linux-kernel - Re: [PATCH 1/3] Documentation: dt: Intersil isl12057 is not a trivial device

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Date:	Wed, 20 Jul 2016 21:32:53 +0200
From:	Alexandre Belloni <alexandre.belloni@...e-electrons.com>
To:	Arnaud Ebalard <arno@...isbad.org>,
	Rob Herring <robh+dt@...nel.org>
Cc:	Alessandro Zummo <a.zummo@...ertech.it>,
	rtc-linux@...glegroups.com, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 1/3] Documentation: dt: Intersil isl12057 is not a
 trivial device

+robh

On 14/07/2016 at 22:10:48 +0200, Arnaud Ebalard wrote :
> Alexandre Belloni <alexandre.belloni@...e-electrons.com> writes:
> 
> > The ISL12057 has a documentation file, remove it from trivial-devices.txt
> >
> > Signed-off-by: Alexandre Belloni <alexandre.belloni@...e-electrons.com>
> > ---
> >  Documentation/devicetree/bindings/i2c/trivial-devices.txt | 1 -
> >  1 file changed, 1 deletion(-)
> >
> > diff --git a/Documentation/devicetree/bindings/i2c/trivial-devices.txt b/Documentation/devicetree/bindings/i2c/trivial-devices.txt
> > index 539874490492..a397d39ea741 100644
> > --- a/Documentation/devicetree/bindings/i2c/trivial-devices.txt
> > +++ b/Documentation/devicetree/bindings/i2c/trivial-devices.txt
> > @@ -50,7 +50,6 @@ fsl,sgtl5000		SGTL5000: Ultra Low-Power Audio Codec
> >  gmt,g751		G751: Digital Temperature Sensor and Thermal Watchdog with Two-Wire Interface
> >  infineon,slb9635tt	Infineon SLB9635 (Soft-) I2C TPM (old protocol, max 100khz)
> >  infineon,slb9645tt	Infineon SLB9645 I2C TPM (new protocol, max 400khz)
> > -isil,isl12057		Intersil ISL12057 I2C RTC Chip
> >  isil,isl29028		Intersil ISL29028 Ambient Light and Proximity Sensor
> >  maxim,ds1050		5 Bit Programmable, Pulse-Width Modulator
> >  maxim,max1237		Low-Power, 4-/12-Channel, 2-Wire Serial, 12-Bit ADCs
> 
> No strong advice on this but I thought it qualified as a trivial device
> because it did not *need* anything else except a compatible, an address
> and possibly an interrupt. The additional boolean property documented in
> Documentation/devicetree/bindings/rtc/isil,isl12057.txt is optional.
> 

Well, my thinking is that trivial devices are in trivial-devices.txt
because they are not documented anywhere else. This is mostly the case.


-- 
Alexandre Belloni, Free Electrons
Embedded Linux and Kernel engineering
http://free-electrons.com