linux-kernel - Re: [PATCH 2/2] arm64: dts: renesas: r9a09g047e57-smarc: Add overlay for P3T1085UK-ARD

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <aR1f6PMbG0N_9oAo@shikoro>
Date: Wed, 19 Nov 2025 07:12:56 +0100
From: Wolfram Sang <wsa+renesas@...g-engineering.com>
To: Tommaso Merciai <tommaso.merciai.xr@...renesas.com>
Cc: tomm.merciai@...il.com, linux-renesas-soc@...r.kernel.org,
	biju.das.jz@...renesas.com,
	Geert Uytterhoeven <geert+renesas@...der.be>,
	Magnus Damm <magnus.damm@...il.com>, Rob Herring <robh@...nel.org>,
	Krzysztof Kozlowski <krzk+dt@...nel.org>,
	Conor Dooley <conor+dt@...nel.org>, devicetree@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH 2/2] arm64: dts: renesas: r9a09g047e57-smarc: Add overlay
 for P3T1085UK-ARD


> Your suggestion is to keep only Patch 1/2 dropping alias line right?

Yes.

We could think about enabling I3C unconditionally by adding this to
rzg3e-smarc-som.dtsi:

+       i2c-scl-hz = <400000>;
+       i3c-scl-hz = <12500000>;
+       status = "okay";

So, I3C will just work when you connect devices to it. The I3C frequency
might be depending a bit on the I3C target board and how it is wired.
Maybe use 10Mhz as a safe value and add a comment?


Download attachment "signature.asc" of type "application/pgp-signature" (834 bytes)