From: Robin Gong <b38343-KZfg59tc24xl57MIdRCFDg@public.gmane.org>
To: Sascha Hauer <s.hauer-bIcnvbaLZ9MEGnE8C9+IrQ@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 15:17:38 +0800 [thread overview]
Message-ID: <20140917071736.GA5545@Robin-OptiPlex-780> (raw)
In-Reply-To: <20140917060649.GJ4992-bIcnvbaLZ9MEGnE8C9+IrQ@public.gmane.org>
On Wed, Sep 17, 2014 at 08:06:49AM +0200, Sascha Hauer wrote:
> 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
Hi Sacha, but that's SOC level feature and it's harmless even if others don't
want to use this pin to control external PMIC.
>
> --
> Pengutronix e.K. | |
> Industrial Linux Solutions | http://www.pengutronix.de/ |
> Peiner Str. 6-8, 31137 Hildesheim, Germany | Phone: +49-5121-206917-0 |
> Amtsgericht Hildesheim, HRA 2686 | Fax: +49-5121-206917-5555 |
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WARNING: multiple messages have this Message-ID (diff)
From: b38343@freescale.com (Robin Gong)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH v2 1/3] ARM: dts: imx6: add pm_power_off support for i.mx6 chips
Date: Wed, 17 Sep 2014 15:17:38 +0800 [thread overview]
Message-ID: <20140917071736.GA5545@Robin-OptiPlex-780> (raw)
In-Reply-To: <20140917060649.GJ4992@pengutronix.de>
On Wed, Sep 17, 2014 at 08:06:49AM +0200, Sascha Hauer wrote:
> 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
Hi Sacha, but that's SOC level feature and it's harmless even if others don't
want to use this pin to control external PMIC.
>
> --
> Pengutronix e.K. | |
> Industrial Linux Solutions | http://www.pengutronix.de/ |
> Peiner Str. 6-8, 31137 Hildesheim, Germany | Phone: +49-5121-206917-0 |
> Amtsgericht Hildesheim, HRA 2686 | Fax: +49-5121-206917-5555 |
WARNING: multiple messages have this Message-ID (diff)
From: Robin Gong <b38343@freescale.com>
To: Sascha Hauer <s.hauer@pengutronix.de>
Cc: Shawn Guo <shawn.guo@freescale.com>, <robh+dt@kernel.org>,
<pawel.moll@arm.com>, <mark.rutland@arm.com>,
<ijc+devicetree@hellion.org.uk>, <galak@codeaurora.org>,
<kernel@pengutronix.de>, <sre@kernel.org>, <dbaryshkov@gmail.com>,
<dwmw2@infradead.org>, <grant.likely@linaro.org>,
<linux@arm.linux.org.uk>, <devicetree@vger.kernel.org>,
<linux-kernel@vger.kernel.org>, <linux-pm@vger.kernel.org>,
<linux-arm-kernel@lists.infradead.org>
Subject: Re: [PATCH v2 1/3] ARM: dts: imx6: add pm_power_off support for i.mx6 chips
Date: Wed, 17 Sep 2014 15:17:38 +0800 [thread overview]
Message-ID: <20140917071736.GA5545@Robin-OptiPlex-780> (raw)
In-Reply-To: <20140917060649.GJ4992@pengutronix.de>
On Wed, Sep 17, 2014 at 08:06:49AM +0200, Sascha Hauer wrote:
> 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
Hi Sacha, but that's SOC level feature and it's harmless even if others don't
want to use this pin to control external PMIC.
>
> --
> Pengutronix e.K. | |
> Industrial Linux Solutions | http://www.pengutronix.de/ |
> Peiner Str. 6-8, 31137 Hildesheim, Germany | Phone: +49-5121-206917-0 |
> Amtsgericht Hildesheim, HRA 2686 | Fax: +49-5121-206917-5555 |
next prev parent reply other threads:[~2014-09-17 7:17 UTC|newest]
Thread overview: 45+ 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 ` Robin Gong
2014-09-12 8:48 ` 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
2014-09-12 8:48 ` Robin Gong
2014-09-12 8:48 ` 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 1:47 ` Shawn Guo
2014-09-17 1:47 ` Shawn Guo
2014-09-17 3:32 ` Robin Gong
2014-09-17 3:32 ` Robin Gong
2014-09-17 3:32 ` Robin Gong
2014-09-17 2:10 ` Shawn Guo
2014-09-17 2:10 ` Shawn Guo
2014-09-17 2:10 ` Shawn Guo
2014-09-17 3:45 ` Robin Gong
2014-09-17 3:45 ` Robin Gong
2014-09-17 3:45 ` Robin Gong
2014-09-17 4:50 ` Shawn Guo
2014-09-17 4:50 ` Shawn Guo
2014-09-17 4:50 ` Shawn Guo
2014-09-17 6:06 ` Sascha Hauer
2014-09-17 6:06 ` Sascha Hauer
2014-09-17 6:06 ` Sascha Hauer
[not found] ` <20140917060649.GJ4992-bIcnvbaLZ9MEGnE8C9+IrQ@public.gmane.org>
2014-09-17 7:17 ` Robin Gong [this message]
2014-09-17 7:17 ` Robin Gong
2014-09-17 7:17 ` Robin Gong
2014-09-17 7:24 ` Sascha Hauer
2014-09-17 7:24 ` Sascha Hauer
2014-09-17 7:24 ` Sascha Hauer
[not found] ` <20140917072437.GP4992-bIcnvbaLZ9MEGnE8C9+IrQ@public.gmane.org>
2014-09-17 8:16 ` Robin Gong
2014-09-17 8:16 ` Robin Gong
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
2014-09-12 8:48 ` Robin Gong
2014-09-12 8:48 ` Robin Gong
2014-09-17 2:06 ` Shawn Guo
2014-09-17 2:06 ` Shawn Guo
2014-09-17 2:06 ` Shawn Guo
2014-09-17 3:35 ` Robin Gong
2014-09-17 3:35 ` Robin Gong
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
2014-09-12 8:48 ` Robin Gong
2014-09-12 8:48 ` Robin Gong
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