This is a note to let you know that I've just added the patch titled
coresight: Fixes coresight DT parse to get correct output port ID.
to the 4.9-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git%3Ba=su...
The filename of the patch is: coresight-fixes-coresight-dt-parse-to-get-correct-output-port-id.patch and it can be found in the queue-4.9 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree, please let stable@vger.kernel.org know about it.
From foo@baz Sun Mar 18 16:55:33 CET 2018
From: Mike Leach mike.leach@linaro.org Date: Mon, 27 Mar 2017 11:09:33 -0600 Subject: coresight: Fixes coresight DT parse to get correct output port ID.
From: Mike Leach mike.leach@linaro.org
[ Upstream commit eeedc5421dd3b51de73e6106405c5c77f920f281 ]
Corrected to get the port numbering to allow programmable replicator driver to operate correctly.
By convention, CoreSight devices number ports, not endpoints in the .dts files:-
port { reg<N> endpoint { } }
Existing code read endpoint number - always 0x0, rather than the correct port number.
Signed-off-by: Mike Leach mike.leach@linaro.org Signed-off-by: Mathieu Poirier mathieu.poirier@linaro.org Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org Signed-off-by: Sasha Levin alexander.levin@microsoft.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/hwtracing/coresight/of_coresight.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
--- a/drivers/hwtracing/coresight/of_coresight.c +++ b/drivers/hwtracing/coresight/of_coresight.c @@ -149,7 +149,7 @@ struct coresight_platform_data *of_get_c continue;
/* The local out port number */ - pdata->outports[i] = endpoint.id; + pdata->outports[i] = endpoint.port;
/* * Get a handle on the remote port and parent
Patches currently in stable-queue which might be from mike.leach@linaro.org are
queue-4.9/coresight-fixes-coresight-dt-parse-to-get-correct-output-port-id.patch