From: Andrew Davis <afd@ti.com>
Date: Tue, 11 Jun 2024 17:04:56 +0000 (-0500)
Subject: mailbox: omap: Fix mailbox interrupt sharing
X-Git-Tag: v6.11-rc1~70^2~9
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=0a02bc0a34cd53c7fe5bf4bae6efb56ad47677fa;p=thirdparty%2Fkernel%2Flinux.git

mailbox: omap: Fix mailbox interrupt sharing

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@ti.com>
Fixes: 3f58c1f4206f ("mailbox: omap: Remove kernel FIFO message queuing")
Signed-off-by: Andrew Davis <afd@ti.com>
Tested-by: Beleswar Padhi <b-padhi@ti.com>
Signed-off-by: Jassi Brar <jassisinghbrar@gmail.com>
---

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;