linux-kernel - Re: [PATCH v1] dt-bindings: gpio: pca95xx: add Toradex Embedded Controller

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Message-ID: <20250331070340.GA13824@francesco-nb>
Date: Mon, 31 Mar 2025 09:03:40 +0200
From: Francesco Dolcini <francesco@...cini.it>
To: Linus Walleij <linus.walleij@...aro.org>,
	Bartosz Golaszewski <brgl@...ev.pl>, Rob Herring <robh@...nel.org>,
	Krzysztof Kozlowski <krzk+dt@...nel.org>,
	Conor Dooley <conor+dt@...nel.org>
Cc: Emanuele Ghidoli <emanuele.ghidoli@...adex.com>,
	linux-gpio@...r.kernel.org, devicetree@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	Francesco Dolcini <francesco.dolcini@...adex.com>
Subject: Re: [PATCH v1] dt-bindings: gpio: pca95xx: add Toradex Embedded
 Controller

Hello,

On Fri, Mar 28, 2025 at 01:29:17PM +0100, Francesco Dolcini wrote:
> From: Emanuele Ghidoli <emanuele.ghidoli@...adex.com>
> 
> The Toradex Embedded Controller IO16 is a 16-bit I2C I/O expander
> implemented using a small MCU.
> Its register interface and behavior are compatible with the PCAL6416.
> 
> Signed-off-by: Emanuele Ghidoli <emanuele.ghidoli@...adex.com>
> Signed-off-by: Francesco Dolcini <francesco.dolcini@...adex.com>

Please ignore this patch, I'll send soon a v2.

The issue with this patch is that the compatible is too long, we are
going to re-use "embedded-controller" prefix for other devices and this
creates clashes with the i2c compatible match fallback function
(i2c_of_match_device_sysfs).

Francesco