On Mon, Oct 22, 2018 at 11:29 AM Jagan Teki <ja...@amarulasolutions.com> wrote: > > On Wed, Oct 17, 2018 at 10:28 AM Vasily Khoruzhick <anars...@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.
If PWM resolution is low then close backlight levels can result in the same PWM settings, i.e. 0% and 10% can be the same (and thus backlight remains powered off). Basically the patch does what comment says - it improves PWM resolution. _______________________________________________ U-Boot mailing list U-Boot@lists.denx.de https://lists.denx.de/listinfo/u-boot
