| From | Greg Kroah-Hartman <> | Subject | [PATCH 3.19 039/177] MIPS: Loongson-3: Add IRQF_NO_SUSPEND to Cascade irqaction | Date | Sat, 2 May 2015 21:01:01 +0200 |
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3.19-stable review patch. If anyone has any objections, please let me know.
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From: Huacai Chen <chenhc@lemote.com>
commit 0add9c2f1cff9f3f1f2eb7e9babefa872a9d14b9 upstream.
HPET irq is routed to i8259 and then to MIPS CPU irq (cascade). After commit a3e6c1eff5 (MIPS: IRQ: Fix disable_irq on CPU IRQs), if without IRQF_NO_SUSPEND in cascade_irqaction, HPET interrupts will lost during suspend. The result is machine cannot be waken up.
Signed-off-by: Huacai Chen <chenhc@lemote.com> Cc: Steven J. Hill <Steven.Hill@imgtec.com> Cc: linux-mips@linux-mips.org Cc: Fuxin Zhang <zhangfx@lemote.com> Cc: Zhangjin Wu <wuzhangjin@gmail.com> Patchwork: https://patchwork.linux-mips.org/patch/9528/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
--- arch/mips/loongson/loongson-3/irq.c | 1 + 1 file changed, 1 insertion(+)
--- a/arch/mips/loongson/loongson-3/irq.c +++ b/arch/mips/loongson/loongson-3/irq.c @@ -44,6 +44,7 @@ void mach_irq_dispatch(unsigned int pend static struct irqaction cascade_irqaction = { .handler = no_action, + .flags = IRQF_NO_SUSPEND, .name = "cascade", };
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