linux-kernel - Re: [PATCH v4 3/3] arm64: dts: imx93: Add phyBOARD-Segin-i.MX93 support

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Date: Tue, 23 Jan 2024 08:44:55 +0100
From: Mathieu Othacehe <othacehe@....org>
To: Wadim Egorov <w.egorov@...tec.de>
Cc: Rob Herring <robh+dt@...nel.org>,  Krzysztof Kozlowski
 <krzysztof.kozlowski+dt@...aro.org>,  Conor Dooley <conor+dt@...nel.org>,
  Shawn Guo <shawnguo@...nel.org>,  Sascha Hauer <s.hauer@...gutronix.de>,
  Pengutronix Kernel Team <kernel@...gutronix.de>,  Fabio Estevam
 <festevam@...il.com>,  NXP Linux Team <linux-imx@....com>,  Li Yang
 <leoyang.li@....com>,  Primoz Fiser <primoz.fiser@...ik.com>,  Stefan
 Wahren <wahrenst@....net>,  Christoph Stoidner <c.stoidner@...tec.de>,
  <devicetree@...r.kernel.org>,  <linux-kernel@...r.kernel.org>,
  <linux-arm-kernel@...ts.infradead.org>
Subject: Re: [PATCH v4 3/3] arm64: dts: imx93: Add phyBOARD-Segin-i.MX93
 support


Hey Wadim,

> You are doing more than you describing in your changes log.
> Here you are forcing a gpio-only functionality for the X16 header. But the
> pins we route down to the X16 expansion connector can be also used
> differently.
> Typically we provide device tree overlays for different use cases on this
> expansion connectors.

Adding those GPIOs on X16 was a suggestion from Stefan back in v3. I
must say that it is quite convenient as a user to be able to interact
with gpiolib on some GPIOs on the eval board.

Would it be a possibility to change the muxing of those two pins in the
overlays if the need arises?

> Maybe this comment was lost, but I asked to move the dts-v1 tag into the
> carrier board device tree.

Missed that, sorry.

Thanks,

Mathieu