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authorLina Iyer <ilina@codeaurora.org>2019-11-15 15:11:44 -0700
committerMarc Zyngier <maz@kernel.org>2019-11-16 10:18:52 +0000
commitd46bca2b5d06cbb5f3e66945080f275bcfab7181 (patch)
treedaa289a2090c473ebd69d13f774efcf62b680251
parent761becb29183c4e2ad9ff5f63933170c8fffd544 (diff)
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 <swboyd@chromium.org> Signed-off-by: Lina Iyer <ilina@codeaurora.org> Signed-off-by: Marc Zyngier <maz@kernel.org> Reviewed-by: Stephen Boyd <swboyd@chromium.org> Link: https://lore.kernel.org/r/1573855915-9841-2-git-send-email-ilina@codeaurora.org
-rw-r--r--include/linux/irqdomain.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/include/linux/irqdomain.h b/include/linux/irqdomain.h
index 583e7abd07f9..3c340dbc5a1f 100644
--- a/include/linux/irqdomain.h
+++ b/include/linux/irqdomain.h
@@ -83,6 +83,7 @@ enum irq_domain_bus_token {
DOMAIN_BUS_IPI,
DOMAIN_BUS_FSL_MC_MSI,
DOMAIN_BUS_TI_SCI_INTA_MSI,
+ DOMAIN_BUS_WAKEUP,
};
/**