Add a helper to check if the given endpoint is input.

Cc: Mathieu Poirier <[email protected]>
Signed-off-by: Suzuki K Poulose <[email protected]>
---
 drivers/hwtracing/coresight/of_coresight.c | 9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)

diff --git a/drivers/hwtracing/coresight/of_coresight.c 
b/drivers/hwtracing/coresight/of_coresight.c
index 16a77a7..b6a170f 100644
--- a/drivers/hwtracing/coresight/of_coresight.c
+++ b/drivers/hwtracing/coresight/of_coresight.c
@@ -45,6 +45,11 @@ of_coresight_get_endpoint_device(struct device_node 
*endpoint)
                               endpoint, of_dev_node_match);
 }
 
+static inline bool of_coresight_ep_is_input(struct device_node *ep)
+{
+       return of_property_read_bool(ep, "slave-mode");
+}
+
 static void of_coresight_get_ports(const struct device_node *node,
                                   int *nr_inport, int *nr_outport)
 {
@@ -56,7 +61,7 @@ static void of_coresight_get_ports(const struct device_node 
*node,
                if (!ep)
                        break;
 
-               if (of_property_read_bool(ep, "slave-mode"))
+               if (of_coresight_ep_is_input(ep))
                        in++;
                else
                        out++;
@@ -212,7 +217,7 @@ of_get_coresight_platform_data(struct device *dev,
                 * No need to deal with input ports, processing for as
                 * processing for output ports will deal with them.
                 */
-               if (of_find_property(ep, "slave-mode", NULL))
+               if (of_coresight_ep_is_input(ep))
                        continue;
 
                ret = of_coresight_parse_endpoint(dev, ep, pdata, &i);
-- 
2.7.4

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