On Mon, Feb 15, 2016 at 08:42:42AM +0100, Thomas Petazzoni wrote:
> This commits adds a new irqchip driver that handles the ODMI
> controller found on Marvell 7K/8K processors. The ODMI controller
> provide MSI interrupt functionality to on-board peripherals, much like
> the GIC-v2m.
>
> Signed-off-by: Thomas Petazzoni <thomas.petazzoni@xxxxxxxxxxxxxxxxxx>
> ---
> .../marvell,odmi-controller.txt | 36 +++
> drivers/irqchip/Kconfig | 4 +
> drivers/irqchip/Makefile | 1 +
> drivers/irqchip/irq-mvebu-odmi.c | 270 +++++++++++++++++++++
> 4 files changed, 311 insertions(+)
> create mode 100644 Documentation/devicetree/bindings/interrupt-controller/marvell,odmi-controller.txt
> create mode 100644 drivers/irqchip/irq-mvebu-odmi.c
>
> diff --git a/Documentation/devicetree/bindings/interrupt-controller/marvell,odmi-controller.txt b/Documentation/devicetree/bindings/interrupt-controller/marvell,odmi-controller.txt
> new file mode 100644
> index 0000000..a2470af
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/interrupt-controller/marvell,odmi-controller.txt
> @@ -0,0 +1,36 @@
> +
> +* Marvell ODMI for MSI support
> +
> +Some Marvell SoCs have an On-Die Message Interrupt (ODMI) controller
> +which can be used by on-board peripheral for MSI interrupts.
> +
> +Required properties:
> +
> +- compatible : The value here should contain "marvell,odmi-controller".
SoC specific compatible too please.
> +
> +- interrupt,controller : Identifies the node as an interrupt controller.
> +
> +- msi-controller : Identifies the node as an MSI controller.
> +
> +- marvell,odmi-frames : Number of ODMI frames available. Each frame
> + provides a number of events.
> +
> +- reg : List of register definitions, one for each
> + ODMI frame.
> +
> +- marvell,spi-base : List of GIC base SPI interrupts, one for each
> + ODMI frame.
Why not "interrupts" property?
> +
> +Example:
> +
> + odmi: odmi@300000 {
> + compatible = "marvell,odmi-controller";
> + interrupt-controller;
> + msi-controller;
> + marvell,odmi-frames = <4>;
> + reg = <0x300000 0x4000>,
> + <0x304000 0x4000>,
> + <0x308000 0x4000>,
> + <0x30C000 0x4000>;
> + marvell,spi-base = <128>, <136>, <144>, <152>;
> + };
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