From mboxrd@z Thu Jan 1 00:00:00 1970 From: marc.zyngier@arm.com (Marc Zyngier) Date: Sat, 6 Dec 2014 13:46:12 +0000 Subject: [PATCH 1/5] genirq: Add irqchip_set_wake_parent In-Reply-To: <1417873576-10463-1-git-send-email-marc.zyngier@arm.com> References: <1417873576-10463-1-git-send-email-marc.zyngier@arm.com> Message-ID: <1417873576-10463-2-git-send-email-marc.zyngier@arm.com> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org This proves to be usefull with stacked domains. Signed-off-by: Marc Zyngier --- include/linux/irq.h | 1 + kernel/irq/chip.c | 16 ++++++++++++++++ 2 files changed, 17 insertions(+) diff --git a/include/linux/irq.h b/include/linux/irq.h index 8badf34..7de85b8 100644 --- a/include/linux/irq.h +++ b/include/linux/irq.h @@ -459,6 +459,7 @@ extern void irq_chip_eoi_parent(struct irq_data *data); extern int irq_chip_set_affinity_parent(struct irq_data *data, const struct cpumask *dest, bool force); +extern int irq_chip_set_wake_parent(struct irq_data *data, unsigned int on); #endif static inline void irq_chip_write_msi_msg(struct irq_data *data, diff --git a/kernel/irq/chip.c b/kernel/irq/chip.c index 6f1c7a5..96c190b 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 - 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 /** -- 2.1.3