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SubjectRe: [PATCH 3/3] gpio-vx855: Add device tree binding
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On Wed, Sep 21, 2011 at 1:50 PM, Mark Brown
<broonie@opensource.wolfsonmicro.com> wrote:
> On Wed, Sep 21, 2011 at 01:02:14PM +0100, Daniel Drake wrote:
>
>> +- #gpio-cells : Should be two. The first cell is the pin number and the
>> +  second cell is used to specify optional parameters:
>> +  - bit 0 specifies polarity (0 for normal, 1 for inverted)
>
> Shouldn't we just have a property for the polarity?

Can't comment on the general design, but the way it is
described/implemented in the patch is consistent with GPIO controllers
in general in the kernel. e.g. its the same as gpio_nvidia, and it is
then driven by the generic gpio/dt code rather than having to
implement extra stuff in the vx855 driver.

Daniel
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