Re: [PATCHv4 1/2] dts: Adding docs for Xilinx LogiCORE IP mailbox driver.

[Josh Cartwright]

On Mon, Jun 01, 2015 at 09:18:26AM -0700, Moritz Fischer wrote:
> Changes from v3:
> - Changed reg size to 0x100
> 
> Changes from v2:
> - Addressed Michal's stylistic comments
> - Fixed typo in compatible string
> 
> Changes from v1:
> - Added common clock framework support
> 
> Changes from v0:
> - Fixed example bindings
> 
> Signed-off-by: Moritz Fischer <moritz.fischer@xxxxxxxxx>
> Acked-by: Michal Simek <michal.simek@xxxxxxxxxx>
> ---
>  .../bindings/mailbox/xilinx-mailbox.txt         | 44 ++++++++++++++++++++
>  1 file changed, 44 insertions(+)
> 
> diff --git a/Documentation/devicetree/bindings/mailbox/xilinx-mailbox.txt b/Documentation/devicetree/bindings/mailbox/xilinx-mailbox.txt
> new file mode 100644
> index 0000000..f9ec46d
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/mailbox/xilinx-mailbox.txt
> @@ -0,0 +1,44 @@
> +Xilinx Mailbox Driver
> +=====================
> +
> +Required properties:
> +- compatible       : "xlnx,mailbox-2.1".
> +- reg              :  physical base address of the mailbox and length of
> +                      memory mapped region.
> +- #mbox-cells      :  common mailbox binding property to identify the number
> +                      of cells required for the mailbox specifier, should be 1

It seems strange to me to require #mbox-cells = <1>, when this hardware
only supports a single channel.  Why not #mbox-cells = <0>; ?

  Josh

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