[PATCH 01/11] dt-bindings: document access-controllers property for coresight peripherals
From: Gatien Chevallier <gatien.chevallier@foss.st.com>
Date: 2026-01-09 10:56:26
Also in:
linux-devicetree, linux-gpio, lkml
Subsystem:
arm/coresight framework and drivers, open firmware and flattened device tree bindings, the rest · Maintainers:
Suzuki K Poulose, Rob Herring, Krzysztof Kozlowski, Conor Dooley, Linus Torvalds
Document the access-controllers for coresight peripherals in case some access checks need to be performed to use them. Signed-off-by: Gatien Chevallier <gatien.chevallier@foss.st.com> --- Documentation/devicetree/bindings/arm/arm,coresight-cti.yaml | 3 +++ Documentation/devicetree/bindings/arm/arm,coresight-etm.yaml | 3 +++ Documentation/devicetree/bindings/arm/arm,coresight-tmc.yaml | 3 +++ Documentation/devicetree/bindings/arm/arm,coresight-tpiu.yaml | 3 +++ 4 files changed, 12 insertions(+)
diff --git a/Documentation/devicetree/bindings/arm/arm,coresight-cti.yaml b/Documentation/devicetree/bindings/arm/arm,coresight-cti.yaml
index 2a91670ccb8c..949444aba1f8 100644
--- a/Documentation/devicetree/bindings/arm/arm,coresight-cti.yaml
+++ b/Documentation/devicetree/bindings/arm/arm,coresight-cti.yaml@@ -128,6 +128,9 @@ properties: "#address-cells": const: 1 + access-controllers: + maxItems: 1 + patternProperties: '^trig-conns@([0-9]+)$': type: object
diff --git a/Documentation/devicetree/bindings/arm/arm,coresight-etm.yaml b/Documentation/devicetree/bindings/arm/arm,coresight-etm.yaml
index 71f2e1ed27e5..10ebbbeadf93 100644
--- a/Documentation/devicetree/bindings/arm/arm,coresight-etm.yaml
+++ b/Documentation/devicetree/bindings/arm/arm,coresight-etm.yaml@@ -118,6 +118,9 @@ properties: description: Output connection from the ETM to CoreSight Trace bus. $ref: /schemas/graph.yaml#/properties/port + access-controllers: + maxItems: 1 + required: - compatible - clocks
diff --git a/Documentation/devicetree/bindings/arm/arm,coresight-tmc.yaml b/Documentation/devicetree/bindings/arm/arm,coresight-tmc.yaml
index 96dd5b5f771a..9dc096698c65 100644
--- a/Documentation/devicetree/bindings/arm/arm,coresight-tmc.yaml
+++ b/Documentation/devicetree/bindings/arm/arm,coresight-tmc.yaml@@ -128,6 +128,9 @@ properties: - const: tracedata - const: metadata + access-controllers: + maxItems: 1 + required: - compatible - reg
diff --git a/Documentation/devicetree/bindings/arm/arm,coresight-tpiu.yaml b/Documentation/devicetree/bindings/arm/arm,coresight-tpiu.yaml
index a207f6899e67..29bbc3961fdf 100644
--- a/Documentation/devicetree/bindings/arm/arm,coresight-tpiu.yaml
+++ b/Documentation/devicetree/bindings/arm/arm,coresight-tpiu.yaml@@ -70,6 +70,9 @@ properties: description: Input connection from the CoreSight Trace bus. $ref: /schemas/graph.yaml#/properties/port + access-controllers: + maxItems: 1 + required: - compatible - reg
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2.43.0