From patchwork Fri Sep 8 06:53:34 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: 720883 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 E65D4EE57CA for ; Fri, 8 Sep 2023 06:54:09 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S241639AbjIHGyM (ORCPT ); Fri, 8 Sep 2023 02:54:12 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:45978 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S233657AbjIHGyL (ORCPT ); Fri, 8 Sep 2023 02:54:11 -0400 Received: from mx0b-0031df01.pphosted.com (mx0b-0031df01.pphosted.com [205.220.180.131]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 94E7F19AE; Thu, 7 Sep 2023 23:54:07 -0700 (PDT) Received: from pps.filterd (m0279868.ppops.net [127.0.0.1]) by mx0a-0031df01.pphosted.com (8.17.1.19/8.17.1.19) with ESMTP id 3885UNQM029550; Fri, 8 Sep 2023 06:53:57 GMT DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=quicinc.com; h=from : subject : date : message-id : mime-version : content-type : content-transfer-encoding : to : cc; s=qcppdkim1; bh=WtSrmTvqvjuRg3aiOd2xtgKf2FBA3IbNf1R2PJblSPs=; b=QC5oHhHUODlkGOU8YbHdWCMxaQnQDEge6LrKPqr8LTo+D1lQQUpUDnldJ/qfcvqhN3qa 5Z0Dd8j/Da/oF3jyKqkrg5cZ6QJhlwNSICnZpxbNd/AW/m/7LZFVcXyXHwo+avQXWBu/ orcOmJM8r6Z3BXi/mP154pP2KUVNO56FxFcpu81qFOoySnZ6b0h1XgjNZKhA6i1vovOm iR882+iGw7bFO/zyL12pqv41crVjZKS0uQbBP1Y/FSgnS9/UKjgmVgQJP8nOMfPeGSfU TTODqmjuqmbXmZR8UnoSk9VWRk8kkbowg9lpku2CBrtedIGYnPt5pAaviCiZPD+ysiPb BA== Received: from nalasppmta02.qualcomm.com (Global_NAT1.qualcomm.com [129.46.96.20]) by mx0a-0031df01.pphosted.com (PPS) with ESMTPS id 3syk9ns8ct-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Fri, 08 Sep 2023 06:53:57 +0000 Received: from nalasex01a.na.qualcomm.com (nalasex01a.na.qualcomm.com [10.47.209.196]) by NALASPPMTA02.qualcomm.com (8.17.1.5/8.17.1.5) with ESMTPS id 3886rut6025697 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Fri, 8 Sep 2023 06:53:56 GMT Received: from hu-krichai-hyd.qualcomm.com (10.80.80.8) by nalasex01a.na.qualcomm.com (10.47.209.196) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.1118.36; Thu, 7 Sep 2023 23:53:52 -0700 From: Krishna chaitanya chundru Subject: [PATCH v6 0/4] PCI: endpoint: add D-state change notifier support Date: Fri, 8 Sep 2023 12:23:34 +0530 Message-ID: <20230908-dstate_change-v6-0-b414a6edd765@quicinc.com> MIME-Version: 1.0 X-B4-Tracking: v=1; b=H4sIAO7E+mQC/6tWKk4tykwtVrJSqFYqSi3LLM7MzwNyzHQUlJIzE vPSU3UzU4B8JSMDI2MDSwNz3ZTiksSS1HioZJJRalKiRVJqormhhRJQT0FRalpmBdi86NjaWgC xUVzSXwAAAA== To: Lorenzo Pieralisi , =?utf-8?q?Krzysztof_Wilczy?= =?utf-8?q?=C5=84ski?= , Manivannan Sadhasivam , Kishon Vijay Abraham I , Bjorn Helgaas , Jonathan Corbet , Rob Herring CC: , , , , , Krishna chaitanya chundru X-Mailer: b4 0.13-dev-83828 X-Developer-Signature: v=1; a=ed25519-sha256; t=1694156032; l=1570; i=quic_krichai@quicinc.com; s=20230907; h=from:subject:message-id; bh=Tmd0F65PbOPi6tmLoLbCsSjBMitm8wXzFUFJFAC+pNE=; b=HUbCGyawxgPi6wGvIbH7ojs/F+yMqJEuvP4YMjScs2oQrWZ7alCs3/Fd2R5ZKBnewxHSSQk5U INyBomSfpPaCrK90wyGPHxpDFWW24O6xGLMibBMqAuJZHibChSCyk+A X-Developer-Key: i=quic_krichai@quicinc.com; a=ed25519; pk=10CL2pdAKFyzyOHbfSWHCD0X0my7CXxj8gJScmn1FAg= X-Originating-IP: [10.80.80.8] X-ClientProxiedBy: nasanex01b.na.qualcomm.com (10.46.141.250) To nalasex01a.na.qualcomm.com (10.47.209.196) X-QCInternal: smtphost X-Proofpoint-Virus-Version: vendor=nai engine=6200 definitions=5800 signatures=585085 X-Proofpoint-ORIG-GUID: h1n0wqdDprzOxmosZeX2pWwV4ULx__jn X-Proofpoint-GUID: h1n0wqdDprzOxmosZeX2pWwV4ULx__jn 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=2023-09-08_03,2023-09-05_01,2023-05-22_02 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 lowpriorityscore=0 malwarescore=0 bulkscore=0 impostorscore=0 phishscore=0 clxscore=1011 suspectscore=0 mlxlogscore=717 mlxscore=0 priorityscore=1501 adultscore=0 spamscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2308100000 definitions=main-2309080062 Precedence: bulk List-ID: X-Mailing-List: linux-arm-msm@vger.kernel.org In this series we added support to nofity the EPF driver whenever there is change in the D-state if the EPF driver registered for it. This series needed by the following series for epf driver to know whether link is in D3Cold or D3hot to wake the host ('PCI: EPC: Add support to wake up host from D3 states') https://lore.kernel.org/linux-pci/1690952359-8625-4-git-send-email-quic_krichai@quicinc.com/T/ Changes from v5: - Fixed compilation errors & removed checks in the dstate_notify() function as suggested by bjorn. Signed-off-by: Krishna chaitanya chundru --- Krishna chaitanya chundru (4): PCI: endpoint: Add D-state change notifier support PCI: qcom-ep: Add support for D-state change notification PCI: qcom-ep: Print D-state name to distinguish D3hot/D3cold PCI: epf-mhi: Add support for handling D-state notify from EPC Documentation/PCI/endpoint/pci-endpoint.rst | 4 ++++ drivers/pci/controller/dwc/pcie-qcom-ep.c | 10 ++++++++-- drivers/pci/endpoint/functions/pci-epf-mhi.c | 11 +++++++++++ drivers/pci/endpoint/pci-epc-core.c | 24 ++++++++++++++++++++++++ include/linux/mhi_ep.h | 3 +++ include/linux/pci-epc.h | 1 + include/linux/pci-epf.h | 2 ++ 7 files changed, 53 insertions(+), 2 deletions(-) --- base-commit: cd76a0897a67d2e70effd0f5d411792e2d6896c6 change-id: 20230907-dstate_change-b2eba8bea718 Best regards,