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 55015F45A0D for ; Fri, 10 Apr 2026 22:53:53 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:List-Subscribe:List-Help :List-Post:List-Archive:List-Unsubscribe:List-Id:In-Reply-To:Content-Type: MIME-Version:Message-ID:Subject:Cc: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:References: List-Owner; bh=03KDR3YJYERdvAhn4kP4FR9bT80SF8m4Ixv4eGYeKDU=; b=WFT9fbCE0fMhfs ekZlKQaTe5BSHzNqVUwFzlENlqqJtfPU+NIWIKSJkwEmnAQWtQfUbezx84HJ7eplNmOE0Ig+YlPjJ QY61jlU9tWMfL7zsDeOxB+UBqMj3WzhjFNcZZhHLGceIS90gbXJO50kMI0TfxPksQTaRYeXfI5kWB vYLu1yrsmBOekPNAaLPAzlgHOnPDza9lJiDsjqeNWFxBevJydlSEeELNZHBA8a7K2sgavhIOKJnm4 nRQlr430g71iTrErdYn+R94LOz1i4opeBeUATLDbhTNbJ0cNZ058yXO3yognN+/Cd4O79s5Xq62mu MCq+7sPeSLOzYauUTnzg==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.98.2 #2 (Red Hat Linux)) id 1wBKjS-0000000Ctwl-2Fun; Fri, 10 Apr 2026 22:53:46 +0000 Received: from sea.source.kernel.org ([2600:3c0a:e001:78e:0:1991:8:25]) by bombadil.infradead.org with esmtps (Exim 4.98.2 #2 (Red Hat Linux)) id 1wBKjQ-0000000CtwP-2wJ4 for linux-arm-kernel@lists.infradead.org; Fri, 10 Apr 2026 22:53:45 +0000 Received: from smtp.kernel.org (transwarp.subspace.kernel.org [100.75.92.58]) by sea.source.kernel.org (Postfix) with ESMTP id 5B97343FB9; Fri, 10 Apr 2026 22:53:43 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 1193CC19421; Fri, 10 Apr 2026 22:53:42 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1775861623; bh=9VBjNQAzbB9vwgFa9GsT6+N9W2jFYIIY2jEQ/4Yjw7E=; h=Date:From:To:Cc:Subject:In-Reply-To:From; b=JlDXbIlbK5X40pJZvtF0DRYkDEl98GwzuiRxiheKDsqyaB3Tmemx7eemj1/VWTZtd O50M1m/s7YWxzlT4PVxQB+OXsHFxvsOFWVEKuEASn1qzDyIiNdBmSQpyoptDTtItn/ fziGS/McdLELE72g+lmuXFc3SPDW7ulyP5gVM+jju34DQ9L6IbPiYYrDzWfCRAX6ds zvU4ZpefRlXXQEeuD4G+xDVGr+Bcw/M80+N+ORk40JJsMkX4n6WgRuKcRj6ocNQbDy 6kKvOkowpl4YDki/Z22Hd5lVxjf8tyIpR2JBKaWfMYI3oDFVhgCDHb2TNMnhPJIEJa PbAosXJR4dLpA== Date: Fri, 10 Apr 2026 17:53:41 -0500 From: Bjorn Helgaas To: Hongxing Zhu Cc: "mani@kernel.org" , Frank Li , "jingoohan1@gmail.com" , "l.stach@pengutronix.de" , "lpieralisi@kernel.org" , "kwilczynski@kernel.org" , "robh@kernel.org" , "bhelgaas@google.com" , "s.hauer@pengutronix.de" , "kernel@pengutronix.de" , "festevam@gmail.com" , "linux-pci@vger.kernel.org" , "linux-arm-kernel@lists.infradead.org" , "imx@lists.linux.dev" , "linux-kernel@vger.kernel.org" , "stable@vger.kernel.org" Subject: Re: [PATCH v1] PCI: imx6: Add force_suspend flag to override L1SS suspend skip Message-ID: <20260410225341.GA598942@bhelgaas> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20260410_155344_781238_08F020B9 X-CRM114-Status: UNSURE ( 9.35 ) X-CRM114-Notice: Please train this message. X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org On Wed, Apr 08, 2026 at 02:38:35AM +0000, Hongxing Zhu wrote: > ... > One additional note regarding NVMe: ASPM (Active State Power Management) is > disabled locally on i.MX platforms for NVMe devices. This decision was made > after encountering a system hang issue similar to the one reported by Hans a > few months ago in his patch listed below. > https://lore.kernel.org/linux-nvme/20250502032051.920990-1-hans.zhang@cixtech.com/ Where is ASPM disabled for i.MX? I don't see anything in pci-imx6.c. It doesn't sound architecturally clean to me to disable ASPM based on whether an NVMe device is involved.