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Thu, 26 Feb 2026 22:16:35 -0800 (PST) Received: from hu-ptalari-hyd.qualcomm.com ([202.46.22.19]) by smtp.gmail.com with ESMTPSA id d9443c01a7336-2adfb6a043dsm64813025ad.54.2026.02.26.22.16.29 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 26 Feb 2026 22:16:35 -0800 (PST) From: Praveen Talari To: Andi Shyti , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Mukesh Kumar Savaliya , Viken Dadhaniya , Bjorn Andersson , Konrad Dybcio , Praveen Talari , 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, konrad.dybcio@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 Subject: [PATCH v6 06/13] soc: qcom: geni-se: Introduce helper API for attaching power domains Date: Fri, 27 Feb 2026 11:45:37 +0530 Message-Id: <20260227061544.1785978-7-praveen.talari@oss.qualcomm.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20260227061544.1785978-1-praveen.talari@oss.qualcomm.com> References: <20260227061544.1785978-1-praveen.talari@oss.qualcomm.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-Proofpoint-ORIG-GUID: wFC9S2lmp9x_L5VaQuj8ULC-jxcPjDIK X-Authority-Analysis: v=2.4 cv=Vtouwu2n c=1 sm=1 tr=0 ts=69a136c4 cx=c_pps a=MTSHoo12Qbhz2p7MsH1ifg==:117 a=fChuTYTh2wq5r3m49p7fHw==:17 a=HzLeVaNsDn8A:10 a=s4-Qcg_JpJYA:10 a=VkNPw1HP01LnGYTKEx00:22 a=u7WPNUs3qKkmUXheDGA7:22 a=_K5XuSEh1TEqbUxoQ0s3:22 a=EUspDBNiAAAA:8 a=PijyICl8wWZdqj615XkA:9 a=GvdueXVYPmCkWapjIL-Q:22 X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwMjI3MDA1MCBTYWx0ZWRfXz0E6w4MV1hKP gKgHEqSmhAGftR4JcnaRoaZCUzjbjHDgIWVn3q/PI/XhymuRmHkeQEIXR13QTsnL7lRTC8h++A1 3hgpLmWJFuHK18ht1ECUxeNMRhBF2o+zxIu+gwjSww39Oq4Ud0NavINUR64FQM1Sl3gqJngX0XC Xcy0Y13rwOAB8GsIyWm/N9kQrhT7H9IIwzMSDbAe8YnghgZHj2lcQIdIZ/tYDrm/pZsmd/vK9fg ihBq1+HdmvAf7JEuSnkrR/vc/eu9Toag6OgPBqGO/6NmTjlq4oKcG96qkFK2bOfeyMw+8+r0Z9V C+Sqrqecdnfz5wAIJRhVhKAeBIfDEVFvEz4MI1edYSRFqjIwOX6opxrHwvRQITV/ewU3GtrHUvz +XFK5HdKYHPjqlzD9P1EqNQVd7kKWtiNDxB0gb2/6mY4VHbnowlT41xmZIpQudL7lI8YHXye1ZW aq/EdSOdQim46a/kvVQ== X-Proofpoint-GUID: wFC9S2lmp9x_L5VaQuj8ULC-jxcPjDIK X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1121,Hydra:6.1.51,FMLib:17.12.100.49 definitions=2026-02-27_01,2026-02-26_01,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 lowpriorityscore=0 clxscore=1015 phishscore=0 bulkscore=0 spamscore=0 impostorscore=0 suspectscore=0 adultscore=0 malwarescore=0 priorityscore=1501 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2602130000 definitions=main-2602270050 Content-Type: text/plain; charset="utf-8" The GENI Serial Engine drivers (I2C, SPI, and SERIAL) currently handle the attachment of power domains. This often leads to duplicated code logic across different driver probe functions. Introduce a new helper API, geni_se_domain_attach(), to centralize the logic for attaching "power" and "perf" domains to the GENI SE device. Signed-off-by: Praveen Talari Reviewed-by: Konrad Dybcio --- v5->v6 Konrad - Updated return values v4->v5 Konrad - Used devm_pm_domain_attach_list() v3->v4 Konrad - Updated function documentation --- drivers/soc/qcom/qcom-geni-se.c | 31 +++++++++++++++++++++++++++++++ include/linux/soc/qcom/geni-se.h | 4 ++++ 2 files changed, 35 insertions(+) diff --git a/drivers/soc/qcom/qcom-geni-se.c b/drivers/soc/qcom/qcom-geni-s= e.c index 6e58568701b0..13ad3a51b58c 100644 --- a/drivers/soc/qcom/qcom-geni-se.c +++ b/drivers/soc/qcom/qcom-geni-se.c @@ -19,6 +19,7 @@ #include #include #include +#include #include #include =20 @@ -1095,6 +1096,36 @@ int geni_se_resources_activate(struct geni_se *se) } EXPORT_SYMBOL_GPL(geni_se_resources_activate); =20 +/** + * geni_se_domain_attach() - Attach power domains to a GENI SE device. + * @se: Pointer to the geni_se structure representing the GENI SE device. + * + * This function attaches the power domains ("power" and "perf") required + * in the SCMI auto-VM environment to the GENI Serial Engine device. It + * initializes se->pd_list with the attached domains. + * + * Return: 0 on success, or a negative error code on failure. + */ +int geni_se_domain_attach(struct geni_se *se) +{ + struct dev_pm_domain_attach_data pd_data =3D { + .pd_flags =3D PD_FLAG_DEV_LINK_ON, + .pd_names =3D (const char*[]) { "power", "perf" }, + .num_pd_names =3D 2, + }; + int ret; + + ret =3D devm_pm_domain_attach_list(se->dev, + &pd_data, &se->pd_list); + if (ret =3D=3D 0) + return -ENODEV; + else if (ret < 0) + return ret; + + return 0; +} +EXPORT_SYMBOL_GPL(geni_se_domain_attach); + /** * geni_se_resources_init() - Initialize resources for a GENI SE device. * @se: Pointer to the geni_se structure representing the GENI SE device. diff --git a/include/linux/soc/qcom/geni-se.h b/include/linux/soc/qcom/geni= -se.h index 36a68149345c..5f75159c5531 100644 --- a/include/linux/soc/qcom/geni-se.h +++ b/include/linux/soc/qcom/geni-se.h @@ -64,6 +64,7 @@ struct geni_icc_path { * @num_clk_levels: Number of valid clock levels in clk_perf_tbl * @clk_perf_tbl: Table of clock frequency input to serial engine clock * @icc_paths: Array of ICC paths for SE + * @pd_list: Power domain list for managing power domains * @has_opp: Indicates if OPP is supported */ struct geni_se { @@ -75,6 +76,7 @@ struct geni_se { unsigned int num_clk_levels; unsigned long *clk_perf_tbl; struct geni_icc_path icc_paths[3]; + struct dev_pm_domain_list *pd_list; bool has_opp; }; =20 @@ -546,5 +548,7 @@ int geni_se_resources_activate(struct geni_se *se); int geni_se_resources_deactivate(struct geni_se *se); =20 int geni_load_se_firmware(struct geni_se *se, enum geni_se_protocol_type p= rotocol); + +int geni_se_domain_attach(struct geni_se *se); #endif #endif --=20 2.34.1