linux-kernel - Re: [PATCH] ARM: dts: nokia n900: remove useless io-channel-cells property

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Message-ID: <Z9vWca4WfIP7UD1g@duo.ucw.cz>
Date: Thu, 20 Mar 2025 09:48:49 +0100
From: Pavel Machek <pavel@....cz>
To: Sebastian Reichel <sre@...nel.org>
Cc: David Heidelberg <david@...t.cz>, Tony Lindgren <tony@...mide.com>,
	Rob Herring <robh@...nel.org>,
	Krzysztof Kozlowski <krzk+dt@...nel.org>,
	Conor Dooley <conor+dt@...nel.org>,
	Pali Rohár <pali@...nel.org>,
	linux-omap@...r.kernel.org, devicetree@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH] ARM: dts: nokia n900: remove useless io-channel-cells
 property

Hi!

> > This property is irrelevant for the ad5820 DAC,
> > the driver nor the hardware indicate use of channel cells.
> > 
> > Fixes: d510d12f26f4 ("ARM: dts: nokia n900: update dts with camera support")
> > Signed-off-by: David Heidelberg <david@...t.cz>
> > ---
> 
> I certainly don't think this is a fix and probably just stay, see:
> 
> https://lore.kernel.org/all/ih3ykzxrnpbwg4bvkmpoo2tashcxidir4r4zofhlvrs7udkp7o@6qtqh6wtmkwd/

The idea is that we can simplify binding document at that
point. Currently we are getting feedback that it is not needed on that
side :-(

Best regards,
								Pavel
> > @@ -816,8 +816,6 @@ ad5820: dac@c {
> >  		reg = <0x0c>;
> >  
> >  		VANA-supply = <&vaux4>;
> > -
> > -		#io-channel-cells = <0>;
> >  	};
> >  };


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