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Subject[tip: irq/core] irqdomain: Add bus token DOMAIN_BUS_WAKEUP
The following commit has been merged into the irq/core branch of tip:

Commit-ID: d46bca2b5d06cbb5f3e66945080f275bcfab7181
Author: Lina Iyer <>
AuthorDate: Fri, 15 Nov 2019 15:11:44 -07:00
Committer: Marc Zyngier <>
CommitterDate: Sat, 16 Nov 2019 10:18:52

irqdomain: Add bus token DOMAIN_BUS_WAKEUP

A single controller can handle normal interrupts and wake-up interrupts
independently, with a different numbering space. It is thus crucial to
allow the driver for such a controller discriminate between the two.

A simple way to do so is to tag the wake-up irqdomain with a "bus token"
that indicates the wake-up domain. This slightly abuses the notion of
bus, but also radically simplifies the design of such a driver. Between
two evils, we choose the least damaging.

Suggested-by: Stephen Boyd <>
Signed-off-by: Lina Iyer <>
Signed-off-by: Marc Zyngier <>
Reviewed-by: Stephen Boyd <>
include/linux/irqdomain.h | 1 +
1 file changed, 1 insertion(+)

diff --git a/include/linux/irqdomain.h b/include/linux/irqdomain.h
index 583e7ab..3c340db 100644
--- a/include/linux/irqdomain.h
+++ b/include/linux/irqdomain.h
@@ -83,6 +83,7 @@ enum irq_domain_bus_token {

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