[PATCH] [RFC] sh: dreamcast: Handle virq offset in cascaded IRQ demux

From: Geert Uytterhoeven
Date: Sun Jul 09 2023 - 09:10:55 EST


Take into account the virq offset when translating cascaded interrupts.

Fixes: a8ac2961148e8c72 ("sh: Avoid using IRQ0 on SH3 and SH4")
Signed-off-by: Geert Uytterhoeven <geert+renesas@xxxxxxxxx>
---
Compile-tested only.
---
arch/sh/boards/mach-dreamcast/irq.c | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/arch/sh/boards/mach-dreamcast/irq.c b/arch/sh/boards/mach-dreamcast/irq.c
index cc06e4cdb4cdf9b7..4e5fb59481a26747 100644
--- a/arch/sh/boards/mach-dreamcast/irq.c
+++ b/arch/sh/boards/mach-dreamcast/irq.c
@@ -108,13 +108,13 @@ int systemasic_irq_demux(int irq)
__u32 j, bit;

switch (irq) {
- case 13:
+ case 16 + 13:
level = 0;
break;
- case 11:
+ case 16 + 11:
level = 1;
break;
- case 9:
+ case 16 + 9:
level = 2;
break;
default:
--
2.34.1