] mfd: ab8500-gpadc: Add support for the AB8540 Lee Jones
2013-02-15 12:56 ` [PATCH 22/35] mfd: ab8500-debug: " Lee Jones
2013-02-15 12:56 ` [PATCH 23/35] mfd: ab8500-gpadc: Optimise GPADC driver Lee Jones
2013-02-15 12:56 ` [PATCH 24/35] mfd: ab8500: Remove unnecessary 'struct device' declaration Lee Jones
2013-02-25 14:33   ` Arnd Bergmann
2013-02-25 14:49     ` Lee Jones
2013-02-25 16:27       ` Arnd Bergmann
2013-02-15 12:56 ` [PATCH 25/35] mfd: ab8500-core: Add additional resources to ab8505_iddet_resources Lee Jones
2013-02-15 12:56 ` [PATCH 26/35] mfd: ab8500-sysctrl: AB8505 doesn't have SYSCLKREQ5..8 Lee Jones
2013-02-15 12:56 ` [PATCH 27/35] mfd: ab8500-debugfs: Dump sim registers Lee Jones
2013-02-15 12:56 ` [PATCH 28/35] mfd: ab8500-debug: Add ADC input channel usb_id in debugfs Lee Jones
2013-02-15 12:57 ` [PATCH 29/35] mfd: ab8500-core: Show turn on status at boot Lee Jones
2013-02-15 12:57 ` [PATCH 30/35] mfd: ab8500-debugfs: Change AB8500 debug permissions Lee Jones
2013-02-15 12:57 ` [PATCH 31/35] mfd: ab8500-debug: Add register map for ab8540 Lee Jones
2013-02-15 12:57 ` [PATCH 32/35] mfd: ab8500-core: Add abx500-clk as an mfd child device Lee Jones
2013-02-15 12:57 ` [PATCH 33/35] mfd: ab8500-debug: Add explicit dependencies Lee Jones
2013-02-15 12:57 ` [PATCH 34/35] mfd: ab8500-debug: Convert to kstrtoul_from_user Lee Jones
2013-02-15 12:57 ` [PATCH 35/35] mfd: ab8500-core: Hierarchical interrupt registers Lee Jones

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