From f8b5473fcbddbfde827ecf82aa0e81fa2a878220 Mon Sep 17 00:00:00 2001 From: Thomas Gleixner Date: Sat, 1 Jul 2006 22:30:08 +0100 Subject: [ARM] 3690/1: genirq: Introduce and make use of dummy irq chip Patch from Thomas Gleixner From: Thomas Gleixner ARM has a couple of really dumb interrupt controllers. Implement a generic one and fixup the ARM migration. ARM reused the no_irq_chip for this purpose, but this does not work out for platforms which are not converted to the new interrupt type handling model. Signed-off-by: Thomas Gleixner Signed-off-by: Ingo Molnar Signed-off-by: Russell King --- kernel/irq/handle.c | 16 ++++++++++++++++ 1 file changed, 16 insertions(+) (limited to 'kernel/irq/handle.c') diff --git a/kernel/irq/handle.c b/kernel/irq/handle.c index 961b8759173..e71266c3803 100644 --- a/kernel/irq/handle.c +++ b/kernel/irq/handle.c @@ -95,6 +95,22 @@ struct irq_chip no_irq_chip = { .end = noop, }; +/* + * Generic dummy implementation which can be used for + * real dumb interrupt sources + */ +struct irq_chip dummy_irq_chip = { + .name = "dummy", + .startup = noop_ret, + .shutdown = noop, + .enable = noop, + .disable = noop, + .ack = noop, + .mask = noop, + .unmask = noop, + .end = noop, +}; + /* * Special, empty irq handler: */ -- cgit v1.2.3