linux-kernel - Re: [PATCH 0/8] gpio: omap: cleanup: get rid of system GPIO <-> GPIO offset converseations

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Date:	Sun, 22 Mar 2015 19:32:53 +0200
From:	Aaro Koskinen <aaro.koskinen@....fi>
To:	"Grygorii.Strashko@...aro.org" <grygorii.strashko@...aro.org>
Cc:	Tony Lindgren <tony@...mide.com>,
	Javier Martinez Canillas <javier@...hile0.org>,
	Linus Walleij <linus.walleij@...aro.org>,
	Alexandre Courbot <gnurou@...il.com>, ssantosh@...nel.org,
	Kevin Hilman <khilman@...prootsystems.com>,
	linux-omap@...r.kernel.org, linux-gpio@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH 0/8] gpio: omap: cleanup: get rid of system GPIO <-> GPIO
 offset converseations

Hi,

On Fri, Mar 20, 2015 at 05:11:23PM +0200, Grygorii.Strashko@...aro.org wrote:
> On 03/20/2015 01:00 AM, Tony Lindgren wrote:
> > * grygorii.strashko@...aro.org <grygorii.strashko@...aro.org> [150319 10:26]:
> >> From: Grygorii Strashko <grygorii.strashko@...aro.org>
> >> Now in TI OMAP GPIO driver there are a lot of places where
> >> System GPIO number calculated and then converted to GPIO offset.
> >> What is worse is that in many place such conversation performed twice
> >> or even three times. But actually, we don't need to do that at all, because
> >> - gpiolib always passes GPIO offset to GPIO controller
> >> - OMAP GPIO driver converted to use IRQ domain, so
> >>    struct irq_data->hwirq contains GPIO offset
> >>
> >> Hence, it is safe to convert all GPIO OMAP functions to use GPIO
> >> offset instead of system GPIO numbers. Also, this allows to remove
> >> unneeded conversations routines
> >>   #define GPIO_INDEX(bank, gpio)
> >>   #define GPIO_BIT(bank, gpio)
> >>   int omap_irq_to_gpio()
> > 
> > Right on! This is excellent news. I've tested this set on top of -rc4
> > plus the patch mentioned below, and I'm not seeing regressions on
> > the platforms I tested with. Wake up to smsc911x ping with off-idle
> > still works on omap3.
> > 
> > I only briefly tested on omap1 (osk5912), so I'like to wait for
> > Aaro's ack before this gets merged.
> > 
> > I found one build error, other than that, for the whole series
> > please feel free to add:
> > 
> > Tested-by: Tony Lindgren <tony@...mide.com>
> 
> Thanks Tony. 
> Yep. I'll wait for news from Aaro then will re-send if ok.

Works fine on 770 and E3.

Tested-by: Aaro Koskinen <aaro.koskinen@....fi>

A.
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