Re: [PATCH 1/1] gpio: mcp23s08: Add support for mcp23s18.

[Rob Herring <robh@xxxxxxxxxx>]

On Tue, Mar 01, 2016 at 02:25:41PM +0800, Phil Reid wrote:
> This patch adds support for the mcp23s18 which is very similar to
> the mcp23s17. A couple of control bits are not the same.
> Notable IOCON_HAEN (s17 only) & IOCON_INTCC. Which can be ignored.
> 
> Patch changes the following:
> - Add mcp23s18 types.
> - Always set mirror bit if the dts defines mcp23s18. regardless of type.
>   Mirror bit is ignored on 8 bit devices anyway.
> - In mcp23s08_probe use chip.ngpio instead of logic based on type
>   to determine number of gpio lins to increment by. This is set
>   appropiately by the call to mcp23s08_probe_one.
> - Add mcp23s18 to device tree documentation.
> - Remove statement that irqs don't work for spi. They do.
>   Tested with mcp23s18.
> 
> Signed-off-by: Phil Reid <preid@xxxxxxxxxxxxxxxxx>
> ---
>  .../devicetree/bindings/gpio/gpio-mcp23s08.txt        |  4 +---

Acked-by: Rob Herring <robh@xxxxxxxxxx>
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