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 Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 743FFC32771 for ; Mon, 26 Sep 2022 18:18:07 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:In-Reply-To:MIME-Version:Message-ID: Subject:Cc:To:From:Date:Reply-To:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:References: List-Owner; bh=8r7Xorv9UuiccIOROSatcoYMjtTVoujToELcaRUqwb0=; b=BbshWqLZ0qDB1y 7dQygLOR13JzlxMUuxo1jjYtD8Y1+D9VWmSw8fS2RB3xcekj/OQO3BSVGjZp49I5dBDX6GEtfi0ds jUYqIRv3Xv9DaUr/eTsXxKfLEURggPcyLpfgJqt7gg2NMLJE7TW5ezU4cI3RL6yzm035/mKjZv5zk X/2DgnQWiwcP2AhLFxrXkWtU60q0rhojY2WRRJP+KUzLKdPrgeW0Fd6LDuxN/sTTvca2HI+NyyjBL XiTlLfVCzf82gf3/+vN0v46Xb0hWDr0/NhEoXT/V5tc17LfNcsebR1eqcLmCTscF6NIjE/OndYwd3 ogAFLj3z2Fk96eFLYggA==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1ocsgA-006FFI-Td; Mon, 26 Sep 2022 18:18:06 +0000 Received: from ams.source.kernel.org ([2604:1380:4601:e00::1]) by bombadil.infradead.org with esmtps (Exim 4.94.2 #2 (Red Hat Linux)) id 1ocsg9-006FEl-43 for linux-phy@lists.infradead.org; Mon, 26 Sep 2022 18:18:06 +0000 Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ams.source.kernel.org (Postfix) with ESMTPS id CC2C9B80CA1; Mon, 26 Sep 2022 18:18:03 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 80883C43146; Mon, 26 Sep 2022 18:18:01 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1664216281; bh=wAluiVNeo8nHql0makNUUTFAKus8zZtCrezjQxtwB+w=; h=Date:From:To:Cc:Subject:In-Reply-To:From; b=U6YipxbEdNH1/lQItnlIL8t5MD0TobZ4XR4L3RR7dY4wqxziWPatMlpGXQ1lYTXee 7YooBb+eDYGIl5mnXZbLCp4XlrEXL+woIDkpx5W5FpFE5d4fjVVmbGb+S6R9N83p8M z7KFG3HWzMzlZa36wwSnJBUhxJnnCahgWouh0op/ZlAWXjgLgzXuArgCeop8FIVFvi Elesc4bGObZUO4eHo7RXM949LhES1q/CYUC429sy3fOi77PPvMdRFBdyN9lYEy9uhb POLUb1fri+ac3o/LW4KukMgdn0NN9zIS7sjYuTSRyf00MHfZT0vc2kJyW9lKdps2sS 4ecaNrSHm1GMg== Date: Mon, 26 Sep 2022 13:18:00 -0500 From: Bjorn Helgaas To: Vidya Sagar Cc: lpieralisi@kernel.org, robh@kernel.org, kw@linux.com, bhelgaas@google.com, thierry.reding@gmail.com, jonathanh@nvidia.com, kishon@ti.com, vkoul@kernel.org, mani@kernel.org, Sergey.Semin@baikalelectronics.ru, ffclaire1224@gmail.com, linux-pci@vger.kernel.org, linux-tegra@vger.kernel.org, linux-kernel@vger.kernel.org, linux-phy@lists.infradead.org, kthota@nvidia.com, mmaddireddy@nvidia.com, sagar.tv@gmail.com Subject: Re: [PATCH V2 8/9] phy: tegra: p2u: Set ENABLE_L2_EXIT_RATE_CHANGE in calibration Message-ID: <20220926181800.GA1612559@bhelgaas> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: <20220926115038.24727-9-vidyas@nvidia.com> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20220926_111805_319592_443526A8 X-CRM114-Status: GOOD ( 10.87 ) X-BeenThere: linux-phy@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: Linux Phy Mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-phy" Errors-To: linux-phy-bounces+linux-phy=archiver.kernel.org@lists.infradead.org On Mon, Sep 26, 2022 at 05:20:37PM +0530, Vidya Sagar wrote: > Set ENABLE_L2_EXIT_RATE_CHANGE to request UPHY PLL rate change to Gen1 > during initialization. This helps in the below surprise down cases, > - Surprise down happens at Gen3/Gen4 link speed > - Surprise down happens and external REFCLK is cut off which causes > UPHY PLL rate to deviate to an invalid rate > > ENABLE_L2_EXIT_RATE_CHANGE needs to be set to bring the UPHY PLL rate > back to Gen1 during controller initialization for the link up. > > Signed-off-by: Vidya Sagar > Reported-by: kernel test robot I doubt the kernel test robot reported the issue being fixed by this patch. More likely it reported a syntax or similar issue in v1, and I think the "reported-by" tag is meaningless in cases like that. -- linux-phy mailing list linux-phy@lists.infradead.org https://lists.infradead.org/mailman/listinfo/linux-phy