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Message-ID: <20230526153508.6208-4-quic_jinlmao@quicinc.com>
Date:   Fri, 26 May 2023 23:35:08 +0800
From:   Mao Jinlong <quic_jinlmao@...cinc.com>
To:     Andy Gross <agross@...nel.org>,
        Bjorn Andersson <andersson@...nel.org>,
        Konrad Dybcio <konrad.dybcio@...aro.org>,
        Suzuki K Poulose <suzuki.poulose@....com>,
        Mike Leach <mike.leach@...aro.org>,
        Leo Yan <leo.yan@...aro.org>, Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>
CC:     Mao Jinlong <quic_jinlmao@...cinc.com>,
        <coresight@...ts.linaro.org>,
        <linux-arm-kernel@...ts.infradead.org>,
        <linux-kernel@...r.kernel.org>, <linux-arm-msm@...r.kernel.org>,
        <devicetree@...r.kernel.org>,
        Tingwei Zhang <quic_tingweiz@...cinc.com>,
        Yuanfang Zhang <quic_yuanfang@...cinc.com>,
        "Tao Zhang" <quic_taozha@...cinc.com>,
        Hao Zhang <quic_hazha@...cinc.com>
Subject: [PATCH v1 3/3] dt-bindings: arm: Adds CoreSight CSR hardware definitions

Adds new coresight-csr.yaml file describing the bindings required
to define csr in the device trees.

Signed-off-by: Mao Jinlong <quic_jinlmao@...cinc.com>
---
 .../bindings/arm/qcom,coresight-csr.yaml      | 62 +++++++++++++++++++
 1 file changed, 62 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/arm/qcom,coresight-csr.yaml

diff --git a/Documentation/devicetree/bindings/arm/qcom,coresight-csr.yaml b/Documentation/devicetree/bindings/arm/qcom,coresight-csr.yaml
new file mode 100644
index 000000000000..a79b4f6a8bdf
--- /dev/null
+++ b/Documentation/devicetree/bindings/arm/qcom,coresight-csr.yaml
@@ -0,0 +1,62 @@
+# SPDX-License-Identifier: GPL-2.0-only or BSD-2-Clause
+# Copyright (c) 2023 Qualcomm Innovation Center, Inc. All rights reserved.
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/arm/qcom,coresight-csr.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: CoreSight Slave Register - TPDA
+
+description: |
+  CoreSight Slave Register block hosts miscellaneous configuration registers.
+  Those configuration registers can be used to control, various coresight
+  configurations.
+
+maintainers:
+  - Mao Jinlong <quic_jinlmao@...cinc.com>
+  - Hao Zhang <quic_hazha@...cinc.com>
+
+properties:
+  $nodename:
+    pattern: "^csr(@[0-9a-f]+)$"
+  compatible:
+    items:
+      - const: qcom,coresight-csr
+
+  reg:
+    minItems: 1
+    maxItems: 2
+
+  clocks:
+    maxItems: 1
+
+  clock-names:
+    items:
+      - const: apb_pclk
+
+  qcom,set-byte-cntr-support:
+    $ref: /schemas/types.yaml#/definitions/flag
+    description:
+      If set, indicates that CSR supports to set ETR_IRQ_CTRL register.
+
+required:
+  - compatible
+  - reg
+  - clocks
+  - clock-names
+
+additionalProperties: false
+
+examples:
+  # minimum CSR definition.
+  - |
+    csr@...01000 {
+      compatible = "qcom,coresight-csr";
+      reg = <0 0x10001000 0 0x1000>;
+
+      clocks = <&aoss_qmp>;
+      clock-names = "apb_pclk";
+      qcom,set-byte-cntr-support;
+    };
+
+...
-- 
2.17.1

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