linux-kernel - [PATCH V4 2/9] rpmsg: glink: Store edge name for glink device

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Date:   Fri, 27 Jul 2018 17:47:22 +0530
From:   Arun Kumar Neelakantam <aneela@...eaurora.org>
To:     ohad@...ery.com, bjorn.andersson@...aro.org, clew@...eaurora.org,
        robh+dt@...nel.org, arnaud.pouliquen@...com, andy.gross@...aro.org
Cc:     linux-remoteproc@...r.kernel.org, linux-kernel@...r.kernel.org,
        Arun Kumar Neelakantam <aneela@...eaurora.org>
Subject: [PATCH V4 2/9] rpmsg: glink: Store edge name for glink device

From: Chris Lew <clew@...eaurora.org>

Channels may need to identify the edge their channel was probed for.
Store the edge name by reading the label property from device tree or
default to the node name.

Signed-off-by: Chris Lew <clew@...eaurora.org>
Signed-off-by: Arun Kumar Neelakantam <aneela@...eaurora.org>
---
 drivers/rpmsg/qcom_glink_native.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/drivers/rpmsg/qcom_glink_native.c b/drivers/rpmsg/qcom_glink_native.c
index f505f58..22a3cac 100644
--- a/drivers/rpmsg/qcom_glink_native.c
+++ b/drivers/rpmsg/qcom_glink_native.c
@@ -93,6 +93,8 @@ struct glink_core_rx_intent {
 struct qcom_glink {
 	struct device *dev;
 
+	const char *name;
+
 	struct mbox_client mbox_client;
 	struct mbox_chan *mbox_chan;
 
@@ -1572,6 +1574,10 @@ struct qcom_glink *qcom_glink_native_probe(struct device *dev,
 	idr_init(&glink->lcids);
 	idr_init(&glink->rcids);
 
+	ret = of_property_read_string(dev->of_node, "label", &glink->name);
+	if (ret < 0)
+		glink->name = dev->of_node->name;
+
 	glink->mbox_client.dev = dev;
 	glink->mbox_client.knows_txdone = true;
 	glink->mbox_chan = mbox_request_channel(&glink->mbox_client, 0);
-- 
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