diff options
| -rw-r--r-- | drivers/mailbox/pcc.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/drivers/mailbox/pcc.c b/drivers/mailbox/pcc.c index d8739eca5ac0..967eb249f40d 100644 --- a/drivers/mailbox/pcc.c +++ b/drivers/mailbox/pcc.c @@ -467,6 +467,12 @@ static int pcc_startup(struct mbox_chan *chan) unsigned long irqflags; int rc; + /* + * Clear and acknowledge any pending interrupts on responder channel + * before enabling the interrupt + */ + pcc_chan_acknowledge(pchan); + if (pchan->plat_irq > 0) { irqflags = pcc_chan_plat_irq_can_be_shared(pchan) ? IRQF_SHARED | IRQF_ONESHOT : 0; |