No progress on using the 7'' official touchscreen with the RPi

Roland Krause rkrause at ics.com
Thu Aug 18 10:55:25 EDT 2016


Leon - thanks for sending this note.
Changhyeok and Tom - thanks for making this happen. What a big step
forward!

I will be building an image this week and will give it a spin over the
weekend. My plan is to use the RPi with the 7'' touchscreen for the hands
on.

Best Regards
Roland



On Thu, Aug 18, 2016 at 7:52 AM, Leon Anavi <leon.anavi at konsulko.com> wrote:

> Hi Tom, Changhyeok, Roland,
>
> For the record, as of today the official 7" touch screen display is with
> GDP (built from branch master) on both Raspberry Pi 2 and 3. I have built
> an image from scratch and tested in successfully on both boards.
>
> Tom, Changhyeok, well done! Raspberry Pi is probably the most popular
> single board computer and for the community it is great to have its
> touchscreen working :)
>
> Best regards, Leon
> On 5.04.2016 16:40, Roland Krause wrote:
>
> Tom.
>
> On Tue, Apr 5, 2016 at 12:37 AM, Tom Pollard <tom.pollard at codethink.co.uk>
> wrote:
>
>> Hi Roland hope you are well,
>>
>> a bit of a sleepless night over this but I am used to that.
>
>
>> > On Mon, Apr 4, 2016 at 5:02 PM, Roland Krause <rkrause at ics.com
>> > <mailto:rkrause at ics.com>> wrote:
>> >
>> >     So I've tried out a build where i tried to follow this blog post
>> >     http://blog.unixshell.se/?p=27
>>
>> Looking at the guide briefly it looks like you need to clone and include
>> his layer to follow the guide:
>>
>> git clone https://github.com/erikboto/meta-erborpi.git
>>
>> In that layer, he has a patch dir in which there is a patch that looks
>> to alter the path to the dtb overlays and adds
>> overlays/rpi-ft5406-overlay.dtb which I guess would then allow bitbake
>> to handle the specified dtb. It also looks like he has bsp boot config
>> append to update config.txt.
>>
>> Sorry if I've misunderstood your current process at all,
>>
> I tried to adopt this without using his specific layer - just to get the
> ft5406 dtb but I failed.
>
> My request is that someone more knowledgeable that I in Yocto please adopt
> this and add the rpi_ft5406 module to
> the current raspberrry pi branch.
>
> However, yesterday very late I did end up with the module being loaded but
> weston fails to start. What I did was manually updating
> some of the firmware using the rpi-update script.
>
> However I noticed that our boot structure is different than the script
> assumes. For some reason our kernel is not on the boot partitions
> /dev/mmcblk0p1 but on /dev/mmcblk0p2 !
>
> So many things are really strange, super hard to do and non-standard - if
> feels like swimming agains the stream -
> wow !
>
> Roland
>
>
>> Tom
>>
>>
>> >     that has some hints and ideas on how to get the official ts to work
>> >     with a yocto build but I can not get the rpi_ft5406 driver to show
>> >     up in any kernel logs, or as an input device.
>> >
>> >     It looks like I am  missing rpi-ft5406-overlay.dtb
>> >     And if i try following the directions from the blog and do a
>> >     echo 'KERNEL_DEVICETREE_append = " overlays/rpi-ft5406-overlay.
>> dtb"'
>> >     >> conf/local.conf22:28
>> >     rokrau_then bitbake fails22:28
>> >     rokrau_| make[3]: *** No rule to make target
>> >     `arch/arm/boot/dts/overlays/rpi-ft5406-overlay.dtb'.  Stop.
>> >
>>
>
>
> _______________________________________________
> genivi-projects mailing listgenivi-projects at lists.genivi.orghttps://lists.genivi.org/mailman/listinfo/genivi-projects
>
>
> --
> Leon Anavi
> Software Engineerkonsulko.com
>
>
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