linux-kernel - Re: [PATCH v4 07/18] dt-bindings: soc: mobileye: add EyeQ5 OLB system controller

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Message-ID: <ca618c6e-ef29-4ee5-860f-68b48ebbeb9e@linaro.org>
Date: Thu, 1 Feb 2024 10:36:37 +0100
From: Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
To: Théo Lebrun <theo.lebrun@...tlin.com>,
 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

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.

> +
> +        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.



> +          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.

> 

Best regards,
Krzysztof