[PATCH] ARM: dts: AM35xx: fix system control module clocks

Paul Walmsley paul at pwsan.com
Mon Jun 1 10:44:11 PDT 2015


On Mon, 1 Jun 2015, Tony Lindgren wrote:

> * Jeroen Hofstee <linux-arm at myspectrum.nl> [150601 09:58]:
> > On 01-06-15 17:30, Tero Kristo wrote:
> > >New system control module layout for omap3 overlooked parts of the am35xx
> > >configuration. Basically the am35xx clocks were not converted to use the
> > >changed offsets, which caused weird boot warnings. The errors were not
> > >fatal so far, so they were not caught earlier. Fixed by applying the
> > >proper offsets for the AM35xx scm clocks.
> > >
> > >Fixes: b8845074cf ("ARM: dts: omap3: add minimal l4 bus layout with...")
> > >
> > >Signed-off-by: Tero Kristo <t-kristo at ti.com>
> > >Reported-by: Jeroen Hofstee <linux-arm at myspectrum.nl>
> > >Cc: Paul Walmsley <paul at pwsan.com>
> > >Cc: Tony Lindgren <tony at atomide.com>
> > >---
> > >  arch/arm/boot/dts/am35xx-clocks.dtsi |   14 +++++++-------
> > >  1 file changed, 7 insertions(+), 7 deletions(-)
> > With this patch the error interrupt / stack dumps are no longer present.
> > 
> > Thanks,
> > 
> > Tested-by: Jeroen Hofstee <jeroen at myspectrum.nl>
> 
> Thanks, I'm suprised this was not caught earlier with all the automated
> boot testing going on?

At least speaking in terms the testbed results that I post, the warnings 
get reported.  But not many people seem to act on them.  (Jeroen is a 
pleasant exception.)

See for example the "Build warnings from toolchain", "Kernel warnings 
during boot to userspace", "Kernel warnings during PM test", and "Obsolete 
Kconfig symbols" sections here:

http://www.pwsan.com/omap/testlogs/test_v4.1-rc6/20150601012139/README.txt


The best way to make this work IMHO would be for us not to accept any new 
feature addition patches as long as there are warnings reported in the 
test results.  The only real exception that I would foresee is if those 
warnings are due to something outside of our control, e.g., a crappy 
bootloader, as I suspect the USB_OTG initiator warnings are for the 
CM-T3517.


- Paul



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