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] of/irq: Document properties for wakeup interrupt parent
The following commit has been merged into the irq/core branch of tip:

Commit-ID: 09d31567f85b6cd0eddf28d90f7b83be09ee282b
Gitweb: https://git.kernel.org/tip/09d31567f85b6cd0eddf28d90f7b83be09ee282b
Author: Lina Iyer <ilina@codeaurora.org>
AuthorDate: Fri, 15 Nov 2019 15:11:48 -07:00
Committer: Marc Zyngier <maz@kernel.org>
CommitterDate: Sat, 16 Nov 2019 10:20:02

of/irq: Document properties for wakeup interrupt parent

Some interrupt controllers in a SoC, are always powered on and have a
select interrupts routed to them, so that they can wakeup the SoC from
suspend. Add wakeup-parent DT property to refer to these interrupt
controllers.

Signed-off-by: Lina Iyer <ilina@codeaurora.org>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Reviewed-by: Rob Herring <robh@kernel.org>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Reviewed-by: Stephen Boyd <swboyd@chromium.org>
Link: https://lore.kernel.org/r/1573855915-9841-6-git-send-email-ilina@codeaurora.org
---
Documentation/devicetree/bindings/interrupt-controller/interrupts.txt | 12 ++++++++++++
1 file changed, 12 insertions(+)

diff --git a/Documentation/devicetree/bindings/interrupt-controller/interrupts.txt b/Documentation/devicetree/bindings/interrupt-controller/interrupts.txt
index 4a3ee25..4ebfa00 100644
--- a/Documentation/devicetree/bindings/interrupt-controller/interrupts.txt
+++ b/Documentation/devicetree/bindings/interrupt-controller/interrupts.txt
@@ -108,3 +108,15 @@ commonly used:
sensitivity = <7>;
};
};
+
+3) Interrupt wakeup parent
+--------------------------
+
+Some interrupt controllers in a SoC, are always powered on and have a select
+interrupts routed to them, so that they can wakeup the SoC from suspend. These
+interrupt controllers do not fall into the category of a parent interrupt
+controller and can be specified by the "wakeup-parent" property and contain a
+single phandle referring to the wakeup capable interrupt controller.
+
+ Example:
+ wakeup-parent = <&pdc_intc>;
\
 
 \ /
  Last update: 2019-11-20 14:23    [W:0.115 / U:0.068 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site