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From: ulf.hansson@linaro.org (Ulf Hansson)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH 0/3] clk: Provide option to unprepare unused clocks at late init
Date: Wed, 16 Jan 2013 09:54:19 +0100	[thread overview]
Message-ID: <CAPDyKFq+xQPnyXX-N7Wnst-8YCtcVCLcz8Z0T4jGJKD2KmvTBw@mail.gmail.com> (raw)
In-Reply-To: <CACRpkdbCuDxszPZ-VYxhbNUSvyGM=rGw4h5Uy8LfqDcY0V-Dyg@mail.gmail.com>

On 20 December 2012 20:17, Linus Walleij <linus.walleij@linaro.org> wrote:
> On Wed, Dec 19, 2012 at 12:16 AM, Ulf Hansson
> <ulf.hansson@stericsson.com> wrote:
>
>> The disable_unused sequence executed at late init, is already handling the
>> fast unused ungated clocks to be gated. This patchset extends this sequence to
>> include the slow unused prepared clocks to be unprepared.
>>
>> The default behavior will not change in this patchset. To unprepare unused
>> clocks during the disable_unused sequence, the clk_hw needs to implement
>> the new optional callback, is_prepared.
>>
>> The motivation for this patchset is to save power. Clocks that is from
>> bootloaders prepared|enabled, but not used should be unprepared|disabled.
>
> This has a nice symmetrical touch to it and looks allright to me, so
> Acked-by: Linus Walleij <linus.walleij@linaro.org>
>
> Yours,
> Linus Walleij

Hi Mike,

Just a kind reminder on this, could this be merged for 3.9?

I have a patch for ux500 that make use of this new feature, so it is
of course fully tested.
My plan was to send this patch separately, but if you like to see a
"proof of concept" I can include it into this patchset!?

Thanks!
Ulf Hansson

      reply	other threads:[~2013-01-16  8:54 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2012-12-18 23:16 [PATCH 0/3] clk: Provide option to unprepare unused clocks at late init Ulf Hansson
2012-12-18 23:16 ` [PATCH 1/3] clk: Introduce optional is_prepared callback Ulf Hansson
2012-12-18 23:16 ` [PATCH 2/3] clk: Unprepare the unused prepared slow clocks at late init Ulf Hansson
2012-12-18 23:16 ` [PATCH 3/3] clk: Introduce optional unprepare_unused callback Ulf Hansson
2012-12-20 19:17 ` [PATCH 0/3] clk: Provide option to unprepare unused clocks at late init Linus Walleij
2013-01-16  8:54   ` Ulf Hansson [this message]

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