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=-6.8 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI, SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED 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 A2E8BC4742C for ; Tue, 3 Nov 2020 21:15:01 +0000 (UTC) Received: from merlin.infradead.org (merlin.infradead.org [205.233.59.134]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 362AC205ED for ; Tue, 3 Nov 2020 21:15:01 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="q7O6niAC" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 362AC205ED Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=the-dreams.de Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=merlin.20170209; h=Sender:Content-Type:Cc: List-Subscribe:List-Help:List-Post:List-Archive:List-Unsubscribe:List-Id: In-Reply-To:MIME-Version:References:Message-ID:Subject:To:From:Date:Reply-To: Content-Transfer-Encoding:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=65p+fyain08zO/8Uh1sekye3LoWFY26kyPDvyHnDPsQ=; b=q7O6niAChIfxnGG6WvBLcXj1K TSwn/U3nPnHcl9DOQomNtkvOy2C8M4NOCbVXr+MP5+Ff/PKpnWkke8xvavpVbL7V2cwKhvy8r7sxH 0mV+qfeZa5HogtQsve9qdU7tVgWcVgsMwub+D6xegyG0qeF7azjr2SxAXa2MIgYWl5EJ674byPzRN xe7giwVHgtzBaHymYrU/iQYObMtk15r3onePaNrOk0bssZ4NC0b+0GIJZjkGQl9+hDJEN1+G22uB8 UwdDtKgCHif34x1k4o2Z2pkBmCkSJE3cVYvl4TLwT/4H2u1jlGkJalkneH2Qd0v15NQvEFpbex0GQ UC5iXNFhw==; Received: from localhost ([::1] helo=merlin.infradead.org) by merlin.infradead.org with esmtp (Exim 4.92.3 #3 (Red Hat Linux)) id 1ka3cG-0003M3-1L; Tue, 03 Nov 2020 21:13:20 +0000 Received: from sauhun.de ([88.99.104.3] helo=pokefinder.org) by merlin.infradead.org with esmtp (Exim 4.92.3 #3 (Red Hat Linux)) id 1ka3cC-0003Kb-R3; Tue, 03 Nov 2020 21:13:18 +0000 Received: from localhost (p5486c89f.dip0.t-ipconnect.de [84.134.200.159]) by pokefinder.org (Postfix) with ESMTPSA id 4BCBD2C0561; Tue, 3 Nov 2020 22:13:13 +0100 (CET) Date: Tue, 3 Nov 2020 22:13:12 +0100 From: Wolfram Sang To: qii.wang@mediatek.com Subject: Re: [PATCH] i2c: mediatek: move dma reset before i2c reset Message-ID: <20201103211312.GG1583@kunai> Mail-Followup-To: Wolfram Sang , qii.wang@mediatek.com, matthias.bgg@gmail.com, linux-i2c@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, linux-mediatek@lists.infradead.org, srv_heupstream@mediatek.com, leilk.liu@mediatek.com References: <1604059081-28197-1-git-send-email-qii.wang@mediatek.com> MIME-Version: 1.0 In-Reply-To: <1604059081-28197-1-git-send-email-qii.wang@mediatek.com> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20201103_161317_028603_E43FB696 X-CRM114-Status: UNSURE ( 9.12 ) X-CRM114-Notice: Please train this message. X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: srv_heupstream@mediatek.com, leilk.liu@mediatek.com, linux-kernel@vger.kernel.org, linux-mediatek@lists.infradead.org, linux-i2c@vger.kernel.org, matthias.bgg@gmail.com, linux-arm-kernel@lists.infradead.org Content-Type: multipart/mixed; boundary="===============3400930236174115988==" Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org --===============3400930236174115988== Content-Type: multipart/signed; micalg=pgp-sha512; protocol="application/pgp-signature"; boundary="4ndw/alBWmZEhfcZ" Content-Disposition: inline --4ndw/alBWmZEhfcZ Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Fri, Oct 30, 2020 at 07:58:01PM +0800, qii.wang@mediatek.com wrote: > From: Qii Wang >=20 > The i2c driver default do dma reset after i2c reset, but sometimes > i2c reset will trigger dma tx2rx, then apdma write data to dram > which has been i2c_put_dma_safe_msg_buf(kfree). Move dma reset > before i2c reset in mtk_i2c_init_hw to fix it. >=20 > Signed-off-by: Qii Wang Applied to for-current, thanks! --4ndw/alBWmZEhfcZ Content-Type: application/pgp-signature; name="signature.asc" -----BEGIN PGP SIGNATURE----- iQIzBAABCgAdFiEEOZGx6rniZ1Gk92RdFA3kzBSgKbYFAl+hx+gACgkQFA3kzBSg KbYX6Q//ZGVdd7tkdj2nWfdk4zLv7XxhsnNc0yRj5kGzxUJKvKNkQhYfnhhxFMX7 HPEU0NIyBcT0NniiLqHhqAvAe91PNdUt2rlaD8zoWJkm22nBHH06IO1XBLglK6Ok 9mQWJ/h4E9SZVA7pPoOKQE8XDdD4Th767jmIDQ16xvo/YyAWu0yxwMep5ausuIHr RT2MmJisrXYHXXMDCVBkgBrD2UWR8XjNVrjap0aMfvdEb5N35BxsEB4BO3472XKI Ex00+kTjc+mFbwOtMTxtjVnOqW9fqqYu7indYah0mqDX5W8XUK/Ztuqi1qnQ7FBE 4X3DXxmZYGBgMBYfU4oQYQJDbCu/+X7hljgmvZ+uobhnEMIBIcRZ1qgNIGG3/my5 9Xdzvc6fKdfZefYc2cUFoJ7EpLgY+KJP/oKEhYQ43y0ORN0ZWdO2eMH2GUOJdhhd 9YH1lPPnZQcvCkt14U5FYyDCT2ZnbgTcZFo9TgLctlNqdm2o7xTYokbwmbooBx1m scA3peUJ+OyjQJrIX/b1+I1uYdh2v1Z/WRnIEIt2fdf+cBJGUEOC6VAP5v5FRO2M Is7BlkZnyuLXMyIz3wHYng/ivGqE2SPrO/JYk3rR2O8w+8dn/2HWOsZsyydyKa/l GPuN3WQru6TiDeD7lYTjRqRjl9jGzkSETQFO9jtdiTy3Wu+4uBk= =YC2K -----END PGP SIGNATURE----- --4ndw/alBWmZEhfcZ-- --===============3400930236174115988== Content-Type: text/plain; charset="us-ascii" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit Content-Disposition: inline _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel --===============3400930236174115988==--