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[78.88.45.245]) by smtp.gmail.com with ESMTPSA id a640c23a62f3a-b972de092dcsm56411066b.4.2026.03.11.06.36.33 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Wed, 11 Mar 2026 06:36:34 -0700 (PDT) Message-ID: <4e98781d-9382-41f9-98b2-2c5a25c1bf06@oss.qualcomm.com> Date: Wed, 11 Mar 2026 14:36:32 +0100 Precedence: bulk X-Mailing-List: linux-i2c@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH v6 13/13] i2c: qcom-geni: Enable I2C on SA8255p Qualcomm platforms To: Praveen Talari , Andi Shyti , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Mukesh Kumar Savaliya , Viken Dadhaniya , Bjorn Andersson , Konrad Dybcio , linux-arm-msm@vger.kernel.org, linux-i2c@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, bjorn.andersson@oss.qualcomm.com, dmitry.baryshkov@oss.qualcomm.com Cc: prasad.sodagudi@oss.qualcomm.com, aniket.randive@oss.qualcomm.com, chandana.chiluveru@oss.qualcomm.com, jyothi.seerapu@oss.qualcomm.com, chiluka.harish@oss.qualcomm.com References: <20260227061544.1785978-1-praveen.talari@oss.qualcomm.com> <20260227061544.1785978-14-praveen.talari@oss.qualcomm.com> Content-Language: en-US From: Konrad Dybcio In-Reply-To: <20260227061544.1785978-14-praveen.talari@oss.qualcomm.com> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwMzExMDExNCBTYWx0ZWRfX1+K7V1Oy9uqA P8mQNL1JpqkfvJ/kGPY/1OgkoZreA+2trVr1T9H3vKU77DnOtISWEny6BLHrQZdyANCVGVjdOaZ 9balPtw1BbPP+sa+OW4UQ3z1DMsBpjvXimL06h/wzVeYxAWc/rhyWgiv0BIu25kvtlV8RyTbMTZ TcirMnm8fYK6Fc2ZBU9WJl72NNKJSmrDN6jwob+Axw6lHB6v3A3PAAFrwzVMfjIBhsLD6nF3pJS mtoyTrF5FXzvTMWPnDpsTTKCFgtLNLwUIwK+iOEm9t8R9zZdWnlMv2JpaRMCSrXpaOjvxqr9PNv UKBXh7NwQ2qiNM+6ur6SvEsSFEYR/WU5ll2JN4XVdie47RcdCJSHF8JUZzULekw4DYlas74Ou7m za/E0Tn0ggGcgpNFTBJtEFLARccBy91fxOYEg9t91vP0jVyiEnL3KP9e3gPO/FoXroozd9uFi9s I+et3Pu/RHFEw86b3IA== X-Proofpoint-ORIG-GUID: tRFDD8hE7K379SxQluCG_pCLqq0R0nb1 X-Authority-Analysis: v=2.4 cv=Lo2fC3dc c=1 sm=1 tr=0 ts=69b16fe5 cx=c_pps a=hnmNkyzTK/kJ09Xio7VxxA==:117 a=FpWmc02/iXfjRdCD7H54yg==:17 a=IkcTkHD0fZMA:10 a=Yq5XynenixoA:10 a=s4-Qcg_JpJYA:10 a=VkNPw1HP01LnGYTKEx00:22 a=u7WPNUs3qKkmUXheDGA7:22 a=_glEPmIy2e8OvE2BGh3C:22 a=EUspDBNiAAAA:8 a=wYGpMCW26V-xmeov4-8A:9 a=QEXdDO2ut3YA:10 a=PEH46H7Ffwr30OY-TuGO:22 X-Proofpoint-GUID: tRFDD8hE7K379SxQluCG_pCLqq0R0nb1 X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1143,Hydra:6.1.51,FMLib:17.12.100.49 definitions=2026-03-11_01,2026-03-09_02,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 priorityscore=1501 clxscore=1015 impostorscore=0 bulkscore=0 malwarescore=0 phishscore=0 lowpriorityscore=0 adultscore=0 spamscore=0 suspectscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2602130000 definitions=main-2603110114 On 2/27/26 7:15 AM, Praveen Talari wrote: > The Qualcomm automotive SA8255p SoC relies on firmware to configure > platform resources, including clocks, interconnects and TLMM. > The driver requests resources operations over SCMI using power > and performance protocols. > > The SCMI power protocol enables or disables resources like clocks, > interconnect paths, and TLMM (GPIOs) using runtime PM framework APIs, > such as resume/suspend, to control power on/off. > > The SCMI performance protocol manages I2C frequency, with each > frequency rate represented by a performance level. The driver uses > geni_se_set_perf_opp() API to request the desired frequency rate.. > > As part of geni_se_set_perf_opp(), the OPP for the requested frequency > is obtained using dev_pm_opp_find_freq_floor() and the performance > level is set using dev_pm_opp_set_opp(). > > Acked-by: Viken Dadhaniya > Signed-off-by: Praveen Talari > --- Reviewed-by: Konrad Dybcio Konrad