From patchwork Fri Mar 24 06:16:07 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Hao Zhang X-Patchwork-Id: 666615 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 BFB3BC77B61 for ; Fri, 24 Mar 2023 06:17:33 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231783AbjCXGRc (ORCPT ); Fri, 24 Mar 2023 02:17:32 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:46816 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231730AbjCXGRZ (ORCPT ); Fri, 24 Mar 2023 02:17:25 -0400 Received: from mx0b-0031df01.pphosted.com (mx0b-0031df01.pphosted.com [205.220.180.131]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id B3E0628D13; Thu, 23 Mar 2023 23:17:15 -0700 (PDT) Received: from pps.filterd (m0279870.ppops.net [127.0.0.1]) by mx0a-0031df01.pphosted.com (8.17.1.19/8.17.1.19) with ESMTP id 32O67WBc007905; Fri, 24 Mar 2023 06:16:44 GMT DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=quicinc.com; h=from : to : cc : subject : date : message-id : in-reply-to : references : mime-version : content-type; s=qcppdkim1; bh=8C7m0DbmmsxTJEi0AOtc7YtdKD+by2Z8hHftvMur6WQ=; b=Iw+PlfozyhJAxIieloK9XhlxD98TU5UgUX426oKHZXztri8CEQlG7Sap4soK4vzv85CK l+PzUg7CAlb45YUxXPKcXqzmui9yaHHCUWh/mC4ex6vrsTBjCVTdT7SCvV4xtMeNTNAO OgS//hVHvyUhbfTPneiesskRsX1f320sBu5LXwrlKLNuJkfFzFtSgiU0YPDkK/6f6KdB 9vDiF8nJZ/BGCCJOaVgDenlDu4Zm5xFfUXXe4kw7x6+eKX21L/BznIBoHiwpm2dtnOeS d43/RRVEq5WAtQivZL4MA2MkDZFk8Ic7MBcj9pZ/fZ7oQHUabhWirYfSF9OmPGkfRaqD rA== Received: from nasanppmta02.qualcomm.com (i-global254.qualcomm.com [199.106.103.254]) by mx0a-0031df01.pphosted.com (PPS) with ESMTPS id 3pgxr88xgm-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Fri, 24 Mar 2023 06:16:44 +0000 Received: from nasanex01a.na.qualcomm.com (nasanex01a.na.qualcomm.com [10.52.223.231]) by NASANPPMTA02.qualcomm.com (8.17.1.5/8.17.1.5) with ESMTPS id 32O6Ghd8014332 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Fri, 24 Mar 2023 06:16:43 GMT Received: from hazha-gv.qualcomm.com (10.80.80.8) by nasanex01a.na.qualcomm.com (10.52.223.231) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.986.41; Thu, 23 Mar 2023 23:16:37 -0700 From: Hao Zhang To: Mathieu Poirier , Suzuki K Poulose , Alexander Shishkin , Konrad Dybcio , Mike Leach , Rob Herring , Krzysztof Kozlowski , Andy Gross , Paul Walmsley , Palmer Dabbelt , Albert Ou , Jonathan Corbet CC: Hao Zhang , Leo Yan , "Greg Kroah-Hartman" , , , , , Tingwei Zhang , Jinlong Mao , Yuanfang Zhang , Tao Zhang , Trilok Soni , , Bjorn Andersson , Subject: [PATCH v2 2/3] dt-bindings: arm: Add Coresight Dummy Trace YAML schema Date: Fri, 24 Mar 2023 14:16:07 +0800 Message-ID: <20230324061608.33609-3-quic_hazha@quicinc.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20230324061608.33609-1-quic_hazha@quicinc.com> References: <20230324061608.33609-1-quic_hazha@quicinc.com> MIME-Version: 1.0 X-Originating-IP: [10.80.80.8] X-ClientProxiedBy: nasanex01a.na.qualcomm.com (10.52.223.231) To nasanex01a.na.qualcomm.com (10.52.223.231) X-QCInternal: smtphost X-Proofpoint-Virus-Version: vendor=nai engine=6200 definitions=5800 signatures=585085 X-Proofpoint-ORIG-GUID: ZGqvjWdMDlUYIH5wn6TjMe-O5zpRAiM2 X-Proofpoint-GUID: ZGqvjWdMDlUYIH5wn6TjMe-O5zpRAiM2 X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.254,Aquarius:18.0.942,Hydra:6.0.573,FMLib:17.11.170.22 definitions=2023-03-24_02,2023-03-23_02,2023-02-09_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 clxscore=1015 mlxscore=0 adultscore=0 impostorscore=0 spamscore=0 bulkscore=0 lowpriorityscore=0 phishscore=0 priorityscore=1501 suspectscore=0 malwarescore=0 mlxlogscore=999 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2303200000 definitions=main-2303240049 Precedence: bulk List-ID: X-Mailing-List: linux-arm-msm@vger.kernel.org Add new coresight-dummy.yaml file describing the bindings required to define coresight dummy trace in the device trees. Signed-off-by: Hao Zhang --- .../bindings/arm/qcom,coresight-dummy.yaml | 118 ++++++++++++++++++ 1 file changed, 118 insertions(+) create mode 100644 Documentation/devicetree/bindings/arm/qcom,coresight-dummy.yaml diff --git a/Documentation/devicetree/bindings/arm/qcom,coresight-dummy.yaml b/Documentation/devicetree/bindings/arm/qcom,coresight-dummy.yaml new file mode 100644 index 000000000000..7b719b084d72 --- /dev/null +++ b/Documentation/devicetree/bindings/arm/qcom,coresight-dummy.yaml @@ -0,0 +1,118 @@ +# SPDX-License-Identifier: GPL-2.0-only or BSD-2-Clause +# Copyright (c) 2023 Qualcomm Innovation Center, Inc. All rights reserved. +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/arm/qcom,coresight-dummy.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: QCOM Coresight Dummy component + +description: | + The Coresight Dummy component is for the specific devices that HLOS don't have + permission to access or configure. Such as Coresight sink EUD, some TPDMs etc. + So there need driver to register dummy devices as Coresight devices. Provide + Coresight API for dummy device operations, such as enabling and disabling + dummy devices. Build the Coresight path for dummy sink or dummy source for + debugging. + + The primary use case of the coresight dummy is to build path for dummy sink or + dummy source. + +maintainers: + - Mao Jinlong + - Tao Zhang + - Hao Zhang + +select: + properties: + compatible: + contains: + enum: + - qcom,coresight-dummy + required: + - compatible + +properties: + $nodename: + pattern: "^dummy_.*(sink|source)_[0-9]+.*$" + compatible: + items: + - const: qcom,coresight-dummy + + qcom,dummy-sink: + type: boolean + description: + Indicates that the type of this coresight node is dummy sink. + + qcom,dummy-source: + type: boolean + description: + Indicates that the type of this coresight node is dummy source. + + out-ports: + description: | + Output connections from the dummy source to Coresight Trace bus. + $ref: /schemas/graph.yaml#/properties/ports + + properties: + port: + description: Output connection from the dummy source to Coresight + Trace bus. + $ref: /schemas/graph.yaml#/properties/port + + in-ports: + description: | + Input connections from the CoreSight Trace bus to dummy sink. + $ref: /schemas/graph.yaml#/properties/ports + + properties: + port: + description: Input connection from the Coresight Trace bus to + dummy sink. + $ref: /schemas/graph.yaml#/properties/port + +required: + - compatible + +additionalProperties: false + +oneOf: + - required: + - qcom,dummy-sink + - required: + - qcom,dummy-source + +examples: + # minimum dummy sink definition. dummy sink connect to coresight replicator. + - | + dummy_sink_1 { + compatible = "qcom,coresight-dummy"; + qcom,dummy-sink; + + in-ports { + port { + eud_in_replicator_swao: endpoint { + remote-endpoint = + <&replicator_swao_out_eud>; + }; + }; + }; + }; + + # minimum dummy source definition. dummy source connect to coresight funnel. + - | + dummy_source_1 { + compatible = "qcom,coresight-dummy"; + qcom,dummy-source; + + out-ports { + port { + dummy_riscv_out_funnel_swao: endpoint { + remote-endpoint = + <&funnel_swao_in_dummy_riscv>; + }; + }; + }; + }; + +...