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Wed, 02 Aug 2023 04:59:31 +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 3724xRiD022303; Wed, 2 Aug 2023 04:59:27 GMT Received: from pps.reinject (localhost [127.0.0.1]) by APBLRPPMTA02.qualcomm.com (PPS) with ESMTPS id 3s4uukd91u-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO); Wed, 02 Aug 2023 04:59:27 +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 3724xQud022283; Wed, 2 Aug 2023 04:59:26 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 3724xQxt022280; Wed, 02 Aug 2023 04:59:26 +0000 Received: by hu-sgudaval-hyd.qualcomm.com (Postfix, from userid 4058933) id D9C4E4B5F; Wed, 2 Aug 2023 10:29:25 +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, quic_parass@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 v5 2/5] PCI: dwc: Add wakeup host op to pci_epc_ops Date: Wed, 2 Aug 2023 10:29:16 +0530 Message-Id: <1690952359-8625-3-git-send-email-quic_krichai@quicinc.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1690952359-8625-1-git-send-email-quic_krichai@quicinc.com> References: <1690952359-8625-1-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: feycgqgB72pj-HQrac95SQL0Uq5jWAX1 X-Proofpoint-ORIG-GUID: feycgqgB72pj-HQrac95SQL0Uq5jWAX1 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=2023-08-02_02,2023-08-01_01,2023-05-22_02 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 mlxlogscore=724 adultscore=0 phishscore=0 spamscore=0 lowpriorityscore=0 impostorscore=0 mlxscore=0 priorityscore=1501 malwarescore=0 bulkscore=0 clxscore=1011 suspectscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2306200000 definitions=main-2308020044 X-Spam-Status: No, score=-1.8 required=5.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, RCVD_IN_DNSWL_BLOCKED,SPF_HELO_NONE,SPF_NONE,T_SCC_BODY_TEXT_LINE, URIBL_BLOCKED autolearn=no autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org X-getmail-retrieved-from-mailbox: INBOX X-GMAIL-THRID: 1773098888734570749 X-GMAIL-MSGID: 1773098888734570749 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 | 2 ++ 2 files changed, 14 insertions(+) diff --git a/drivers/pci/controller/dwc/pcie-designware-ep.c b/drivers/pci/controller/dwc/pcie-designware-ep.c index f9182f8..e2733a4 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 bool dw_pcie_ep_wakeup_host(struct pci_epc *epc, u8 func_no, u8 vfunc_no, + bool send_pme) +{ + struct dw_pcie_ep *ep = epc_get_drvdata(epc); + + if (!ep->ops->wakeup_host) + return false; + + return ep->ops->wakeup_host(ep, func_no, send_pme); +} + 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..fc47e74 100644 --- a/drivers/pci/controller/dwc/pcie-designware.h +++ b/drivers/pci/controller/dwc/pcie-designware.h @@ -330,6 +330,8 @@ struct dw_pcie_ep_ops { * driver. */ unsigned int (*func_conf_select)(struct dw_pcie_ep *ep, u8 func_no); + + bool (*wakeup_host)(struct dw_pcie_ep *ep, u8 func_no, bool send_pme); }; struct dw_pcie_ep_func {