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Mon, 24 Aug 2026 04:07:45 -0700 (PDT) X-Received: by 2002:a05:6a00:4145:b0:847:9315:fb8b with SMTP id d2e1a72fcca58-851f9a9f0bamr43921428b3a.6.1787569664916; Mon, 24 Aug 2026 04:07:44 -0700 (PDT) Received: from [10.217.218.158] ([202.46.22.19]) by smtp.gmail.com with ESMTPSA id d2e1a72fcca58-8520eed88f8sm1864508b3a.10.2026.08.24.04.07.38 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Mon, 24 Aug 2026 04:07:44 -0700 (PDT) Message-ID: Date: Mon, 24 Aug 2026 16:37:37 +0530 Precedence: bulk X-Mailing-List: linux-pm@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH 3/7] soc: qcom: geni-se: Add helper to set SE clock rate via OPP To: Praveen Talari , konrad.dybcio@oss.qualcomm.com, Sudeep Holla , Cristian Marussi , Ulf Hansson , Bjorn Andersson , Konrad Dybcio , Greg Kroah-Hartman , Jiri Slaby , Mark Brown , Viken Dadhaniya , Andi Shyti Cc: chandana.chiluveru@oss.qualcomm.com, arm-scmi@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-pm@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-msm@vger.kernel.org, linux-serial@vger.kernel.org, linux-spi@vger.kernel.org, linux-i2c@vger.kernel.org References: <20260805-derive_clk_perf_tbl_from_perf_domain_opp_table-v1-0-61171ab1cdce@oss.qualcomm.com> <20260805-derive_clk_perf_tbl_from_perf_domain_opp_table-v1-3-61171ab1cdce@oss.qualcomm.com> Content-Language: en-US From: Mukesh Savaliya In-Reply-To: <20260805-derive_clk_perf_tbl_from_perf_domain_opp_table-v1-3-61171ab1cdce@oss.qualcomm.com> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit X-Proofpoint-Spam-Info: AW1haW4tMjYwODI0MDA5MyBTYWx0ZWRfX128iQpFjYYio iw+9T42xrHHdmJQXcQ6XqcZEx+CT8XEHsomUBEkl88v66tKc7eANmiGlBf1mDcmNEgMotGfk466 oG8UUWpNA8TmJz71ObkF20oF+LXtBic= X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwODI0MDA5MyBTYWx0ZWRfX+27SBMoqgIDV TIKhBIp9SP/fDBUN2hwxJF6tetimHlFyfPdGsI6HzCJVtw3eBxBhJpYErGtdtLQqeWI4LHFFMdR ABJj5DuJp/UTFLQ2tbFq4o4V0ieuUvBfxkS8MEUfIe2vpSgbQ8T55lc/Cy/hUvwblp6sSeatNmR voKsopPvUU7j0UspS27fZiTFJC0D7zHRdrH8VVp0cdK/hD+F/sOtiCGB0Z2z3UYkBXeKzBeGG9E oM5z+KsuHLxcxepaN+hlY6BnxYKttiIYjHGMZxO7qWoCcTXIUA3R1gVGHmSYnIuamUpSQ/Wf1rt 6XxcBS+ZDlf2tf1TtuFhZ77FZ9gDsNouN1EO0wU9XtOB6kL/OOv6ROH5AqMd5fBlTWT1VELIjYf QtaPbPOq/SpAPE0A/s/WEyTTULvrX5rjyc/UxlCzyXR/l0/Ae4H8AOGz91RvLwzOmvPEnCvMh3/ P17j0Pp/XTlts/VJwVA== X-Proofpoint-ORIG-GUID: 0XCSfJkTV0ZjXfMdT9iorIz9XcVKfp6y X-Authority-Analysis: v=2.4 cv=CoCPtH4D c=1 sm=1 tr=0 ts=6a8c2602 cx=c_pps a=m5Vt/hrsBiPMCU0y4gIsQw==:117 a=fChuTYTh2wq5r3m49p7fHw==:17 a=IkcTkHD0fZMA:10 a=Sv0fKeRqtYgA:10 a=s4-Qcg_JpJYA:10 a=VkNPw1HP01LnGYTKEx00:22 a=u7WPNUs3qKkmUXheDGA7:22 a=3WHJM1ZQz_JShphwDgj5:22 a=EUspDBNiAAAA:8 a=9aiwZt7zaXvVnErAyWsA:9 a=QEXdDO2ut3YA:10 a=ZXulRonScM0A:10 a=IoOABgeZipijB_acs4fv:22 X-Proofpoint-GUID: 0XCSfJkTV0ZjXfMdT9iorIz9XcVKfp6y 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=2026-08-24_03,2026-08-21_02,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 suspectscore=0 priorityscore=1501 malwarescore=0 phishscore=0 bulkscore=0 adultscore=0 spamscore=0 clxscore=1015 lowpriorityscore=0 impostorscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2606150000 definitions=main-2608240093 On 8/5/2026 1:27 AM, Praveen Talari wrote: > GENI protocol drivers need a common way to scale the SE source clock > through the OPP framework. However, the device that owns the OPP table > differs depending on how the SE resources are managed. For Linux clock > managed platforms, the OPP table is associated with the SE device, > whereas on firmware-managed platforms it is associated with the > performance power-domain device. This requires protocol drivers to be > aware of the underlying resource management model when requesting > frequency changes. > > Introduce geni_se_set_rate(), a common helper that abstracts this > difference and applies the requested frequency through the appropriate > device. The helper automatically selects the performance-domain device > when power domains are attached and falls back to the SE device > otherwise. > > Signed-off-by: Praveen Talari > --- Acked-by: Mukesh Kumar Savaliya