linux-kernel - Re: [PATCH 2/6] Documentation: bindings: document the Alpine MSIX driver

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Date:	Mon, 8 Feb 2016 14:55:57 +0000
From:	Marc Zyngier <marc.zyngier@....com>
To:	Antoine Tenart <antoine.tenart@...e-electrons.com>,
	tglx@...utronix.de, jason@...edaemon.net, tsahee@...apurnalabs.com
Cc:	rshitrit@...apurnalabs.com, thomas.petazzoni@...e-electrons.com,
	linux-arm-kernel@...ts.infradead.org, devicetree@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH 2/6] Documentation: bindings: document the Alpine MSIX
 driver

On 08/02/16 09:16, Antoine Tenart wrote:
> Following the addition of the Alpine MSIX driver, this patch adds the
> corresponding bindings documentation.
> 
> Signed-off-by: Antoine Tenart <antoine.tenart@...e-electrons.com>
> Signed-off-by: Tsahee Zidenberg <tsahee@...apurnalabs.com>
> ---
>  .../interrupt-controller/al,alpine-msix.txt        | 22 ++++++++++++++++++++++
>  1 file changed, 22 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/interrupt-controller/al,alpine-msix.txt
> 
> diff --git a/Documentation/devicetree/bindings/interrupt-controller/al,alpine-msix.txt b/Documentation/devicetree/bindings/interrupt-controller/al,alpine-msix.txt
> new file mode 100644
> index 000000000000..a77d5a76e8d5
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/interrupt-controller/al,alpine-msix.txt
> @@ -0,0 +1,22 @@
> +Alpine MSIX controller
> +
> +Required properties:
> +
> +- compatible: should be "al,alpine-msix"
> +- reg: physical base address and size of the registers
> +- interrupt-controller: identifies the node as an interrupt controller
> +- msi-controller: identifies the node as an PCI Message Signaled Interrupt
> +		  controller
> +- al,msi-base-spi: SPI base of the MSI frame
> +- al,msi-num-spis: number of SPIs assigned to the MSI frame
> +
> +Example:
> +
> +msix: msix {
> +	compatible = "al,alpine-msix";
> +	reg = <0x0 0xfbe00000 0x0 0x100000>;
> +	interrupt-controller;
> +	msi-controller;
> +	al,msi-base-spi = <160>;
> +	al,msi-num-spis = <160>;
> +};
> 

This example seems to rely on an implicit interrupt-parent. You probably
want to update the example to clarify it.

Thanks,

	M.
-- 
Jazz is not dead. It just smells funny...