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[78.88.45.245]) by smtp.gmail.com with ESMTPSA id a640c23a62f3a-bd4f4bd1116sm210293066b.10.2026.05.15.04.03.06 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Fri, 15 May 2026 04:03:07 -0700 (PDT) Message-ID: Date: Fri, 15 May 2026 13:03:05 +0200 Precedence: bulk X-Mailing-List: devicetree@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH] arm64: dts: qcom: sdm850-lenovo-yoga-c630: lower PSCI cluster idle To: Dmitry Baryshkov , Bjorn Andersson , Konrad Dybcio , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Abel Vesa Cc: Krzysztof Kozlowski , linux-arm-msm@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org References: <20260428-c630-fix-idle-v1-1-29d0da326eb3@oss.qualcomm.com> <57696ca6-42ce-46d6-9b30-cd5ad4378e25@oss.qualcomm.com> Content-Language: en-US From: Konrad Dybcio In-Reply-To: Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit X-Proofpoint-GUID: 96uafW-66uF3Oi3aSQqqfhLJ_UvZnWto X-Authority-Analysis: v=2.4 cv=GulyPE1C c=1 sm=1 tr=0 ts=6a06fd6d cx=c_pps a=wuOIiItHwq1biOnFUQQHKA==:117 a=FpWmc02/iXfjRdCD7H54yg==:17 a=IkcTkHD0fZMA:10 a=NGcC8JguVDcA:10 a=s4-Qcg_JpJYA:10 a=VkNPw1HP01LnGYTKEx00:22 a=u7WPNUs3qKkmUXheDGA7:22 a=rJkE3RaqiGZ5pbrm-msn:22 a=EUspDBNiAAAA:8 a=grNNkQCBMd6X2WQm2_UA:9 a=3ZKOabzyN94A:10 a=QEXdDO2ut3YA:10 a=XD7yVLdPMpWraOa8Un9W:22 X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwNTE1MDExMSBTYWx0ZWRfX8Jo7MUzmnoqv h2Gv/rk3QK9grrpmGyBEv/JT6sVojCRbpCiyv+VJZFgKPOLtyIusiJQES2v7iFo82zqYPPOBWqq ZZjlh+0c2wTkfCksVsj3WFx6zBoUbKMNwN5FNdnljkXKDArCTKtyIe/6MexHliDfSsFyolToUPT LdriK1guRm4gbrg+PbcJP+0yeT/9V0VePkp3hh2qQcg4+vsu1T70DC9XETMKi+ipgTnqgbz7TXe e2KmyhVXdmqEO0SPV319m54KSPQwxMXsgqqBWcAw544IbLgg6d3HBx7H9FWj93BOKrzpEs3VzPF Tt22lOHKUFZgrjEgHuxDgbw3L/y8OtVQk0ay79Hzvo3WO4z1ieFWKiCGM579HlMKKM+DiRdgpMh f0F6DLuU4Zu0gV/dtzbbAwvofC+d04KMgXMh6+xxNH9a4E2lFMHzQDhD5EDrpBzud9oDUAULLvm zUCf1jrSFbPpNk9rCtg== X-Proofpoint-ORIG-GUID: 96uafW-66uF3Oi3aSQqqfhLJ_UvZnWto X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1143,Hydra:6.1.51,FMLib:17.12.100.49 definitions=2026-05-15_02,2026-05-13_01,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 adultscore=0 malwarescore=0 clxscore=1015 impostorscore=0 bulkscore=0 lowpriorityscore=0 phishscore=0 suspectscore=0 priorityscore=1501 spamscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2605130000 definitions=main-2605150111 On 5/15/26 1:01 PM, Dmitry Baryshkov wrote: > On 15/05/2026 14:00, Konrad Dybcio wrote: >> On 4/28/26 9:36 PM, Dmitry Baryshkov wrote: >>> With the default PSCI suspend value for cluster idle state Lenovo Yoga >>> C630 isn't stable enough. For example it might reset if display device >>> isn't probed early enough. Drop one of the bits from the PSCI suspend >>> value to make C630 work in stable way. >>> >>> Fixes: a1ade6cac5a2 ("arm64: dts: qcom: sdm845: Switch PSCI cpu idle states from PC to OSI") >>> Signed-off-by: Dmitry Baryshkov >>> --- >>>   arch/arm64/boot/dts/qcom/sdm850-lenovo-yoga-c630.dts | 4 ++++ >>>   1 file changed, 4 insertions(+) >>> >>> diff --git a/arch/arm64/boot/dts/qcom/sdm850-lenovo-yoga-c630.dts b/arch/arm64/boot/dts/qcom/sdm850-lenovo-yoga-c630.dts >>> index e41200839dbe..e6c67016552a 100644 >>> --- a/arch/arm64/boot/dts/qcom/sdm850-lenovo-yoga-c630.dts >>> +++ b/arch/arm64/boot/dts/qcom/sdm850-lenovo-yoga-c630.dts >>> @@ -347,6 +347,10 @@ &cdsp_pas { >>>       status = "okay"; >>>   }; >>>   +&cluster_sleep_0 { >>> +    arm,psci-suspend-param = <0x41003244>; >>> +}; >> >> Is it better if you do hack in a >> >> qmp_send(qmp, "{class: cx_mol, res: cx, val: mol}"); > > Any clarification? Then I can try hacking it in. This will send a message to AOSS to intrusct it to prevent CX from collapsing You'd need this somewhere early enough so as not to crash alternatively, the good ol' diff --git a/drivers/interconnect/qcom/sdm845.c b/drivers/interconnect/qcom/sdm845.c index 6d5bbeda0689..2fea94618839 100644 --- a/drivers/interconnect/qcom/sdm845.c +++ b/drivers/interconnect/qcom/sdm845.c @@ -1786,7 +1786,7 @@ static struct platform_driver qnoc_driver = { .driver = { .name = "qnoc-sdm845", .of_match_table = qnoc_of_match, - .sync_state = icc_sync_state, + //.sync_state = icc_sync_state, }, }; module_platform_driver(qnoc_driver); should give you a similar result Konrad