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From: Anshuman Khandual <anshuman.khandual@arm.com>
To: linux-arm-kernel@lists.infradead.org, coresight@lists.linaro.org
Cc: mike.leach@linaro.org,
	Anshuman Khandual <anshuman.khandual@arm.com>,
	linux-kernel@vger.kernel.org, mathieu.poirier@linaro.org,
	suzuki.poulose@arm.com
Subject: [RFC 11/11] dts: bindings: Document device tree binding for Arm TRBE
Date: Tue, 10 Nov 2020 18:15:09 +0530	[thread overview]
Message-ID: <1605012309-24812-12-git-send-email-anshuman.khandual@arm.com> (raw)
In-Reply-To: <1605012309-24812-1-git-send-email-anshuman.khandual@arm.com>

This patch documents the device tree binding in use for Arm TRBE.

Signed-off-by: Anshuman Khandual <anshuman.khandual@arm.com>
---
 Documentation/devicetree/bindings/arm/trbe.txt | 20 ++++++++++++++++++++
 1 file changed, 20 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/arm/trbe.txt

diff --git a/Documentation/devicetree/bindings/arm/trbe.txt b/Documentation/devicetree/bindings/arm/trbe.txt
new file mode 100644
index 0000000..4bb5b09
--- /dev/null
+++ b/Documentation/devicetree/bindings/arm/trbe.txt
@@ -0,0 +1,20 @@
+* Trace Buffer Extension (TRBE)
+
+Trace Buffer Extension (TRBE) is used for collecting trace data generated
+from a corresponding trace unit (ETE) using an in memory trace buffer.
+
+** TRBE Required properties:
+
+- compatible : should be one of:
+	       "arm,arm-trbe"
+
+- interrupts : Exactly 1 PPI must be listed. For heterogeneous systems where
+	       TRBE is only supported on a subset of the CPUs, please consult
+	       the arm,gic-v3 binding for details on describing a PPI partition.
+
+** Example:
+
+trbe {
+	compatible = "arm,arm-trbe";
+	interrupts = <GIC_PPI 15 IRQ_TYPE_LEVEL_HIGH>;
+};
-- 
2.7.4


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  parent reply	other threads:[~2020-11-10 12:47 UTC|newest]

Thread overview: 36+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-11-10 12:44 [RFC 00/11] arm64: coresight: Enable ETE and TRBE Anshuman Khandual
2020-11-10 12:44 ` [RFC 01/11] arm64: Add TRBE definitions Anshuman Khandual
2020-11-10 12:45 ` [RFC 02/11] coresight: etm-perf: Allow an event to use different sinks Anshuman Khandual
2020-11-12  9:21   ` Suzuki K Poulose
2020-11-12 10:37     ` Linu Cherian
2020-11-12 11:09       ` Suzuki K Poulose
2020-11-10 12:45 ` [RFC 03/11] coresight: Do not scan for graph if none is present Anshuman Khandual
2020-11-10 12:45 ` [RFC 04/11] coresight: etm4x: Add support for PE OS lock Anshuman Khandual
2020-11-10 12:45 ` [RFC 05/11] coresight: ete: Add support for sysreg support Anshuman Khandual
2020-11-10 12:45 ` [RFC 06/11] coresight: ete: Detect ETE as one of the supported ETMs Anshuman Khandual
2020-11-14  5:36   ` Tingwei Zhang
2020-11-23  9:56     ` Suzuki K Poulose
2020-11-10 12:45 ` [RFC 07/11] coresight: sink: Add TRBE driver Anshuman Khandual
2020-11-12 10:13   ` Suzuki K Poulose
2020-11-25  5:25     ` Anshuman Khandual
2020-11-14  5:38   ` Tingwei Zhang
2020-11-23  3:51     ` Anshuman Khandual
2020-11-10 12:45 ` [RFC 08/11] coresight: etm-perf: Truncate the perf record if handle has no space Anshuman Khandual
2020-11-10 12:45 ` [RFC 09/11] coresight: etm-perf: Disable the path before capturing the trace data Anshuman Khandual
2020-11-12  9:27   ` Suzuki K Poulose
2020-11-23  6:08     ` Anshuman Khandual
2020-11-23 10:01       ` Suzuki K Poulose
2020-11-27 10:32   ` Suzuki K Poulose
2020-12-11 20:31     ` Mathieu Poirier
2020-12-14 10:00       ` Suzuki K Poulose
2020-11-10 12:45 ` [RFC 10/11] coresgith: etm-perf: Connect TRBE sink with ETE source Anshuman Khandual
2020-11-12  9:31   ` Suzuki K Poulose
2020-11-23  5:37     ` Anshuman Khandual
2020-12-11 21:31   ` Mathieu Poirier
2020-11-10 12:45 ` Anshuman Khandual [this message]
2020-11-10 18:25 ` [RFC 00/11] arm64: coresight: Enable ETE and TRBE Mathieu Poirier
2020-11-14  5:17 ` Tingwei Zhang
2020-11-16 15:00   ` Mike Leach
2020-11-23  3:40     ` Anshuman Khandual
2020-11-23 12:30       ` Mike Leach
2020-11-23  2:43   ` Anshuman Khandual

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