linux-kernel - Re: [PATCH] gpio: add GPIOF_ values regardless on kconfig settings

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Date:	Tue, 14 Jun 2011 10:13:57 -0600
From:	Grant Likely <grant.likely@...retlab.ca>
To:	Randy Dunlap <randy.dunlap@...cle.com>
Cc:	Mark Brown <broonie@...nsource.wolfsonmicro.com>,
	Stephen Rothwell <sfr@...b.auug.org.au>,
	alsa-devel@...a-project.org, Dmitry Artamonow <mad_soft@...ox.ru>,
	x86@...nel.org, LKML <linux-kernel@...r.kernel.org>,
	linux-next@...r.kernel.org, Harald Welte <laforge@...fiish.org>
Subject: Re: [PATCH] gpio: add GPIOF_ values regardless on kconfig settings

On Tue, Jun 14, 2011 at 09:12:11AM -0700, Randy Dunlap wrote:
> On Sun, 05 Jun 2011 20:45:43 -0700 Randy Dunlap wrote:
> 
> > On 06/03/11 10:42, Grant Likely wrote:
> > > On Fri, Jun 3, 2011 at 11:18 AM, Mark Brown
> > > <broonie@...nsource.wolfsonmicro.com> wrote:
> > >> On Fri, Jun 03, 2011 at 11:04:52AM -0600, Grant Likely wrote:
> > >>
> > >>> I ended up not pushing this one to Linus.  Turns out it causes other
> > >>> breakage on other platforms that don't include include/linux/gpio.h.
> > >>> Since I don't have confidence that I'll be able to find all the
> > >>> offenders, I'm dropping it.  I recommend making any drivers that are
> > >>
> > >> So, this originally came about because I pushed back on adding random
> > >> dependencies like this for features which are pretty much optional in
> > >> drivers - their use of GPIOs is totally optional and the dependencies
> > >> are just too fragile, leading to noise with all the randconfigs.  It
> > >> seems better to get the architectures to keep up with enhancements to
> > >> gpiolib (or convert to it) than to have to worry about this in drivers.
> > > 
> > > Fair enough.  Randy, if you or someone else can check that all GPIOF_
> > > users have the required #include <linux/gpio.h>, then I'm okay with
> > > this patch.
> > 
> > OK, I'll look at that.
> 
> Of the 70 files that use GPIOF_ macros:
> 
> hdr missing in: ./arch/arm/mach-pxa/spitz_pm.c
> hdr missing in: ./arch/avr32/mach-at32ap/pio.c
> hdr missing in: ./arch/avr32/mach-at32ap/include/mach/portmux.h
> hdr missing in: ./arch/avr32/boards/hammerhead/setup.c
> hdr missing in: ./arch/avr32/boards/hammerhead/flash.c
> hdr missing in: ./arch/avr32/boards/mimc200/setup.c
> hdr missing in: ./arch/avr32/boards/atstk1000/setup.c
> hdr missing in: ./drivers/pcmcia/pxa2xx_vpac270.c
> 
> 
> > Do you have any examples of builds that failed with this patch?
> 
> and would you merge patch(es) that add this header file to those source
> files?  If not, I'll need to make 3 separate patches for them.

Yes I would.  I'm fine with it all being one patch.

g.

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