All of lore.kernel.org
 help / color / mirror / Atom feed
From: Arun Kumar Neelakantam <aneela@codeaurora.org>
To: ohad@wizery.com, bjorn.andersson@linaro.org, clew@codeaurora.org,
	sricharan@codeaurora.org
Cc: linux-remoteproc@vger.kernel.org, linux-kernel@vger.kernel.org,
	Arun Kumar Neelakantam <aneela@codeaurora.org>,
	Andy Gross <agross@kernel.org>,
	linux-arm-msm@vger.kernel.org (open list:ARM/QUALCOMM SUPPORT)
Subject: [PATCH V6 4/5] rpmsg: glink: Expose rpmsg name attr for glink
Date: Wed, 20 May 2020 15:09:38 +0530	[thread overview]
Message-ID: <1589967579-15559-5-git-send-email-aneela@codeaurora.org> (raw)
In-Reply-To: <1589967579-15559-1-git-send-email-aneela@codeaurora.org>

From: Chris Lew <clew@codeaurora.org>

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>
---
 drivers/rpmsg/qcom_glink_native.c | 26 ++++++++++++++++++++++++++
 1 file changed, 26 insertions(+)

diff --git a/drivers/rpmsg/qcom_glink_native.c b/drivers/rpmsg/qcom_glink_native.c
index b85433c..2b5368b 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;
-- 
2.7.4

  parent reply	other threads:[~2020-05-20  9:40 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-05-20  9:39 [PATCH V5 0/5] Add chrdev and name query support for GLINK Arun Kumar Neelakantam
2020-05-20  9:39 ` [PATCH V6 1/5] rpmsg: glink: Use complete_all for open states Arun Kumar Neelakantam
2020-05-20  9:39 ` [PATCH V6 2/5] rpmsg: Guard against null endpoint ops in destroy Arun Kumar Neelakantam
2020-05-20  9:39 ` [PATCH V6 3/5] rpmsg: glink: Add support for rpmsg glink chrdev Arun Kumar Neelakantam
2020-05-20  9:39 ` Arun Kumar Neelakantam [this message]
2020-05-20  9:39 ` [PATCH V6 5/5] rpmsg: glink: unregister rpmsg device during endpoint destroy Arun Kumar Neelakantam

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=1589967579-15559-5-git-send-email-aneela@codeaurora.org \
    --to=aneela@codeaurora.org \
    --cc=agross@kernel.org \
    --cc=bjorn.andersson@linaro.org \
    --cc=clew@codeaurora.org \
    --cc=linux-arm-msm@vger.kernel.org \
    --cc=linux-kernel@vger.kernel.org \
    --cc=linux-remoteproc@vger.kernel.org \
    --cc=ohad@wizery.com \
    --cc=sricharan@codeaurora.org \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.