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SubjectRe: [PATCH v3 1/3] dt-bindings: mfd: add lubbock-io binding
Date
Lee Jones <lee.jones@linaro.org> writes:

> On Fri, 16 Jan 2015, Robert Jarzmik wrote:
>
>> Add a binding for lubbock motherboard IO board.
>>
>> Signed-off-by: Robert Jarzmik <robert.jarzmik@free.fr>
>> ---
>> .../devicetree/bindings/mfd/lubbock-io.txt | 26 ++++++++++++++++++++++
>> 1 file changed, 26 insertions(+)
>> create mode 100644 Documentation/devicetree/bindings/mfd/lubbock-io.txt
>>
>> diff --git a/Documentation/devicetree/bindings/mfd/lubbock-io.txt b/Documentation/devicetree/bindings/mfd/lubbock-io.txt
>> new file mode 100644
>> index 0000000..33c9e21
>> --- /dev/null
>> +++ b/Documentation/devicetree/bindings/mfd/lubbock-io.txt
>> @@ -0,0 +1,26 @@
>> +Intel's pxa255 system development platform motherboard.
>
> s/pxa25/PXA25/
Ok.
>
> "system development platform motherboard" doesn't quite sit right with me.
>
> How about "Intel Xscale PXA255 development platform (Lubbock)"?
OK.

>
>> +This is the motherboard, or IO board, of the pxa25x development system,
>> +supporting a lubbock pxa25x SoC board.
>
> Again, this sounds weird.
Would it sound better with :
This regroups all the CPLDs on the Lubbock motherboard, providing interrupt
muxing, leds handling, ...
>
>> +Required properties:
>> + - compatible : One of the following chip-specific strings:
>> + "intel,lubbock-io"
>
> An odd thing to say with only one entry.
Right, a simple "should be" would fit better.
>
>> + - interrupts : The first interrupt is the line the /IRQ signal the IO board
>> + multiplex is connected to. The only known case is GPIO0 on the
>> + pxa25x SoC.
>
> Can you get someone to help you re-word this into a more fluid
> sentence?
Aouch, how about this :
interrupts : The first interrupt is the SoC input interrupt connected to the
lubbock IO board interrupt multiplexer output. The only known
working configuration is GPIO0 on the pxa25x SoC.

>
>> +Optional properties:
>> + - interrupts : The second optional interrupt is the base of the interrupts
>> + multiplexed by the lubbock motherboard. If unspecified, the
>> + range is fully dynamic, and the irqdomain will generate its
>> + interrupt base on the fly.
>> +
>> +Example:
>> +
>> +mb: lubbock-mb@0 {
>> + compatible = "intel,lubbock-io";
>> + interrupts = <0 IRQ_TYPE_EDGE_FALLING 400 IRQ_TYPE_NONE>;
>> + #interrupt-cells = <2>;
>> + interrupt-parent = <&pxairq>;
>
> Whitespace error.
Right.

> I'm guessing mb means motherboard? I think it's unusual for a
> motherboard to have it's own driver. Usually we provide drivers for
> the individual components/peripherals situated on the board.
Yes, mb for motherboard. Well, this driver is actually for the CPLDs on the
motherboard. Would "lubbock-cplds" be a better choice ?

Cheers.

--
Robert


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