lkml.org 
[lkml]   [2017]   [Oct]   [13]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: [Patch 3/6] ARM: OMAP: DRA7xx: Make CAM clock domain SWSUP only
* Benoit Parrot <bparrot@ti.com> [171013 11:01]:
> Tony Lindgren <tony@atomide.com> wrote on Fri [2017-Oct-13 10:01:13 -0700]:
> > * Benoit Parrot <bparrot@ti.com> [171012 12:29]:
> > > HWSUP on this domain is only working when VIP1 probes.
> > > If only VIP2 on DRA74x or CAL on DRA72x probes the domain does
> > > not get enabled. This might indicates an issue in the HW Auto
> > > state-machine for this domain.
> > >
> > > Work around is to set the CAM domain to use SWSUP only.
> >
> > Hmm this you might get fixed automatically by configuring the
> > parent interconnect target module to use "ti,sysc-omap4" and
> > adding VIP1 and VIP2 as children to it.
> >
> > The reason why I suspect it will fix the issue is because
> > with the parent being "ti,sysc-omap4" with "ti,hwmods" being
> > in that parent node too, you automatically get PM runtime
> > refcounting keep the parent active for either child.
> >
> > Maybe give it a try against today's Linux next and see for
> > example how it was done for musb:
> >
> > https://patchwork.kernel.org/patch/9978783/
> >
> > Just use "ti,sysc-omap2" for type1 and "ti,sysc-omap4"
> > for type2.
>
> Hmm interesting, I'll give that a try and if it fixes it.

OK great. Note that you need to manually apply "[PATCH] ARM:
head-common.S: Clear lr before jumping to start_kernel()" on
today's next and make sure CONFIG_DRM and CONFIG_DRM_KMS_HELPER
are built-in and not modules if using them.

Regards,

Tony

\
 
 \ /
  Last update: 2017-10-13 20:03    [W:0.051 / U:0.928 seconds]
©2003-2018 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site