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Date: Thu, 01 Feb 2024 11:45:36 +0100
From: Théo Lebrun <theo.lebrun@...tlin.com>
To: "Krzysztof Kozlowski" <krzysztof.kozlowski@...aro.org>, "Gregory
 CLEMENT" <gregory.clement@...tlin.com>, "Michael Turquette"
 <mturquette@...libre.com>, "Stephen Boyd" <sboyd@...nel.org>, "Rob Herring"
 <robh+dt@...nel.org>, "Krzysztof Kozlowski"
 <krzysztof.kozlowski+dt@...aro.org>, "Conor Dooley" <conor+dt@...nel.org>,
 "Thomas Bogendoerfer" <tsbogend@...ha.franken.de>, "Linus Walleij"
 <linus.walleij@...aro.org>, Rafał Miłecki
 <rafal@...ecki.pl>, "Philipp Zabel" <p.zabel@...gutronix.de>
Cc: "Vladimir Kondratiev" <vladimir.kondratiev@...ileye.com>,
 <linux-mips@...r.kernel.org>, <linux-clk@...r.kernel.org>,
 <devicetree@...r.kernel.org>, <linux-kernel@...r.kernel.org>, "Thomas
 Petazzoni" <thomas.petazzoni@...tlin.com>, "Tawfik Bayouk"
 <tawfik.bayouk@...ileye.com>, <linux-gpio@...r.kernel.org>
Subject: Re: [PATCH v4 07/18] dt-bindings: soc: mobileye: add EyeQ5 OLB
 system controller

Hello,

On Thu Feb 1, 2024 at 10:36 AM CET, Krzysztof Kozlowski wrote:
> On 31/01/2024 17:26, Théo Lebrun wrote:
> > Add documentation to describe the "Other Logic Block" syscon.
> > 
> > Signed-off-by: Théo Lebrun <theo.lebrun@...tlin.com>
> > ---
> >  .../bindings/soc/mobileye/mobileye,eyeq5-olb.yaml  | 89 ++++++++++++++++++++++
> >  MAINTAINERS                                        |  1 +
> >  2 files changed, 90 insertions(+)
> > 
>
> ...
>
> > +required:
> > +  - compatible
> > +  - reg
> > +  - '#address-cells'
> > +  - '#size-cells'
> > +  - ranges
> > +
> > +additionalProperties: false
> > +
> > +examples:
> > +  - |
> > +    soc {
> > +      #address-cells = <2>;
> > +      #size-cells = <2>;
> > +
> > +      system-controller@...000 {
> > +        compatible = "mobileye,eyeq5-olb", "syscon", "simple-mfd";
> > +        reg = <0x0 0xe00000 0x0 0x400>;
> > +        #address-cells = <1>;
> > +        #size-cells = <1>;
> > +        ranges = <0x0 0x0 0xe00000 0x400>;
>
> If there is going to be any resend:
> 1. ranges follows reg
> 2. Use lower-case hex
>
> See DTS coding style.

I'm re-reading Documentation/devicetree/bindings/dts-coding-style.rst
right now. Thanks.

>
> > +
> > +        clocks: clock-controller@2c {
> > +          compatible = "mobileye,eyeq5-clk";
> > +          reg = <0x02C 0x50>, <0x11C 0x04>;
> > +          reg-names = "plls", "ospi";
> > +          #clock-cells = <1>;
> > +          clocks = <&xtal>;
> > +          clock-names = "ref";
> > +        };
> > +
> > +        reset: reset-controller@0 {
>
> 0 is before 2c, keep nodes properly ordered.

Indeed.

> > +          compatible = "mobileye,eyeq5-reset";
> > +          reg = <0x000 0x0C>, <0x200 0x34>, <0x120 0x04>;
> > +          reg-names = "d0", "d1", "d2";
> > +          #reset-cells = <2>;
> > +        };
> > +
> > +        pinctrl: pinctrl@b0 {
> > +          compatible = "mobileye,eyeq5-pinctrl";
> > +          reg = <0x0B0 0x30>;
>
> This looks incomplete. Your binding mentions children, so provide at
> least one child.

Will do. Didn't think about adding a child example to the dt-bindings
example.

Thanks,

--
Théo Lebrun, Bootlin
Embedded Linux and Kernel engineering
https://bootlin.com

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