On Mon, 7 Jan 2013 01:18:32 +0100, Linus Walleij <linus.wall...@stericsson.com> wrote: > From: Linus Walleij <linus.wall...@linaro.org> > > The first_irq needs to be zero to get a linear domain and that > comes with special semantics. We want to simplify this going > forward but some documentation never hurts. > > Signed-off-by: Linus Walleij <linus.wall...@linaro.org>
Applied, thanks. g. > --- > kernel/irq/irqdomain.c | 5 ++++- > 1 file changed, 4 insertions(+), 1 deletion(-) > > diff --git a/kernel/irq/irqdomain.c b/kernel/irq/irqdomain.c > index 96f3a1d..059a280 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 > * > -- > 1.7.11.3 > -- Grant Likely, B.Sc, P.Eng. Secret Lab Technologies, Ltd. -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
