[PATCH 00/13] Clean up mach/gpio.h headers

[Grant Likely]

On Tue, Aug 09, 2011 at 10:32:30PM +0100, Russell King - ARM Linux wrote:
> On Tue, Aug 09, 2011 at 03:00:55PM -0600, Grant Likely wrote:
> > On Tue, Aug 09, 2011 at 09:04:12AM +0100, Russell King - ARM Linux wrote:
> > > This is a preliminary posting of my gpio patch set.
> > > 
> > > This patch series moves the trivial gpiolib implementations out of
> > > mach/gpio.h and into asm/gpio.h.
> > > 
> > > As a side effect of that, most of this patch series is about fixing up
> > > direct includes of mach/gpio.h - this is something I've been on at
> > > people over the last year or more about ensuring that they use
> > > linux/gpio.h in preference.  While I've blindly converted all arch/arm
> > > to use linux/gpio.h (with the exception of mach/ includes which are
> > > converted to asm/gpio.h), drivers were only converted to asm/gpio.h.
> > > These should be reviewed and changed to linux/gpio.h.
> > > 
> > > As a result of this patch series, several mach/gpio.h end up being
> > > empty.
> > > 
> > > Many others just contain platform private GPIO APIs and definitions.
> > > 
> > > The last thing which mach/gpio.h is used for is to provide a definition
> > > for ARCH_GPIO_NR to asm-generic/gpio.h.  I've not attempted to solve
> > > that issue yet.
> > > 
> > > A small number of platforms optimize the gpio accessors for on-SoC
> > > GPIOs.  In the interests of consolidation, these will have to be killed
> > > but this patch set does not do that yet.
> > > 
> > > Lastly, several {mach,plat}/gpio.h needs to be looked at with a view to
> > > deleting the direct include of asm-generic/gpio.h.
> > 
> > Looks good to me, though I haven't looked closely.  I imagine this
> > should get merged via a branch in the arm-soc tree?
> 
> And this is where the existence of the arm-soc tree makes things more
> difficult for me.  I'd normally just keep it as a separate branch in
> my own tree.  What I do now, I've no idea.

A separate branch in your tree works too.  It could even get pulled
into the arm-soc tree so that it gets picked up by the daily
integration test before going on to linux-next.

g.