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 4.4-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
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-4.4 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From foo@baz Mon Mar 19 09:58:12 CET 2018
From: Mike Leach <mike.leach@xxxxxxxxxx>
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@xxxxxxxxxx>
[ 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@xxxxxxxxxx>
Signed-off-by: Mathieu Poirier <mathieu.poirier@xxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
Signed-off-by: Sasha Levin <alexander.levin@xxxxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
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
@@ -150,7 +150,7 @@ 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@xxxxxxxxxx are
queue-4.4/coresight-fixes-coresight-dt-parse-to-get-correct-output-port-id.patch