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Wed, 14 Oct 2026 05:30:54 -0700 (PDT) X-Received: by 2002:a05:6122:464f:20b0:5c9:91ba:5d7a with SMTP id 71dfb90a1353d-5e91f232dbbmr3342717e0c.1.1791981053779; Wed, 14 Oct 2026 05:30:53 -0700 (PDT) Received: from [192.168.226.26] ([178.235.128.140]) by smtp.gmail.com with ESMTPSA id a640c23a62f3a-c31a9a9fffbsm691074966b.49.2026.10.14.05.30.50 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Wed, 14 Oct 2026 05:30:52 -0700 (PDT) Message-ID: Date: Wed, 14 Oct 2026 14:30:49 +0200 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH] i2c: qcom-geni: restore tSCL with 32MHz I2C fast-mode To: Birk Skyum , Thorsten Leemhuis , Mukesh Savaliya , Daniel J Blueman , Andi Shyti , Viken Dadhaniya Cc: Sasha Levin , Manikanta Mylavarapu , Bjorn Andersson , linux-i2c@vger.kernel.org, linux-arm-msm@vger.kernel.org, linux-kernel@vger.kernel.org, stable@vger.kernel.org, Linux kernel regressions list References: <20260929041444.9837-1-daniel@quora.org> <1ca16602-fb66-4706-8e86-3b35372324b9@oss.qualcomm.com> <20261009145800.rc-reply-0004@kernel.org> <4acb0eee-f7ae-4817-9848-d72cf486bc06@oss.qualcomm.com> <179197985641.52689.14222546983549320957@pm.me> Content-Language: en-US From: Konrad Dybcio In-Reply-To: <179197985641.52689.14222546983549320957@pm.me> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYxMDE0MDA0OSBTYWx0ZWRfX5ltZmnd4KjIp zbc3xTIR+5LnvmtH5O3oAP2yuRYDbGEsSq/8yDXx9BGAM5kQsGvDCObYRmq4lsTM/jqO0ajy+Ew gPUi96LR2C5L/ow6LeVuDElbgnfthGHI37TvkyexrOg+xEymUkuzghK8c8CtTMHwMYqDVxDcu7I 4ZhxTPEDSAKKZMSh/2152zVvNVIRZsstUgZJcFzxodYkFNGhoWrVIDqMFeTI8bmPll7h6fm5fYA H1KXFHhcugOvkDRLmPSTfJEu2gSKXxZYZVpIXhOYN8//GrNYhWG99IbM43Yn4gJBar2/ChwLqU3 aIVdvJqA9BJZmeMbtCZh6TYL8BCOgVBTLwiskKjvhtcvDwSkNFnSW97K3WIgFh2cENFYaeFRGTx IStDCv5O8Pa/sibxKmlGJMCSqezAM/i34gBeyXh8RAkLHydo+cJN7nmySJ7pkBRVTLBmQ2AD4b7 qKnnI7QUQdPuRmn+B/g== X-Proofpoint-GUID: m5b67or-gprsOUILmvpZxIMvmx_ltkee X-Authority-Analysis: v=2.4 cv=P6avFSAu c=1 sm=1 tr=0 ts=6acf75fe cx=c_pps a=+D9SDfe9YZWTjADjLiQY5g==:117 a=PRfkaYvzSr8QmIIGAkY2Sg==:17 a=IkcTkHD0fZMA:10 a=660iZSQnnn4A:10 a=s4-Qcg_JpJYA:10 a=VkNPw1HP01LnGYTKEx00:22 a=u7WPNUs3qKkmUXheDGA7:22 a=yx91gb_oNiZeI1HMLzn7:22 a=ISgNb0KN0Rerl7bivZwA:9 a=QEXdDO2ut3YA:10 a=vmgOmaN-Xu0dpDh8OwbV:22 X-Proofpoint-ORIG-GUID: m5b67or-gprsOUILmvpZxIMvmx_ltkee X-Proofpoint-Spam-Info: AW1haW4tMjYxMDE0MDA0OSBTYWx0ZWRfX+zuBWg7kwoKH ojIFYiu+80SzcojjUUaT2lzFZhxKHADrqdOPRJdONc6lzeukxYpZTunsuvi2k7wieDxTmF4Qk8T 5mQPsrrcOSKDG06JiPt1r3Y9GBpUxpk= X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1176,Hydra:6.1.134,FMLib:17.12.100.49 definitions=2026-10-13_01,2026-10-09_01,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 phishscore=0 bulkscore=0 lowpriorityscore=0 priorityscore=1501 adultscore=0 suspectscore=0 clxscore=1015 impostorscore=0 malwarescore=0 spamscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2610080000 definitions=main-2610140049 On 10/14/26 2:11 PM, Birk Skyum wrote: > On 10/14/26 07:08, Thorsten Leemhuis wrote: >> That's how it is sometimes, but then it's likely best to go back to the >> know old state by reverting the culprit -- or is that a bad idea for >> some reason? > > Hi Thorsten, > > One correction first. My report was from 7.2.9, and I had not booted > mainline when I sent it. I have now, on the Yoga Slim 7x with v7.3-rc7 > (a distribution config, no patches), and the keyboard and touchpad are > dead at the disk passphrase prompt. > > geni_i2c b80000.i2c: Bus proto err, noisy/unexpected start/stop > i2c_hid_of 1-003a: failed to fetch HID descriptor: -5 > > Same kernel with only i2c-qcom-geni.ko swapped, one boot each. > > v7.3-rc7 keyboard dead > v7.3-rc7, cb97bf3d4f91 reverted keyboard works > v7.3-rc7 with Daniel's patch keyboard works > > The touchpad binds whenever the keyboard does. The I2C serial engine > clocks read 32 MHz on plain rc7 and with Daniel's patch, and 19.2 MHz > with the revert. In all three boots the touchscreen and the three PS8830 > retimers on the other four buses work, and only b80000 fails. Since the discussion still hasn't settled, please go ahead with a last-minute revert for 7.3 so that we don't get an utterly broken release. Konrad