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rpmsg: glink: Expose rpmsg name attr for glink

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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>
This commit is contained in:
Chris Lew 2020-06-24 22:15:21 +05:30 committed by Bjorn Andersson
parent 0f579e5247
commit 4e3dda0bc6
1 changed files with 26 additions and 0 deletions
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26
drivers/rpmsg/qcom_glink_native.c
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@ -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;