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[2620:137:e000::3:5]) by mx.google.com with ESMTPS id u17-20020a17090341d100b001b8af930e3dsi5747584ple.487.2023.09.16.13.25.52 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sat, 16 Sep 2023 13:25:52 -0700 (PDT) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::3:5 as permitted sender) client-ip=2620:137:e000::3:5; Authentication-Results: mx.google.com; dkim=pass header.i=@sang-engineering.com header.s=k1 header.b=dcMlp5EX; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::3:5 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: from out1.vger.email (depot.vger.email [IPv6:2620:137:e000::3:0]) by groat.vger.email (Postfix) with ESMTP id 07C2E8246320; Sat, 16 Sep 2023 04:42:32 -0700 (PDT) X-Virus-Status: Clean X-Virus-Scanned: clamav-milter 0.103.10 at groat.vger.email Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S238123AbjIPLl6 (ORCPT + 99 others); Sat, 16 Sep 2023 07:41:58 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:42912 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S235007AbjIPLl0 (ORCPT ); Sat, 16 Sep 2023 07:41:26 -0400 Received: from mail.zeus03.de (www.zeus03.de [194.117.254.33]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 85CF0CCB for ; Sat, 16 Sep 2023 04:41:20 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d= sang-engineering.com; h=date:from:to:cc:subject:message-id :references:mime-version:content-type:in-reply-to; s=k1; bh=rV3M QAfEUvaD3vTox7p3VRNL07FnlYNAnCdJs33T7MY=; b=dcMlp5EX5pyzz5BopNyp Ki9jl6lG2mp83bX7e2aPUT5syV6blf52C8T2LNkswqdcveAT3lAJZhvXItdccVrl UZDlJJbmW5z2zJ3Y4RD+hhLAqwBrTlLKe/HHiLFWHaUnsoFD1M3vgd68Zij/gXPn 6IBlExn4fniM6X0DkWnwKxzXXRfQdJnw1V22DWfMlUOUHGNLnO7vsqD7brDNMNQZ WwJnoRHRa2LNcmr14Y7z9Yc4jF77naS1Iz88uCcSk9LHouBBih/4QNrAIiE3VGYu QSVR/GixCd/NqdBlo2jeNuvBFo6sv9yPZcq9ge6+e/0Z1tEryGSwCKNO4xEemaw0 8Q== Received: (qmail 1629540 invoked from network); 16 Sep 2023 13:41:16 +0200 Received: by mail.zeus03.de with ESMTPSA (TLS_AES_256_GCM_SHA384 encrypted, authenticated); 16 Sep 2023 13:41:16 +0200 X-UD-Smtp-Session: l3s3148p1@JXgLY3gFXyYuciVa Date: Sat, 16 Sep 2023 13:41:15 +0200 From: Wolfram Sang To: Yoshihiro Shimoda Cc: "linux-i2c@vger.kernel.org" , "linux-kernel@vger.kernel.org" , "linux-renesas-soc@vger.kernel.org" Subject: Re: [PATCH 0/2] i2c: rcar: add support for Gen4 devices Message-ID: Mail-Followup-To: Wolfram Sang , Yoshihiro Shimoda , "linux-i2c@vger.kernel.org" , "linux-kernel@vger.kernel.org" , "linux-renesas-soc@vger.kernel.org" References: <20230913203242.31505-1-wsa+renesas@sang-engineering.com> MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha512; protocol="application/pgp-signature"; boundary="w7ODO1pQBBvDsUPV" Content-Disposition: inline In-Reply-To: X-Spam-Status: No, score=-0.8 required=5.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI, SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED autolearn=unavailable autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on groat.vger.email Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org X-Greylist: Sender passed SPF test, not delayed by milter-greylist-4.6.4 (groat.vger.email [0.0.0.0]); Sat, 16 Sep 2023 04:42:32 -0700 (PDT) --w7ODO1pQBBvDsUPV Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Hi Shimoda-san, I had a look now with Kieran's Spider and could reproduce your findings. It is not a problem, though, because the system behaves the same with plain v6.6-rc1. The only difference with my branch is that DEBUG is enabled for the I2C driver, so we see all the messages regarding EPROBE_DEFER with DMA. If you add DEBUG to plain v6.6-rc1, then you see the same messages. But still, the busses get probed and they also get DMA channels after some time when the DMA driver is finally loaded. So, this really has nothing to do with the patches themselves, only with the additions for debugging. Phew! Thank you for reporting and testing, still! Wolfram --w7ODO1pQBBvDsUPV Content-Type: application/pgp-signature; name="signature.asc" -----BEGIN PGP SIGNATURE----- iQIzBAABCgAdFiEEOZGx6rniZ1Gk92RdFA3kzBSgKbYFAmUFlFQACgkQFA3kzBSg KbaryQ//TNv5sPXPBuqcTYF0NYlB1kBySuo/YIsEoakO5k+6yYg8H5zG7eFsuj5f 0NoWzVfzV1eDYnHRl1H0QPhhxHYghl68LRPy/0OFvG0+mPvuqrMjczA2fD8S/uAX AkIcyTstRrLDb9iYgy4ZB+fR1Byz0UnDvnzk8cDVy97moyu2tU5vn23qLi6b8l+M 0G4u3L+13q2SgbwwCZCkWlaqrTCa9vbztUjnQD3k9HS3RZYQltwgLktusrcAXqRL 409KDk5CxCvIBDbEGmxPxfx8C5NUlNBabDWDz8JXhiNnAAsjhPfACWOXo6xYdEgD 7i+E1XYszGKU7VZw2DUY2bncUqMpIkmQMdcVByZpB/Sffxl1+HvHfBaELxXeb/rN XqTEsr/ptK3aCBZApQUUFUGTu2flUGmLEpnyrlar8oQ6+KzVhJ6AY03kEJg+ab7Y wqggs270XUFTv9t8zVInqAm2ouYiHXDLDp+/uvZVrsLBCO887aKmvT4kfl3n14hd RlqiZwwmHJELZGjSuHCwMhdYf3QA62Ur2KlDgMw40tkhL+UPxWKGpLJrGGkZK22U Sl2nEkpB1WykXK5zSo+W4a9PVqYQOwMaAk8rktl4SJbtBV8xivxoGonI7eKSr1/R sg+r6tIYTD/G9D0WQM2JyYK4A/ip5rQ4fx5UpV4w9kOGBD+lObs= =KHK6 -----END PGP SIGNATURE----- --w7ODO1pQBBvDsUPV--