[PATCH AUTOSEL for 4.9 132/219] coresight: Fixes coresight DT parse to get correct output port ID.

Sasha Levin
2018-03-03T22:29:12Z

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>
---
drivers/hwtracing/coresight/of_coresight.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/hwtracing/coresight/of_coresight.c b/drivers/hwtracing/coresight/of_coresight.c
index 629e031b7456..09142e99e915 100644
--- a/drivers/hwtracing/coresight/of_coresight.c
+++ b/drivers/hwtracing/coresight/of_coresight.c
@@ -149,7 +149,7 @@ struct coresight_platform_data *of_get_coresight_platform_data(
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
--
2.14.1