[PATCH v3 04/11] ARM: bcm2835: dt: add bindings for shared interrupt properties

[Eric Anholt]

kernel at martin.sperl.org writes:

> From: Martin Sperl <kernel at martin.sperl.org>
>
> Add binding documentation for the new shared interrupt properties:
> * brcm,dma-channel-shared-mask
> * brcm,dma-shared-irq-index
>
> Signed-off-by: Martin Sperl <kernel at martin.sperl.org>
> ---
>  Documentation/devicetree/bindings/dma/brcm,bcm2835-dma.txt | 6 ++++++
>  1 file changed, 6 insertions(+)
>
> diff --git a/Documentation/devicetree/bindings/dma/brcm,bcm2835-dma.txt b/Documentation/devicetree/bindings/dma/brcm,bcm2835-dma.txt
> index 1396078..f9e84ee 100644
> --- a/Documentation/devicetree/bindings/dma/brcm,bcm2835-dma.txt
> +++ b/Documentation/devicetree/bindings/dma/brcm,bcm2835-dma.txt
> @@ -17,6 +17,10 @@ Required properties:
>  - brcm,dma-channel-mask: Bit mask representing the channels
>  			 not used by the firmware in ascending order,
>  			 i.e. first channel corresponds to LSB.
> +- brcm,dma-channel-shared-mask: Bit mask representing the channels
> +				that use a shared interrupt
> +- brcm,dma-shared-irq-index: index of which of the interrupts mentioned
> +			     above is the shared interrupt

This should be under "Optional properties" since there are appropriate
defaults for the only compatible string listed.

I still don't think exposing this in the DT is necessary (it's hardware
block internals), but I'm not writing the code so I'm fine with it
either way, really.  Regardless, it would be really good to get the
slave_sg part of the series in, which is really important for the
platform.
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