linux-kernel - Re: [PATCH v3 4/4] pinctrl: qcom: Add support for reset for apq8064

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Date:	Tue, 2 Sep 2014 10:06:16 -0700
From:	Bjorn Andersson <bjorn.andersson@...ymobile.com>
To:	Linus Walleij <linus.walleij@...aro.org>
CC:	Pramod Gurav <pramod.gurav@...rtplayin.com>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"linux-arm-msm@...r.kernel.org" <linux-arm-msm@...r.kernel.org>,
	"linux-arm-kernel@...ts.infradead.org" 
	<linux-arm-kernel@...ts.infradead.org>,
	"Ivan T. Ivanov" <iivanov@...sol.com>,
	Stephen Boyd <sboyd@...eaurora.org>,
	Andy Gross <agross@...eaurora.org>
Subject: Re: [PATCH v3 4/4] pinctrl: qcom: Add support for reset for apq8064

On Tue 02 Sep 05:36 PDT 2014, Linus Walleij wrote:

> A bit dirty to have this in this driver, but who cares.
> 

Indeed, but we figured the taint was small enough to justify not creating
cross-references to a separate driver.

> Does the APQ8064 accompanying PMIC also have the ability to
> completely shut the system down?
> 

Upon flipping pshold the PMIC will perform either a reset or a shutdown of the
system. Per Stephen's suggestion we can hook the control of this up with a
reboot_notifier in a pmic driver, hence saving ourselves of a reference to (or
from) the PMIC here.

Regards,
Bjorn
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