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Tue, 20 Oct 2026 05:46:37 -0700 (PDT) Received: from [192.168.226.26] ([178.235.128.140]) by smtp.gmail.com with ESMTPSA id a640c23a62f3a-c40913c4806sm475795366b.44.2026.10.20.05.46.34 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Tue, 20 Oct 2026 05:46:36 -0700 (PDT) Message-ID: <72b98e95-29b2-4c8e-8afb-986abcd1367e@oss.qualcomm.com> Date: Tue, 20 Oct 2026 14:46:33 +0200 X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Post: List-Help: List-Subscribe: List-Unsubscribe: List-Owner: Precedence: list MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH] clk: qcom: gcc-ipq5018: mark 'gpll0_main' clock as critical To: Gabor Juhos , Bjorn Andersson , Stephen Boyd , Brian Masney , Jerome Brunet , Konrad Dybcio , Abel Vesa , Varadarajan Narayanan , Gokul Sriram Palanisamy , Sricharan Ramabadhran Cc: Stanislaw Pal , Mieczyslaw Nalewaj , Jie Luo , Georg Seema , linux-arm-msm@vger.kernel.org, linux-clk@vger.kernel.org, linux-kernel@vger.kernel.org, stable@vger.kernel.org References: <20260918-ipq5018-mark-gpll0_main-critical-v1-1-fbe8f27a0106@gmail.com> <66d48e1f-7bab-42f3-84db-ce794f2a2a89@oss.qualcomm.com> <4ae83db6-768d-447e-b177-3ef5206267f9@gmail.com> Content-Language: en-US From: Konrad Dybcio In-Reply-To: <4ae83db6-768d-447e-b177-3ef5206267f9@gmail.com> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit X-Proofpoint-GUID: md4C7Z3JXlbvWkM5TkFiQFSeXXlI7byS X-Proofpoint-ORIG-GUID: md4C7Z3JXlbvWkM5TkFiQFSeXXlI7byS X-Authority-Analysis: v=2.4 cv=L7qI0OT8 c=1 sm=1 tr=0 ts=6ad762ae 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=rJkE3RaqiGZ5pbrm-msn:22 a=VwQbUJbxAAAA:8 a=20KFwNOVAAAA:8 a=k2Pudi_VgRJteF2nVXcA:9 a=3ZKOabzyN94A:10 a=QEXdDO2ut3YA:10 a=ZXulRonScM0A:10 a=vmgOmaN-Xu0dpDh8OwbV:22 X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYxMDIwMDA1MCBTYWx0ZWRfXyLaQF/mAdxnb u1KJGqdP2BZMr/KTqOFNgWPzxAp17wog/51dy9HFbPeOAlyba6uUHeNOiVwo88if96dkV4Nw62V IBZ0EO4foEnNq8qIXYNfLLS0PWHfj1MmpFP53J2QKbFrryIKLsjSNEBp3GCZjPbqonsPNjqIGaN o5TztiKiQ/a9wwbM29wuzgupSfzpcTR9d72B1bxQ6bjO9bYyx274XoEckWX/kyaQ0ZO9AvOxUCg 1GiKXoeEtxSr7jftL/CJc79uPHSePwFNSM4pn+PiTVL4hvOXFL6aP673gfL/Pt0kHxD4WOHEfD7 rWa8T7lf5BwbzYtCiQ9m8YlmaeCR1+CgHzug84U1pLKvaN3HuprU0ENp201+oBI8hJjC7bXf2vl HZa/4NhrWpOqTtl3jT5eHIkuvnqwR0SaJNExctktZ7jOHgskshw/XrvEUSOYROYmlgPrc56ZtzE 4SsFO9hR+zT3O+Zblyg== X-Proofpoint-Spam-Info: AW1haW4tMjYxMDIwMDA1MCBTYWx0ZWRfX1JUmBScCFl0t noIcWH9EkjFwcfrbaVjIDrLbsCYIeBVkELHXAmokd6Y9FufOKTJ5ea4Lq0LPpnRsln1Cy+YB0pm jDQ0MmyAqUaIlsg0EHqOKVPiHZakZJQ= 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=2026-10-20_01,2026-10-19_02,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 impostorscore=0 lowpriorityscore=0 adultscore=0 phishscore=0 priorityscore=1501 bulkscore=0 malwarescore=0 suspectscore=0 spamscore=0 clxscore=1015 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2610190000 definitions=main-2610200050 On 10/3/26 9:50 PM, Gabor Juhos wrote: > 2026. 10. 01. 18:15 keltezéssel, Konrad Dybcio írta: >> On 9/24/26 1:33 PM, Gabor Juhos wrote: >>> Hi Konrad, >>> >>> 2026. 09. 23. 15:32 keltezéssel, Konrad Dybcio írta: >>>> On 9/18/26 11:27 AM, Gabor Juhos wrote: >>>>> On IPQ5018, the APCS core clock feeds the CPUs. It can use >>>>> different clocks as its parent, but during system boot it >>>>> utilizes GPLL0. [...] > Maybe this helps to understand the problem. Yes, it's much clearer now. I think the right solution here could be to make .sync_state hold off any non-transient disables until sync_state has completed. But we're still working on getting any sort of sync_state in the clk framework: https://lore.kernel.org/linux-arm-msm/20260626-clk-sync-state-v1-0-4156d8196dc8@redhat.com/ Konrad