[U-Boot] [PATCH 3/3] pwm: sunxi: choose best prescaler to improve PWM resolution

[Jagan Teki]

On Wed, Oct 17, 2018 at 10:28 AM Vasily Khoruzhick <anarsoul at gmail.com> wrote:
>
> Choose best prescaler to improve PWM resolution. Without this change
> driver chooses first prescaler that gives us period value within
> range, but it could be not the best one.

This commit need to elaborate about the real issue, ie got fixed.
Understand it has chosen best prescaler but why and how it.