netdev - RE: [PATCH v5 1/4] dt-bindings: net: Add FSD EQoS device tree bindings

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Message-ID: <002d01db722e$b6fc4610$24f4d230$@samsung.com>
Date: Wed, 29 Jan 2025 14:48:05 +0530
From: "Swathi K S" <swathi.ks@...sung.com>
To: "'Krzysztof Kozlowski'" <krzk@...nel.org>
Cc: <netdev@...r.kernel.org>, <devicetree@...r.kernel.org>,
	<linux-kernel@...r.kernel.org>, <linux-stm32@...md-mailman.stormreply.com>,
	<linux-arm-kernel@...ts.infradead.org>, <linux-samsung-soc@...r.kernel.org>,
	<alexandre.torgue@...s.st.com>, <peppe.cavallaro@...com>,
	<joabreu@...opsys.com>, <rcsekar@...sung.com>, <ssiddha@...la.com>,
	<jayati.sahu@...sung.com>, <pankaj.dubey@...sung.com>,
	<ravi.patel@...sung.com>, <gost.dev@...sung.com>, <robh@...nel.org>,
	<davem@...emloft.net>, <edumazet@...gle.com>, <kuba@...nel.org>,
	<pabeni@...hat.com>, <conor+dt@...nel.org>, <richardcochran@...il.com>,
	<mcoquelin.stm32@...il.com>, <andrew@...n.ch>, <alim.akhtar@...sung.com>,
	<linux-fsd@...la.com>
Subject: RE: [PATCH v5 1/4] dt-bindings: net: Add FSD EQoS device tree
 bindings



> -----Original Message-----
> From: Krzysztof Kozlowski <krzk@...nel.org>
> Sent: 28 January 2025 19:45
> To: Swathi K S <swathi.ks@...sung.com>; robh@...nel.org;
> davem@...emloft.net; edumazet@...gle.com; kuba@...nel.org;
> pabeni@...hat.com; conor+dt@...nel.org; richardcochran@...il.com;
> mcoquelin.stm32@...il.com; andrew@...n.ch; alim.akhtar@...sung.com;
> linux-fsd@...la.com
> Cc: netdev@...r.kernel.org; devicetree@...r.kernel.org; linux-
> kernel@...r.kernel.org; linux-stm32@...md-mailman.stormreply.com;
> linux-arm-kernel@...ts.infradead.org; linux-samsung-soc@...r.kernel.org;
> alexandre.torgue@...s.st.com; peppe.cavallaro@...com;
> joabreu@...opsys.com; rcsekar@...sung.com; ssiddha@...la.com;
> jayati.sahu@...sung.com; pankaj.dubey@...sung.com;
> ravi.patel@...sung.com; gost.dev@...sung.com
> Subject: Re: [PATCH v5 1/4] dt-bindings: net: Add FSD EQoS device tree
> bindings
> 
> On 28/01/2025 11:25, Swathi K S wrote:
> > +  Tesla ethernet devices based on dwmmac support Gigabit ethernet.
> > +
> > +allOf:
> > +  - $ref: snps,dwmac.yaml#
> > +
> > +properties:
> > +  compatible:
> > +    const: tesla,fsd-ethqos.yaml
> > +
> > +  reg:
> > +    maxItems: 1
> > +
> > +  interrupts:
> > +    maxItems: 1
> > +
> > +  clocks:
> > +    minItems: 5
> > +    maxItems: 10
> 
> Why is this flexible?
> 
> Anyway, you need to list and describe the items instead of min/maxItems.

Hi Krzysztof,
There are 2 Ethernet instances where Eth0 has 5 clocks and Eth1 has 10 clocks.
Would it be sufficient to list the clock names?

> 
> > +
> > +  clock-names:
> > +    minItems: 5
> > +    maxItems: 10
> 
> Same here.

Ack

> 
> > +
> > +  iommus:
> > +    maxItems: 1
> > +
> > +  phy-mode:
> > +    enum:
> > +     - rgmii-id
> > +
> > +required:
> > +  - compatible
> > +  - reg
> > +  - interrupts
> > +  - clocks
> > +  - clock-names
> > +  - iommus
> > +  - phy-mode
> > +
> > +unevaluatedProperties: false
> > +
> > +examples:
> > +  - |
> > +    #include <dt-bindings/clock/fsd-clk.h>
> > +    #include <dt-bindings/interrupt-controller/arm-gic.h>
> > +
> > +    ethernet_1: ethernet@...00000 {
> 
> Please implement last comment from Rob.
> 
> > +              compatible = "tesla,fsd-ethqos";
> > +              reg = <0x0 0x14300000 0x0 0x10000>;
> 
> And since there is going to be new version, switch to the preferred
> indentation (4-space). Other option is 2 spaces, but not 8.

Ack, will update it this way in v6.

- Swathi

> 
> > +...
> 
> 
> Best regards,
> Krzysztof