Re: [PATCHv2 3/3] arm: dts: add bandgap entry for OMAP4460 devices

[Jean-Christophe PLAGNIOL-VILLARD]

On 12:36 Wed 15 May     , Eduardo Valentin wrote:
> On 15-05-2013 11:23, Benoit Cousson wrote:
> > Hi Eduardo,
> > 
> > On 05/15/2013 04:58 PM, Eduardo Valentin wrote:
> >> Include bandgap devices for OMAP4460 devices.
> >>
> >> Cc: "Benoît Cousson" <b-cousson@xxxxxx>
> >> Cc: Tony Lindgren <tony@xxxxxxxxxxx>
> >> Cc: Russell King <linux@xxxxxxxxxxxxxxxx>
> >> Cc: linux-omap@xxxxxxxxxxxxxxx
> >> Cc: devicetree-discuss@xxxxxxxxxxxxxxxx
> >> Cc: linux-arm-kernel@xxxxxxxxxxxxxxxxxxx
> >> Cc: linux-kernel@xxxxxxxxxxxxxxx
> >> Signed-off-by: Eduardo Valentin <eduardo.valentin@xxxxxx>
> >> ---
> >>  arch/arm/boot/dts/omap4460.dtsi | 9 +++++++++
> >>  1 file changed, 9 insertions(+)
> >>
> >> diff --git a/arch/arm/boot/dts/omap4460.dtsi b/arch/arm/boot/dts/omap4460.dtsi
> >> index 2cf227c..e5bfbfe 100644
> >> --- a/arch/arm/boot/dts/omap4460.dtsi
> >> +++ b/arch/arm/boot/dts/omap4460.dtsi
> >> @@ -29,4 +29,13 @@
> >>  			     <0 55 0x4>;
> >>  		ti,hwmods = "debugss";
> >>  	};
> >> +
> >> +	bandgap {
> >> +		reg = <0x4a002260 0x4
> >> +			0x4a00232C 0x4
> >> +			0x4a002378 0x18>;
> >> +		compatible = "ti,omap4460-bandgap";
> >> +		interrupts = <0 126 4>; /* talert */
> >> +		ti,tshut-gpio = <86>;
> 
> 
> 
> > 
> > Why do you need a custom attribute for GPIO? Cannot you use the standard
> > one?
> 
> I believe it was by your suggestion :-), during the first attempts to
> send this driver. But could not find the thread link :-( sorry.
> 
> 
> I guess the reasoning to mark it as a ti specific is because it will be
> used as IRQ line to treat thermal shutdown (in SW).
so use interrup-parent
> 
> > 
> > Where is the gpio controller phandle?
> > 
> > Usually it looks like this:
> > 
> > 	gpios = <&gpio1 8 0>;
> > 
> > 
> > Regards,
> > Benoit
> > 
> > 
> > 
> 
> 



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