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[87.10.175.32]) by smtp.gmail.com with ESMTPSA id 5b1f17b1804b1-4a930a63eb3sm87590825e9.1.2026.10.28.23.55.41 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Wed, 28 Oct 2026 23:55:42 -0700 (PDT) Message-ID: <2a1eb85c-8a30-4594-bdad-8a1dec17b141@gmail.com> Date: Thu, 29 Oct 2026 07:55:41 +0100 X-Archived-By: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH 1/2] arm64: dts: imx8qm-ss-conn: add usbotg3 iommu information To: Frank Li Cc: Rob Herring , Krzysztof Kozlowski , Conor Dooley , Sascha Hauer , Pengutronix Kernel Team , Fabio Estevam , devicetree@vger.kernel.org, imx@lists.linux.dev, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, Xu Yang , Frank Li , "regressions@lists.linux.dev" , Francesco Dolcini References: <20260720-qm_smmu-v1-0-3689fbd8b516@nxp.com> <20260720-qm_smmu-v1-1-3689fbd8b516@nxp.com> Content-Language: en-US From: Emanuele Ghidoli In-Reply-To: Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.9.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20261028_235545_305586_55D0A085 X-CRM114-Status: GOOD ( 10.32 ) X-Spam-Score: -2.1 (--) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" X-Spam-Status: No, score=-4.3 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,FREEMAIL_FORGED_FROMDOMAIN, FREEMAIL_FROM,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI, SPF_HELO_NONE,SPF_PASS,USER_AGENT_SANE_1 autolearn=no autolearn_force=no version=4.0.1 X-Spam-Checker-Version: SpamAssassin 4.0.1 (2024-03-26) on aws-us-west-2-korg-listserv-alma10-1 On 10/28/26 22:05, Frank Li wrote: > Does it only impact superspeed? High speed work? No, it's not even enumerated, on the Dev board. > > Thank you report this problem. Suppose below patch should fix this problem. > > I have not time to test it today. > > > Frank Tested, it doesn't help. xhci-hcd.1.auto has no fwnode, so platform_dma_configure() never calls of_dma_configure() and the new code in of_iommu_configure() is never reached. Emanuele