From: Gatien Chevallier <gatien.chevallier@foss.st.com>
To: "Suzuki K Poulose" <suzuki.poulose@arm.com>,
"Mike Leach" <mike.leach@linaro.org>,
"James Clark" <james.clark@linaro.org>,
"Rob Herring" <robh@kernel.org>,
"Krzysztof Kozlowski" <krzk+dt@kernel.org>,
"Conor Dooley" <conor+dt@kernel.org>,
"Mathieu Poirier" <mathieu.poirier@linaro.org>,
"Leo Yan" <leo.yan@linux.dev>,
"Clément Le Goffic" <legoffic.clement@gmail.com>,
"Linus Walleij" <linusw@kernel.org>,
"Maxime Coquelin" <mcoquelin.stm32@gmail.com>,
"Alexandre Torgue" <alexandre.torgue@foss.st.com>,
jens.wiklander@linaro.org
Cc: <coresight@lists.linaro.org>,
<linux-arm-kernel@lists.infradead.org>,
<devicetree@vger.kernel.org>, <linux-kernel@vger.kernel.org>,
<linux-gpio@vger.kernel.org>,
<linux-stm32@st-md-mailman.stormreply.com>,
Gatien Chevallier <gatien.chevallier@foss.st.com>
Subject: [PATCH v4 01/12] dt-bindings: document access-controllers property for coresight peripherals
Date: Thu, 22 Jan 2026 17:19:14 +0100 [thread overview]
Message-ID: <20260122-debug_bus-v4-1-28f0f2a25f2c@foss.st.com> (raw)
In-Reply-To: <20260122-debug_bus-v4-0-28f0f2a25f2c@foss.st.com>
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>
Reviewed-by: Rob Herring (Arm) <robh@kernel.org>
---
Documentation/devicetree/bindings/arm/arm,coresight-cti.yaml | 3 +++
.../devicetree/bindings/arm/arm,coresight-dynamic-funnel.yaml | 3 +++
Documentation/devicetree/bindings/arm/arm,coresight-etm.yaml | 3 +++
Documentation/devicetree/bindings/arm/arm,coresight-stm.yaml | 3 +++
Documentation/devicetree/bindings/arm/arm,coresight-tmc.yaml | 3 +++
Documentation/devicetree/bindings/arm/arm,coresight-tpiu.yaml | 3 +++
6 files changed, 18 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-dynamic-funnel.yaml b/Documentation/devicetree/bindings/arm/arm,coresight-dynamic-funnel.yaml
index b74db15e5f8a..b0693cd46d27 100644
--- a/Documentation/devicetree/bindings/arm/arm,coresight-dynamic-funnel.yaml
+++ b/Documentation/devicetree/bindings/arm/arm,coresight-dynamic-funnel.yaml
@@ -78,6 +78,9 @@ properties:
description: Output connection to CoreSight Trace bus
$ref: /schemas/graph.yaml#/properties/port
+ access-controllers:
+ maxItems: 1
+
required:
- compatible
- reg
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-stm.yaml b/Documentation/devicetree/bindings/arm/arm,coresight-stm.yaml
index 378380c3f5aa..f243e76f597f 100644
--- a/Documentation/devicetree/bindings/arm/arm,coresight-stm.yaml
+++ b/Documentation/devicetree/bindings/arm/arm,coresight-stm.yaml
@@ -73,6 +73,9 @@ properties:
description: Output connection to the CoreSight Trace bus.
$ref: /schemas/graph.yaml#/properties/port
+ access-controllers:
+ maxItems: 1
+
required:
- compatible
- reg
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
--
2.43.0
next prev parent reply other threads:[~2026-01-22 16:20 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-01-22 16:19 [PATCH v4 00/12] bus: add stm32 debug bus and coresight support for stm32mp1x platforms Gatien Chevallier
2026-01-22 16:19 ` Gatien Chevallier [this message]
2026-01-22 16:19 ` [PATCH v4 02/12] dt-bindings: pinctrl: document access-controllers property for stm32 HDP Gatien Chevallier
2026-01-22 16:19 ` [PATCH v4 03/12] dt-bindings: bus: document the stm32 debug bus Gatien Chevallier
2026-01-22 16:22 ` Gatien CHEVALLIER
2026-01-22 23:21 ` Rob Herring
2026-01-23 10:27 ` Gatien CHEVALLIER
2026-01-22 16:19 ` [PATCH v4 04/12] bus: stm32_firewall: allow check on different firewall controllers Gatien Chevallier
2026-01-22 16:19 ` [PATCH v4 05/12] bus: stm32_firewall: add stm32_firewall_get_grant_all_access() API Gatien Chevallier
2026-01-22 16:19 ` [PATCH v4 06/12] drivers: bus: add the stm32 debug bus driver Gatien Chevallier
2026-01-22 16:19 ` [PATCH v4 07/12] arm: dts: stm32: introduce the debug bus for stm32mp1x platforms Gatien Chevallier
2026-01-22 16:19 ` [PATCH v4 08/12] arm: dts: stm32: enable the debug bus on stm32mp1x boards Gatien Chevallier
2026-01-22 16:19 ` [PATCH v4 09/12] arm: dts: stm32: enable CoreSight on stm32mp15xx-dkx boards Gatien Chevallier
2026-01-22 16:19 ` [PATCH v4 10/12] arm: dts: stm32: enable CoreSight on the stm32mp157c-ev1 board Gatien Chevallier
2026-01-22 16:19 ` [PATCH v4 11/12] arm: dts: stm32: enable CoreSight on the stm32mp135f-dk board Gatien Chevallier
2026-01-22 16:19 ` [PATCH v4 12/12] pinctrl: stm32: add firewall checks before probing the HDP driver Gatien Chevallier
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