[RFC,01/14] irqdomain: add bus token DOMAIN_BUS_WAKEUP
diff mbox series

Message ID 20190829181203.2660-2-ilina@codeaurora.org
State New
Headers show
  • qcom: support wakeup capable GPIOs
Related show

Commit Message

Lina Iyer Aug. 29, 2019, 6:11 p.m. UTC
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 <swboyd@chromium.org>
Signed-off-by: Lina Iyer <ilina@codeaurora.org>
 include/linux/irqdomain.h | 1 +
 1 file changed, 1 insertion(+)

diff mbox series

diff --git a/include/linux/irqdomain.h b/include/linux/irqdomain.h
index 07ec8b390161..cc846abeff28 100644
--- a/include/linux/irqdomain.h
+++ b/include/linux/irqdomain.h
@@ -83,6 +83,7 @@  enum irq_domain_bus_token {