From: Lucas Stach <l.stach@pengutronix.de>
To: Robin Gong <yibin.gong@nxp.com>,
Oleksij Rempel <o.rempel@pengutronix.de>,
Shawn Guo <shawnguo@kernel.org>, Mark Brown <broonie@kernel.org>,
"Rafael J. Wysocki" <rafael.j.wysocki@intel.com>
Cc: Mark Rutland <mark.rutland@arm.com>,
"devicetree@vger.kernel.org" <devicetree@vger.kernel.org>,
Michael Turquette <mturquette@baylibre.com>,
Stephen Boyd <sboyd@codeaurora.org>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
Liam Girdwood <lgirdwood@gmail.com>,
Rob Herring <robh+dt@kernel.org>,
dl-linux-imx <linux-imx@nxp.com>,
"kernel@pengutronix.de" <kernel@pengutronix.de>,
"A.s. Dong" <aisheng.dong@nxp.com>,
Fabio Estevam <fabio.estevam@nxp.com>,
Russell King <linux@armlinux.org.uk>,
Andrew Morton <akpm@linux-foundation.org>,
Leonard Crestez <leonard.crestez@nxp.com>,
"linux-clk@vger.kernel.org" <linux-clk@vger.kernel.org>,
"linux-arm-kernel@lists.infradead.org"
<linux-arm-kernel@lists.infradead.org>
Subject: Re: [PATCH v8 1/6] ARM: imx6q: provide documentation for new fsl,pmic-stby-poweroff property
Date: Mon, 06 Aug 2018 18:49:32 +0200 [thread overview]
Message-ID: <1533574172.2809.11.camel@pengutronix.de> (raw)
In-Reply-To: <DB6PR04MB3223362445234D81383F0D1689200@DB6PR04MB3223.eurprd04.prod.outlook.com>
Am Montag, den 06.08.2018, 02:34 +0000 schrieb Robin Gong:
> > > > Not all boards follow the reference design, that's a fact of
> > > > life.
> > > >
> > > > Please look at the i.MX6Q reference manual. The sequence
> > > > implemented
> > > > in this patchset can be found as a valid way to power off the
> > > > system
> > > > in
> > > > "60.4.3 Power mode transitions" "Normal ON to OFF with external
> > > > PMIC", so there is hardly any way to argue that this is a board
> > > > specific quirk. This is one of the Freescale/NXP recommended
> > > > sequences to
> >
> > turn off the system.
> >
> > > Okay, but could you add one more comment for this solution? RTC
> > > alarm
> > > and ONOFF Button wakeup feature can't be support in this case.
> >
> > Enough to add it in to changelog? or should it go to the binding
> > documentation?
>
> The binding doc is better.
Sorry, I disagree.
A binding is a way to describe a specific hardware layout, it isn't the
right place to advice a hardware designer on the implications of a
specific hardware implementation. The NXP hardware design guide is a
more suitable place for this information.
We also don't mention in random bindings that the system won't be able
to brew a fresh cup of coffee.
Regards,
Lucas
next prev parent reply other threads:[~2018-08-06 16:49 UTC|newest]
Thread overview: 29+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-07-26 9:22 [PATCH v8 0/6] provide power off support for iMX6 with external PMIC Oleksij Rempel
2018-07-26 9:22 ` [PATCH v8 1/6] ARM: imx6q: provide documentation for new fsl,pmic-stby-poweroff property Oleksij Rempel
2018-07-26 9:51 ` Robin Gong
2018-07-26 11:37 ` Oleksij Rempel
2018-07-27 1:51 ` Robin Gong
2018-07-27 8:30 ` Lucas Stach
2018-07-27 8:58 ` Robin Gong
2018-07-27 9:06 ` Oleksij Rempel
2018-07-30 8:03 ` Oleksij Rempel
2018-08-06 2:34 ` Robin Gong
2018-08-06 16:49 ` Lucas Stach [this message]
2018-07-27 8:41 ` Oleksij Rempel
2018-07-26 9:22 ` [PATCH v8 2/6] ARM: imx6: register pm_power_off handler if "fsl,pmic-stby-poweroff" is set Oleksij Rempel
2018-07-27 9:15 ` Robin Gong
2018-07-30 7:57 ` Oleksij Rempel
2018-07-26 9:22 ` [PATCH v8 3/6] kernel/reboot.c: export pm_power_off_prepare Oleksij Rempel
2018-07-26 9:22 ` [PATCH v8 4/6] regulator: pfuze100: add fsl, pmic-stby-poweroff property Oleksij Rempel
2018-07-26 9:22 ` [PATCH v8 5/6] regulator: pfuze100-regulator: provide pm_power_off_prepare handler Oleksij Rempel
2018-07-27 9:32 ` Robin Gong
2018-07-30 7:50 ` Oleksij Rempel
2018-07-30 10:24 ` Mark Brown
2018-08-02 8:11 ` Oleksij Rempel
2018-08-02 8:16 ` Oleksij Rempel
2018-08-06 2:51 ` Robin Gong
2018-07-26 9:22 ` [PATCH v8 6/6] ARM: dts: imx6: RIoTboard provide standby on power off option Oleksij Rempel
2018-07-27 9:33 ` Robin Gong
2018-07-30 7:58 ` Oleksij Rempel
2018-08-02 8:37 ` Oleksij Rempel
2018-07-26 9:48 ` [PATCH v8 0/6] provide power off support for iMX6 with external PMIC Stefan Wahren
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