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[23.128.96.18]) by mx.google.com with ESMTP id ot21si1784754ejb.351.2020.04.21.08.35.27; Tue, 21 Apr 2020 08:35:51 -0700 (PDT) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) client-ip=23.128.96.18; Authentication-Results: mx.google.com; dkim=pass header.i=@nvidia.com header.s=n1 header.b=ItEbQCyb; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=nvidia.com Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1725994AbgDUPec (ORCPT + 99 others); Tue, 21 Apr 2020 11:34:32 -0400 Received: from hqnvemgate26.nvidia.com ([216.228.121.65]:6461 "EHLO hqnvemgate26.nvidia.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725613AbgDUPec (ORCPT ); Tue, 21 Apr 2020 11:34:32 -0400 Received: from hqpgpgate102.nvidia.com (Not Verified[216.228.121.13]) by hqnvemgate26.nvidia.com (using TLS: TLSv1.2, DES-CBC3-SHA) id ; Tue, 21 Apr 2020 08:34:19 -0700 Received: from hqmail.nvidia.com ([172.20.161.6]) by hqpgpgate102.nvidia.com (PGP Universal service); Tue, 21 Apr 2020 08:34:31 -0700 X-PGP-Universal: processed; by hqpgpgate102.nvidia.com on Tue, 21 Apr 2020 08:34:31 -0700 Received: from DRHQMAIL107.nvidia.com (10.27.9.16) by HQMAIL101.nvidia.com (172.20.187.10) with Microsoft SMTP Server (TLS) id 15.0.1473.3; Tue, 21 Apr 2020 15:34:31 +0000 Received: from [10.26.73.24] (10.124.1.5) by DRHQMAIL107.nvidia.com (10.27.9.16) with Microsoft SMTP Server (TLS) id 15.0.1473.3; Tue, 21 Apr 2020 15:34:29 +0000 Subject: Re: [PATCH v2 1/2] i2c: tegra: Better handle case where CPU0 is busy for a long time To: Dmitry Osipenko , Thierry Reding , Laxman Dewangan , "Wolfram Sang" , Manikanta Maddireddy , Vidya Sagar CC: , , References: <20200324191217.1829-1-digetx@gmail.com> <20200324191217.1829-2-digetx@gmail.com> <1e259e22-c300-663a-e537-18d854e0f478@nvidia.com> <8cd085e1-f9fd-6ec0-9f7a-d5463f176a63@nvidia.com> <93b738f2-ccf2-68ed-3ca5-30945bd40521@gmail.com> From: Jon Hunter Message-ID: <61c9f5a7-3a48-8200-1cfe-d5d0524511f7@nvidia.com> Date: Tue, 21 Apr 2020 16:34:27 +0100 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.7.0 MIME-Version: 1.0 In-Reply-To: <93b738f2-ccf2-68ed-3ca5-30945bd40521@gmail.com> X-Originating-IP: [10.124.1.5] X-ClientProxiedBy: HQMAIL105.nvidia.com (172.20.187.12) To DRHQMAIL107.nvidia.com (10.27.9.16) Content-Type: text/plain; charset="utf-8" Content-Language: en-US Content-Transfer-Encoding: quoted-printable DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=nvidia.com; s=n1; t=1587483259; bh=dfH21pJMGp2TfX6zyXnZ+Ik+c16DfCdxRpvDYe/WEyU=; h=X-PGP-Universal:Subject:To:CC:References:From:Message-ID:Date: User-Agent:MIME-Version:In-Reply-To:X-Originating-IP: X-ClientProxiedBy:Content-Type:Content-Language: Content-Transfer-Encoding; b=ItEbQCybEuWHLbIyZf8BYqAPDXF32uVlv2cta+J6vli0ktZqDrjdwCNNXYv/uF4qU 5BmmNgBl6izQFyGbBOUL61SdocrNvO6rfuHCvhxU8/DAVFBmWtQKcunrG8fsqnCKi6 apa33hYEBldvy0ZtEpot6JM7k/Qqegxc2VFSWiUCDL3drJNBfnqYn4yd+YScWa5Jgk L/1b7G51DiKlZomIMwYWSDetpQM0X54wWIsyYEYv3qEg9bl3zr38tfpOh/Cgi+qyFp poaK2TRvTKoKcnc3KgOcthB1g/d/RSaXMgkT29z0isVG0Y5Hl8O1ucBupdDC68NiTo G6RBqYts4CNRw== Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 21/04/2020 16:18, Dmitry Osipenko wrote: > 21.04.2020 17:40, Jon Hunter =D0=BF=D0=B8=D1=88=D0=B5=D1=82: >> >> On 21/04/2020 14:25, Dmitry Osipenko wrote: >>> 21.04.2020 12:49, Jon Hunter =D0=BF=D0=B8=D1=88=D0=B5=D1=82: >>> ... >>>> I can try the above, but I agree it would be best to avoid messing wit= h >>>> the suspend levels if possible. >>> >>> Will be awesome if you could try it and report back the result. >>> >> >> I gave it a try but suspend still fails. >=20 > Is this regulator error gone with my changes? >=20 > [ 60.450346] WARNING: CPU: 0 PID: 653 at > /home/jonathanh/workdir/tegra/mlt-linux_next/kernel/drivers/regulator/cor= e.c:2603 > _regulator_disable+0xb8/0x1b4 > [ 60.463959] unbalanced disables for vdd_pexa,vdd_pexb The above is still there with your changes. Jon --=20 nvpublic