linux-kernel - Re: [PATCH] ARM: dts: AM33XX: fix gpio node numbering to match hardware

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Date:	Mon, 10 Sep 2012 12:52:10 -0400
From:	Matt Porter <mporter@...com>
To:	Benoit Cousson <b-cousson@...com>
Cc:	Linux OMAP List <linux-omap@...r.kernel.org>,
	Linux ARM Kernel List <linux-arm-kernel@...ts.infradead.org>,
	Devicetree Discuss <devicetree-discuss@...ts.ozlabs.org>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	Vaibhav Hiremath <hvaibhav@...com>,
	"tony@...mide.com" <tony@...mide.com>
Subject: Re: [PATCH] ARM: dts: AM33XX: fix gpio node numbering to match
 hardware

On Mon, Sep 10, 2012 at 06:34:20PM +0200, Benoit Cousson wrote:
> + Tony
> 
> Hi Matt,
> 
> 30 minutes too late for my pull request :-(
> 
> There are a couple of am33xx patches under discussion, so I'll take them
> and send a for_3.7/dts-part2 pull request if this is not too late for Tony.

Yeah, believe me, I did a faceplant when I saw your pull request come by
at the same time I discovered this issue. ;) In particular, AnilKumar's
user leds patch would need to be adjusted for this change. I can
resubmit with the user leds dts changes adjusted as well if that
discussion comes to a conclusion and his patches accepted.
 
> On 09/10/2012 06:20 PM, Matt Porter wrote:
> > On AM33xx, the datasheet and TRM refer to four GPIO instances that
> > are 0-based, GPIO0-3.
> 
> Or maybe you should just update the spec to use a 1-based GPIO number
> like OMAP :-)

I am powerless here. :)

-Matt

> > Signed-off-by: Matt Porter <mporter@...com>
> > ---
> >  arch/arm/boot/dts/am33xx.dtsi |    8 ++++----
> >  1 file changed, 4 insertions(+), 4 deletions(-)
> > 
> > diff --git a/arch/arm/boot/dts/am33xx.dtsi b/arch/arm/boot/dts/am33xx.dtsi
> > index bb31bff..1369bfc 100644
> > --- a/arch/arm/boot/dts/am33xx.dtsi
> > +++ b/arch/arm/boot/dts/am33xx.dtsi
> > @@ -62,7 +62,7 @@
> >  			reg = <0x48200000 0x1000>;
> >  		};
> >  
> > -		gpio1: gpio@...07000 {
> > +		gpio0: gpio@...07000 {
> >  			compatible = "ti,omap4-gpio";
> >  			ti,hwmods = "gpio1";
> >  			gpio-controller;
> > @@ -74,7 +74,7 @@
> >  			interrupts = <96>;
> >  		};
> >  
> > -		gpio2: gpio@...4c000 {
> > +		gpio1: gpio@...4c000 {
> >  			compatible = "ti,omap4-gpio";
> >  			ti,hwmods = "gpio2";
> >  			gpio-controller;
> > @@ -86,7 +86,7 @@
> >  			interrupts = <98>;
> >  		};
> >  
> > -		gpio3: gpio@...ac000 {
> > +		gpio2: gpio@...ac000 {
> >  			compatible = "ti,omap4-gpio";
> >  			ti,hwmods = "gpio3";
> >  			gpio-controller;
> > @@ -98,7 +98,7 @@
> >  			interrupts = <32>;
> >  		};
> >  
> > -		gpio4: gpio@...ae000 {
> > +		gpio3: gpio@...ae000 {
> >  			compatible = "ti,omap4-gpio";
> >  			ti,hwmods = "gpio4";
> >  			gpio-controller;
> > 
> 
> --
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