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Wed, 21 Oct 2026 03:35:05 -0700 (PDT) X-Received: by 2002:a05:620a:17ab:b0:93e:54d2:2283 with SMTP id af79cd13be357-93f57fd125bmr366236185a.6.1792578904793; Wed, 21 Oct 2026 03:35:04 -0700 (PDT) Received: from [192.168.226.26] ([178.235.128.140]) by smtp.gmail.com with ESMTPSA id 4fb4d7f45d1cf-6b403132037sm647584a12.26.2026.10.21.03.35.01 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Wed, 21 Oct 2026 03:35:03 -0700 (PDT) Message-ID: <26d4788b-fa4f-4f37-bd9d-ded731fb1e0a@oss.qualcomm.com> Date: Wed, 21 Oct 2026 12:35:00 +0200 X-Archived-By: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH v2 3/4] arm64: dts: qcom: Skip suspend mode switch on MSM8917 and MSM8937 To: Reza Kurniawan , Mark Rutland , Lorenzo Pieralisi , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Ulf Hansson , "Rafael J. Wysocki" , Daniel Lezcano , Christian Loehle , Bjorn Andersson , Konrad Dybcio , Abel Vesa , Val Packett Cc: linux-arm-kernel@lists.infradead.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-pm@vger.kernel.org, linux-arm-msm@vger.kernel.org References: <20261018-psci-fix-v2-0-35f65b59eb9a@gmail.com> <20261018-psci-fix-v2-3-35f65b59eb9a@gmail.com> Content-Language: en-US From: Konrad Dybcio In-Reply-To: <20261018-psci-fix-v2-3-35f65b59eb9a@gmail.com> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit X-Authority-Analysis: v=2.4 cv=d4JgWhjE c=1 sm=1 tr=0 ts=6ad8955a cx=c_pps a=qKBjSQ1v91RyAK45QCPf5w==:117 a=PRfkaYvzSr8QmIIGAkY2Sg==:17 a=IkcTkHD0fZMA:10 a=660iZSQnnn4A:10 a=s4-Qcg_JpJYA:10 a=VkNPw1HP01LnGYTKEx00:22 a=u7WPNUs3qKkmUXheDGA7:22 a=eoimf2acIAo5FJnRuUoq:22 a=pGLkceISAAAA:8 a=EUspDBNiAAAA:8 a=J5tutDk3-wnuWQUDz_8A:9 a=QEXdDO2ut3YA:10 a=NFOGd7dJGGMPyQGDc5-O:22 X-Proofpoint-Spam-Info: AW1haW4tMjYxMDIxMDA0MiBTYWx0ZWRfX502/YmbzXGO0 cltvF/4g2/P++T3wz13sgsrN7v01eQq4EYG0xIsMgoukp4kNYyFB5abtW/yo2hg9aLV8qWfrb+T AQT23+rZXVBBXSWzOOy7m/lO9o00AtQ= X-Proofpoint-GUID: KVSs84ajw9bqPWu6fJt9oKHxgJoJqpdW X-Proofpoint-ORIG-GUID: KVSs84ajw9bqPWu6fJt9oKHxgJoJqpdW X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYxMDIxMDA0MiBTYWx0ZWRfX4lhMLtCNP7S9 +MQM+L6mSVuRXZxDHK+62YZhLEfOeTw6+mt89v6DDmg0b2TVy3iL3ECmrDZF4h3sSqzEeD1DxIB wtwG3VnonjIN0W3m7yeoVgmbKb1aTgTUIlvgOoTzEgW7OtKjShoGuWp2jY9ui0ZeFpxadpeJAVc zMGt1DKJHEvH3GfV06EMX5JTKDA4WktSGPPSFfnPxuRJXfoYBB97O/XWDvKwwRJ0k07H7AFXrbd 4EzkOoWZ0tq1E1Xa8ikMTw/2SK8RZeIuB7ixL5tvbjSLQoq+PTHot81kNyhL6oyv1NMur0x0UKk KXstBbMTJ5edC7SDAD5tow4S1/6c+TrmLlGJu5iSEIhZS/Uxeygt9b7FQW9SLi/bxH5QJi/19j6 rB6oyS34H6sjdXpKtjVsMfn3/EShwZSGYlHkes5fwYQw+vM2UGnFnNso2NCAxgEMDYPwDa2XMvx /883r7qV6RR06VGU8Mg== 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=2026-10-21_03,2026-10-19_02,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 clxscore=1015 suspectscore=0 spamscore=0 malwarescore=0 priorityscore=1501 adultscore=0 impostorscore=0 bulkscore=0 lowpriorityscore=0 phishscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2610190000 definitions=main-2610210042 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.9.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20261021_113509_640719_5C3094AD X-CRM114-Status: GOOD ( 17.22 ) X-Spam-Score: -0.9 (/) 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=-12.7 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,MAILING_LIST_MULTI, SPF_HELO_NONE,SPF_PASS,USER_AGENT_SANE_1 autolearn=ham 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 10/18/26 6:29 AM, Reza Kurniawan wrote: > The PSCI firmware on Qualcomm MSM8917 and MSM8937 reports to support > OS-initiated suspend mode but rejects call to PSCI_SET_SUSPEND_MODE with > NOT_SUPPORTED. psci_set_osi_mode() then fails with -EOPNOTSUPP and > probe of psci-cpuidle-domain is aborted: > > psci-cpuidle-domain psci: probe with driver psci-cpuidle-domain failed > with error -95 > > Skip the mode switch on these platforms and continue with the topology > that was already built. > > This is expected to be safe since it matches the downstream kernel > behavior, which manages the cluster power level in addition to the CPU > power level, just like Linux does when OSI is supported. > > Signed-off-by: Reza Kurniawan > --- Reviewed-by: Konrad Dybcio Konrad