Re: [PATCH V1] regulator: tps65910: Sleep control through externalinputs

[Laxman Dewangan]

On Wednesday 25 January 2012 02:51 AM, Mark Brown wrote:
> * PGP Signed by an unknown key
>
> On Tue, Jan 24, 2012 at 06:07:28PM +0530, Laxman Dewangan wrote:
>
> > E.g. If cpu power is in VDDCTRL rail and if DVFS mechanism of SOC
> > wants that cpu rails to be ON, it will make the control signal
> > active and if it wants to disable the rail then it will deactivate
> > it.
> > The toggling of the control lines depends on how the power
> > management controller is designed for a given SOC and how it
> > manages.
> Hrm, right.  This isn't something that the regulator API usually deals
> with - normally we just deal with things that Linux owns and assume that
> if the hardware is wired up for something else to own the regulator it
> will deal with that completely including the configuration.  If we do
> need to do something here we need to make sure that the normal regulator
> code doesn't try to do anything clever with the regulator which messes
> up the other device.  But I guess this doesn't really have a problem
> with that, someone can always add a further patch optionally specifying
> GPIOs which won't conflict with this approach.
Thanks, I will send patch v2 having all fixes which is discuss in patch V1.
> * Unknown Key
> * 0x6E30FDDD

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