Messages in this thread | | | Date | Wed, 18 Mar 2020 20:57:05 +0000 | From | Will Deacon <> | Subject | Re: [PATCH 1/2] perf: dsu: Allow multiple devices share same IRQ. |
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[+Suzuki, since he wrote the driver]
On Tue, Mar 17, 2020 at 05:26:15PM -0700, Tuan Phan wrote: > Add IRQF_SHARED flag when register IRQ such that multiple dsu > devices can share same IRQ. > > Signed-off-by: Tuan Phan <tuanphan@os.amperecomputing.com> > --- > drivers/perf/arm_dsu_pmu.c | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-) > > diff --git a/drivers/perf/arm_dsu_pmu.c b/drivers/perf/arm_dsu_pmu.c > index 70968c8..2622900 100644 > --- a/drivers/perf/arm_dsu_pmu.c > +++ b/drivers/perf/arm_dsu_pmu.c > @@ -700,7 +700,7 @@ static int dsu_pmu_device_probe(struct platform_device *pdev) > if (!name) > return -ENOMEM; > rc = devm_request_irq(&pdev->dev, irq, dsu_pmu_handle_irq, > - IRQF_NOBALANCING, name, dsu_pmu); > + IRQF_NOBALANCING | IRQF_SHARED, name, dsu_pmu); > if (rc) { > dev_warn(&pdev->dev, "Failed to request IRQ %d\n", irq); > return rc; > -- > 2.7.4 >
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