From patchwork Thu Sep 7 06:00:28 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Krishna Chaitanya Chundru X-Patchwork-Id: 13376723 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 91F28EC874B for ; Thu, 7 Sep 2023 17:25:55 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S243467AbjIGRZ5 (ORCPT ); Thu, 7 Sep 2023 13:25:57 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:33614 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S243345AbjIGRZz (ORCPT ); Thu, 7 Sep 2023 13:25:55 -0400 Received: from mx0a-0031df01.pphosted.com (mx0a-0031df01.pphosted.com [205.220.168.131]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id E2B22CDE; Thu, 7 Sep 2023 10:25:26 -0700 (PDT) Received: from pps.filterd (m0279867.ppops.net [127.0.0.1]) by mx0a-0031df01.pphosted.com (8.17.1.19/8.17.1.19) with ESMTP id 3875npUj020188; Thu, 7 Sep 2023 06:00:59 GMT DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=quicinc.com; h=from : to : cc : subject : date : message-id; s=qcppdkim1; bh=4UZ+9/d3SUM0emzxqN6v0bSiJxRg8md3/J0gazE6Jus=; b=gm2rQaPdYM1dMA9hG4fC18hPDDutkM2tlypr2RULNAQ58tN/diNfKohTFxTdWH+ev6SF i5AsQ5T0XIVvlVf5ozahoGGZO01ju4XPnX+pLqPRknpFCgGMrEcqWBmuvbCgs8WwbrU+ Ngu9f7U5g6Eew0mF81+XPk3TY6xQO+OYOiLoPxqbTAV02xXaVMy7TclQwV4+WUYIxS0I oBg5dSbWQ1w1GJ/VfXe/SwM6oUVQEwveVWX/VsJLELtMEE+71S0ATT/lKju4XHAJ9EEH NjNsYc0VYzySmGHx2dfPsmZOn0i8/IwwfvK464nQnwEOtbQh2UcR4JewyKmeI9XVctid iQ== Received: from apblrppmta01.qualcomm.com (blr-bdr-fw-01_GlobalNAT_AllZones-Outside.qualcomm.com [103.229.18.19]) by mx0a-0031df01.pphosted.com (PPS) with ESMTPS id 3sxpt02m7x-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Thu, 07 Sep 2023 06:00:58 +0000 Received: from pps.filterd (APBLRPPMTA01.qualcomm.com [127.0.0.1]) by APBLRPPMTA01.qualcomm.com (8.17.1.5/8.17.1.5) with ESMTP id 38760tdn011300; Thu, 7 Sep 2023 06:00:55 GMT Received: from pps.reinject (localhost [127.0.0.1]) by APBLRPPMTA01.qualcomm.com (PPS) with ESMTP id 3sux4kjqum-1; Thu, 07 Sep 2023 06:00:55 +0000 Received: from APBLRPPMTA01.qualcomm.com (APBLRPPMTA01.qualcomm.com [127.0.0.1]) by pps.reinject (8.17.1.5/8.17.1.5) with ESMTP id 38760sNR011295; Thu, 7 Sep 2023 06:00:54 GMT Received: from hu-sgudaval-hyd.qualcomm.com (hu-krichai-hyd.qualcomm.com [10.213.110.112]) by APBLRPPMTA01.qualcomm.com (PPS) with ESMTP id 38760sRL011294; Thu, 07 Sep 2023 06:00:54 +0000 Received: by hu-sgudaval-hyd.qualcomm.com (Postfix, from userid 4058933) id E6FB513A9; Thu, 7 Sep 2023 11:30:53 +0530 (+0530) From: Krishna chaitanya chundru To: agross@kernel.org, andersson@kernel.org, konrad.dybcio@linaro.org, krzysztof.kozlowski+dt@linaro.org, conor+dt@kernel.org, vireshk@kernel.org, nm@ti.com, sboyd@kernel.org, mani@kernel.org Cc: lpieralisi@kernel.org, kw@linux.com, robh@kernel.org, bhelgaas@google.com, rafael@kernel.org, linux-arm-msm@vger.kernel.org, linux-pci@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-pm@vger.kernel.org, quic_vbadigan@quicinc.com, quic_nitegupt@quicinc.com, quic_skananth@quicinc.com, quic_ramkri@quicinc.com, quic_parass@quicinc.com, Krishna chaitanya chundru Subject: [PATCH v5 0/5] PCI: qcom: Add support for OPP Date: Thu, 7 Sep 2023 11:30:28 +0530 Message-Id: <1694066433-8677-1-git-send-email-quic_krichai@quicinc.com> X-Mailer: git-send-email 2.7.4 X-QCInternal: smtphost X-QCInternal: smtphost X-Proofpoint-Virus-Version: vendor=nai engine=6200 definitions=5800 signatures=585085 X-Proofpoint-Virus-Version: vendor=nai engine=6200 definitions=5800 signatures=585085 X-Proofpoint-ORIG-GUID: 8W5aLJY1N9CQqKdZdvw0uQdbuFlbHFoH X-Proofpoint-GUID: 8W5aLJY1N9CQqKdZdvw0uQdbuFlbHFoH X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.267,Aquarius:18.0.957,Hydra:6.0.601,FMLib:17.11.176.26 definitions=2023-09-06_12,2023-09-05_01,2023-05-22_02 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 clxscore=1011 spamscore=0 mlxscore=0 phishscore=0 impostorscore=0 suspectscore=0 mlxlogscore=815 adultscore=0 bulkscore=0 priorityscore=1501 lowpriorityscore=0 malwarescore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2308100000 definitions=main-2309070052 Precedence: bulk List-ID: X-Mailing-List: linux-pm@vger.kernel.org This patch adds support for OPP to vote for the performance state of RPMH power domain based upon GEN speed it PCIe got enumerated. Before link up PCIe driver will vote for the maximum performance state. Add API dev_pm_opp_find_level_floor to find To find the highest opp for a device based on the level. Changes from v4: - Added a separate patch for returning error from the qcom_pcie_upadate and moved opp update logic to icc_update and used a bool variable to update the opp. - Addressed comments made by pavan. changes from v3: - Removing the opp vote on suspend when the link is not up and link is not up and add debug prints as suggested by pavan. - Added dev_pm_opp_find_level_floor API to find the highest opp to vote. changes from v2: - Instead of using the freq based opp search use level based as suggested by Dmitry Baryshkov. Changes from v1: - Addressed comments from Krzysztof Kozlowski. - Added the rpmhpd_opp_xxx phandle as suggested by pavan. - Added dev_pm_opp_set_opp API call which was missed on previous patch. Krishna chaitanya chundru (5): dt-bindings: pci: qcom: Add opp table arm64: dts: qcom: sm8450: Add opp table support to PCIe opp: Add dev_pm_opp_find_level_floor() PCI: qcom: Return error from 'qcom_pcie_icc_update' PCI: qcom: Add OPP support to scale performance state of power domain .../devicetree/bindings/pci/qcom,pcie.yaml | 4 ++ arch/arm64/boot/dts/qcom/sm8450.dtsi | 47 ++++++++++++++++ drivers/opp/core.c | 25 +++++++++ drivers/pci/controller/dwc/pcie-qcom.c | 63 ++++++++++++++++++---- include/linux/pm_opp.h | 9 ++++ 5 files changed, 137 insertions(+), 11 deletions(-)