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path: root/drivers/mailbox
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-rw-r--r--drivers/mailbox/mailbox.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/mailbox/mailbox.c b/drivers/mailbox/mailbox.c
index c281e5562876..58789b027708 100644
--- a/drivers/mailbox/mailbox.c
+++ b/drivers/mailbox/mailbox.c
@@ -78,6 +78,8 @@ static void msg_submit(struct mbox_chan *chan)
data = chan->msg_data[idx];
+ if (chan->cl->tx_prepare)
+ chan->cl->tx_prepare(chan->cl, data);
/* Try to submit a message to the MBOX controller */
err = chan->mbox->ops->send_data(chan, data);
if (!err) {