[Linux-stm32] [PATCH] [RFC] mmc: mmci: Add support for probing bus voltage level translator

[Linus Walleij]

On Thu, Jan 14, 2021 at 11:13 AM Yann GAUTIER <yann.gautier at foss.st.com> wrote:
> On 1/13/21 3:45 PM, Marek Vasut wrote:
> > On 1/13/21 3:21 PM, Yann GAUTIER wrote:
> >> On 1/13/21 12:52 PM, Marek Vasut wrote:

> >> I also wonder if this HW detection should be done in kernel, or if it
> >> should be done in Bootloader. But it may be more complex, to add the
> >> st,use_ckin in kernel DT if bootloader detects this translator.
> >
> > Lets not attempt to hide inobvious functionality in bootloaders, the
> > kernel should be independent of bootloader where possible. And here it
> > is clearly and easily possible.
>
> OK for this part, I understand it will be better not to hide this in
> bootloader.

We all agree. I am against bootloaderism, the tendency to toss all
complex hardware detection over the wall and call it
a bootloader problem.

Let's proceed with Marek's solution.

Yours,
Linus Walleij