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Fri, 26 Jun 2026 14:18:44 -0700 (PDT) Received: from google.com ([2a00:79e0:2ebe:8:a474:bf4a:4966:8d97]) by smtp.gmail.com with ESMTPSA id 5a478bee46e88-30c7c52c664sm23589430eec.8.2026.06.26.14.18.42 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 26 Jun 2026 14:18:43 -0700 (PDT) Date: Fri, 26 Jun 2026 14:18:40 -0700 From: Dmitry Torokhov To: David Heidelberg Cc: linux-input@vger.kernel.org, Linux Next Mailing List Subject: Re: [regression] synaptics-rmi4: Failed to read the Control Register Descriptor: EIO Message-ID: References: Precedence: bulk X-Mailing-List: linux-input@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: Hi David, On Fri, Jun 26, 2026 at 11:09:54PM +0200, David Heidelberg wrote: > With next-20260626 without any additional patches, the synaptics fails on > OnePlus 6T with: > > ``` > [ 16.620292] rmi4_i2c 12-0020: registering I2C-connected sensor > [ 16.857617] rmi4_f01 rmi4-00.fn01: found RMI device, manufacturer: > Synaptics, product: S3706B, fw id: 2852315 > [ 16.867324] rmi4_f12 rmi4-00.fn12: Failed to read the Control Register > Descriptor: -5 > [ 16.867338] rmi4_f12 rmi4-00.fn12: probe with driver rmi4_f12 failed with > error -5 > ``` Yes, at least a98518e72439 "Input: rmi4 - fix register descriptor address calculation" is wrong and needs to be reverted. Thanks. -- Dmitry