From patchwork Fri Jun 30 10:52:08 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: 13297992 X-Patchwork-Delegate: kw@linux.com 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 5589DEB64DA for ; Fri, 30 Jun 2023 10:52:36 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232316AbjF3Kwe (ORCPT ); Fri, 30 Jun 2023 06:52:34 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:43634 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232298AbjF3Kwc (ORCPT ); Fri, 30 Jun 2023 06:52:32 -0400 Received: from mx0a-0031df01.pphosted.com (mx0a-0031df01.pphosted.com [205.220.168.131]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 2315635AF; Fri, 30 Jun 2023 03:52:31 -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 35U5LCB1020100; Fri, 30 Jun 2023 10:52:21 GMT DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=quicinc.com; h=from : to : cc : subject : date : message-id : in-reply-to : references; s=qcppdkim1; bh=yoqAwqb4UmnZXTKQ6pQCHhmtr5plOyugizSdTRJ3bcw=; b=LhHAsm7Upcxr88RExcv0ByJoESZ+EEzkHoerfAH+Tp9C0TxVFEBFYJpRg6kRX+63TUZh rWrt027QXCv1aJgVmkn/QyedKclZR0bB4BjWLCPtADuRlmr0vFR4Se4m9FUFCWn8S/1z ccA8WEmqjJ3vGdFF6ZkFc81RV0efcoYk078b5CfpCwLnErmRdeTSzgUVMXcUgG/ZdKFN qQ3dcuERA72NLPXXfBotSlw2xYvI072Hd7fnMlJzQuhKXr7OMo61+8OToNp4DZk/AX5p X03BTYZ4C20lYvYlwGm4eAiMMETyhYJCfe4un7poVrk4wZ45k9+Z/uiAUoWpZyi/XSW9 qA== Received: from apblrppmta02.qualcomm.com (blr-bdr-fw-01_GlobalNAT_AllZones-Outside.qualcomm.com [103.229.18.19]) by mx0a-0031df01.pphosted.com (PPS) with ESMTPS id 3rha8e2f2c-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Fri, 30 Jun 2023 10:52:20 +0000 Received: from pps.filterd (APBLRPPMTA02.qualcomm.com [127.0.0.1]) by APBLRPPMTA02.qualcomm.com (8.17.1.5/8.17.1.5) with ESMTP id 35UAqH2N004744; Fri, 30 Jun 2023 10:52:17 GMT Received: from pps.reinject (localhost [127.0.0.1]) by APBLRPPMTA02.qualcomm.com (PPS) with ESMTPS id 3rdsjkpf2f-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO); Fri, 30 Jun 2023 10:52:17 +0000 Received: from APBLRPPMTA02.qualcomm.com (APBLRPPMTA02.qualcomm.com [127.0.0.1]) by pps.reinject (8.17.1.5/8.17.1.5) with ESMTP id 35UAqHvt004730; Fri, 30 Jun 2023 10:52:17 GMT Received: from hu-sgudaval-hyd.qualcomm.com (hu-krichai-hyd.qualcomm.com [10.213.110.112]) by APBLRPPMTA02.qualcomm.com (PPS) with ESMTP id 35UAqGFG004718; Fri, 30 Jun 2023 10:52:16 +0000 Received: by hu-sgudaval-hyd.qualcomm.com (Postfix, from userid 4058933) id 38E374AC3; Fri, 30 Jun 2023 16:22:16 +0530 (+0530) From: Krishna chaitanya chundru To: manivannan.sadhasivam@linaro.org Cc: helgaas@kernel.org, linux-pci@vger.kernel.org, linux-arm-msm@vger.kernel.org, linux-kernel@vger.kernel.org, quic_vbadigan@quicinc.com, quic_nitegupt@quicinc.com, quic_skananth@quicinc.com, quic_ramkri@quicinc.com, krzysztof.kozlowski@linaro.org, Krishna chaitanya chundru , Jingoo Han , Gustavo Pimentel , Lorenzo Pieralisi , =?utf-8?q?Krzysztof_Wilczy=C5=84?= =?utf-8?q?ski?= , Rob Herring , Bjorn Helgaas Subject: [PATCH v2 5/8] pci: dwc: Add wakeup host op to pci_epc_ops Date: Fri, 30 Jun 2023 16:22:08 +0530 Message-Id: <1688122331-25478-6-git-send-email-quic_krichai@quicinc.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1688122331-25478-1-git-send-email-quic_krichai@quicinc.com> References: <1688122331-25478-1-git-send-email-quic_krichai@quicinc.com> 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-GUID: 7-MDDinAiM0VZ2_YoaxYJyrMpMhPC4z_ X-Proofpoint-ORIG-GUID: 7-MDDinAiM0VZ2_YoaxYJyrMpMhPC4z_ X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.254,Aquarius:18.0.957,Hydra:6.0.591,FMLib:17.11.176.26 definitions=2023-06-30_05,2023-06-30_01,2023-05-22_02 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 bulkscore=0 phishscore=0 mlxlogscore=711 clxscore=1011 impostorscore=0 priorityscore=1501 spamscore=0 mlxscore=0 malwarescore=0 suspectscore=0 adultscore=0 lowpriorityscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2305260000 definitions=main-2306300092 Precedence: bulk List-ID: X-Mailing-List: linux-pci@vger.kernel.org Add wakeup host op to wake up host from D3cold or D3hot. Signed-off-by: Krishna chaitanya chundru --- drivers/pci/controller/dwc/pcie-designware-ep.c | 12 ++++++++++++ drivers/pci/controller/dwc/pcie-designware.h | 3 +++ 2 files changed, 15 insertions(+) diff --git a/drivers/pci/controller/dwc/pcie-designware-ep.c b/drivers/pci/controller/dwc/pcie-designware-ep.c index f9182f8..7474849 100644 --- a/drivers/pci/controller/dwc/pcie-designware-ep.c +++ b/drivers/pci/controller/dwc/pcie-designware-ep.c @@ -463,6 +463,17 @@ dw_pcie_ep_get_features(struct pci_epc *epc, u8 func_no, u8 vfunc_no) return ep->ops->get_features(ep); } +static int dw_pcie_ep_wakeup_host(struct pci_epc *epc, u8 func_no, u8 vfunc_no, + enum pci_epc_wakeup_host_type type) +{ + struct dw_pcie_ep *ep = epc_get_drvdata(epc); + + if (!ep->ops->wakeup_host) + return -EINVAL; + + return ep->ops->wakeup_host(ep, func_no, type); +} + static const struct pci_epc_ops epc_ops = { .write_header = dw_pcie_ep_write_header, .set_bar = dw_pcie_ep_set_bar, @@ -477,6 +488,7 @@ static const struct pci_epc_ops epc_ops = { .start = dw_pcie_ep_start, .stop = dw_pcie_ep_stop, .get_features = dw_pcie_ep_get_features, + .wakeup_host = dw_pcie_ep_wakeup_host, }; int dw_pcie_ep_raise_legacy_irq(struct dw_pcie_ep *ep, u8 func_no) diff --git a/drivers/pci/controller/dwc/pcie-designware.h b/drivers/pci/controller/dwc/pcie-designware.h index 6156606..79df866 100644 --- a/drivers/pci/controller/dwc/pcie-designware.h +++ b/drivers/pci/controller/dwc/pcie-designware.h @@ -330,6 +330,9 @@ struct dw_pcie_ep_ops { * driver. */ unsigned int (*func_conf_select)(struct dw_pcie_ep *ep, u8 func_no); + + int (*wakeup_host)(struct dw_pcie_ep *ep, u8 func_no, + enum pci_epc_wakeup_host_type type); }; struct dw_pcie_ep_func {