Patchwork [v4,02/10] irqdomain: add bus token DOMAIN_BUS_WAKEUP

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Submitter Lina Iyer
Date March 13, 2019, 9:18 p.m.
Message ID <20190313211844.29416-3-ilina@codeaurora.org>
Download mbox | patch
Permalink /patch/748445/
State New
Headers show

Comments

Lina Iyer - March 13, 2019, 9:18 p.m.
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>
---
Changes in v4:
	- Update commit text
---
 include/linux/irqdomain.h | 1 +
 1 file changed, 1 insertion(+)

Patch

diff --git a/include/linux/irqdomain.h b/include/linux/irqdomain.h
index 35965f41d7be..05055bc992ab 100644
--- a/include/linux/irqdomain.h
+++ b/include/linux/irqdomain.h
@@ -82,6 +82,7 @@  enum irq_domain_bus_token {
 	DOMAIN_BUS_NEXUS,
 	DOMAIN_BUS_IPI,
 	DOMAIN_BUS_FSL_MC_MSI,
+	DOMAIN_BUS_WAKEUP,
 };
 
 /**