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Mon, 27 Nov 2023 05:36:12 +0000 Received: from pps.filterd (APTAIPPMTA02.qualcomm.com [127.0.0.1]) by APTAIPPMTA02.qualcomm.com (8.17.1.5/8.17.1.5) with ESMTP id 3AR5a9FB023415; Mon, 27 Nov 2023 05:36:09 GMT Received: from pps.reinject (localhost [127.0.0.1]) by APTAIPPMTA02.qualcomm.com (PPS) with ESMTP id 3uka0k9hyh-1; Mon, 27 Nov 2023 05:36:09 +0000 Received: from APTAIPPMTA02.qualcomm.com (APTAIPPMTA02.qualcomm.com [127.0.0.1]) by pps.reinject (8.17.1.5/8.17.1.5) with ESMTP id 3AR5a9aT023409; Mon, 27 Nov 2023 05:36:09 GMT Received: from cbsp-sh-gv.qualcomm.com (CBSP-SH-gv.ap.qualcomm.com [10.231.249.68]) by APTAIPPMTA02.qualcomm.com (PPS) with ESMTP id 3AR5a8Hq023405; Mon, 27 Nov 2023 05:36:09 +0000 Received: by cbsp-sh-gv.qualcomm.com (Postfix, from userid 393357) id 28F26552F; Mon, 27 Nov 2023 13:36:08 +0800 (CST) From: Ziqi Chen To: quic_asutoshd@quicinc.com, quic_cang@quicinc.com, bvanassche@acm.org, mani@kernel.org, stanley.chu@mediatek.com, adrian.hunter@intel.com, beanhuo@micron.com, avri.altman@wdc.com, junwoo80.lee@samsung.com, martin.petersen@oracle.com, quic_ziqichen@quicinc.com, quic_nguyenb@quicinc.com, quic_nitirawa@quicinc.com Cc: linux-scsi@vger.kernel.org, Alim Akhtar , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Miquel Raynal , Linus Walleij , Wolfram Sang , devicetree@vger.kernel.org (open list:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS), linux-kernel@vger.kernel.org (open list) Subject: [PATCH v3] dt-bindings: ufs: Add msi-parent for UFS MCQ Date: Mon, 27 Nov 2023 13:36:02 +0800 Message-Id: <1701063365-82582-1-git-send-email-quic_ziqichen@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: gNL2OK04Xe0OSooPseeNyimQDizKgmP3 X-Proofpoint-GUID: gNL2OK04Xe0OSooPseeNyimQDizKgmP3 X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.272,Aquarius:18.0.987,Hydra:6.0.619,FMLib:17.11.176.26 definitions=2023-11-27_03,2023-11-22_01,2023-05-22_02 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 priorityscore=1501 phishscore=0 mlxlogscore=949 suspectscore=0 lowpriorityscore=0 clxscore=1011 mlxscore=0 bulkscore=0 spamscore=0 adultscore=0 malwarescore=0 impostorscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2311060000 definitions=main-2311270038 X-Spam-Status: No, score=-0.9 required=5.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI, SPF_HELO_NONE,SPF_PASS,T_SCC_BODY_TEXT_LINE autolearn=unavailable autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on morse.vger.email Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org X-Greylist: Sender passed SPF test, not delayed by milter-greylist-4.6.4 (morse.vger.email [0.0.0.0]); Sun, 26 Nov 2023 21:38:13 -0800 (PST) The Message Signaled Interrupts (MSI) support has been introduced in UFSHCI version 4.0 (JESD223E). The MSI is the recommended interrupt approach for MCQ. If choose to use MSI, In UFS DT, we need to provide msi-parent property that point to the hardware entity which serves as the MSI controller for this UFS controller. Signed-off-by: Ziqi Chen V2 -> V3: Wrap commit message to meet Linux coding style. V1 -> V2: Rebased on Linux 6.7-rc1 and updated the commit message to incorporate the details about when MCQ/MSI got introduced. --- Documentation/devicetree/bindings/ufs/ufs-common.yaml | 2 ++ 1 file changed, 2 insertions(+) diff --git a/Documentation/devicetree/bindings/ufs/ufs-common.yaml b/Documentation/devicetree/bindings/ufs/ufs-common.yaml index 985ea8f..31fe7f3 100644 --- a/Documentation/devicetree/bindings/ufs/ufs-common.yaml +++ b/Documentation/devicetree/bindings/ufs/ufs-common.yaml @@ -87,6 +87,8 @@ properties: description: Specifies max. load that can be drawn from VCCQ2 supply. + msi-parent: true + dependencies: freq-table-hz: [ clocks ] operating-points-v2: [ clocks, clock-names ] -- 2.7.4