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Message-ID: <20240807054944.g6xgiamjn76xlv2g@uda0497581>
Date: Wed, 7 Aug 2024 11:19:44 +0530
From: Manorit Chawdhry <m-chawdhry@...com>
To: Neha Malcom Francis <n-francis@...com>
CC: Nishanth Menon <nm@...com>, Andrew Davis <afd@...com>,
        Vignesh Raghavendra
	<vigneshr@...com>,
        Tero Kristo <kristo@...nel.org>, Rob Herring
	<robh@...nel.org>,
        Krzysztof Kozlowski <krzk+dt@...nel.org>,
        Conor Dooley
	<conor+dt@...nel.org>,
        <linux-arm-kernel@...ts.infradead.org>, <devicetree@...r.kernel.org>,
        <linux-kernel@...r.kernel.org>, Aniket Limaye
	<a-limaye@...com>,
        Udit Kumar <u-kumar1@...com>, Beleswar Padhi
	<b-padhi@...com>,
        Siddharth Vadapalli <s-vadapalli@...com>
Subject: Re: [PATCH v3 1/5] arm64: dts: ti: k3-j721s2*: Add bootph-*
 properties

Hi Neha,

On 11:12-20240807, Manorit Chawdhry wrote:
> Hi Neha,
> 
> On 11:03-20240807, Neha Malcom Francis wrote:
> > Hi Manorit
> > 
> > On 07/08/24 10:56, Manorit Chawdhry wrote:
> > > Hi Nishanth,
> > > 
> > > On 10:07-20240806, Nishanth Menon wrote:
> > > > On 09:43-20240806, Andrew Davis wrote:
> > > > > On 7/30/24 4:53 AM, Manorit Chawdhry wrote:
> > > > > > Adds bootph-* properties to the leaf nodes to enable U-boot to
> > > > > > utilise them.
> > > > > 
> > > > > U-Boot? Let's try to pretend like this is a generic property and
> > > > > just say "bootloader" :)
> > > > > > @@ -445,6 +446,7 @@ flash@0 {
> > > > > >    		cdns,tchsh-ns = <60>;
> > > > > >    		cdns,tslch-ns = <60>;
> > > > > >    		cdns,read-delay = <4>;
> > > > > > +		bootph-all;
> > > > 
> > > > Here and elsewhere, follow:
> > > > 	https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/Documentation/devicetree/bindings/dts-coding-style.rst#n117
> > > 
> > > Could you tell me what are you seeing wrong? The dts-coding-style that
> > > you shared doesn't tell a specific location for bootph-* properties so
> > > using the generic reasoning.
> > > 
> > > "1. Most important properties start the node: compatible then bus addressing to
> > >     match unit address."
> > > 
> > > This is the least important property considering Linux and hence the
> > > reasoning was that it should come in the last. Also, j722s and am62p
> > > follow the same convention so it was taken from there only.
> > > 
> > 
> > Not sure if this is what he meant, but bootph-* comes under standard/common
> > properties as per my understanding of the coding style. And status needs to
> > be at the very end if it's there (in this case it's not but just
> > mentioning).
> 
> I see status property being at the top of many nodes so I don't think
> it's even followed right now, with that reasoning, I don't think I can
> use that point for ordering the dt nodes. If it's under common nodes
> then also I think it's in the appropriate location considering that even
> in those properties it is the least important and should be coming in
> the last. If you see any problem with this node then please let me know
> in the ordering.

Maybe I missed, cdns would be vendor property I assume, let me get
Nishanth's ack as to that is what he wants and this is indeed under
common/standard nodes then would move it to the appropriate location. 

Though again, j722s and am62p don't seem to be following this
convention so not really sure what he means actually tbh.

Regards,
Manorit

> 
> Regards,
> Manorit
> 
> > 
> > > Regards,
> > > Manorit
> > > 
> > > > 
> > > > 
> > > > > >    	};
> > > > > >    };
> > > > > > 
> > > > 
> > > > -- 
> > > > Regards,
> > > > Nishanth Menon
> > > > Key (0xDDB5849D1736249D) / Fingerprint: F8A2 8693 54EB 8232 17A3  1A34 DDB5 849D 1736 249D
> > 
> > -- 
> > Thanking You
> > Neha Malcom Francis

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