diff options
| author |   Lina Iyer <ilina@codeaurora.org> | 2019-11-15 15:11:48 -0700 |
|---|---|---|
| committer |   Marc Zyngier <maz@kernel.org> | 2019-11-16 10:20:02 +0000 |
| commit | 09d31567f85b6cd0eddf28d90f7b83be09ee282b (patch) | |
| tree | 266f9c90ca0ab244f58b7ef6a82496268058ef2c /Documentation/devicetree | |
| parent | genirq: Introduce irq_chip_get/set_parent_state calls (diff) | |
| download | linux-dev-09d31567f85b6cd0eddf28d90f7b83be09ee282b.tar.xz linux-dev-09d31567f85b6cd0eddf28d90f7b83be09ee282b.zip | |
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
Diffstat (limited to 'Documentation/devicetree')
| -rw-r--r-- | Documentation/devicetree/bindings/interrupt-controller/interrupts.txt | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/interrupt-controller/interrupts.txt b/Documentation/devicetree/bindings/interrupt-controller/interrupts.txt index 4a3ee253f7f0..4ebfa0008781 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>; |