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| author | Thomas Petazzoni <thomas.petazzoni@free-electrons.com> | 2012-11-20 23:00:53 +0100 |
|---|---|---|
| committer | Rob Herring <rob.herring@calxeda.com> | 2013-01-10 11:44:38 -0600 |
| commit | 73171d15873e9246c82aeda5c7fd8ec11cb97be9 (patch) | |
| tree | c6076389bb2727156c649cb345b6cff864336e2d /arch | |
| parent | f6e916b82022cba67bdd0ec7df84e2bce2ef3f73 (diff) | |
| download | linux-3.10-73171d15873e9246c82aeda5c7fd8ec11cb97be9.tar.gz linux-3.10-73171d15873e9246c82aeda5c7fd8ec11cb97be9.tar.bz2 linux-3.10-73171d15873e9246c82aeda5c7fd8ec11cb97be9.zip | |
arm: add set_handle_irq() to register the parent IRQ controller handler function
In order to allow irqchip drivers to register their IRQ handling
function as the parent IRQ controller handler function, we provide a
convenience function. This will avoid poking directly into the global
handle_arch_irq variable.
Suggested by Arnd Bergmann.
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
[Rob Herring: remove warning. 1st one to initialize wins.]
Signed-off-by: Rob Herring <rob.herring@calxeda.com>
Acked-by: Olof Johansson <olof@lixom.net>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/arm/include/asm/mach/irq.h | 1 | ||||
| -rw-r--r-- | arch/arm/kernel/irq.c | 10 |
2 files changed, 11 insertions, 0 deletions
diff --git a/arch/arm/include/asm/mach/irq.h b/arch/arm/include/asm/mach/irq.h index 15cb035309f..18c88302333 100644 --- a/arch/arm/include/asm/mach/irq.h +++ b/arch/arm/include/asm/mach/irq.h @@ -22,6 +22,7 @@ extern int show_fiq_list(struct seq_file *, int); #ifdef CONFIG_MULTI_IRQ_HANDLER extern void (*handle_arch_irq)(struct pt_regs *); +extern void set_handle_irq(void (*handle_irq)(struct pt_regs *)); #endif /* diff --git a/arch/arm/kernel/irq.c b/arch/arm/kernel/irq.c index 896165096d6..8e4ef4c83a7 100644 --- a/arch/arm/kernel/irq.c +++ b/arch/arm/kernel/irq.c @@ -117,6 +117,16 @@ void __init init_IRQ(void) machine_desc->init_irq(); } +#ifdef CONFIG_MULTI_IRQ_HANDLER +void __init set_handle_irq(void (*handle_irq)(struct pt_regs *)) +{ + if (handle_arch_irq) + return; + + handle_arch_irq = handle_irq; +} +#endif + #ifdef CONFIG_SPARSE_IRQ int __init arch_probe_nr_irqs(void) { |