linux-kernel - Re: [PATCH] ACPI / GPIO: Pass index to acpi_get_gpiod_by

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Date:	Wed, 05 Nov 2014 22:00:10 +0100
From:	"Rafael J. Wysocki" <rjw@...ysocki.net>
To:	Mika Westerberg <mika.westerberg@...ux.intel.com>
Cc:	Grant Likely <grant.likely@...retlab.ca>,
	Darren Hart <dvhart@...ux.intel.com>,
	Alexandre Courbot <acourbot@...dia.com>,
	Linus Walleij <linus.walleij@...aro.org>,
	Arnd Bergmann <arnd@...db.de>,
	ACPI Devel Mailing List <linux-acpi@...r.kernel.org>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] ACPI / GPIO: Pass index to acpi_get_gpiod_by_index() when using properties

On Wednesday, November 05, 2014 11:16:22 AM Mika Westerberg wrote:
> On Tue, Nov 04, 2014 at 11:54:41PM +0100, Rafael J. Wysocki wrote:
> > From: Rafael J. Wysocki <rafael.j.wysocki@...el.com>
> > Subject: ACPI / property: Drop size_prop from acpi_dev_get_property_reference()
> > 
> > The size_prop argument of the recently added function
> > acpi_dev_get_property_reference() is not used by the only current
> > caller of that function and is very unlikely to be used at any time
> > going forward.
> > 
> > Namely, for a property whose value is a list of items each containing
> > a references to a device object possibly accompanied by some integers,
> > the number of items in the list can always be computed as the number
> > of elements of type ACPI_TYPE_LOCAL_REFERENCE in the property package.
> > Thus it should never be necessary to provide an additional "cells"
> > property with a value equal to the number of items in that list.
> > 
> > For this reason, drop the size_prop argument from
> > acpi_dev_get_property_reference() and update its caller accordingly.
> > 
> > Link: http://marc.info/?l=linux-kernel&m=141511255610556&w=2
> > Suggested-by: Grant Likely <grant.likely@...aro.org>
> > Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@...el.com>
> 
> Just pulled your latest bleeding-edge (including this patch) and it
> still works fine with both Minnowboards. Feel free to add my:
> 
> Acked-by: Mika Westerberg <mika.westerberg@...ux.intel.com>
> Tested-by: Mika Westerberg <mika.westerberg@...ux.intel.com>

Thanks!

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