[PATCH v10 1/2] dt-bindings: pinctrl: mt8195: add rsel define

[zhiyong.tao]

On Mon, 2021-08-16 at 14:10 +0800, Chen-Yu Tsai wrote:
> On Thu, Aug 5, 2021 at 7:02 AM Linus Walleij <
> linus.walleij at linaro.org> wrote:
> > 
> > On Thu, Jul 29, 2021 at 11:43 AM Chen-Yu Tsai <wenst at chromium.org>
> > wrote:
> > > On Thu, Jul 29, 2021 at 4:23 PM zhiyong.tao <
> > > zhiyong.tao at mediatek.com> wrote:
> > > > The rsel actual bias resistance of each setting is different in
> > > > different IC. we think that the define "MTK_PULL_SET_RSEL_000"
> > > > is more
> > > > common for all different IC.
> > > 
> > > I see. I personally prefer having things clearly described. I can
> > > understand this might be an extra burden to support different
> > > chips
> > > with different parameters, though this should be fairly
> > > straightforward
> > > with lookup tables tied to the compatible strings.
> > > 
> > > Let's see if Rob and Linus have anything to add.
> > 
> > Not much. We have "soft pushed" for this to be described as generic
> > as possible, using SI units (ohms). But we also allow vendor-
> > specific
> > numbers in this attribute. Especially when reverse engineering SoCs
> > that the contributor don't really have specs on (example M1 Mac).
> > 
> > The intent with the SI units is especially for people like you
> > folks working
> > with Chromium to be able to use different SoCs and not feel lost
> > to a forest of different ways of doing things and associated
> > mistakes because vendors have hopelessly idiomatic pin configs.
> 
> I'll take that as "use SI units whenever possible and reasonable".

==> so It doesn't need to change the define, is it right? 
we will keep the common define.

Thanks.
> 
> Thanks.
> 
> ChenYu