lkml.org 
[lkml]   [2019]   [Jul]   [1]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
From
SubjectRe: [PATCH 1/5] clk: inherit clocks enabled by bootloader
Date
Rob Clark <robdclark@gmail.com> writes:

> From: Rob Clark <robdclark@chromium.org>
>
> The goal here is to support inheriting a display setup by bootloader,
> although there may also be some non-display related use-cases.
>
> Rough idea is to add a flag for clks and power domains that might
> already be enabled when kernel starts, and which should not be
> disabled at late_initcall if the kernel thinks they are "unused".
>
> If bootloader is enabling display, and kernel is using efifb before
> real display driver is loaded (potentially from kernel module after
> userspace starts, in a typical distro kernel), we don't want to kill
> the clocks and power domains that are used by the display before
> userspace starts.
>
> Signed-off-by: Rob Clark <robdclark@chromium.org>

Raspberry Pi is carrying downstream hacks to do similar stuff, and it
would be great to see CCF finally support this.
[unhandled content-type:application/pgp-signature]
\
 
 \ /
  Last update: 2019-07-01 20:26    [W:0.328 / U:0.792 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site