From: Tomi Valkeinen <tomi.valkeinen@ti.com>
To: Alexandre Courbot <acourbot@nvidia.com>
Cc: 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>,
Mark Brown <broonie@opensource.wolfsonmicro.com>,
Anton Vorontsov <cbou@mail.ru>,
David Woodhouse <dwmw2@infradead.org>,
Arnd Bergmann <arnd@arndb.de>,
Leela Krishna Amudala <l.krishna@samsung.com>,
linux-tegra@vger.kernel.org, linux-kernel@vger.kernel.org,
linux-fbdev@vger.kernel.org, devicetree-discuss@lists.ozlabs.org,
linux-pm@vger.kernel.org, linux-doc@vger.kernel.org
Subject: Re: [PATCH v6 0/4] Runtime Interpreted Power Sequences
Date: Thu, 13 Sep 2012 05:50:47 +0000 [thread overview]
Message-ID: <1347515447.7471.12.camel@lappyti> (raw)
In-Reply-To: <1347443867-18868-1-git-send-email-acourbot@nvidia.com>
[-- Attachment #1: Type: text/plain, Size: 1432 bytes --]
On Wed, 2012-09-12 at 18:57 +0900, Alexandre Courbot wrote:
> New revision of the power sequences, taking as usual the feedback that was
> kindly provided about the last version.
>
> I think now is a good time to discuss integrating this and to start looking for
> a maintainer who would be willing to merge this into his/her tree (I am
> especially thinking about the power framework maintainers, since this is where
> the code is right now. The second patch in this series enables the pwm_backlight
> driver to be used with the device tree, without relying on board-dependent
> callbacks to support complex power sequences. We also plan to use power
> sequences in other Tegra drivers, and other people have expressed interest in
> this work during earlier reviews. See for instance
>
> https://lists.ozlabs.org/pipermail/devicetree-discuss/2012-August/018532.html
>
> and
>
> https://lkml.org/lkml/2012/9/6/270
>
> There is probably some more details to fix and improve, but the current shape
> should be enough to know if we want this and where - therefore any sign from
> a maintainer would be greatly appreciated!
I want to reiterate my opinion that I think power sequences in DT data
is the wrong way to go. Powering sequences are device specific issues
and should be handled in the device driver. But I also think that power
sequences inside the drivers would probably be useful.
Tomi
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WARNING: multiple messages have this Message-ID (diff)
From: Tomi Valkeinen <tomi.valkeinen@ti.com>
To: Alexandre Courbot <acourbot@nvidia.com>
Cc: 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>,
Mark Brown <broonie@opensource.wolfsonmicro.com>,
Anton Vorontsov <cbou@mail.ru>,
David Woodhouse <dwmw2@infradead.org>,
Arnd Bergmann <arnd@arndb.de>,
Leela Krishna Amudala <l.krishna@samsung.com>,
linux-tegra@vger.kernel.org, linux-kernel@vger.kernel.org,
linux-fbdev@vger.kernel.org, devicetree-discuss@lists.ozlabs.org,
linux-pm@vger.kernel.org, linux-doc@vger.kernel.org
Subject: Re: [PATCH v6 0/4] Runtime Interpreted Power Sequences
Date: Thu, 13 Sep 2012 08:50:47 +0300 [thread overview]
Message-ID: <1347515447.7471.12.camel@lappyti> (raw)
In-Reply-To: <1347443867-18868-1-git-send-email-acourbot@nvidia.com>
[-- Attachment #1: Type: text/plain, Size: 1432 bytes --]
On Wed, 2012-09-12 at 18:57 +0900, Alexandre Courbot wrote:
> New revision of the power sequences, taking as usual the feedback that was
> kindly provided about the last version.
>
> I think now is a good time to discuss integrating this and to start looking for
> a maintainer who would be willing to merge this into his/her tree (I am
> especially thinking about the power framework maintainers, since this is where
> the code is right now. The second patch in this series enables the pwm_backlight
> driver to be used with the device tree, without relying on board-dependent
> callbacks to support complex power sequences. We also plan to use power
> sequences in other Tegra drivers, and other people have expressed interest in
> this work during earlier reviews. See for instance
>
> https://lists.ozlabs.org/pipermail/devicetree-discuss/2012-August/018532.html
>
> and
>
> https://lkml.org/lkml/2012/9/6/270
>
> There is probably some more details to fix and improve, but the current shape
> should be enough to know if we want this and where - therefore any sign from
> a maintainer would be greatly appreciated!
I want to reiterate my opinion that I think power sequences in DT data
is the wrong way to go. Powering sequences are device specific issues
and should be handled in the device driver. But I also think that power
sequences inside the drivers would probably be useful.
Tomi
[-- Attachment #2: This is a digitally signed message part --]
[-- Type: application/pgp-signature, Size: 836 bytes --]
next prev parent reply other threads:[~2012-09-13 5:50 UTC|newest]
Thread overview: 112+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-09-12 9:57 [PATCH v6 0/4] Runtime Interpreted Power Sequences Alexandre Courbot
2012-09-12 9:57 ` Alexandre Courbot
2012-09-12 9:57 ` Alexandre Courbot
2012-09-12 9:57 ` [PATCH v6 2/4] pwm_backlight: use power sequences Alexandre Courbot
2012-09-12 9:57 ` Alexandre Courbot
2012-09-12 9:57 ` Alexandre Courbot
2012-09-12 22:15 ` Stephen Warren
2012-09-12 22:15 ` Stephen Warren
[not found] ` <1347443867-18868-1-git-send-email-acourbot-DDmLM1+adcrQT0dZR+AlfA@public.gmane.org>
2012-09-12 9:57 ` [PATCH v6 1/4] Runtime Interpreted Power Sequences Alexandre Courbot
2012-09-12 9:57 ` Alexandre Courbot
2012-09-12 9:57 ` Alexandre Courbot
2012-09-12 22:07 ` Stephen Warren
2012-09-12 22:07 ` Stephen Warren
2012-09-13 6:02 ` Alex Courbot
2012-09-13 6:02 ` Alex Courbot
2012-09-13 15:44 ` Stephen Warren
2012-09-13 15:44 ` Stephen Warren
2012-09-13 15:44 ` Stephen Warren
[not found] ` <1347443867-18868-2-git-send-email-acourbot-DDmLM1+adcrQT0dZR+AlfA@public.gmane.org>
2012-09-13 5:45 ` Tomi Valkeinen
2012-09-13 5:45 ` Tomi Valkeinen
2012-09-13 5:45 ` Tomi Valkeinen
2012-09-13 6:08 ` Alex Courbot
2012-09-13 6:08 ` Alex Courbot
2012-09-13 6:22 ` Tomi Valkeinen
2012-09-13 6:22 ` Tomi Valkeinen
2012-09-13 6:36 ` Alex Courbot
2012-09-13 6:36 ` Alex Courbot
2012-09-13 6:54 ` Tomi Valkeinen
2012-09-13 6:54 ` Tomi Valkeinen
2012-09-13 6:54 ` Tomi Valkeinen
2012-09-13 7:00 ` Sascha Hauer
2012-09-13 7:00 ` Sascha Hauer
2012-09-13 7:00 ` Sascha Hauer
[not found] ` <20120913070012.GC6180-bIcnvbaLZ9MEGnE8C9+IrQ@public.gmane.org>
2012-09-13 7:03 ` Tomi Valkeinen
2012-09-13 7:03 ` Tomi Valkeinen
2012-09-13 7:03 ` Tomi Valkeinen
2012-09-13 7:18 ` Sascha Hauer
2012-09-13 7:18 ` Sascha Hauer
2012-09-13 7:18 ` Sascha Hauer
[not found] ` <20120913071829.GE6180-bIcnvbaLZ9MEGnE8C9+IrQ@public.gmane.org>
2012-09-13 7:27 ` Tomi Valkeinen
2012-09-13 7:27 ` Tomi Valkeinen
2012-09-13 7:27 ` Tomi Valkeinen
2012-09-13 7:21 ` Alex Courbot
2012-09-13 7:21 ` Alex Courbot
2012-09-13 7:29 ` Thierry Reding
2012-09-13 7:29 ` Thierry Reding
2012-09-13 7:29 ` Thierry Reding
2012-09-13 7:50 ` Sascha Hauer
2012-09-13 7:50 ` Sascha Hauer
2012-09-13 8:21 ` Alex Courbot
2012-09-13 8:21 ` Alex Courbot
2012-09-13 8:26 ` Thierry Reding
2012-09-13 8:26 ` Thierry Reding
[not found] ` <20120913072920.GA11459-RM9K5IK7kjIQXX3q8xo1gnVAuStQJXxyR5q1nwbD4aMs9pC9oP6+/A@public.gmane.org>
2012-09-13 8:00 ` Tomi Valkeinen
2012-09-13 8:00 ` Tomi Valkeinen
2012-09-13 8:00 ` Tomi Valkeinen
2012-09-13 8:32 ` Thierry Reding
2012-09-13 8:32 ` Thierry Reding
2012-09-13 8:32 ` Thierry Reding
2012-09-13 7:08 ` Alex Courbot
2012-09-13 7:08 ` Alex Courbot
2012-09-13 7:08 ` Alex Courbot
2012-09-13 15:37 ` Stephen Warren
2012-09-13 15:37 ` Stephen Warren
2012-09-13 8:09 ` Mark Brown
2012-09-13 8:09 ` Mark Brown
2012-09-12 9:57 ` [PATCH v6 3/4] tegra: dt: add label to tegra20's PWM Alexandre Courbot
2012-09-12 9:57 ` Alexandre Courbot
2012-09-12 9:57 ` Alexandre Courbot
2012-09-12 9:57 ` [PATCH v6 4/4] tegra: ventana: add pwm backlight DT nodes Alexandre Courbot
2012-09-12 9:57 ` Alexandre Courbot
2012-09-12 9:57 ` Alexandre Courbot
[not found] ` <1347443867-18868-5-git-send-email-acourbot-DDmLM1+adcrQT0dZR+AlfA@public.gmane.org>
2012-09-12 21:23 ` Stephen Warren
2012-09-12 21:23 ` Stephen Warren
2012-09-12 21:23 ` Stephen Warren
2012-09-12 21:27 ` [PATCH v6 0/4] Runtime Interpreted Power Sequences Stephen Warren
2012-09-12 21:27 ` Stephen Warren
[not found] ` <5050FE28.2080502-3lzwWm7+Weoh9ZMKESR00Q@public.gmane.org>
2012-09-12 21:33 ` Anton Vorontsov
2012-09-12 21:33 ` Anton Vorontsov
2012-09-12 21:33 ` Anton Vorontsov
2012-09-13 5:53 ` Alex Courbot
2012-09-13 5:53 ` Alex Courbot
2012-09-13 5:50 ` Tomi Valkeinen [this message]
2012-09-13 5:50 ` Tomi Valkeinen
2012-09-13 6:23 ` Alex Courbot
2012-09-13 6:23 ` Alex Courbot
2012-09-13 6:25 ` Mark Brown
2012-09-13 6:25 ` Mark Brown
2012-09-13 6:42 ` Alex Courbot
2012-09-13 6:42 ` Alex Courbot
2012-09-13 7:19 ` Mark Brown
2012-09-13 7:19 ` Mark Brown
2012-09-13 7:19 ` Mark Brown
2012-09-13 7:26 ` Alex Courbot
2012-09-13 7:26 ` Alex Courbot
2012-09-13 7:29 ` Mark Brown
2012-09-13 7:29 ` Mark Brown
2012-09-13 7:29 ` Mark Brown
2012-09-13 15:24 ` Stephen Warren
2012-09-13 15:24 ` Stephen Warren
2012-09-19 3:01 ` Mark Brown
2012-09-19 3:01 ` Mark Brown
[not found] ` <5051FAC5.40501-3lzwWm7+Weoh9ZMKESR00Q@public.gmane.org>
2012-10-03 8:24 ` Alex Courbot
2012-10-03 8:24 ` Alex Courbot
2012-10-03 8:24 ` Alex Courbot
[not found] ` <506BF62F.6040308-DDmLM1+adcrQT0dZR+AlfA@public.gmane.org>
2012-10-03 15:30 ` Stephen Warren
2012-10-03 15:30 ` Stephen Warren
2012-10-03 15:30 ` Stephen Warren
2012-09-13 6:42 ` Tomi Valkeinen
2012-09-13 6:42 ` Tomi Valkeinen
2012-09-13 6:48 ` Tomi Valkeinen
2012-09-13 6:48 ` Tomi Valkeinen
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