linux-kernel - Re: [PATCH v1 1/3] dt-bindings: usb: dwc3: Add a property to reserve endpoints

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Message-ID: <Z5Op98D94JzAZurB@smile.fi.intel.com>
Date: Fri, 24 Jan 2025 16:55:51 +0200
From: Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
To: Rob Herring <robh@...nel.org>
Cc: Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	Thinh Nguyen <Thinh.Nguyen@...opsys.com>,
	Felipe Balbi <balbi@...nel.org>, linux-usb@...r.kernel.org,
	devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
	Krzysztof Kozlowski <krzk+dt@...nel.org>,
	Conor Dooley <conor+dt@...nel.org>, Ferry Toth <fntoth@...il.com>
Subject: Re: [PATCH v1 1/3] dt-bindings: usb: dwc3: Add a property to reserve
 endpoints

On Thu, Jan 23, 2025 at 04:09:46PM -0600, Rob Herring wrote:
> On Thu, Jan 16, 2025 at 05:40:46PM +0200, Andy Shevchenko wrote:
> > Some of the endpoints may be reserved by hardware for different purposes,
> > e.g., tracing control and output. This is the case, for instance, on
> > Intel Merrifield and Moorefield platforms that reserve a few and USB driver
> > may not use them for the regular transfers. Add the respective bindings.

...

> > +  snps,reserved-endpoints:
> > +    description:
> > +      Reserve endpoints for other needs, e.g, for tracing control and output.
> > +      When set, the driver will avoid using them for the regular USB transfers.
> > +    $ref: /schemas/types.yaml#/definitions/uint8-array
> > +    maxItems: 30
> 
> Please make minItems explicit.

    minItems: 0
    maxItems: 30

Is this what you want to see here?

> > +    items:
> > +      minimum: 2
> > +      maximum: 31

-- 
With Best Regards,
Andy Shevchenko