From 8b189fdbc5f68f3f43e67004de25f75c1a5b4e51 Mon Sep 17 00:00:00 2001
From: Alexandre Bounine <alexandre.bounine@idt.com>
Date: Tue, 22 Mar 2016 14:26:00 -0700
Subject: rapidio: add query_mport operation

Add mport query operation to report master port RapidIO capabilities and
run time configuration to upper level drivers.

Signed-off-by: Alexandre Bounine <alexandre.bounine@idt.com>
Cc: Matt Porter <mporter@kernel.crashing.org>
Cc: Aurelien Jacquiot <a-jacquiot@ti.com>
Cc: Andre van Herk <andre.van.herk@prodrive-technologies.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 drivers/rapidio/rio.c | 17 +++++++++++++++++
 1 file changed, 17 insertions(+)

(limited to 'drivers/rapidio')

diff --git a/drivers/rapidio/rio.c b/drivers/rapidio/rio.c
index e220edc85c68..c72f4da8065e 100644
--- a/drivers/rapidio/rio.c
+++ b/drivers/rapidio/rio.c
@@ -67,6 +67,23 @@ u16 rio_local_get_device_id(struct rio_mport *port)
 	return (RIO_GET_DID(port->sys_size, result));
 }
 
+/**
+ * rio_query_mport - Query mport device attributes
+ * @port: mport device to query
+ * @mport_attr: mport attributes data structure
+ *
+ * Returns attributes of specified mport through the
+ * pointer to attributes data structure.
+ */
+int rio_query_mport(struct rio_mport *port,
+		    struct rio_mport_attr *mport_attr)
+{
+	if (!port->ops->query_mport)
+		return -ENODATA;
+	return port->ops->query_mport(port, mport_attr);
+}
+EXPORT_SYMBOL(rio_query_mport);
+
 /**
  * rio_add_device- Adds a RIO device to the device model
  * @rdev: RIO device
-- 
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