diff options
| author | Lina Iyer <ilina@codeaurora.org> | 2019-11-15 15:11:44 -0700 |
|---|---|---|
| committer | Marc Zyngier <maz@kernel.org> | 2019-11-16 10:18:52 +0000 |
| commit | d46bca2b5d06cbb5f3e66945080f275bcfab7181 (patch) | |
| tree | daa289a2090c473ebd69d13f774efcf62b680251 | |
| parent | 761becb29183c4e2ad9ff5f63933170c8fffd544 (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.h | 1 |
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, }; /** |