Re: [PATCH 3/4] pinctrl: remove slew-rate parameter from tz1090

[James Hogan <james.hogan@imgtec.com>]

On 25/06/13 14:32, Linus Walleij wrote:
> On Tue, Jun 25, 2013 at 3:27 PM, James Hogan <james.hogan@imgtec.com> wrote:
>> On 25/06/13 14:21, Heiko Stübner wrote:
> 
>>> My thoughts were that this code would never be reached when the parsing was
>>> removed and to not cause confusion to the driver when an acceptable binding
>>> was found for slew-rate.
>>>
>>> But it of course also doesn't hurt to stay in.
>>
>> Okay, fair enough.
>>
>> Acked-by: James Hogan <james.hogan@imgtec.com>
> 
> OK applied this so we have a clean slate.
> 
> Patches adding it back in with SI measures will be welcomed!

Okay.

So the most descriptive documentation I can find for the slew rate in
the TZ1090 pin config hardware is basically:

0: slow (half frequency)
1: fast

Sounds like this pretty much precludes it from having a generic DT
binding unless it can be mapped to some physical value, so I'll add a
tz1090,slew-rate and use PIN_CONFIG_END+1 instead of PIN_CONFIG_SLEW_RATE.

Anybody object to me adding an argument to
pinconf_generic_parse_dt_config() so that an additional
pinconf_generic_dt_params array can be optionally passed in? That way I
can share the generic pinconf dt parsing code.

Cheers
James