From: broonie@opensource.wolfsonmicro.com (Mark Brown)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH 1/2] AB3100 regulator support v3
Date: Wed, 2 Sep 2009 22:55:33 +0100 [thread overview]
Message-ID: <20090902215533.GA18527@opensource.wolfsonmicro.com> (raw)
In-Reply-To: <63386a3d0909021437pe94b5a5m20a63fbad396cd13@mail.gmail.com>
On Wed, Sep 02, 2009 at 11:37:00PM +0200, Linus Walleij wrote:
> The sleep settings are driven by two HW lines, so a regulator
> can react by suspending the regulator on line A or B disjunct
> either (logical ||) or both (logical &&). (You don't alter that in
> runtime so no API has been developed here.)
OK, that's fine - it's setting things outside the normal API flow which
is all that I was asking.
> And I don't see any way for the core (set_machine_constraints)
> to set regulators to *off* by default if they happen to be on at
> boot.
That'd be a boot_off constraint if someone requires it. So far nobody
has - there's not going to be many cases where it's appropriate to do
so, normally either you want to leave the supplies on for the device
driver that's taking control of the device or it does no harm to wait
till the end of init.
prev parent reply other threads:[~2009-09-02 21:55 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-08-31 22:04 [PATCH 1/2] AB3100 regulator support v3 Linus Walleij
2009-09-02 17:24 ` Mark Brown
2009-09-02 21:37 ` Linus Walleij
2009-09-02 21:55 ` Mark Brown [this message]
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