diff options
Diffstat (limited to 'drivers/mailbox/tegra-hsp.c')
| -rw-r--r-- | drivers/mailbox/tegra-hsp.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/drivers/mailbox/tegra-hsp.c b/drivers/mailbox/tegra-hsp.c index 834b35dc3b13..e9b392dc09bc 100644 --- a/drivers/mailbox/tegra-hsp.c +++ b/drivers/mailbox/tegra-hsp.c @@ -403,6 +403,11 @@ static int tegra_hsp_mailbox_flush(struct mbox_chan *chan, value = tegra_hsp_channel_readl(ch, HSP_SM_SHRD_MBOX); if ((value & HSP_SM_SHRD_MBOX_FULL) == 0) { mbox_chan_txdone(chan, 0); + + /* Wait until channel is empty */ + if (chan->active_req != NULL) + continue; + return 0; } |