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| author | Stephen Rothwell <sfr@canb.auug.org.au> | 2013-02-14 14:28:18 +1100 |
|---|---|---|
| committer | Stephen Rothwell <sfr@canb.auug.org.au> | 2013-02-14 14:28:18 +1100 |
| commit | 7f8c4c0ecf429d53f96a5e3eb83f4ea08acba43f (patch) | |
| tree | 6bb7e580b44d400736247a9a0c733000e77f6a87 /kernel | |
| parent | 39bb22ca470a869b0748376045e2bb605e72828a (diff) | |
| parent | 560aa5394d2db5437b2deb3bb897655f0fd99f61 (diff) | |
Merge remote-tracking branch 'irqdomain/irqdomain/next'
Diffstat (limited to 'kernel')
| -rw-r--r-- | kernel/irq/irqdomain.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/kernel/irq/irqdomain.c b/kernel/irq/irqdomain.c index 96f3a1d9c379..059a28010ab5 100644 --- a/kernel/irq/irqdomain.c +++ b/kernel/irq/irqdomain.c @@ -143,7 +143,10 @@ static unsigned int irq_domain_legacy_revmap(struct irq_domain *domain, * irq_domain_add_simple() - Allocate and register a simple irq_domain. * @of_node: pointer to interrupt controller's device tree node. * @size: total number of irqs in mapping - * @first_irq: first number of irq block assigned to the domain + * @first_irq: first number of irq block assigned to the domain, + * pass zero to assign irqs on-the-fly. This will result in a + * linear IRQ domain so it is important to use irq_create_mapping() + * for each used IRQ, especially when SPARSE_IRQ is enabled. * @ops: map/unmap domain callbacks * @host_data: Controller private data pointer * |