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[103.229.18.19]) by smtp.gmail.com with ESMTPSA id d9443c01a7336-2cf8efe3afbsm45993805ad.33.2026.07.24.00.19.40 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 24 Jul 2026 00:19:46 -0700 (PDT) From: Pragnesh Papaniya Date: Fri, 24 Jul 2026 12:48:14 +0530 Subject: [PATCH RFC 09/10] arm64: dts: qcom: hamoa: Enable LLCC/DDR/DDR_QOS DVFS Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit Message-Id: <20260724-rfc_v8_scmi_memlat-v1-9-cb732bcff1f4@oss.qualcomm.com> References: <20260724-rfc_v8_scmi_memlat-v1-0-cb732bcff1f4@oss.qualcomm.com> In-Reply-To: <20260724-rfc_v8_scmi_memlat-v1-0-cb732bcff1f4@oss.qualcomm.com> To: Sudeep Holla , Cristian Marussi , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Sibi Sankar , MyungJoo Ham , Kyungmin Park , Chanwoo Choi , Dmitry Osipenko , Thierry Reding , Jonathan Hunter , Bjorn Andersson , Konrad Dybcio Cc: Pragnesh Papaniya , Rajendra Nayak , Pankaj Patil , linux-arm-msm@vger.kernel.org, linux-kernel@vger.kernel.org, arm-scmi@vger.kernel.org, linux-arm-kernel@lists.infradead.org, devicetree@vger.kernel.org, linux-pm@vger.kernel.org, linux-tegra@vger.kernel.org X-Mailer: b4 0.14.3 X-Developer-Signature: v=1; a=ed25519-sha256; t=1784877514; l=1007; i=pragnesh.papaniya@oss.qualcomm.com; s=20260120; h=from:subject:message-id; bh=8tKdt4fKJhT/tYsqDka1HLDRza+yiVyfZcS7BTSC5l0=; b=ElL7bMtCXym3FQCEHsNOAZ7OqHreyEim7+hA/4Ik410F2ff4uLS6Ygqlqda19xM3CYybnTvEV WCJ5kWpaYhwCMF/CKunvlKt6HUtpNwDIoAQtQGMSPWQdpDEw01Z8B8w X-Developer-Key: i=pragnesh.papaniya@oss.qualcomm.com; a=ed25519; pk=09P9nFmZLXJ9+4Jx10ZK5rIW0Fmk79A/DLErm6aVA0c= X-Proofpoint-Spam-Info: AW1haW4tMjYwNzI0MDA2NSBTYWx0ZWRfX3C7CUAgMWOK+ W511Z1AaXzgz/PgrVKs8ZTHjBGv//Afhls9XpTfSjZupDHgBDh1pVvdyFeDyo6N/AJ/Gr2w9eex rO/Kx0jvvLUeRyWlWcqegnIHa2lP8k0= X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwNzI0MDA2NSBTYWx0ZWRfX79u8T6NNHQOH M/5UdtdlQjROLTcbCMXqod5lud4WOEyN4Maho9JrzWI8omw5IHSyAJDVY3Kt0zZ64yJGoWVvkoT SFexX48wsyrZesQO4g/EnEOzX+PjIgRYQ7dNUGrQjPlKLH8G24IhzMpzI3b/JLBEJHodb2Abuqp WDIlNdBlqwxyPDmqCNEWnw2wxTt4mANrFSxr1tv8TWszLzxee9Eccb0PhU2N2cdrznEwBkS5GaA x9LPvY4vmtZuyFcu4TLdbCovYwzZ2wfFaAG8jlZFLzBwp38rJuvAhz+2OF6kTsv8Zzpq8g9oJIW 6bcXWyoxlCWfftnE3HP+lhkZCMPW6DoHqXhWzaqwxZKXNxKyikX5iHsb0RWOoRLyL/2AJiwMt5l K+mattZDv1wvs6mkcdE5xDKcTIPzmGNHN0my581Y53n1C7nWk3hcEwAThCXSYiyilrn6xw6OFDs ZiaB5pHYXBy+YO+PMUQ== X-Authority-Analysis: v=2.4 cv=Z9Dc2nRA c=1 sm=1 tr=0 ts=6a631214 cx=c_pps a=MTSHoo12Qbhz2p7MsH1ifg==:117 a=Ou0eQOY4+eZoSc0qltEV5Q==:17 a=IkcTkHD0fZMA:10 a=RAioF0-LDSMA:10 a=s4-Qcg_JpJYA:10 a=VkNPw1HP01LnGYTKEx00:22 a=u7WPNUs3qKkmUXheDGA7:22 a=_glEPmIy2e8OvE2BGh3C:22 a=EUspDBNiAAAA:8 a=8E_iI_7X9U7aA52Mj5gA:9 a=QEXdDO2ut3YA:10 a=GvdueXVYPmCkWapjIL-Q:22 X-Proofpoint-GUID: PRJ8QG5fulvJwNtRoRKTjWKA4bCmpSaj X-Proofpoint-ORIG-GUID: PRJ8QG5fulvJwNtRoRKTjWKA4bCmpSaj X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1143,Hydra:6.1.134,FMLib:17.12.100.49 definitions=2026-07-24_01,2026-07-22_02,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 malwarescore=0 spamscore=0 phishscore=0 impostorscore=0 lowpriorityscore=0 adultscore=0 priorityscore=1501 suspectscore=0 bulkscore=0 clxscore=1015 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2606150000 definitions=main-2607240065 From: Sibi Sankar On Qualcomm Hamoa SoCs, the memlat governor and the mechanism for controlling the LLCC and DDR/DDR_QOS frequencies run on the CPU Control Processor (CPUCP) and are exposed via the QCOM SCMI Generic Extension protocol. Add the SCMI vendor protocol node required for the QCOM SCMI Generic Extension protocol to probe and get functional bus DVFS on Hamoa/Purwa SoCs. Signed-off-by: Sibi Sankar Signed-off-by: Pragnesh Papaniya --- arch/arm64/boot/dts/qcom/hamoa.dtsi | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/arch/arm64/boot/dts/qcom/hamoa.dtsi b/arch/arm64/boot/dts/qcom/hamoa.dtsi index 09527dcf9576..e9e75c4c4da6 100644 --- a/arch/arm64/boot/dts/qcom/hamoa.dtsi +++ b/arch/arm64/boot/dts/qcom/hamoa.dtsi @@ -340,6 +340,10 @@ scmi_dvfs: protocol@13 { reg = <0x13>; #power-domain-cells = <1>; }; + + scmi_vendor: protocol@80 { + reg = <0x80>; + }; }; }; -- 2.34.1