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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: devicetree@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-GUID: ku3MV-bO4bD3QV835R1bmQh00S2yDgVr X-Proofpoint-ORIG-GUID: ku3MV-bO4bD3QV835R1bmQh00S2yDgVr X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwMzExMDExNCBTYWx0ZWRfXza+Le43/b5kI b5IT7sQTPPv4MevJmDHVPCwYxAUHyJ7nxDJEjNstzHqJTvK5N/3igUtbjkzH3YEHJOzM39oQXb3 NTZWjrDBygLHOHvnm0LdktMDIieGE+ulQStrJKArb1pFwT58OhsADlVDm1+q0lTyyxnMw4YqfZN M91JBh5rin2odEVWkDPo1KVFpOgDfoAe60ePuSAx8xJ9//A5rNTNy+6lC+bcbuZs4uOLtbRCpdq Dt9U0eRZJpiA8Mm3SSk1QzB0iivSbpzFGwEeKPNkvnRVYowtVKEBF6wsoJpzY9ZeFmg9JfjfZsa NbQQ1WupTby5MO0yhgmpMeMwEl01m9k/CQkBxmY5hx5lX/eVCo2b0Zkis1G3W6nGvspC9nDBmC2 56GqCtvCq+ye6LQRrdNL+iro8gOdhfd83D4Eq9ELE3pk7Smpd5CFLpPKKvKuhHr+N4tFdOofXBA F33aOc4y6fQN6UoWXhg== X-Authority-Analysis: v=2.4 cv=M4JA6iws c=1 sm=1 tr=0 ts=69b16fe5 cx=c_pps a=wEM5vcRIz55oU/E2lInRtA==:117 a=FpWmc02/iXfjRdCD7H54yg==:17 a=IkcTkHD0fZMA:10 a=Yq5XynenixoA:10 a=s4-Qcg_JpJYA:10 a=VkNPw1HP01LnGYTKEx00:22 a=u7WPNUs3qKkmUXheDGA7:22 a=gowsoOTTUOVcmtlkKump:22 a=EUspDBNiAAAA:8 a=wYGpMCW26V-xmeov4-8A:9 a=QEXdDO2ut3YA:10 a=OIgjcC2v60KrkQgK7BGD:22 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 clxscore=1015 priorityscore=1501 adultscore=0 lowpriorityscore=0 phishscore=0 impostorscore=0 spamscore=0 suspectscore=0 bulkscore=0 malwarescore=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