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authorChris Lew <clew@codeaurora.org>2020-06-24 19:45:21 +0300
committerBjorn Andersson <bjorn.andersson@linaro.org>2020-09-15 06:51:13 +0300
commit4e3dda0bc603c1ca84680a56bfc49e8fe2519c89 (patch)
tree5d58c3d6d486d74fe79ca2fe8d5fd27f6a043bf6 /drivers/rpmsg
parent0f579e52472198cec2d3d794a26e277c84e9dbd2 (diff)
downloadlinux-4e3dda0bc603c1ca84680a56bfc49e8fe2519c89.tar.xz
rpmsg: glink: Expose rpmsg name attr for glink
Expose the name field as an attr so clients listening to uevents for rpmsg can identify the edge the events correspond to. Signed-off-by: Chris Lew <clew@codeaurora.org> Signed-off-by: Arun Kumar Neelakantam <aneela@codeaurora.org> Signed-off-by: Deepak Kumar Singh <deesin@codeaurora.org> Link: https://lore.kernel.org/r/1593017121-7953-5-git-send-email-deesin@codeaurora.org Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Diffstat (limited to 'drivers/rpmsg')
-rw-r--r--drivers/rpmsg/qcom_glink_native.c26
1 files changed, 26 insertions, 0 deletions
diff --git a/drivers/rpmsg/qcom_glink_native.c b/drivers/rpmsg/qcom_glink_native.c
index 3a7f87c968e0..0e8a28c09cc1 100644
--- a/drivers/rpmsg/qcom_glink_native.c
+++ b/drivers/rpmsg/qcom_glink_native.c
@@ -1574,6 +1574,26 @@ static void qcom_glink_cancel_rx_work(struct qcom_glink *glink)
kfree(dcmd);
}
+static ssize_t rpmsg_name_show(struct device *dev,
+ struct device_attribute *attr, char *buf)
+{
+ int ret = 0;
+ const char *name;
+
+ ret = of_property_read_string(dev->of_node, "label", &name);
+ if (ret < 0)
+ name = dev->of_node->name;
+
+ return snprintf(buf, RPMSG_NAME_SIZE, "%s\n", name);
+}
+static DEVICE_ATTR_RO(rpmsg_name);
+
+static struct attribute *qcom_glink_attrs[] = {
+ &dev_attr_rpmsg_name.attr,
+ NULL
+};
+ATTRIBUTE_GROUPS(qcom_glink);
+
static void qcom_glink_device_release(struct device *dev)
{
struct rpmsg_device *rpdev = to_rpmsg_device(dev);
@@ -1638,6 +1658,12 @@ struct qcom_glink *qcom_glink_native_probe(struct device *dev,
idr_init(&glink->lcids);
idr_init(&glink->rcids);
+ glink->dev->groups = qcom_glink_groups;
+
+ ret = device_add_groups(dev, qcom_glink_groups);
+ if (ret)
+ dev_err(dev, "failed to add groups\n");
+
ret = of_property_read_string(dev->of_node, "label", &glink->name);
if (ret < 0)
glink->name = dev->of_node->name;