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Commit e3ece0d5 authored by Chen-Yu Tsai's avatar Chen-Yu Tsai Committed by Marc Zyngier
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irqchip/sunxi-nmi: Document interrupt disabling and clearing at probe time 



The sunxi-nmi disables all its interrupts and clears any pending
interrupts at probe time.

Add comments documenting it, just to make it clear.

Signed-off-by: default avatarChen-Yu Tsai <wens@csie.org>
Signed-off-by: default avatarMarc Zyngier <marc.zyngier@arm.com>
parent 9ce18f6f

drivers/irqchip/irq-sunxi-nmi.c

+3 −0
Original line number Diff line number Diff line
@@ -201,7 +201,10 @@ static int __init sunxi_sc_nmi_irq_init(struct device_node *node, 
	gc->chip_types[1].regs.type		= reg_offs->ctrl;

	gc->chip_types[1].handler		= handle_edge_irq;



	/* Disable any active interrupts */

	sunxi_sc_nmi_write(gc, reg_offs->enable, 0);



	/* Clear any pending NMI interrupts */

	sunxi_sc_nmi_write(gc, reg_offs->pend, SUNXI_NMI_IRQ_BIT);



	irq_set_chained_handler_and_data(irq, sunxi_sc_nmi_handle_irq, domain);