From mboxrd@z Thu Jan 1 00:00:00 1970 From: Lina Iyer Subject: [PATCH RFC v2 05/14] of: irq: document properties for wakeup interrupt parent Date: Fri, 13 Sep 2019 15:59:13 -0600 Message-ID: <1568411962-1022-6-git-send-email-ilina@codeaurora.org> References: <1568411962-1022-1-git-send-email-ilina@codeaurora.org> Return-path: In-Reply-To: <1568411962-1022-1-git-send-email-ilina@codeaurora.org> Sender: linux-kernel-owner@vger.kernel.org To: swboyd@chromium.org, evgreen@chromium.org, maz@kernel.org, linus.walleij@linaro.org Cc: linux-kernel@vger.kernel.org, linux-arm-msm@vger.kernel.org, bjorn.andersson@linaro.org, mkshah@codeaurora.org, linux-gpio@vger.kernel.org, Lina Iyer , devicetree@vger.kernel.org List-Id: devicetree@vger.kernel.org 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 Reviewed-by: Rob Herring --- .../devicetree/bindings/interrupt-controller/interrupts.txt | 13 +++++++++++++ 1 file changed, 13 insertions(+) diff --git a/Documentation/devicetree/bindings/interrupt-controller/interrupts.txt b/Documentation/devicetree/bindings/interrupt-controller/interrupts.txt index 8a3c408..c10e310 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>; + -- The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum, a Linux Foundation Collaborative Project