linux-kernel - Re: [PATCH v1 1/3] regulator: act8865: Add support to turn off all outputs

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Message-ID: <CABgxDo+h2AYjAO4darK4+RTXqnhf4OqouGLfF2yuJCpu7r6tLg@mail.gmail.com>
Date:	Sun, 28 Sep 2014 14:00:54 +0200
From:	PERIER Romain <romain.perier@...il.com>
To:	Mark Brown <broonie@...nel.org>
Cc:	Heiko Stübner <heiko@...ech.de>,
	linux-rockchip@...ts.infradead.org,
	linux-arm-kernel@...ts.infradead.org,
	devicetree <devicetree@...r.kernel.org>,
	Liam Girdwood <lgirdwood@...il.com>,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH v1 1/3] regulator: act8865: Add support to turn off all outputs

Hi Mark,


2014-09-28 12:33 GMT+02:00 Mark Brown <broonie@...nel.org>:
> On Sat, Sep 27, 2014 at 04:21:44PM +0000, Romain Perier wrote:
>> When the property "active-semi,system-power-controller" is found in the
>> devicetree, the function pm_power_off is defined. This function sends the
>> rights bit fields to the global off control register. shutdown/poweroff
>> commands are now supported for hardware components which use these PMU.
>
> We really need to come up with a standard property for this and document
> it rather than continuing to add individual device specific properties
> all doing the same thing, and probably also some helper code and/or a
> standard operation for this - there's a lot of drivers implementing the
> same pattern here.

I completly agree about adding a unified and generic property for that purpose.
I already proposed something for that on devicetree ML, see the thread
"Proposal: generic property for system-power-controller".
Unfortunately I did not get replies :) .


>
>> +     if (dev->of_node &&
>> +         of_property_read_bool(dev->of_node,
>> +                               "active-semi,system-power-controller")) {
>> +             act8865_i2c_client = client;
>
> Indentation seems messed up here - tabs vs spaces?

Yes, I really don't understand where the problem is. I use good emacs
settings to be compatible with kernel coding style and git diff does
not show me indent/spaces problems :/ .
Sorry because this is a very boring issue when reviewing patches... I
will investigate ^^

Romain
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