From: Sascha Hauer <s.hauer-bIcnvbaLZ9MEGnE8C9+IrQ@public.gmane.org>
To: Robin Gong <b38343-KZfg59tc24xl57MIdRCFDg@public.gmane.org>
Cc: Shawn Guo <shawn.guo-KZfg59tc24xl57MIdRCFDg@public.gmane.org>,
robh+dt-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org,
pawel.moll-5wv7dgnIgG8@public.gmane.org,
mark.rutland-5wv7dgnIgG8@public.gmane.org,
ijc+devicetree-KcIKpvwj1kUDXYZnReoRVg@public.gmane.org,
galak-sgV2jX0FEOL9JmXXK+q4OQ@public.gmane.org,
kernel-bIcnvbaLZ9MEGnE8C9+IrQ@public.gmane.org,
sre-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org,
dbaryshkov-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org,
dwmw2-wEGCiKHe2LqWVfeAwA7xHQ@public.gmane.org,
grant.likely-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org,
linux-lFZ/pmaqli7XmaaqVzeoHQ@public.gmane.org,
devicetree-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
linux-pm-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
linux-arm-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org
Subject: Re: [PATCH v2 1/3] ARM: dts: imx6: add pm_power_off support for i.mx6 chips
Date: Wed, 17 Sep 2014 08:06:49 +0200 [thread overview]
Message-ID: <20140917060649.GJ4992@pengutronix.de> (raw)
In-Reply-To: <20140917034514.GF27452@Robin-OptiPlex-780>
On Wed, Sep 17, 2014 at 11:45:15AM +0800, Robin Gong wrote:
> On Wed, Sep 17, 2014 at 10:10:45AM +0800, Shawn Guo wrote:
> > On Fri, Sep 12, 2014 at 04:48:57PM +0800, Robin Gong wrote:
> > > All chips of i.mx6 can be powered off by programming SNVS.
> > > For example :
> > > On i.mx6q-sabresd board, PMIC_ON_REQ connect with external
> > > pmic ON/OFF pin, that will cause the whole PMIC powered off
> > > except VSNVS. And system can restart once PMIC_ON_REQ goes
> > > high by push POWRER key.
> >
> > What's the behavior for those boards on which PMIC_ON_REQ isn't
> > connected to anywhere?
> >
> System can't be powered off if not connect PMIC_ON_REQ. Although all of our
> reference design for i.mx6 chips are connecting PMIC_ON_REQ with external
> PMIC, we need consider others may not use external PMIC. I'll add the info
> into commit log or Kconfig.
You should add the information to the dtsi file in form of a
status = "disabled" property so that boards that actually have the
feature can enable it.
Sascha
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next prev parent reply other threads:[~2014-09-17 6:06 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-09-12 8:48 [PATCH v2 0/3] add power off driver for i.mx6 Robin Gong
2014-09-12 8:48 ` [PATCH v2 1/3] ARM: dts: imx6: add pm_power_off support for i.mx6 chips Robin Gong
[not found] ` <1410511739-31122-2-git-send-email-b38343-KZfg59tc24xl57MIdRCFDg@public.gmane.org>
2014-09-17 1:47 ` Shawn Guo
2014-09-17 3:32 ` Robin Gong
2014-09-17 2:10 ` Shawn Guo
2014-09-17 3:45 ` Robin Gong
2014-09-17 4:50 ` Shawn Guo
2014-09-17 6:06 ` Sascha Hauer [this message]
[not found] ` <20140917060649.GJ4992-bIcnvbaLZ9MEGnE8C9+IrQ@public.gmane.org>
2014-09-17 7:17 ` Robin Gong
2014-09-17 7:24 ` Sascha Hauer
[not found] ` <20140917072437.GP4992-bIcnvbaLZ9MEGnE8C9+IrQ@public.gmane.org>
2014-09-17 8:16 ` Robin Gong
2014-09-12 8:48 ` [PATCH v2 2/3] power: reset: imx-snvs-poweroff: add power off driver for i.mx6 Robin Gong
2014-09-17 2:06 ` Shawn Guo
2014-09-17 3:35 ` Robin Gong
2014-09-12 8:48 ` [PATCH v2 3/3] ARM: configs: imx_v6_v7_defconfig: add power off driver Robin Gong
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