| Message ID | 20190203214205.13594-10-linus.walleij@linaro.org |
|---|---|
| State | New |
| Headers | show |
| Series | None | expand |
On Sun, Feb 3, 2019 at 3:42 PM Linus Walleij <linus.walleij@linaro.org> wrote: > > This adds device tree bindings for the IXP4xx interrupt > controller. It's a standard 2-cell controller. Not required, but writing as a schema would be great. Looks like it would be straight forward. > Cc: Marc Zyngier <marc.zyngier@arm.com> > Cc: Jason Cooper <jason@lakedaemon.net> > Cc: Thomas Gleixner <tglx@linutronix.de> > Cc: devicetree@vger.kernel.org > Signed-off-by: Linus Walleij <linus.walleij@linaro.org> > --- > irqchip maintainers: I am requesting an ACK for this once > you're happy with the bindings, as I intend to merge all of > this IXP4xx rework through ARM SoC. > --- > .../intel,ixp4xx-interrupt.txt | 33 +++++++++++++++++++ > MAINTAINERS | 1 + > 2 files changed, 34 insertions(+) > create mode 100644 Documentation/devicetree/bindings/interrupt-controller/intel,ixp4xx-interrupt.txt > > diff --git a/Documentation/devicetree/bindings/interrupt-controller/intel,ixp4xx-interrupt.txt b/Documentation/devicetree/bindings/interrupt-controller/intel,ixp4xx-interrupt.txt > new file mode 100644 > index 000000000000..70ee93b9a6c0 > --- /dev/null > +++ b/Documentation/devicetree/bindings/interrupt-controller/intel,ixp4xx-interrupt.txt > @@ -0,0 +1,33 @@ > +* Intel IXP4xx XScale Networking Processors Interrupt Controller > + > +This interrupt controller is found in the Intel IXP4xx processors. > +Some processors have 32 interrupts, some have up to 64 interrupts. > +The exact number of interrupts is determined from the compatible > +string. > + > +The distinct IXP4xx families with different interrupt controller > +variations are IXP42x, IXP43x, IXP45x and IXP46x. Those four > +families were the only ones to reach the developer and consumer > +market. > + > +Required properties: > +- compatible: must be one of > + "intel,ixp42x-interrupt" > + "intel,ixp43x-interrupt" > + "intel,ixp45x-interrupt" > + "intel,ixp46x-interrupt" While we normally don't allow wildcards, I'm guessing this is all so old^W mature that it will be fine. Reviewed-by: Rob Herring <robh@kernel.org>
diff --git a/Documentation/devicetree/bindings/interrupt-controller/intel,ixp4xx-interrupt.txt b/Documentation/devicetree/bindings/interrupt-controller/intel,ixp4xx-interrupt.txt new file mode 100644 index 000000000000..70ee93b9a6c0 --- /dev/null +++ b/Documentation/devicetree/bindings/interrupt-controller/intel,ixp4xx-interrupt.txt @@ -0,0 +1,33 @@ +* Intel IXP4xx XScale Networking Processors Interrupt Controller + +This interrupt controller is found in the Intel IXP4xx processors. +Some processors have 32 interrupts, some have up to 64 interrupts. +The exact number of interrupts is determined from the compatible +string. + +The distinct IXP4xx families with different interrupt controller +variations are IXP42x, IXP43x, IXP45x and IXP46x. Those four +families were the only ones to reach the developer and consumer +market. + +Required properties: +- compatible: must be one of + "intel,ixp42x-interrupt" + "intel,ixp43x-interrupt" + "intel,ixp45x-interrupt" + "intel,ixp46x-interrupt" +- reg: The register bank for the interrupt controller. +- interrupt-controller: Identifies the node as an interrupt controller +- #interrupt-cells: The number of cells to define the interrupts. + Must be <2>. The bindings follows the standard binding for controllers + with two cells specified in + interrupt-controller/interrupts.txt + +Example: + +intcon: interrupt-controller@c8003000 { + compatible = "intel,ixp43x-interrupt"; + reg = <0xc8003000 0x100>; + interrupt-controller; + #interrupt-cells = <2>; +}; diff --git a/MAINTAINERS b/MAINTAINERS index a2fb67b75026..ec318f09540c 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -1650,6 +1650,7 @@ M: Imre Kaloz <kaloz@openwrt.org> M: Krzysztof Halasa <khalasa@piap.pl> L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers) S: Maintained +F: Documentation/devicetree/bindings/interrupt-controller/intel,ixp4xx-interrupt.txt F: arch/arm/mach-ixp4xx/ F: drivers/clocksource/timer-ixp4xx.c F: drivers/gpio/gpio-ixp4xx.c
This adds device tree bindings for the IXP4xx interrupt controller. It's a standard 2-cell controller. Cc: Marc Zyngier <marc.zyngier@arm.com> Cc: Jason Cooper <jason@lakedaemon.net> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: devicetree@vger.kernel.org Signed-off-by: Linus Walleij <linus.walleij@linaro.org> --- irqchip maintainers: I am requesting an ACK for this once you're happy with the bindings, as I intend to merge all of this IXP4xx rework through ARM SoC. --- .../intel,ixp4xx-interrupt.txt | 33 +++++++++++++++++++ MAINTAINERS | 1 + 2 files changed, 34 insertions(+) create mode 100644 Documentation/devicetree/bindings/interrupt-controller/intel,ixp4xx-interrupt.txt -- 2.20.1