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Tue, 16 Jun 2026 05:27:11 -0700 (PDT) X-Received: by 2002:a05:622a:148d:b0:516:cae0:c6e9 with SMTP id d75a77b69052e-517fdc7df1cmr172112991cf.0.1781612831079; Tue, 16 Jun 2026 05:27:11 -0700 (PDT) Received: from [192.168.120.170] ([178.235.128.140]) by smtp.gmail.com with ESMTPSA id a640c23a62f3a-bfdb4420823sm643729366b.4.2026.06.16.05.27.08 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Tue, 16 Jun 2026 05:27:10 -0700 (PDT) Message-ID: Date: Tue, 16 Jun 2026 14:27:08 +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 1/2] dt-bindings: soc: qcom: Document CDSP Power Management To: Vignesh Viswanathan , Bjorn Andersson , Konrad Dybcio , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Liam Girdwood , Mark Brown Cc: linux-arm-msm@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org References: <20260520-cdsp-power-v1-0-85eb9501a1cd@oss.qualcomm.com> <20260520-cdsp-power-v1-1-85eb9501a1cd@oss.qualcomm.com> <8d9f78d2-d414-4ffb-bdf2-e2e7bda73aaf@oss.qualcomm.com> Content-Language: en-US From: Konrad Dybcio In-Reply-To: <8d9f78d2-d414-4ffb-bdf2-e2e7bda73aaf@oss.qualcomm.com> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwNjE2MDEyNiBTYWx0ZWRfX9anNCJTtcfPS Ku34ei+xAaXHYHyoH1xT46msK8WFSpqJ25vV4V9yOj6ffv+89M1XKlV/dUV5AsKS8aNirCsd6Qy 65+EY7kEovIMF1Y3xnnUqkc+RzfTlH7a4MFmr9zcB+2jq3oAhqWveetQUmt9PwFVM9xxFlW/Eoq YNxr2ar9w+7iske1WVts6UBFnamcDo34NfdnlMBD6cmmG5wpr3CjPjEJ/eVdHDsFYlvzsAvEy1Y WmfsKIZTm2aafoOSNoKPJzv9BNiT85M7KzhtU0uR48QKDmwX+298+zTdQqRymtI6kArtMq+OM/q pSOVzTffWMUA4wXKm6zzZVYtZ9hgBa2mcgAj2+tHRh+Fv/FAEVgeSfTOhXCsFwGnVwgw6AaN4HC Roctl0Yo8ywuBQg4ViS1mRzMdRdz4sXoSBytXutC2jdX4r/r5caflcUgZzLIUFE4cVz4C8hIRFv FxG7i5fALQaMfzWC9PA== X-Proofpoint-Spam-Info: AW1haW4tMjYwNjE2MDEyNiBTYWx0ZWRfX3aCSdJ6MNNX2 Utb0xXJKO3rIGqzzBSO5JPbyvzuBOMq6nVAbsNwpL2nd+63aGa8X7GybLE79hZc4Ik8Tvy5ncz/ pMFudryurBTj/0lkq3Ylgd40EZf2e5Y= X-Proofpoint-ORIG-GUID: quo2qT625HlNBrF1M1Axl7ulET9t5HEM X-Authority-Analysis: v=2.4 cv=dZawG3Xe c=1 sm=1 tr=0 ts=6a314120 cx=c_pps a=JbAStetqSzwMeJznSMzCyw==:117 a=PRfkaYvzSr8QmIIGAkY2Sg==:17 a=IkcTkHD0fZMA:10 a=FelO9ux0wxsA:10 a=s4-Qcg_JpJYA:10 a=VkNPw1HP01LnGYTKEx00:22 a=u7WPNUs3qKkmUXheDGA7:22 a=DJpcGTmdVt4CTyJn9g5Z:22 a=EUspDBNiAAAA:8 a=sLTQJQ2odkIT5fSfO8wA:9 a=QEXdDO2ut3YA:10 a=uxP6HrT_eTzRwkO_Te1X:22 X-Proofpoint-GUID: quo2qT625HlNBrF1M1Axl7ulET9t5HEM X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1143,Hydra:6.1.125,FMLib:17.12.100.49 definitions=2026-06-16_03,2026-06-15_04,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 spamscore=0 lowpriorityscore=0 clxscore=1015 impostorscore=0 suspectscore=0 phishscore=0 priorityscore=1501 malwarescore=0 bulkscore=0 adultscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2606040000 definitions=main-2606160126 On 5/26/26 9:38 AM, Vignesh Viswanathan wrote: > > > On 5/20/2026 3:29 PM, Konrad Dybcio wrote: >> On 5/19/26 9:05 PM, Vignesh Viswanathan wrote: >>> Add documentation for the CDSP Power Management driver, which handles >>> Dynamic Clock and Voltage Scaling (DCVS) requests via SMEM, manages Low >>> Power Mode (LPM) transitions via MPM handshake, and provides virtual >>> regulators for the remoteproc driver to control CDSP power rails. >>> >>> Signed-off-by: Vignesh Viswanathan >>> --- [...] >> MPM is a top-level peripheral, but this is a slice dedicated to the >> CDSP so maybe it'd pass, but.. >> >>> + <0x0 0x26018018 0x0 0x4>; >> >> This is a single random register within the CDSP's register space, so >> we should definitely be able to describe this better.. > > Will document this more clearly in the next version. By "describe" I meant "represent in DTS" - it may be that we need to expose a syscon or something similar Konrad