lkml.org 
[lkml]   [2019]   [Nov]   [20]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
Date
From
Subject[tip: irq/core] irqdomain: Add bus token DOMAIN_BUS_WAKEUP
The following commit has been merged into the irq/core branch of tip:

Commit-ID: d46bca2b5d06cbb5f3e66945080f275bcfab7181
Gitweb: https://git.kernel.org/tip/d46bca2b5d06cbb5f3e66945080f275bcfab7181
Author: Lina Iyer <ilina@codeaurora.org>
AuthorDate: Fri, 15 Nov 2019 15:11:44 -07:00
Committer: Marc Zyngier <maz@kernel.org>
CommitterDate: Sat, 16 Nov 2019 10:18:52

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
---
include/linux/irqdomain.h | 1 +
1 file changed, 1 insertion(+)

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 {
DOMAIN_BUS_IPI,
DOMAIN_BUS_FSL_MC_MSI,
DOMAIN_BUS_TI_SCI_INTA_MSI,
+ DOMAIN_BUS_WAKEUP,
};

/**
\
 
 \ /
  Last update: 2019-11-20 14:22    [W:0.916 / U:0.136 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site