Re: [PATCH v6 0/4] Runtime Interpreted Power Sequences

From: Tomi Valkeinen
Date: Thu Sep 13 2012 - 01:50:48 EST


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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