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Subject[PATCH 3/3] rpmsg: smd: implement get_mtu ops
Date
Implement the get_mtu ops to return the maximum size of
the message that can be sent.

Signed-off-by: Arnaud Pouliquen <arnaud.pouliquen@st.com>
---
drivers/rpmsg/qcom_smd.c | 8 ++++++++
1 file changed, 8 insertions(+)

diff --git a/drivers/rpmsg/qcom_smd.c b/drivers/rpmsg/qcom_smd.c
index 4abbeea782fa..f233f8d85062 100644
--- a/drivers/rpmsg/qcom_smd.c
+++ b/drivers/rpmsg/qcom_smd.c
@@ -989,6 +989,13 @@ static __poll_t qcom_smd_poll(struct rpmsg_endpoint *ept,
return mask;
}

+static ssize_t qcom_smd_get_mtu(struct rpmsg_endpoint *ept)
+{
+ struct qcom_smd_endpoint *qsept = to_smd_endpoint(ept);
+
+ return qcom_smd_get_tx_avail(qsept->qsch);
+}
+
/*
* Finds the device_node for the smd child interested in this channel.
*/
@@ -1040,6 +1047,7 @@ static const struct rpmsg_endpoint_ops qcom_smd_endpoint_ops = {
.send = qcom_smd_send,
.trysend = qcom_smd_trysend,
.poll = qcom_smd_poll,
+ .get_mtu = qcom_smd_get_mtu,
};

static void qcom_smd_release_device(struct device *dev)
--
2.7.4
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