From patchwork Tue Nov 28 04:07:47 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Ziqi Chen X-Patchwork-Id: 13470492 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=quicinc.com header.i=@quicinc.com header.b="V8/m46iq" Received: from mx0b-0031df01.pphosted.com (mx0b-0031df01.pphosted.com [205.220.180.131]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id DEF47C1; Mon, 27 Nov 2023 20:08:32 -0800 (PST) Received: from pps.filterd (m0279869.ppops.net [127.0.0.1]) by mx0a-0031df01.pphosted.com (8.17.1.19/8.17.1.19) with ESMTP id 3AS3Tqan029324; Tue, 28 Nov 2023 04:07:57 GMT DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=quicinc.com; h=from : to : cc : subject : date : message-id; s=qcppdkim1; bh=qUwNKjV6vBhluDMosGG/8iehvGvwRyNVKPeilLEK/9k=; b=V8/m46iqlUfIOanMV6EWFJynpU3Ug8Cnvbc0t1YzoohTzqQCLM5eq90vv0PyDyPv+i2z 3UOpsO9S8FG05BPmW8y1CVJ/5xb+c7Fn8AmYEj3ojekH2d0XZlYDBXloEiwtsPZW1KWS LubXJqx2OGXDvAzv1vzTNXvpAs8+QuF5uF6WVLoLMLsa9ZMM6tyr/DXtwcwVEbkxcgF4 jiA7f132nMmxqiDGnrHP/ZuVOsVUTNj+s9I9DuvA4O+9kihEnLIhCnxu5xGc4tvh1lCn SojXYhah23IhS0XhlbKAzfidkmr6qrOiiMsyYyi3s3YtnUxI3AAbj4dzfi0ddsLrTd8d Gw== Received: from aptaippmta01.qualcomm.com (tpe-colo-wan-fw-bordernet.qualcomm.com [103.229.16.4]) by mx0a-0031df01.pphosted.com (PPS) with ESMTPS id 3un586rdff-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Tue, 28 Nov 2023 04:07:57 +0000 Received: from pps.filterd (APTAIPPMTA01.qualcomm.com [127.0.0.1]) by APTAIPPMTA01.qualcomm.com (8.17.1.5/8.17.1.5) with ESMTP id 3AS47swO026209; Tue, 28 Nov 2023 04:07:54 GMT Received: from pps.reinject (localhost [127.0.0.1]) by APTAIPPMTA01.qualcomm.com (PPS) with ESMTP id 3uka0ke4d8-1; Tue, 28 Nov 2023 04:07:54 +0000 Received: from APTAIPPMTA01.qualcomm.com (APTAIPPMTA01.qualcomm.com [127.0.0.1]) by pps.reinject (8.17.1.5/8.17.1.5) with ESMTP id 3AS47sEW026149; Tue, 28 Nov 2023 04:07:54 GMT Received: from cbsp-sh-gv.qualcomm.com (CBSP-SH-gv.ap.qualcomm.com [10.231.249.68]) by APTAIPPMTA01.qualcomm.com (PPS) with ESMTP id 3AS47rW9026147; Tue, 28 Nov 2023 04:07:54 +0000 Received: by cbsp-sh-gv.qualcomm.com (Postfix, from userid 393357) id D54EA5535; Tue, 28 Nov 2023 12:07:52 +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 , Geert Uytterhoeven , Sudeep Holla , devicetree@vger.kernel.org (open list:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS), linux-kernel@vger.kernel.org (open list) Subject: [PATCH v4] dt-bindings: ufs: Add msi-parent for UFS MCQ Date: Tue, 28 Nov 2023 12:07:47 +0800 Message-Id: <1701144469-1018-1-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: jQe91lEE1mZXUhaeS7LmGUao8ukLbf-b X-Proofpoint-GUID: jQe91lEE1mZXUhaeS7LmGUao8ukLbf-b 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=2023-11-28_02,2023-11-27_01,2023-05-22_02 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 malwarescore=0 mlxlogscore=888 priorityscore=1501 spamscore=0 impostorscore=0 adultscore=0 mlxscore=0 phishscore=0 suspectscore=0 clxscore=1011 bulkscore=0 lowpriorityscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2311060000 definitions=main-2311280031 Precedence: bulk X-Mailing-List: linux-scsi@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: 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. Acked-by: Krzysztof Kozlowski Acked-by: Conor Dooley Signed-off-by: Ziqi Chen Reviewed-by: Manivannan Sadhasivam --- V3 -> V4: Corrected version change format. 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 ]