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irq_domain/mips: Allow irq_domain on MIPS

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This patch makes IRQ_DOMAIN usable on MIPS.  It uses an ugly workaround
to preserve current behaviour so that MIPS has time to add irq_domain
registration to the irq controller drivers.  The workaround will be
removed in Linux v3.6

Signed-off-by: Grant Likely <[email protected]>
Cc: Ralf Baechle <[email protected]>
Cc: Rob Herring <[email protected]>
Cc: Thomas Gleixner <[email protected]>
Cc: [email protected]
This commit is contained in:
Grant Likely 2012-02-24 08:07:06 -07:00
commit abd2363f6a
4 changed files with 14 additions and 18 deletions
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12
kernel/irq/irqdomain.c
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@ -411,6 +411,18 @@ unsigned int irq_create_of_mapping(struct device_node *controller,
domain = controller ? irq_find_host(controller) : irq_default_domain;
if (!domain) {
#ifdef CONFIG_MIPS
/*
* Workaround to avoid breaking interrupt controller drivers
* that don't yet register an irq_domain. This is temporary
* code. ~~~gcl, Feb 24, 2012
*
* Scheduled for removal in Linux v3.6. That should be enough
* time.
*/
if (intsize > 0)
return intspec[0];
#endif
printk(KERN_WARNING "irq: no irq domain found for %s !\n",
controller->full_name);
return 0;