From: broonie@kernel.org (Mark Brown)
To: linux-arm-kernel@lists.infradead.org
Subject: [RESEND PATCH 2/2] ARM: dts: Add tps65090 FET constraints on Peach Pit and Pi
Date: Mon, 11 Aug 2014 17:02:22 +0100 [thread overview]
Message-ID: <20140811160222.GF17528@sirena.org.uk> (raw)
In-Reply-To: <CAD=FV=XRmNkxXoxWaEfxFADrTgBrOPVX746woxiZoKck1ajwgA@mail.gmail.com>
On Mon, Aug 11, 2014 at 08:57:24AM -0700, Doug Anderson wrote:
> On Mon, Aug 11, 2014 at 4:38 AM, Javier Martinez Canillas
> > After the switch is turned on, a safety timer is started
> > and before this timer times out the output voltage must
> > have reached the input voltage. Otherwise the switch is
> > turned off expecting an overload condition.
> > So using the maximum output voltage slew rate and the timer
> > minimum and maximum timeouts, a voltage constraints can be
> > expressed as bounded limits for the timeout. That is what
> > is used in the board schematics and should be in the DT too.
> I don't understand this, but if you and Mark are happy with it...
I have not looked at this change to my knowledge.
> ...I'm also not 100% certain what the above description has to do with
> this change, but I'll admit to having only skimmed some of the earlier
> conversations.
It's not at all clear to me either looking at the quoted section.
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next prev parent reply other threads:[~2014-08-11 16:02 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-08-11 11:38 [RESEND PATCH 1/2] ARM: dts: Improve Peach Pit and Pi power scheme Javier Martinez Canillas
2014-08-11 11:38 ` [RESEND PATCH 2/2] ARM: dts: Add tps65090 FET constraints on Peach Pit and Pi Javier Martinez Canillas
2014-08-11 15:57 ` Doug Anderson
2014-08-11 16:02 ` Mark Brown [this message]
2014-08-11 17:31 ` Javier Martinez Canillas
2014-08-11 17:47 ` Javier Martinez Canillas
2014-08-11 15:46 ` [RESEND PATCH 1/2] ARM: dts: Improve Peach Pit and Pi power scheme Doug Anderson
2014-08-18 18:27 ` Kukjin Kim
2014-08-18 21:43 ` Javier Martinez Canillas
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