linux-kernel - Re: [PATCH v5 1/7] dt-bindings: connector: Add mikrobus-connector

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Message-ID: <CAL_Jsq+mxxStZLwUbk9An2pA+Uce+QFjDnnNTMb24m1iMg7B+A@mail.gmail.com>
Date: Tue, 2 Jul 2024 09:17:48 -0600
From: Rob Herring <robh@...nel.org>
To: Ayush Singh <ayush@...gleboard.org>
Cc: Mark Brown <broonie@...nel.org>, Vaishnav M A <vaishnav@...gleboard.org>, 
	Krzysztof Kozlowski <krzk+dt@...nel.org>, Conor Dooley <conor+dt@...nel.org>, 
	Derek Kiernan <derek.kiernan@....com>, Dragan Cvetic <dragan.cvetic@....com>, 
	Arnd Bergmann <arnd@...db.de>, Greg Kroah-Hartman <gregkh@...uxfoundation.org>, Nishanth Menon <nm@...com>, 
	Vignesh Raghavendra <vigneshr@...com>, Tero Kristo <kristo@...nel.org>, Michael Walle <mwalle@...nel.org>, 
	Andrew Lunn <andrew@...n.ch>, jkridner@...gleboard.org, robertcnelson@...gleboard.org, 
	linux-spi@...r.kernel.org, linux-kernel@...r.kernel.org, 
	devicetree@...r.kernel.org, linux-arm-kernel@...ts.infradead.org
Subject: Re: [PATCH v5 1/7] dt-bindings: connector: Add mikrobus-connector

On Tue, Jul 2, 2024 at 9:14 AM Ayush Singh <ayush@...gleboard.org> wrote:
>
> On 6/28/24 21:58, Rob Herring wrote:
>
> > On Thu, Jun 27, 2024 at 09:56:11PM +0530, Ayush Singh wrote:
> >> Add DT bindings for mikroBUS interface. MikroBUS is an open standard
> >> developed by MikroElektronika for connecting add-on boards to
> >> microcontrollers or microprocessors.

[...]

> >> +  mikrobus-gpios:
> >> +    minItems: 1
> >> +    maxItems: 12
> >> +
> >> +  mikrobus-gpio-names:
> > The GPIO binding does not work this way as the name is in the property.
> > Either drop if you want to keep the array or you have to do something
> > like this:
> >
> > pwm-gpios
> > int-gpios
> > rx-gpios
> >
> > Really, the intention was for connectors to use gpio-map property to
> > renumber GPIOs relative to the connector.
>
> Can you point me to what you mean by gpio-map property?

It is defined in the DT specification.

Rob