mailbox: check for bit set before polling
Before polling we just need to see if the TXDONE_BY_POLL bit
is set in txdone_method. There may be another bit (method)
specified as well, like TXDONE_BY_ACK.
Signed-off-by: Jassi Brar <jassisinghbrar@gmail.com>
diff --git a/drivers/mailbox/mailbox.c b/drivers/mailbox/mailbox.c
index 59aad4d5..19b491d 100644
--- a/drivers/mailbox/mailbox.c
+++ b/drivers/mailbox/mailbox.c
@@ -87,7 +87,7 @@
exit:
spin_unlock_irqrestore(&chan->lock, flags);
- if (!err && chan->txdone_method == TXDONE_BY_POLL)
+ if (!err && (chan->txdone_method & TXDONE_BY_POLL))
poll_txdone((unsigned long)chan->mbox);
}