linux-kernel - Re: [PATCH v3 1/1] i2c: add ACPI support for I2C mux ports

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Message-ID: <20151022092740.GA28031@cumulusnetworks.com>
Date:	Thu, 22 Oct 2015 02:27:40 -0700
From:	Dustin Byford <dustin@...ulusnetworks.com>
To:	"Rafael J. Wysocki" <rafael@...nel.org>,
	Mika Westerberg <mika.westerberg@...ux.intel.com>
Cc:	Wolfram Sang <wsa@...-dreams.de>, linux-i2c@...r.kernel.org,
	ACPI Devel Maling List <linux-acpi@...r.kernel.org>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	"Rafael J. Wysocki" <rjw@...ysocki.net>,
	Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
Subject: Re: [PATCH v3 1/1] i2c: add ACPI support for I2C mux ports

On Thu Oct 22 00:39, Rafael J. Wysocki wrote:
> Hi,
> 
> On Wed, Oct 21, 2015 at 11:25 AM, Dustin Byford
> <dustin@...ulusnetworks.com> wrote:
> > On Wed Oct 21 12:08, Mika Westerberg wrote:
> >> I don't really have strong feelings whether it should be the I2C core or
> >> individual drivers setting the ACPI companion. However, it would be nice
> >> to match DT here and they assign their of_node per driver.
> >
> > OK with me, if we can convince Rafael this is a good idea, I'll send a
> > new revision with drivers setting the companion.
> 
> If you can guarantee that ACPI PM or anything like _DS or _SRS will
> never be invoked for the device objects that "inherit" the ACPI
> companion from their parent, it at least is not outright dangerous.

I'm hoping an ack from Mika will suffice, but please let me know if
there's something I can do to verify or help ensure this.

		--Dustin
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