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Fri, 07 Jul 2023 11:04:30 +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 367B40F0022731; Fri, 7 Jul 2023 11:04:02 GMT Received: from pps.reinject (localhost [127.0.0.1]) by APBLRPPMTA02.qualcomm.com (PPS) with ESMTPS id 3rjd7kq58x-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO); Fri, 07 Jul 2023 11:04:02 +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 367B42LP022771; Fri, 7 Jul 2023 11:04:02 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 367B41A3022769; Fri, 07 Jul 2023 11:04:02 +0000 Received: by hu-sgudaval-hyd.qualcomm.com (Postfix, from userid 4058933) id 69AB946E0; Fri, 7 Jul 2023 16:34:01 +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 , Manivannan Sadhasivam , Lorenzo Pieralisi , =?utf-8?q?Krzysztof_Wilczy=C5=84?= =?utf-8?q?ski?= , Kishon Vijay Abraham I , Bjorn Helgaas , Jeffrey Hugo , mhi@lists.linux.dev (open list:MHI BUS) Subject: [PATCH v3 4/9] PCI: epf-mhi: Add support for handling D-state notify from EPC Date: Fri, 7 Jul 2023 16:33:51 +0530 Message-Id: <1688727836-11141-5-git-send-email-quic_krichai@quicinc.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1688727836-11141-1-git-send-email-quic_krichai@quicinc.com> References: <1688727836-11141-1-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-ORIG-GUID: dM2gPJm6J2XJxH530ruQ9I_LXzf6Ci5T X-Proofpoint-GUID: dM2gPJm6J2XJxH530ruQ9I_LXzf6Ci5T 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=2023-07-07_07,2023-07-06_02,2023-05-22_02 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 malwarescore=0 mlxlogscore=774 phishscore=0 mlxscore=0 priorityscore=1501 lowpriorityscore=0 bulkscore=0 impostorscore=0 clxscore=1015 suspectscore=0 adultscore=0 spamscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2305260000 definitions=main-2307070103 X-Spam-Status: No, score=-2.5 required=5.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, RCVD_IN_DNSWL_LOW,SPF_HELO_NONE,SPF_NONE,T_SCC_BODY_TEXT_LINE, URIBL_BLOCKED autolearn=ham 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: =?utf-8?q?INBOX?= X-GMAIL-THRID: =?utf-8?q?1770760843700790143?= X-GMAIL-MSGID: =?utf-8?q?1770760843700790143?= Add support for handling D-state notify for MHI EPF. Signed-off-by: Krishna chaitanya chundru --- drivers/pci/endpoint/functions/pci-epf-mhi.c | 11 +++++++++++ include/linux/mhi_ep.h | 3 +++ 2 files changed, 14 insertions(+) diff --git a/drivers/pci/endpoint/functions/pci-epf-mhi.c b/drivers/pci/endpoint/functions/pci-epf-mhi.c index 9c1f5a1..631eb2f7 100644 --- a/drivers/pci/endpoint/functions/pci-epf-mhi.c +++ b/drivers/pci/endpoint/functions/pci-epf-mhi.c @@ -339,6 +339,16 @@ static int pci_epf_mhi_bme(struct pci_epf *epf) return 0; } +static int pci_epf_mhi_dstate_notify(struct pci_epf *epf, pci_power_t state) +{ + struct pci_epf_mhi *epf_mhi = epf_get_drvdata(epf); + struct mhi_ep_cntrl *mhi_cntrl = &epf_mhi->mhi_cntrl; + + mhi_cntrl->dstate = state; + + return 0; +} + static int pci_epf_mhi_bind(struct pci_epf *epf) { struct pci_epf_mhi *epf_mhi = epf_get_drvdata(epf); @@ -394,6 +404,7 @@ static struct pci_epc_event_ops pci_epf_mhi_event_ops = { .link_up = pci_epf_mhi_link_up, .link_down = pci_epf_mhi_link_down, .bme = pci_epf_mhi_bme, + .dstate_notify = pci_epf_mhi_dstate_notify, }; static int pci_epf_mhi_probe(struct pci_epf *epf, diff --git a/include/linux/mhi_ep.h b/include/linux/mhi_ep.h index f198a8a..c3a0685 100644 --- a/include/linux/mhi_ep.h +++ b/include/linux/mhi_ep.h @@ -8,6 +8,7 @@ #include #include +#include #define MHI_EP_DEFAULT_MTU 0x8000 @@ -139,6 +140,8 @@ struct mhi_ep_cntrl { enum mhi_state mhi_state; + pci_power_t dstate; + u32 max_chan; u32 mru; u32 event_rings;