[PATCH v5 08/16] rpmsg: glink: add sendto and trysendto ops

[Arnaud Pouliquen <arnaud.pouliquen@foss.st.com>]

Implement the sendto ops to support the future rpmsg_char update for the
vitio backend support.
The use of sendto in rpmsg_char is needed as a destination address is
requested at least by the virtio backend.
The glink implementation does not need a destination address so ignores it.

Signed-off-by: Arnaud Pouliquen <arnaud.pouliquen@foss.st.com>
---
 drivers/rpmsg/qcom_glink_native.c | 16 ++++++++++++++++
 1 file changed, 16 insertions(+)

diff --git a/drivers/rpmsg/qcom_glink_native.c b/drivers/rpmsg/qcom_glink_native.c
index d4e4dd482614..ae2c03b59c55 100644
--- a/drivers/rpmsg/qcom_glink_native.c
+++ b/drivers/rpmsg/qcom_glink_native.c
@@ -1332,6 +1332,20 @@ static int qcom_glink_trysend(struct rpmsg_endpoint *ept, void *data, int len)
 	return __qcom_glink_send(channel, data, len, false);
 }
 
+static int qcom_glink_sendto(struct rpmsg_endpoint *ept, void *data, int len, u32 dst)
+{
+	struct glink_channel *channel = to_glink_channel(ept);
+
+	return __qcom_glink_send(channel, data, len, true);
+}
+
+static int qcom_glink_trysendto(struct rpmsg_endpoint *ept, void *data, int len, u32 dst)
+{
+	struct glink_channel *channel = to_glink_channel(ept);
+
+	return __qcom_glink_send(channel, data, len, false);
+}
+
 /*
  * Finds the device_node for the glink child interested in this channel.
  */
@@ -1364,7 +1378,9 @@ static const struct rpmsg_device_ops glink_device_ops = {
 static const struct rpmsg_endpoint_ops glink_endpoint_ops = {
 	.destroy_ept = qcom_glink_destroy_ept,
 	.send = qcom_glink_send,
+	.sendto = qcom_glink_sendto,
 	.trysend = qcom_glink_trysend,
+	.trysendto = qcom_glink_trysendto,
 };
 
 static void qcom_glink_rpdev_release(struct device *dev)
-- 
2.17.1