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dt-bindings: arm: coresight: Add new compatible for static replicator

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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>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Leo Yan 2019-05-02 10:54:02 -06:00 committed by Greg Kroah-Hartman
parent b57969db81
commit 635b90f47d
1 changed files with 5 additions and 2 deletions
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7
Documentation/devicetree/bindings/arm/coresight.txt
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@ -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>;