Re: [PATCH 1/2] pinmux: Add TB10x pinmux driver

[Stephen Warren]

On 05/08/2013 10:41 AM, Christian Ruppert wrote:
...
> What do you think about the following modification to the pinctrl/GPIO
> frameworks instead (not yet a formal patch, more a request for comment
> to illustrate what I mean. If you agree, I will clean it up and submit a
> proper patch after discussion).
> 
> It adds a dt_gpiorange_xlate function to the pinctrl callbacks which
> defaults to the conventional behaviour using kernel logical pin numbers.
> However, pin controllers which provide more complex mechanisms can
> define #gpio-range-cells and provide this callback in order to keep
> Linux pin numbering inside the kernel.

Can you provide an example of the DT content, and explain exactly what
this patch does with it; what effect it has on the existing GPIO or
pinctrl code?
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