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From: Robin Murphy <robin.murphy@arm.com>
To: will@kernel.org
Cc: mark.rutland@arm.com, linux-arm-kernel@lists.infradead.org,
	linux-kernel@vger.kernel.org, ilkka@os.amperecomputing.com,
	devicetree@vger.kernel.org, Rob Herring <robh@kernel.org>
Subject: [PATCH v2 7/8] dt-bindings: perf: arm-cmn: Add CMN S3
Date: Mon,  2 Sep 2024 18:52:03 +0100	[thread overview]
Message-ID: <2150e87f33284ba55cf6594def018a02bcf809fe.1725296395.git.robin.murphy@arm.com> (raw)
In-Reply-To: <cover.1725296395.git.robin.murphy@arm.com>

The CMN S3 PMU is functionally still very similar to CMN-700, however
while the register contents are compatible, many of them are moved to
different offsets. While this is technically discoverable by a careful
driver that understands the part number in the peripheral ID registers
(which do at least remain in the same place), a new unique compatible
seems warranted to avoid any surprises.

CC: <devicetree@vger.kernel.org>
Acked-by: Rob Herring (Arm) <robh@kernel.org>
Signed-off-by: Robin Murphy <robin.murphy@arm.com>
---
 Documentation/devicetree/bindings/perf/arm,cmn.yaml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/Documentation/devicetree/bindings/perf/arm,cmn.yaml b/Documentation/devicetree/bindings/perf/arm,cmn.yaml
index 2e51072e794a..0e9d665584e6 100644
--- a/Documentation/devicetree/bindings/perf/arm,cmn.yaml
+++ b/Documentation/devicetree/bindings/perf/arm,cmn.yaml
@@ -16,6 +16,7 @@ properties:
       - arm,cmn-600
       - arm,cmn-650
       - arm,cmn-700
+      - arm,cmn-s3
       - arm,ci-700
 
   reg:
-- 
2.39.2.101.g768bb238c484.dirty


  parent reply	other threads:[~2024-09-02 17:52 UTC|newest]

Thread overview: 11+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2024-09-02 17:51 [PATCH v2 0/8] perf/arm-cmn: Fixes and updates Robin Murphy
2024-09-02 17:51 ` [PATCH v2 1/8] perf/arm-cmn: Refactor node ID handling. Again Robin Murphy
2024-09-02 17:51 ` [PATCH v2 2/8] perf/arm-cmn: Fix CCLA register offset Robin Murphy
2024-09-02 17:51 ` [PATCH v2 3/8] perf/arm-cmn: Ensure dtm_idx is big enough Robin Murphy
2024-09-02 17:52 ` [PATCH v2 4/8] perf/arm-cmn: Improve build-time assertion Robin Murphy
2024-09-02 17:52 ` [PATCH v2 5/8] perf/arm-cmn: Make cycle counts less surprising Robin Murphy
2024-09-02 17:52 ` [PATCH v2 6/8] perf/arm-cmn: Refactor DTC PMU register access Robin Murphy
2024-09-02 17:52 ` Robin Murphy [this message]
2024-09-02 17:52 ` [PATCH v2 8/8] perf/arm-cmn: Support CMN S3 Robin Murphy
2024-09-04 16:12 ` [PATCH v2 0/8] perf/arm-cmn: Fixes and updates Will Deacon
2024-09-05  6:35 ` Ilkka Koskinen

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