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From: Lina Iyer <ilina@codeaurora.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 <ilina@codeaurora.org>,
	devicetree@vger.kernel.org
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> (raw)
In-Reply-To: <1568411962-1022-1-git-send-email-ilina@codeaurora.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 <ilina@codeaurora.org>
Reviewed-by: Rob Herring <robh@kernel.org>
---
 .../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


  parent reply index

Thread overview: 15+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-09-13 21:59 [PATCH RFC v2 00/14] Support wakeup capable GPIOs Lina Iyer
2019-09-13 21:59 ` [PATCH RFC v2 01/14] irqdomain: add bus token DOMAIN_BUS_WAKEUP Lina Iyer
2019-09-13 21:59 ` [PATCH RFC v2 02/14] drivers: irqchip: qcom-pdc: update max PDC interrupts Lina Iyer
2019-09-13 21:59 ` [PATCH RFC v2 03/14] drivers: irqchip: pdc: Do not toggle IRQ_ENABLE during mask/unmask Lina Iyer
2019-09-13 21:59 ` [PATCH RFC v2 04/14] drivers: irqchip: add PDC irqdomain for wakeup capable GPIOs Lina Iyer
2019-09-13 21:59 ` Lina Iyer [this message]
2019-09-13 21:59 ` [PATCH RFC v2 06/14] dt-bindings/interrupt-controller: pdc: add SPI config register Lina Iyer
2019-09-13 21:59 ` [PATCH RFC v2 07/14] drivers: irqchip: pdc: additionally set type in SPI config registers Lina Iyer
2019-09-13 21:59 ` [PATCH RFC v2 08/14] genirq: Introduce irq_chip_get/set_parent_state calls Lina Iyer
2019-09-13 21:59 ` [PATCH RFC v2 09/14] drivers: irqchip: pdc: Add irqchip set/get state calls Lina Iyer
2019-09-13 21:59 ` [PATCH RFC v2 10/14] drivers: pinctrl: msm: setup GPIO chip in hierarchy Lina Iyer
2019-09-13 21:59 ` [PATCH RFC v2 11/14] drivers: pinctrl: sdm845: add PDC wakeup interrupt map for GPIOs Lina Iyer
2019-09-13 21:59 ` [PATCH RFC v2 12/14] arm64: dts: qcom: add PDC interrupt controller for SDM845 Lina Iyer
2019-09-13 21:59 ` [PATCH RFC v2 13/14] arm64: dts: qcom: setup PDC as the wakeup parent for TLMM on SDM845 Lina Iyer
2019-09-13 21:59 ` [PATCH RFC v2 14/14] arm64: defconfig: enable PDC interrupt controller for Qualcomm SDM845 Lina Iyer

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