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

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>

diff --git a/Documentation/devicetree/bindings/arm/coresight.txt b/Documentation/devicetree/bindings/arm/coresight.txt
index f8aff65ab9218bcd1790ecc91eeb222ffccde956..d02d160fa8acc317e773075d5e2d193383fa524a 100644 (file)
--- 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>;