[PATCH] genirq: add IRQ_NOAUTOEN support (94d39e1f) · Commits · 戴 / test

include/linux/irq.h

+1 −0

Original line number	Diff line number	Diff line
		@@ -42,6 +42,7 @@

		#define IRQ_NOPROBE 512 /* IRQ is not valid for probing */
		#define IRQ_NOREQUEST 1024 /* IRQ cannot be requested */
		#define IRQ_NOAUTOEN 2048 /* IRQ will not be enabled on request irq */
		/**
		* struct hw_interrupt_type - hardware interrupt type descriptor
		*

+1 −0

Original line number	Diff line number	Diff line
		@@ -32,6 +32,7 @@ struct irq_desc irq_desc[NR_IRQS] __cacheline_aligned = {
		[0 ... NR_IRQS-1] = {
		.status = IRQ_DISABLED,
		.chip = &no_irq_type,
		.depth = 1,
		.lock = SPIN_LOCK_UNLOCKED,
		#ifdef CONFIG_SMP
		.affinity = CPU_MASK_ALL

+11 −7

Original line number	Diff line number	Diff line
		@@ -216,14 +216,18 @@ int setup_irq(unsigned int irq, struct irqaction *new)
		desc->status \|= IRQ_PER_CPU;
		#endif
		if (!shared) {
		desc->status &= ~(IRQ_AUTODETECT \| IRQ_WAITING \|
		IRQ_INPROGRESS);

		if (!(desc->status & IRQ_NOAUTOEN)) {
		desc->depth = 0;
		desc->status &= ~(IRQ_DISABLED \| IRQ_AUTODETECT \|
		IRQ_WAITING \| IRQ_INPROGRESS);
		desc->status &= ~IRQ_DISABLED;
		if (desc->chip->startup)
		desc->chip->startup(irq);
		else
		desc->chip->enable(irq);
		}
		}
		spin_unlock_irqrestore(&desc->lock, flags);

		new->irq = irq;