Re: [PATCH] [v2] pinctrl: meson: fix drive strength register and bit calculation

[Linus Walleij]

On Thu, Jun 18, 2020 at 4:59 AM Hyeonki Hong <hhk7734@xxxxxxxxx> wrote:

> If a GPIO bank has greater than 16 pins, PAD_DS_REG is split into two
> or more registers. However, when register and bit were calculated, the
> first register defined in the bank was used, and the bit was calculated
> based on the first pin. This causes problems in setting the driving
> strength.
>
> The following method was used to solve this problem:
> A bit is calculated first using predefined strides. Then, If the bit is
> 32 or more, the register is changed by the quotient of the bit divided
> by 32. And the bit is set to the remainder.
>
> Signed-off-by: Hyeonki Hong <hhk7734@xxxxxxxxx>

Patch applied.

Yours,
Linus Walleij