From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-3.6 required=3.0 tests=BAYES_00,DKIM_INVALID, DKIM_SIGNED,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE, SPF_PASS autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id E2F82C433ED for ; Wed, 5 May 2021 07:33:30 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id B94FA611EE for ; Wed, 5 May 2021 07:33:30 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231544AbhEEHeZ (ORCPT ); Wed, 5 May 2021 03:34:25 -0400 Received: from www.zeus03.de ([194.117.254.33]:56664 "EHLO mail.zeus03.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231279AbhEEHeZ (ORCPT ); Wed, 5 May 2021 03:34:25 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=simple; d=sang-engineering.com; h= date:from:to:cc:subject:message-id:references:mime-version :content-type:in-reply-to; s=k1; bh=n+2Vkq69Ma0baKgAusTP+dM7AsG4 s/PvcQYkwjGihNI=; b=yL6xSahmqNq86F+/Td2b6qqDiBPHcc3zdYK4E1HCzSye xpZNp7SS6WmZZhdQrgKIPIRf0SO0DTwqHq6L93SoMqhDMvk69KVNGz84zUV1iPje DuKtes8ny+nupsPvwMjabJrZDdCJkdJi0N/j3RADOyRpCKR3DvUNLQDnWow7jWc= Received: (qmail 1683845 invoked from network); 5 May 2021 09:33:28 +0200 Received: by mail.zeus03.de with ESMTPSA (TLS_AES_256_GCM_SHA384 encrypted, authenticated); 5 May 2021 09:33:28 +0200 X-UD-Smtp-Session: l3s3148p1@4WfuNZDB+KIgAwDPXwRNAK21Lx9NnZcs Date: Wed, 5 May 2021 09:33:27 +0200 From: Wolfram Sang To: Geert Uytterhoeven Cc: Rob Herring , Chris Brandt , linux-i2c@vger.kernel.org, linux-renesas-soc@vger.kernel.org Subject: Re: [PATCH/RFC 4/6] dt-bindings: i2c: renesas,iic: Convert to json-schema Message-ID: <20210505073327.GE1009@ninjato> References: MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha512; protocol="application/pgp-signature"; boundary="OZkY3AIuv2LYvjdk" Content-Disposition: inline In-Reply-To: Precedence: bulk List-ID: X-Mailing-List: linux-i2c@vger.kernel.org --OZkY3AIuv2LYvjdk Content-Type: text/plain; charset=us-ascii Content-Disposition: inline > Possible alternative interpretations of the note are: > - Only IIC3 has the automatic transmission registers. But the > automatic transmission feature is not useful as the SoCs lack DVFS > support. I immediately thought "yeah, this is it", but had to do some resarch where my assumption comes from. I found it in older H2 datasheets (v0.9). Here in 56.1: "Automatic transmission for PMIC control: The IIC3 module of the R-Car H2 and M2 supports automatic data transmission under PMIC control (DVFS)." Or table 56.8: "Registers of IIC Command for Automatic Transmission Mode (IIC3 only) [R-CarH2, M2, and V2H]" This all is a strong indication for IIC3 only. Which SoCs that have is still confusing. Table 56.8 mentions V2H but 56.1 doesn't. Then again, I could imagine that V2H has it but simply DVFS is not advertised for V2H. And in the later documents, DVFS advertisement was removed for H2 and M2 as well. (PS: sorry for replying to the "wrong" thread, I accidently deleted the "correct" one) --OZkY3AIuv2LYvjdk Content-Type: application/pgp-signature; name="signature.asc" -----BEGIN PGP SIGNATURE----- iQIzBAABCgAdFiEEOZGx6rniZ1Gk92RdFA3kzBSgKbYFAmCSSkcACgkQFA3kzBSg KbbANA/+M9SYVRW57FmBoC9xEcS/fuRxt4P8tSuDsj64qIcNSST9GzEj4HhEfvop X4n/p7SSrxPXHlmtKjdtnTlS8415uWFngrkADW7p9BggZhswcth058YEeSSvsjmM HmjQhWGLSOsJyAL3SO1MMRK6QpYfZz/lUjMX1XHV/199SFUpJid8hhlf6BMEI0TA 5h0EC5Dx1wa34A+Jk1HJOkc52Zw2U1dr8CE48kDv1alPy7J88KFtzrYgPDIU3mfa mbiCGbhZqbK9veZpV0LZijTajphNOpZWkx6srtgpqGearOfYdMBQV/JJKMVAxaaa d8O8zTI1uCKZmyPzr6zU2AbX0XMOQhZOXlfDDUSz79ggeVVT5yKkUeQWl0IvxjJl rIpO+baAFZyUD8+oNV4IYPTrIQiRoLFxQojtfZeKyo5sAUlNW8akHeeHOW27o6Bk e6hk9nSRUH9I8fFlaPo1Lqcyv8jqV8mrWdkLeP1q3Nak7/W+fD9pS+G7ZmRkTKWk hbtUvDzf4F7GvdkzBlMWvREF/d9tqAA4PrWzPBYNfjdba/FWxy4V7TzV+ap3/Kkl lTnCb/iQtze1dk3du9pubzBTniDWW5hquHryjKpERXX6ZWRs610YYeIvU4joryO/ kjAZcRDY78rld4ZHNnmlGEUukiqQF9ypijm1gXVg6YcPKIb4ncc= =CfDC -----END PGP SIGNATURE----- --OZkY3AIuv2LYvjdk--