linux-kernel - Re: [RFC PATCH v3 2/2] arm64: dts: renesas: ulcb-kf: add node for GNSS

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Date: Fri, 26 Jan 2024 16:05:32 +0100
From: Wolfram Sang <wsa+renesas@...g-engineering.com>
To: Geert Uytterhoeven <geert@...ux-m68k.org>
Cc: linux-renesas-soc@...r.kernel.org, Magnus Damm <magnus.damm@...il.com>,
	Rob Herring <robh+dt@...nel.org>,
	Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
	Conor Dooley <conor+dt@...nel.org>, devicetree@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: Re: [RFC PATCH v3 2/2] arm64: dts: renesas: ulcb-kf: add node for
 GNSS


> Can it be used over I2C too? Is there some strapping to select the
> interface used? I couldn't find that in the documentation.

It looks to me they both work at the same time. I was able to write and
read via I2C (thus not very meaningful data) while serial port was doing
the real work. I am not aware of a full GNSS implementation supporting
the I2C interface, so I considered it good at that point.


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