[v2,01/12] irqdomain: add bus token DOMAIN_BUS_WAKEUP
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Message ID 1573855915-9841-2-git-send-email-ilina@codeaurora.org
State New
Headers show
  • Support wakeup capable GPIOs
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Commit Message

Lina Iyer Nov. 15, 2019, 10:11 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>
Reviewed-by: Stephen Boyd <swboyd@chromium.org>
 include/linux/irqdomain.h | 1 +
 1 file changed, 1 insertion(+)

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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 {