linux-kernel - Re: [PATCH] ARM: multi_v7_defconfig: Enable CROS_EC

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Date:	Wed, 19 Aug 2015 09:18:34 -0700
From:	Olof Johansson <olof@...om.net>
To:	Javier Martinez Canillas <javier@....samsung.com>
Cc:	arm@...nel.org, Arnd Bergmann <arnd@...db.de>,
	Geert Uytterhoeven <geert@...ux-m68k.org>,
	Doug Anderson <dianders@...omium.org>,
	Gwendal Grignou <gwendal@...omium.org>,
	Sjoerd Simons <sjoerd.simons@...labora.co.uk>,
	linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
	Bartlomiej Zolnierkiewicz <b.zolnierkie@...sung.com>
Subject: Re: [PATCH] ARM: multi_v7_defconfig: Enable CROS_EC_PROTO for
 ChromeOS EC mfd driver

On Wed, Aug 19, 2015 at 12:28:37AM +0200, Javier Martinez Canillas wrote:
> Hello Olof,
> 
> On 08/18/2015 11:46 PM, Olof Johansson wrote:
> > On Tue, Aug 18, 2015 at 09:10:27AM +0200, Javier Martinez Canillas wrote:
> >> The ChromeOS mfd driver (MFD_CROS_EC) select the CROS_EC_PROTO config
> >> symbol because the driver uses some communication helper functions in
> >> drivers/platform/chrome/cros_ec_proto.c but other drivers depends on
> >> CROS_EC_PROTO instead. Mixing select and depends can lead to circular
> >> Kconfig dependencies so the MFD_CROS_EC select should be changed to a
> >> depends on CROS_EC_PROTO instead.
> >>
> >> But doing so will break git bisect-ability since MFD_CROS_EC will not
> >> be enabled anymore unless the default configs first explicitly enable
> >> the CROS_EC_PROTO dependency.
> >>
> >> Signed-off-by: Javier Martinez Canillas <javier@....samsung.com>
> > 
> > Applied to cros/ec-config in arm-soc, which will stay stable in case others
> > need to bring in as a prereq.
> >
> 
> Thanks but Bartolomiej's feedback [0] on my patch that made CROS_EC_PROTO
> a user selectable option was to leave it as a non-visible option and instead
> change the other Kconfig symbols to select CROS_EC_PROTO consistently.
> 
> So tomorrow I'll post a new patch series along those lines that will make
> this patch obsolete since no defconfig changes will be needed.
> 
> IOW, please drop this patch and sorry for the inconvenience.

Done.


-Olof
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