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    Subject[PATCH 2/9] irqchip/git-v3-its: Implement irq_retrigger callback for device-triggered LPIs
    Date
    Signed-off-by: Marc Zyngier <maz@kernel.org>
    ---
    drivers/irqchip/irq-gic-v3-its.c | 6 ++++++
    1 file changed, 6 insertions(+)

    diff --git a/drivers/irqchip/irq-gic-v3-its.c b/drivers/irqchip/irq-gic-v3-its.c
    index 95f097448f97..2808545a963e 100644
    --- a/drivers/irqchip/irq-gic-v3-its.c
    +++ b/drivers/irqchip/irq-gic-v3-its.c
    @@ -1720,6 +1720,11 @@ static int its_irq_set_irqchip_state(struct irq_data *d,
    return 0;
    }

    +static int its_irq_retrigger(struct irq_data *d)
    +{
    + return !its_irq_set_irqchip_state(d, IRQCHIP_STATE_PENDING, true);
    +}
    +
    /*
    * Two favourable cases:
    *
    @@ -1971,6 +1976,7 @@ static struct irq_chip its_irq_chip = {
    .irq_set_affinity = its_set_affinity,
    .irq_compose_msi_msg = its_irq_compose_msi_msg,
    .irq_set_irqchip_state = its_irq_set_irqchip_state,
    + .irq_retrigger = its_irq_retrigger,
    .irq_set_vcpu_affinity = its_irq_set_vcpu_affinity,
    };

    --
    2.27.0
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