[PATCH 4.4 061/134] coresight: Fixes coresight DT parse to get correct output port ID.

From: Greg Kroah-Hartman
Date: Mon Mar 19 2018 - 14:14:41 EST


4.4-stable review patch. If anyone has any objections, please let me know.

------------------

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