On Tue, Jun 13, 2017 at 10:55:28AM -0600, Mathieu Poirier wrote:

On Mon, Jun 12, 2017 at 03:36:40PM +0100, Suzuki K Poulose wrote:

quoted

The Linux coresight drivers define the programmable ATB replicator as
Qualcom replicator, while this is designed by ARM. This can cause confusion
to a user selecting the driver. Cleanup all references to make it
 explicitly clear. This patch :

 1) Adds a new compatible string for the same, retaining the old one for
    compatibility.
 2) Changes the Kconfig symbol (since this is not part of any defconfigs)
	 CORESIGHT_QCOM_REPLICATOR => CORESIGHT_DYNAMIC_REPLICATOR
 3) Improves the help message in the Kconfig.
 4) Changes the name of the driver :
	coresight-replicator-qcom => coresight-dynamic-replicator

Cc: Pratik Patel <redacted>
Cc: Ivan T. Ivanov <redacted>
Cc: Mathieu Poirier <mathieu.poirier@linaro.org>
Cc: devicetree at vger.kernel.org
Cc: Rob Herring <robh+dt@kernel.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Signed-off-by: Suzuki K Poulose <suzuki.poulose@arm.com>

Hi Suzuki,

quoted

---
 Documentation/devicetree/bindings/arm/coresight.txt     |  4 +++-
 drivers/hwtracing/coresight/Kconfig                     | 10 +++++-----
 drivers/hwtracing/coresight/Makefile                    |  2 +-
 drivers/hwtracing/coresight/coresight-replicator-qcom.c |  2 +-
 4 files changed, 10 insertions(+), 8 deletions(-)

diff --git a/Documentation/devicetree/bindings/arm/coresight.txt b/Documentation/devicetree/bindings/arm/coresight.txt
index fcbae6a..f77329f 100644
--- a/Documentation/devicetree/bindings/arm/coresight.txt
+++ b/Documentation/devicetree/bindings/arm/coresight.txt

@@ -34,7 +34,9 @@ its hardware characteristcs.
 		- Embedded Trace Macrocell (version 4.x):
 			"arm,coresight-etm4x", "arm,primecell";
 
-		- Qualcomm Configurable Replicator (version 1.x):
+		- Coresight programmable Replicator (version 1.x):
+			"arm,coresight-dynamic-replicator", "arm,primecell";
+				OR
 			"qcom,coresight-replicator1x", "arm,primecell";

Rob, what's your view on keeping the old binding around?  We could simply change
the two occurences we find in the DTs (Juno and 410c) to the new name and be
done with the old one.

Juno uses the Qcom string? We should keep the old string. You can switch 
the dts files, but the driver should support the old name.

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