linux-kernel - Re: [PATCH] ARM: tegra: Fix <mach/gpio.h> to have necessary #includes

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Date:	Thu, 11 Aug 2011 21:02:10 +0100
From:	Russell King - ARM Linux <linux@....linux.org.uk>
To:	Stephen Warren <swarren@...dia.com>
Cc:	Arnd Bergmann <arnd@...db.de>, Colin Cross <ccross@...roid.com>,
	Erik Gilling <konkers@...roid.com>,
	Olof Johansson <olof@...om.net>,
	"linux-tegra@...r.kernel.org" <linux-tegra@...r.kernel.org>,
	"linux-arm-kernel@...ts.infradead.org" 
	<linux-arm-kernel@...ts.infradead.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] ARM: tegra: Fix <mach/gpio.h> to have necessary
	#includes

On Thu, Aug 11, 2011 at 12:49:47PM -0700, Stephen Warren wrote:
> Russell King wrote at Thursday, August 11, 2011 1:36 PM:
> > On Thu, Aug 11, 2011 at 12:05:52PM -0600, Stephen Warren wrote:
> > > Without this, EINVAL isn't defined, and type bool isn't declared.
> > > This leads to compilation failures.
> > 
> > An alternative approach would be to convert tegra to be able to use
> > the gpiolib __gpio_to_irq() for the on-SoC stuff, and eliminate
> > irq_to_gpio().
> > 
> > Would it be possible to do that instead?
> 
> That should work too.
> 
> I posted a couple patches last Friday to remove irq_to_gpio:
> 
> https://lkml.org/lkml/2011/8/5/343
> https://lkml.org/lkml/2011/8/5/342
> 
> Later in the thread, you said you would merge them into your branch to
> avoid merge conflicts with the other GPIO work you were doing.

I suggested it would be a good idea.  Now that I've published those
changes, any chance of having some updated patches in the patch system
please?

> For gpio_to_irq, yes, I believe we get rid of it pretty easily; we'd
> just need to implement gpio-tegra.c's gpio_chip.to_irq function. Should
> I cook up a patch based on top of linux-next plus the two patches above
> to do that instead?

Yes please, again eventually to the patch system once Grant has acked it
to avoid the otherwise certain conflicts.

Thanks for doing this.
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