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[209.17.68.221]) by smtp.gmail.com with ESMTPSA id d2e1a72fcca58-720bc1ef741sm4062238b3a.82.2024.11.02.05.04.04 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sat, 02 Nov 2024 05:04:05 -0700 (PDT) Date: Sat, 2 Nov 2024 21:04:03 +0900 From: Krzysztof =?utf-8?Q?Wilczy=C5=84ski?= To: Bjorn Helgaas Cc: Stefan Eichenberger , Richard Zhu , Lucas Stach , lpieralisi@kernel.org, manivannan.sadhasivam@linaro.org, robh@kernel.org, bhelgaas@google.com, shawnguo@kernel.org, s.hauer@pengutronix.de, kernel@pengutronix.de, festevam@gmail.com, francesco.dolcini@toradex.com, Frank.li@nxp.com, linux-pci@vger.kernel.org, linux-arm-kernel@lists.infradead.org, imx@lists.linux.dev, linux-kernel@vger.kernel.org, Stefan Eichenberger Subject: Re: [PATCH v4] PCI: imx6: Add suspend/resume support for i.MX6QDL Message-ID: <20241102120403.GF2260768@rocinante> References: <20241030103250.83640-1-eichest@gmail.com> <20241101193412.GA1317741@bhelgaas> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20241101193412.GA1317741@bhelgaas> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20241102_050406_781036_AFCCFEAF X-CRM114-Status: GOOD ( 13.19 ) 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 Hello, [...] > > Without this patch, suspend/resume will fail on i.MX6QDL devices if a > > PCIe device is connected. Upon resuming, the kernel will hang and > > display an error. Here's an example of the error encountered with the > > ath10k driver: > > ath10k_pci 0000:01:00.0: Unable to change power state from D3hot to D0, device inaccessible > > Unhandled fault: imprecise external abort (0x1406) at 0x0106f944 > [...] > > Richard and Lucas, does this look OK to you? Since you're listed as > maintainers of pci-imx6.c, I'd like to have your ack before merging > this. If things look fine here, then I would like to pick it up. Krzysztof