6.10-stable review patch. If anyone has any objections, please let me know.
------------------
From: Andrew Davis <afd@xxxxxx>
[ Upstream commit 0a02bc0a34cd53c7fe5bf4bae6efb56ad47677fa ]
Multiple mailbox users can share one interrupt line. This flag was
mistakenly dropped as part of the FIFO removal. Mark the IRQ as shared.
Reported-by: Beleswar Padhi <b-padhi@xxxxxx>
Fixes: 3f58c1f4206f ("mailbox: omap: Remove kernel FIFO message queuing")
Signed-off-by: Andrew Davis <afd@xxxxxx>
Tested-by: Beleswar Padhi <b-padhi@xxxxxx>
Signed-off-by: Jassi Brar <jassisinghbrar@xxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
drivers/mailbox/omap-mailbox.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/drivers/mailbox/omap-mailbox.c b/drivers/mailbox/omap-mailbox.c
index 46747559b438f..7a87424657a15 100644
--- a/drivers/mailbox/omap-mailbox.c
+++ b/drivers/mailbox/omap-mailbox.c
@@ -230,7 +230,8 @@ static int omap_mbox_startup(struct omap_mbox *mbox)
int ret = 0;
ret = request_threaded_irq(mbox->irq, NULL, mbox_interrupt,
- IRQF_ONESHOT, mbox->name, mbox);
+ IRQF_SHARED | IRQF_ONESHOT, mbox->name,
+ mbox);
if (unlikely(ret)) {
pr_err("failed to register mailbox interrupt:%d\n", ret);
return ret;
--
2.43.0
