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| author | Grant Likely <grant.likely@secretlab.ca> | 2012-02-24 08:07:06 -0700 |
|---|---|---|
| committer | Grant Likely <grant.likely@secretlab.ca> | 2012-02-24 09:47:23 -0700 |
| commit | abd2363f6a5f1030b935e0bdc15cf917313b3b10 (patch) | |
| tree | 1f4546497af8162a60573203c5b017e2f7fed1f5 /kernel | |
| parent | b4e518547da042fdc65bd4bdafd046fed13337d5 (diff) | |
| download | linux-abd2363f6a5f1030b935e0bdc15cf917313b3b10.tar.gz linux-abd2363f6a5f1030b935e0bdc15cf917313b3b10.tar.bz2 linux-abd2363f6a5f1030b935e0bdc15cf917313b3b10.zip | |
irq_domain/mips: Allow irq_domain on MIPS
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 <grant.likely@secretlab.ca>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: Rob Herring <rob.herring@calxeda.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: linux-mips@linux-mips.org
Diffstat (limited to 'kernel')
| -rw-r--r-- | kernel/irq/irqdomain.c | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/kernel/irq/irqdomain.c b/kernel/irq/irqdomain.c index 25a498eb98a3..af48e59bc2ff 100644 --- a/kernel/irq/irqdomain.c +++ b/kernel/irq/irqdomain.c @@ -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; |