From mboxrd@z Thu Jan 1 00:00:00 1970 From: Max Filippov Subject: [PATCH 1] irqchip: xtensa-pic: xtensa-mx: document DT bindings Date: Tue, 7 Oct 2014 00:52:01 +0400 Message-ID: <1412628721-4394-1-git-send-email-jcmvbkbc@gmail.com> Return-path: Sender: devicetree-owner-u79uwXL29TY76Z2rM5mHXA@public.gmane.org To: linux-xtensa-PjhNF2WwrV/0Sa2dR60CXw@public.gmane.org Cc: devicetree-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, Chris Zankel , Marc Gauthier , Rob Herring , Pawel Moll , Mark Rutland , Ian Campbell , Kumar Gala , Max Filippov List-Id: devicetree@vger.kernel.org Signed-off-by: Max Filippov --- .../interrupt-controller/cdns,xtensa-mx.txt | 18 ++++++++++++++++ .../interrupt-controller/cdns,xtensa-pic.txt | 25 ++++++++++++++++++++++ 2 files changed, 43 insertions(+) create mode 100644 Documentation/devicetree/bindings/interrupt-controller/cdns,xtensa-mx.txt create mode 100644 Documentation/devicetree/bindings/interrupt-controller/cdns,xtensa-pic.txt diff --git a/Documentation/devicetree/bindings/interrupt-controller/cdns,xtensa-mx.txt b/Documentation/devicetree/bindings/interrupt-controller/cdns,xtensa-mx.txt new file mode 100644 index 0000000..d4de980 --- /dev/null +++ b/Documentation/devicetree/bindings/interrupt-controller/cdns,xtensa-mx.txt @@ -0,0 +1,18 @@ +* Xtensa Interrupt Distributor and Programmable Interrupt Controller (MX) + +Required properties: +- compatible: Should be "cdns,xtensa-mx". + +Remaining properties have exact same meaning as in Xtensa PIC +(see cdns,xtensa-pic.txt). + +Examples: + pic: pic { + compatible = "cdns,xtensa-mx"; + /* one cell: internal irq number, + * two cells: second cell == 0: internal irq number + * second cell == 1: external irq number + */ + #interrupt-cells = <2>; + interrupt-controller; + }; diff --git a/Documentation/devicetree/bindings/interrupt-controller/cdns,xtensa-pic.txt b/Documentation/devicetree/bindings/interrupt-controller/cdns,xtensa-pic.txt new file mode 100644 index 0000000..026ef4c --- /dev/null +++ b/Documentation/devicetree/bindings/interrupt-controller/cdns,xtensa-pic.txt @@ -0,0 +1,25 @@ +* Xtensa built-in Programmable Interrupt Controller (PIC) + +Required properties: +- compatible: Should be "cdns,xtensa-pic". +- interrupt-controller: Identifies the node as an interrupt controller. +- #interrupt-cells: The number of cells to define the interrupts. + It may be either 1 or 2. + When it's 1, the first cell is the internal IRQ number. + When it's 2, the first cell is the IRQ number, and the second cell + specifies whether it's internal (0) or external (1). + Periferals are usually connected to a fixed external IRQ, but for different + core variants it may be mapped to different internal IRQ. + IRQ sensitivity and priority are fixed for each core variant and may not be + changed at runtime. + +Examples: + pic: pic { + compatible = "cdns,xtensa-pic"; + /* one cell: internal irq number, + * two cells: second cell == 0: internal irq number + * second cell == 1: external irq number + */ + #interrupt-cells = <2>; + interrupt-controller; + }; -- 1.8.1.4 -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo-u79uwXL29TY76Z2rM5mHXA@public.gmane.org More majordomo info at http://vger.kernel.org/majordomo-info.html