diff options
| author | Grant Likely <grant.likely@secretlab.ca> | 2012-06-03 22:04:39 -0700 |
|---|---|---|
| committer | Grant Likely <grant.likely@secretlab.ca> | 2012-06-17 15:41:57 -0600 |
| commit | aed98048bd1c83469d96932c1901e867d9ba519a (patch) | |
| tree | b1347b9e4f3953de7a2ff665fbded5ba2c306d60 /kernel/irq | |
| parent | 732557047128e5c200c3590efba39f10ac46bcb2 (diff) | |
| download | linux-stable-aed98048bd1c83469d96932c1901e867d9ba519a.tar.gz linux-stable-aed98048bd1c83469d96932c1901e867d9ba519a.tar.bz2 linux-stable-aed98048bd1c83469d96932c1901e867d9ba519a.zip | |
irqdomain: Make ops->map hook optional
There isn't a really compelling reason to force ->map to be populated,
so allow it to be left unset.
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Paul Mundt <lethal@linux-sh.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Rob Herring <rob.herring@calxeda.com>
Diffstat (limited to 'kernel/irq')
| -rw-r--r-- | kernel/irq/irqdomain.c | 14 |
1 files changed, 4 insertions, 10 deletions
diff --git a/kernel/irq/irqdomain.c b/kernel/irq/irqdomain.c index b1f774cfd089..d3968e91bfd2 100644 --- a/kernel/irq/irqdomain.c +++ b/kernel/irq/irqdomain.c @@ -205,7 +205,8 @@ struct irq_domain *irq_domain_add_legacy(struct device_node *of_node, * one can then use irq_create_mapping() to * explicitly change them */ - ops->map(domain, irq, hwirq); + if (ops->map) + ops->map(domain, irq, hwirq); /* Clear norequest flags */ irq_clear_status_flags(irq, IRQ_NOREQUEST); @@ -340,8 +341,8 @@ static int irq_setup_virq(struct irq_domain *domain, unsigned int virq, irq_data->hwirq = hwirq; irq_data->domain = domain; - if (domain->ops->map(domain, virq, hwirq)) { - pr_debug("irq-%i==>hwirq-0x%lx mapping failed\n", virq, hwirq); + if (domain->ops->map && domain->ops->map(domain, virq, hwirq)) { + pr_err("irq-%i==>hwirq-0x%lx mapping failed\n", virq, hwirq); irq_data->domain = NULL; irq_data->hwirq = 0; return -1; @@ -763,12 +764,6 @@ static int __init irq_debugfs_init(void) __initcall(irq_debugfs_init); #endif /* CONFIG_IRQ_DOMAIN_DEBUG */ -static int irq_domain_simple_map(struct irq_domain *d, unsigned int irq, - irq_hw_number_t hwirq) -{ - return 0; -} - /** * irq_domain_xlate_onecell() - Generic xlate for direct one cell bindings * @@ -831,7 +826,6 @@ int irq_domain_xlate_onetwocell(struct irq_domain *d, EXPORT_SYMBOL_GPL(irq_domain_xlate_onetwocell); const struct irq_domain_ops irq_domain_simple_ops = { - .map = irq_domain_simple_map, .xlate = irq_domain_xlate_onetwocell, }; EXPORT_SYMBOL_GPL(irq_domain_simple_ops); |