[U-Boot] [PATCH] tegra: implement pinmux_avoid_func()

[Simon Glass]

Hi Stephen,

On Tue, Jan 22, 2013 at 1:26 PM, Stephen Warren <swarren at wwwdotorg.org> wrote:
> On 01/22/2013 02:13 PM, Simon Glass wrote:
>> Hi Stephen,
>>
>> On Tue, Jan 22, 2013 at 8:21 AM, Stephen Warren <swarren at wwwdotorg.org> wrote:
>>> From: Stephen Warren <swarren at nvidia.com>
>>>
>>> This selects the "safe" (non-conflicting) mux function for a pin group
>>> if the current setting matches the specified function.
>>>
>>> Many signals can be routed to or from multiple different groups. Each
>>> signal must be routed to or from only a single group at a given time.
>>> Hence, if we program a particular group for a function, we must ensure
>>> no other group is programmed to that same function first. This API
>>> makes this easy.
>>
>> What is the intended use of this function? (sorry, yes, I am confused :-)
>
> It's a safer way of doing this:
> "tegra: pinmux: fix FUNCMUX_NDFLASH_KBC_8_BIT"
> http://lists.denx.de/pipermail/u-boot/2013-January/144612.html
>
> i.e. it address the concerns I raised here:
> http://lists.denx.de/pipermail/u-boot/2013-January/144713.html
>

OK thank you. So is your function only intended for use with T20?

Regards,
Simon