From 08b55e2a9208e4841a17c9d9c2c454986392977d Mon Sep 17 00:00:00 2001 From: Marc Zyngier Date: Wed, 11 Mar 2015 15:43:43 +0000 Subject: genirq: Add irqchip_set_wake_parent This proves to be useful with stacked domains, when the current domain doesn't implement wake-up, but expect the parent to do so. Acked-by: Tony Lindgren Signed-off-by: Marc Zyngier Link: https://lkml.kernel.org/r/1426088629-15377-2-git-send-email-marc.zyngier@arm.com Signed-off-by: Jason Cooper --- kernel/irq/chip.c | 16 ++++++++++++++++ 1 file changed, 16 insertions(+) (limited to 'kernel') diff --git a/kernel/irq/chip.c b/kernel/irq/chip.c index 6f1c7a566b95..eb9a4ea394ab 100644 --- a/kernel/irq/chip.c +++ b/kernel/irq/chip.c @@ -948,6 +948,22 @@ int irq_chip_retrigger_hierarchy(struct irq_data *data) return -ENOSYS; } + +/** + * irq_chip_set_wake_parent - Set/reset wake-up on the parent interrupt + * @data: Pointer to interrupt specific data + * @on: Whether to set or reset the wake-up capability of this irq + * + * Conditional, as the underlying parent chip might not implement it. + */ +int irq_chip_set_wake_parent(struct irq_data *data, unsigned int on) +{ + data = data->parent_data; + if (data->chip->irq_set_wake) + return data->chip->irq_set_wake(data, on); + + return -ENOSYS; +} #endif /** -- cgit v1.2.3