On Thu, May 20, 2021 at 10:27 PM Dario Binacchi [off-list ref] wrote:

The patch was born from the need to change the slew rate of the LCD pins
of a custom AM335x board during EMC tests. The AM335x, as described in a
note in section 9.1 of its reference manual [1], is unable to write
pinmux registers from user space. The series now makes it possible to
write these registers from the pins debug file.

I am going to hold this series back pending more discussion on the ABI
and whether it is useful.

Yours,
Linus Walleij