genirq: introduce irq_chip_mask_ack_parent() (5aa5bd56) · Commits · 戴 / test

The hierarchical irqchip never before ran into a situation where the parent is not "simple", i.e. does not implement .irq_ack() and .irq_mask() like most, but the qcom-pm8xxx.c happens to implement only .irq_mask_ack(). Since we want to make ssbi-gpio a hierarchical child of this irqchip, it must *also* only implement .irq_mask_ack() and call down to the parent, and for this we of course need irq_chip_mask_ack_parent(). Cc: Marc Zyngier <marc.zyngier@arm.com> Cc: Thomas Gleixner <tglx@linutronix.de> Acked-by:

Marc Zyngier <marc.zyngier@arm.com> Signed-off-by:

Brian Masney <masneyb@onstation.org> Signed-off-by:

Linus Walleij <linus.walleij@linaro.org>

include/linux/irq.h

+1 −0

Original line number	Diff line number	Diff line
		@@ -605,6 +605,7 @@ extern void irq_chip_disable_parent(struct irq_data *data);
		extern void irq_chip_ack_parent(struct irq_data *data);
		extern int irq_chip_retrigger_hierarchy(struct irq_data *data);
		extern void irq_chip_mask_parent(struct irq_data *data);
		extern void irq_chip_mask_ack_parent(struct irq_data *data);
		extern void irq_chip_unmask_parent(struct irq_data *data);
		extern void irq_chip_eoi_parent(struct irq_data *data);
		extern int irq_chip_set_affinity_parent(struct irq_data *data,

kernel/irq/chip.c

+11 −0

Original line number	Diff line number	Diff line
		@@ -1277,6 +1277,17 @@ void irq_chip_mask_parent(struct irq_data *data)
		}
		EXPORT_SYMBOL_GPL(irq_chip_mask_parent);

		/**
		* irq_chip_mask_ack_parent - Mask and acknowledge the parent interrupt
		* @data: Pointer to interrupt specific data
		*/
		void irq_chip_mask_ack_parent(struct irq_data *data)
		{
		data = data->parent_data;
		data->chip->irq_mask_ack(data);
		}
		EXPORT_SYMBOL_GPL(irq_chip_mask_ack_parent);

		/**
		* irq_chip_unmask_parent - Unmask the parent interrupt
		* @data: Pointer to interrupt specific data

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