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David Brownell 15a647eba9 [PATCH] genirq: {en,dis}able_irq_wake() need refcounting too ... IRQs need refcounting and a state flag to track whether the the IRQ should be enabled or disabled as a "normal IRQ" source after a series of calls to {en,dis}able_irq(). For shared IRQs, the IRQ must be enabled so long as at least one driver needs it active. Likewise, IRQs need the same support to track whether the IRQ should be enabled or disabled as a "wakeup event" source after a series of calls to {en,dis}able_irq_wake(). For shared IRQs, the IRQ must be enabled as a wakeup source during sleep so long as at least one driver needs it. But right now they _don't have_ that refcounting ... which means sharing a wakeup-capable IRQ can't work correctly in some configurations. This patch adds the refcount and flag mechanisms to set_irq_wake() -- which is what {en,dis}able_irq_wake() call -- and minimal documentation of what the irq wake mechanism does. Drivers relying on the older (broken) "toggle" semantics will trigger a warning; that'll be a handful of drivers on ARM systems. Signed-off-by: David Brownell <dbrownell@users.sourceforge.net> Acked-by: Ingo Molnar <mingo@elte.hu> Acked-by: Thomas Gleixner <tglx@linutronix.de> Cc: Russell King <rmk@arm.linux.org.uk> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>		19 years ago
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Makefile	…
autoprobe.c	…
chip.c	[PATCH] genirq: Allow fasteoi handler to retrigger disabled interrupts	19 years ago
handle.c	[PATCH] lockdep: annotate enable_in_hardirq()	19 years ago
internals.h	…
manage.c	[PATCH] genirq: {en,dis}able_irq_wake() need refcounting too	19 years ago
migration.c	…
proc.c	…
resend.c	…
spurious.c	[PATCH] irq-flags: generic irq: Use the new IRQF_ constants	19 years ago