linux-kernel - [PATCH] rpmsg: glink-smem: Name the edge based on parent remoteproc

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Date:   Mon, 19 Aug 2019 21:16:56 -0700
From:   Bjorn Andersson <bjorn.andersson@...aro.org>
To:     Ohad Ben-Cohen <ohad@...ery.com>,
        Bjorn Andersson <bjorn.andersson@...aro.org>
Cc:     linux-arm-msm@...r.kernel.org, linux-remoteproc@...r.kernel.org,
        linux-kernel@...r.kernel.org,
        Srinivas Kandagatla <srinivas.kandagatla@...aro.org>
Subject: [PATCH] rpmsg: glink-smem: Name the edge based on parent remoteproc

Naming the glink edge device on the parent of_node short name causes
collisions when multiple remoteproc instances with only different unit
address are described on the platform_bus in DeviceTree.

Base the edge's name on the parent remoteproc's name instead, to ensure
that it's unique.

Signed-off-by: Bjorn Andersson <bjorn.andersson@...aro.org>
---
 drivers/rpmsg/qcom_glink_smem.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/rpmsg/qcom_glink_smem.c b/drivers/rpmsg/qcom_glink_smem.c
index 64a5ce324c7f..4238383d8685 100644
--- a/drivers/rpmsg/qcom_glink_smem.c
+++ b/drivers/rpmsg/qcom_glink_smem.c
@@ -201,7 +201,7 @@ struct qcom_glink *qcom_glink_smem_register(struct device *parent,
 	dev->parent = parent;
 	dev->of_node = node;
 	dev->release = qcom_glink_smem_release;
-	dev_set_name(dev, "%pOFn:%pOFn", node->parent, node);
+	dev_set_name(dev, "%s:%pOFn", dev_name(parent->parent), node);
 	ret = device_register(dev);
 	if (ret) {
 		pr_err("failed to register glink edge\n");
-- 
2.18.0