[RFC,04/14] of: irq: document properties for wakeup interrupt parent
diff mbox series

Message ID 20190829181203.2660-5-ilina@codeaurora.org
State Not Applicable
Headers show
Series
  • Untitled series #128111
Related show

Checks

Context Check Description
robh/checkpatch success

Commit Message

Lina Iyer Aug. 29, 2019, 6:11 p.m. UTC
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.

Cc: devicetree@vger.kernel.org
Signed-off-by: Lina Iyer <ilina@codeaurora.org>
---
 .../bindings/interrupt-controller/interrupts.txt    | 13 +++++++++++++
 1 file changed, 13 insertions(+)

Comments

Rob Herring Sept. 2, 2019, 1:38 p.m. UTC | #1
On Thu, 29 Aug 2019 12:11:53 -0600, Lina Iyer wrote:
> 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.
> 
> Cc: devicetree@vger.kernel.org
> Signed-off-by: Lina Iyer <ilina@codeaurora.org>
> ---
>  .../bindings/interrupt-controller/interrupts.txt    | 13 +++++++++++++
>  1 file changed, 13 insertions(+)
> 

Reviewed-by: Rob Herring <robh@kernel.org>

Patch
diff mbox series

diff --git a/Documentation/devicetree/bindings/interrupt-controller/interrupts.txt b/Documentation/devicetree/bindings/interrupt-controller/interrupts.txt
index 8a3c40829899..c10e31050dd2 100644
--- a/Documentation/devicetree/bindings/interrupt-controller/interrupts.txt
+++ b/Documentation/devicetree/bindings/interrupt-controller/interrupts.txt
@@ -108,3 +108,16 @@  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>;
+