From: Mark Brown <broonie@opensource.wolfsonmicro.com>
To: Alex Courbot <acourbot@nvidia.com>
Cc: "Heiko Stübner" <heiko@sntech.de>,
"Stephen Warren" <swarren@nvidia.com>,
"Thierry Reding" <thierry.reding@avionic-design.de>,
"Simon Glass" <sjg@chromium.org>,
"Grant Likely" <grant.likely@secretlab.ca>,
"Rob Herring" <rob.herring@calxeda.com>,
"Anton Vorontsov" <cbou@mail.ru>,
"David Woodhouse" <dwmw2@infradead.org>,
"Arnd Bergmann" <arnd@arndb.de>,
"Leela Krishna Amudala" <leelakrishna.a@gmail.com>,
"linux-tegra@vger.kernel.org" <linux-tegra@vger.kernel.org>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
"linux-fbdev@vger.kernel.org" <linux-fbdev@vger.kernel.org>,
"devicetree-discuss@lists.ozlabs.org"
<devicetree-discuss@lists.ozlabs.org>,
"linux-pm@vger.kernel.org" <linux-pm@vger.kernel.org>,
"linux-doc@vger.kernel.org" <linux-doc@vger.kernel.org>
Subject: Re: [PATCH v5 1/4] Runtime Interpreted Power Sequences
Date: Fri, 07 Sep 2012 08:15:03 +0000 [thread overview]
Message-ID: <20120907081501.GA17749@opensource.wolfsonmicro.com> (raw)
In-Reply-To: <1887927.1deN8M9siP@percival>
On Fri, Sep 07, 2012 at 05:04:24PM +0900, Alex Courbot wrote:
> If e.g. the power on sequence fails at step N (of M steps for that sequence),
> one could try playing the corresponding power off sequence (either completely
> of from step M - N), but then again we cannot rely on sequences to be
> perfectly symetrical. Maybe this is more something for the calling driver to
> check for and control?
That had been my thought too - depending on what the sequence is for it
may be that the corrective action is something very different to
reversing the sequence, for example a device reset may be required.
WARNING: multiple messages have this Message-ID (diff)
From: Mark Brown <broonie@opensource.wolfsonmicro.com>
To: Alex Courbot <acourbot@nvidia.com>
Cc: "Heiko Stübner" <heiko@sntech.de>,
"Stephen Warren" <swarren@nvidia.com>,
"Thierry Reding" <thierry.reding@avionic-design.de>,
"Simon Glass" <sjg@chromium.org>,
"Grant Likely" <grant.likely@secretlab.ca>,
"Rob Herring" <rob.herring@calxeda.com>,
"Anton Vorontsov" <cbou@mail.ru>,
"David Woodhouse" <dwmw2@infradead.org>,
"Arnd Bergmann" <arnd@arndb.de>,
"Leela Krishna Amudala" <leelakrishna.a@gmail.com>,
"linux-tegra@vger.kernel.org" <linux-tegra@vger.kernel.org>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
"linux-fbdev@vger.kernel.org" <linux-fbdev@vger.kernel.org>,
"devicetree-discuss@lists.ozlabs.org"
<devicetree-discuss@lists.ozlabs.org>,
"linux-pm@vger.kernel.org" <linux-pm@vger.kernel.org>,
"linux-doc@vger.kernel.org" <linux-doc@vger.kernel.org>
Subject: Re: [PATCH v5 1/4] Runtime Interpreted Power Sequences
Date: Fri, 7 Sep 2012 16:15:03 +0800 [thread overview]
Message-ID: <20120907081501.GA17749@opensource.wolfsonmicro.com> (raw)
In-Reply-To: <1887927.1deN8M9siP@percival>
On Fri, Sep 07, 2012 at 05:04:24PM +0900, Alex Courbot wrote:
> If e.g. the power on sequence fails at step N (of M steps for that sequence),
> one could try playing the corresponding power off sequence (either completely
> of from step M - N), but then again we cannot rely on sequences to be
> perfectly symetrical. Maybe this is more something for the calling driver to
> check for and control?
That had been my thought too - depending on what the sequence is for it
may be that the corrective action is something very different to
reversing the sequence, for example a device reset may be required.
next prev parent reply other threads:[~2012-09-07 8:15 UTC|newest]
Thread overview: 42+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-08-31 11:34 [PATCH v5 0/4] Runtime Interpreted Power Sequences Alexandre Courbot
2012-08-31 11:34 ` Alexandre Courbot
2012-08-31 11:34 ` Alexandre Courbot
[not found] ` <1346412846-17102-1-git-send-email-acourbot-DDmLM1+adcrQT0dZR+AlfA@public.gmane.org>
2012-08-31 11:34 ` [PATCH v5 1/4] " Alexandre Courbot
2012-08-31 11:34 ` Alexandre Courbot
2012-08-31 11:34 ` Alexandre Courbot
2012-09-05 17:19 ` Stephen Warren
2012-09-05 17:19 ` Stephen Warren
2012-09-07 8:21 ` Alex Courbot
2012-09-07 8:21 ` Alex Courbot
2012-09-06 14:14 ` Heiko Stübner
2012-09-06 14:14 ` Heiko Stübner
[not found] ` <201209061614.54022.heiko-4mtYJXux2i+zQB+pC5nmwQ@public.gmane.org>
2012-09-07 8:04 ` Alex Courbot
2012-09-07 8:04 ` Alex Courbot
2012-09-07 8:04 ` Alex Courbot
2012-09-07 8:15 ` Mark Brown [this message]
2012-09-07 8:15 ` Mark Brown
2012-09-07 9:08 ` Heiko Stübner
2012-09-07 9:08 ` Heiko Stübner
[not found] ` <201209071108.42083.heiko-4mtYJXux2i+zQB+pC5nmwQ@public.gmane.org>
2012-09-07 16:36 ` Stephen Warren
2012-09-07 16:36 ` Stephen Warren
2012-09-07 16:36 ` Stephen Warren
2012-08-31 11:34 ` [PATCH v5 2/4] pwm_backlight: use power sequences Alexandre Courbot
2012-08-31 11:34 ` Alexandre Courbot
2012-08-31 11:34 ` Alexandre Courbot
[not found] ` <1346412846-17102-3-git-send-email-acourbot-DDmLM1+adcrQT0dZR+AlfA@public.gmane.org>
2012-09-05 17:25 ` Stephen Warren
2012-09-05 17:25 ` Stephen Warren
2012-09-05 17:25 ` Stephen Warren
2012-09-07 8:28 ` Alex Courbot
2012-09-07 8:28 ` Alex Courbot
2012-09-07 8:29 ` Mark Brown
2012-09-07 8:29 ` Mark Brown
2012-09-07 8:29 ` Mark Brown
[not found] ` <20120907082835.GC17749-yzvPICuk2AATkU/dhu1WVueM+bqZidxxQQ4Iyu8u01E@public.gmane.org>
2012-09-07 8:34 ` Alex Courbot
2012-09-07 8:34 ` Alex Courbot
2012-09-07 8:34 ` Alex Courbot
2012-08-31 11:34 ` [PATCH v5 3/4] tegra: dt: add label to tegra20's PWM Alexandre Courbot
2012-08-31 11:34 ` Alexandre Courbot
2012-08-31 11:34 ` Alexandre Courbot
2012-08-31 11:34 ` [PATCH v5 4/4] tegra: ventana: add pwm backlight DT nodes Alexandre Courbot
2012-08-31 11:34 ` Alexandre Courbot
2012-08-31 11:34 ` Alexandre Courbot
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