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Tue, 2 Jan 2024 21:46:22 GMT Received: from hu-wcheng-lv.qualcomm.com (10.49.16.6) by nalasex01b.na.qualcomm.com (10.47.209.197) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.1118.40; Tue, 2 Jan 2024 13:46:21 -0800 From: Wesley Cheng To: , , , , , , , , , , , , , , , CC: , , , , , , , Wesley Cheng Subject: [PATCH v12 15/41] dt-bindings: usb: dwc3: Limit num-hc-interrupters definition Date: Tue, 2 Jan 2024 13:45:23 -0800 Message-ID: <20240102214549.22498-16-quic_wcheng@quicinc.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20240102214549.22498-1-quic_wcheng@quicinc.com> References: <20240102214549.22498-1-quic_wcheng@quicinc.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-ClientProxiedBy: nalasex01c.na.qualcomm.com (10.47.97.35) To nalasex01b.na.qualcomm.com (10.47.209.197) X-QCInternal: smtphost X-Proofpoint-Virus-Version: vendor=nai engine=6200 definitions=5800 signatures=585085 X-Proofpoint-ORIG-GUID: CibZWTv1HQYBf2FdoWDRpd2edbKbVa_H X-Proofpoint-GUID: CibZWTv1HQYBf2FdoWDRpd2edbKbVa_H X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.272,Aquarius:18.0.997,Hydra:6.0.619,FMLib:17.11.176.26 definitions=2023-12-09_02,2023-12-07_01,2023-05-22_02 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 priorityscore=1501 phishscore=0 mlxlogscore=753 mlxscore=0 bulkscore=0 impostorscore=0 suspectscore=0 clxscore=1015 malwarescore=0 spamscore=0 lowpriorityscore=0 adultscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.19.0-2311290000 definitions=main-2401020161 X-getmail-retrieved-from-mailbox: INBOX X-GMAIL-THRID: 1787017391288182285 X-GMAIL-MSGID: 1787017391288182285 Ensure that the number of XHCI secondary interrupters defined for a DWC3 based implementation is limited to 8. XHCI in general can potentially support up to 1024 interrupters. Reviewed-by: Rob Herring Signed-off-by: Wesley Cheng --- Documentation/devicetree/bindings/usb/snps,dwc3.yaml | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/Documentation/devicetree/bindings/usb/snps,dwc3.yaml b/Documentation/devicetree/bindings/usb/snps,dwc3.yaml index ee5af4b381b1..203a1eb66691 100644 --- a/Documentation/devicetree/bindings/usb/snps,dwc3.yaml +++ b/Documentation/devicetree/bindings/usb/snps,dwc3.yaml @@ -432,6 +432,10 @@ properties: items: enum: [1, 4, 8, 16, 32, 64, 128, 256] + num-hc-interrupters: + maximum: 8 + default: 1 + port: $ref: /schemas/graph.yaml#/properties/port description: