From mboxrd@z Thu Jan 1 00:00:00 1970 From: marc.zyngier@arm.com (Marc Zyngier) Date: Wed, 7 Jan 2015 17:42:48 +0000 Subject: [PATCH v2 13/21] DT: omap4/5: add binding for the wake-up generator In-Reply-To: <1420652576-22309-1-git-send-email-marc.zyngier@arm.com> References: <1420652576-22309-1-git-send-email-marc.zyngier@arm.com> Message-ID: <1420652576-22309-14-git-send-email-marc.zyngier@arm.com> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org Signed-off-by: Marc Zyngier --- .../interrupt-controller/ti,omap4-wugen-mpu | 32 ++++++++++++++++++++++ 1 file changed, 32 insertions(+) create mode 100644 Documentation/devicetree/bindings/interrupt-controller/ti,omap4-wugen-mpu diff --git a/Documentation/devicetree/bindings/interrupt-controller/ti,omap4-wugen-mpu b/Documentation/devicetree/bindings/interrupt-controller/ti,omap4-wugen-mpu new file mode 100644 index 0000000..16149d9 --- /dev/null +++ b/Documentation/devicetree/bindings/interrupt-controller/ti,omap4-wugen-mpu @@ -0,0 +1,32 @@ +TI OMAP4 Wake-up Generator + +All TI OMAP4/5 (and their derivatives) an interrupt controllerthat +routes interrupts to the GIC, and also serves as a wakeup source. It +is also refered to as "WUGEN-MPU", hence the name of the binding. + +Reguired properties: + +- compatible : should contain at least "ti,omap4-wugen-mpu" +- reg : Specifies base physical address and size of the registers. +- interrupt-controller : Identifies the node as an interrupt controller. +- #interrupt-cells : Specifies the number of cells needed to encode an + interrupt source. The value must be 3. +- interrupt-parent : a phandle to the GIC these interrupts are routed + to. + +Notes: + +- Because this HW ultimately routes interrupts to the GIC, the + interrupt specifier must be that of the GIC. +- Only SPIs can use the ictlr as an interrupt parent. SGIs and PPIs + are explicitely forbiden. + +Example: + + wakeupgen: interrupt-controller at 48281000 { + compatible = "ti,omap5-wugen-mpu", "ti,omap4-wugen-mpu"; + interrupt-controller; + #interrupt-cells = <3>; + reg = <0x48281000 0x1000>; + interrupt-parent = <&gic>; + }; -- 2.1.4