[Letux-kernel] Kernel v5.1-rc1 (was: LetuxOS Kernel v5.0-rc1)

Andreas Kemnade andreas at kemnade.info
Wed Mar 20 08:19:52 CET 2019


Hi,


On Tue, 19 Mar 2019 13:30:17 +0100
"H. Nikolaus Schaller" <hns at goldelico.com> wrote:

> > Am 19.03.2019 um 13:16 schrieb H. Nikolaus Schaller <hns at goldelico.com>:
> > 
> >   
> >> Am 19.03.2019 um 12:52 schrieb Andreas Kemnade <andreas at kemnade.info>:
> >> 
> >> On Mon, 18 Mar 2019 21:04:14 +0100
> >> H. Nikolaus Schaller <hns at goldelico.com> wrote:
> >>   
> >>> Hi,
> >>> I have now rebased our tree to v5.0-rc1. Was not very difficult. Just 3 or 4 almost obvious
> >>> minor merge conflicts.
> >>> 
> >>> Unfortunately there is always something broken afterwards...
> >>> 
> >>> This time it is the display of the GTA04 :(
> >>> Backlight works and can be controlled by "xset dpms" but the panel shows all white pixels.
> >>> Pyra and BeagleBoneBlack + LCD both work this time.
> >>> 
> >>> Some first observations from initial tests:
> >>> * Pyra:		bluetooth uart does not respond (wifi works)
> >>> * GTA04A4:	backlight ok, display shows white pixels only  
> >> 
> >> hmm, did a quick test with mainline: older dtb + 5.1-rc1 kernel = display ok
> >> 5.1-rc1 kernel + dtb-5-1-rc1 (both mainline) = black screen  
> > 
well,
echo 0 >/sys/class/backlight/backlight/bl_power
resolved that. Then I had a working display with mainline 5.1-rc1 + dtb-5.1-rc1

I think we are talking about different problems.
> > Interesting. I did this:
> > 
> > iMac:master hns$ git diff letux-5.0 letux-5.1-rc1 -- arch/arm/boot/dts/omap3-gta04.dtsi
> > iMac:master hns$ git diff letux-5.0 letux-5.1-rc1 -- arch/arm/boot/dts/omap3-gta04a4.dts 
> > iMac:master hns$ git diff letux-5.0 letux-5.1-rc1 -- arch/arm/boot/dts/omap3.dts 
> > iMac:master hns$ git diff letux-5.0 letux-5.1-rc1 -- arch/arm/boot/dts/omap36xx.dts 
> > iMac:master hns$
> > 
> > So there are no obvious differences between dts...
> > 
> > I think we have to use the dtc to disassemble the binaries (sorted by node) and then
> > diff.  
> 
> Hm...
> 
> Unless I did something wrong, the diff is empty!? Even the binaries do match:
> 
So maybe that is something in letux stuff. 

Regards,
Andreas
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