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[1/4] dt-bindings: arm: coresight: Add new compatible for static replicator

Message ID 20190502165405.31573-2-mathieu.poirier@linaro.org
State New
Headers show
Series coresight: next v5.1-rc7 | expand

Commit Message

Mathieu Poirier May 2, 2019, 4:54 p.m. UTC 
From: Leo Yan <leo.yan@linaro.org>


CoreSight uses below bindings for replicator:

  Dynamic replicator, aka. configurable replicator:
    "arm,coresight-dynamic-replicator", "arm,primecell";

  Static replicator, aka. non-configurable replicator:
    "arm,coresight-replicator";

The compatible string "arm,coresight-replicator" is not an explicit
naming to express the replicator is 'static'.  To unify the naming
convention, this patch introduces a new compatible string
"arm,coresight-static-replicator" for the static replicator; the
compatible string "arm,coresight-replicator" is kept for backward
compatibility, but tag it as obsolete and suggest to use the new
compatible string.

As result CoreSight replicator have below bindings:

  Dynamic replicator:
    "arm,coresight-dynamic-replicator", "arm,primecell";

  Static replicator:
    "arm,coresight-static-replicator";
    "arm,coresight-replicator"; (obsolete)

Signed-off-by: Leo Yan <leo.yan@linaro.org>

Reviewed-by: Suzuki K Poulose <suzuki.poulose@arm.com>

Reviewed-by: Rob Herring <robh@kernel.org>

Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org>

---
 Documentation/devicetree/bindings/arm/coresight.txt | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

-- 
2.17.1
diff mbox series

Patch

diff --git a/Documentation/devicetree/bindings/arm/coresight.txt b/Documentation/devicetree/bindings/arm/coresight.txt
index f8aff65ab921..d02d160fa8ac 100644
--- a/Documentation/devicetree/bindings/arm/coresight.txt
+++ b/Documentation/devicetree/bindings/arm/coresight.txt
@@ -69,7 +69,10 @@  its hardware characteristcs.
 
 	* compatible: Currently supported value is (note the absence of the
 	  AMBA markee):
-		- "arm,coresight-replicator"
+		- Coresight Non-configurable Replicator:
+			"arm,coresight-static-replicator";
+			"arm,coresight-replicator"; (OBSOLETE. For backward
+				compatibility and will be removed)
 
 	* port or ports: see "Graph bindings for Coresight" below.
 
@@ -169,7 +172,7 @@  Example:
 		/* non-configurable replicators don't show up on the
 		 * AMBA bus.  As such no need to add "arm,primecell".
 		 */
-		compatible = "arm,coresight-replicator";
+		compatible = "arm,coresight-static-replicator";
 
 		out-ports {
 			#address-cells = <1>;