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[78.88.45.245]) by smtp.gmail.com with ESMTPSA id a640c23a62f3a-acaa1bb3167sm134011966b.21.2025.04.09.11.35.30 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Wed, 09 Apr 2025 11:35:33 -0700 (PDT) Message-ID: <66f8d957-f7a5-4aec-b8e7-5bcc7ff7f569@oss.qualcomm.com> Date: Wed, 9 Apr 2025 20:35:29 +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 09/19] arm: dts: qcom: sdx55/sdx65: Fix CPU power-domain-names To: Ulf Hansson , Konrad Dybcio Cc: "Rob Herring (Arm)" , Krzysztof Kozlowski , Conor Dooley , Chen-Yu Tsai , Jernej Skrabec , Samuel Holland , "Rafael J. Wysocki" , Viresh Kumar , Matthias Brugger , AngeloGioacchino Del Regno , Vincenzo Frascino , Liviu Dudau , Sudeep Holla , Lorenzo Pieralisi , Bjorn Andersson , Konrad Dybcio , Thomas Bogendoerfer , Viresh Kumar , Nishanth Menon , Stephen Boyd , zhouyanjie@wanyeetech.com, Conor Dooley , Nicolas Ferre , Claudiu Beznea , Steen Hegelund , Daniel Machon , UNGLinuxDriver@microchip.com, Shawn Guo , Sascha Hauer , Pengutronix Kernel Team , Fabio Estevam , Heiko Stuebner , Neil Armstrong , Kevin Hilman , Jerome Brunet , Martin Blumenstingl , Geert Uytterhoeven , Magnus Damm , devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-sunxi@lists.linux.dev, linux-kernel@vger.kernel.org, linux-pm@vger.kernel.org, linux-mediatek@lists.infradead.org, linux-arm-msm@vger.kernel.org, linux-mips@vger.kernel.org, imx@lists.linux.dev, linux-rockchip@lists.infradead.org, linux-amlogic@lists.infradead.org, linux-renesas-soc@vger.kernel.org References: <20250403-dt-cpu-schema-v1-0-076be7171a85@kernel.org> <20250403-dt-cpu-schema-v1-9-076be7171a85@kernel.org> <03011a33-174b-4027-bdd2-043aa685380b@oss.qualcomm.com> Content-Language: en-US From: Konrad Dybcio In-Reply-To: Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit X-Proofpoint-GUID: zpPsjL5X089he5rExBauDrMuTB-OEXHz X-Proofpoint-ORIG-GUID: zpPsjL5X089he5rExBauDrMuTB-OEXHz X-Authority-Analysis: v=2.4 cv=b7Oy4sGx c=1 sm=1 tr=0 ts=67f6bdf7 cx=c_pps a=hnmNkyzTK/kJ09Xio7VxxA==:117 a=FpWmc02/iXfjRdCD7H54yg==:17 a=IkcTkHD0fZMA:10 a=XR8D0OoHHMoA:10 a=EUspDBNiAAAA:8 a=VwQbUJbxAAAA:8 a=OWbFrMhi_jq_UiG4ISsA:9 a=QEXdDO2ut3YA:10 a=PEH46H7Ffwr30OY-TuGO:22 X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1095,Hydra:6.0.680,FMLib:17.12.68.34 definitions=2025-04-09_06,2025-04-08_04,2024-11-22_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 adultscore=0 malwarescore=0 priorityscore=1501 suspectscore=0 mlxscore=0 impostorscore=0 phishscore=0 clxscore=1015 spamscore=0 mlxlogscore=788 bulkscore=0 lowpriorityscore=0 classifier=spam authscore=0 authtc=n/a authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.19.0-2502280000 definitions=main-2504090122 On 4/7/25 6:27 PM, Ulf Hansson wrote: > On Fri, 4 Apr 2025 at 22:41, Konrad Dybcio > wrote: >> >> On 4/4/25 4:59 AM, Rob Herring (Arm) wrote: >>> "rpmhpd" is not documented nor used anywhere. As the enable-method is >>> "psci" use "psci" for the power-domain name. >>> >>> Signed-off-by: Rob Herring (Arm) >>> --- >> >> "psci" is what we want here, but these platforms require some more >> massaging.. > > So this isn't for CPU performance scaling? Nope! > >> >> These SoCs don't seem to have any PSCI idle states (deeper than WFI) >> described, which is no bueno, as they support some.. > > If PSCI PC mode is the only supported CPU suspend mode, we don't need > the power-domain topology to be described in DT as it's optional to > use. > > Is this a PC or OSI based platform? Unfortunately it seems like only PC mode is implemented. Konrad