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From: Bremenpl <bremenpl@gmail.com>
To: Jon Cormier <jcormier@criticallink.com>
Cc: <meta-ti@lists.yoctoproject.org>
Subject: Re: [meta-ti] [kirkstone] libgpiod-tools gpioinfo missing for beaglebone
Date: Sat, 13 Jan 2024 10:23:06 +0100	[thread overview]
Message-ID: <18d0221c8a8.284e.a291efdfec6f8802d64589cd992131fb@gmail.com> (raw)
In-Reply-To: <17A9934C6E495BDF.31870@lists.yoctoproject.org>

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Hi Jon,
Robert confirmed your findngs and already pushed the changes to another 
repo (I guess pipelined). Still figuring out how to sync it with the 
kirkstone repo. Thanks for your help!

https://forum.beagleboard.org/t/libgpiod-tools-gpioinfo-missing-for-beaglebone/37086/2


On January 12, 2024 11:38:11 "Lukasz Przenioslo via lists.yoctoproject.org" 
<bremenpl=gmail.com@lists.yoctoproject.org> wrote:
> Thanks for the answer Jon,
> I must double confirm this then... I recall that on kirkstone:
> There were no labels in both meta-ti-bsp and meta-yocto-bsp,
> They were missing for both dts (black and green).
> Will check this with the author (Robert C Nelson) and also test it tomorrow 
> and let you know.
>
> --
> Łukasz Przeniosło
>
>
> ------ Original Message ------
> From "Jon Cormier" <jcormier@criticallink.com>
> To "Bremenpl" <bremenpl@gmail.com>
> Cc meta-ti@lists.yoctoproject.org
> Date 2024-01-11 19:25:37
> Subject Re: [meta-ti] [kirkstone] libgpiod-tools gpioinfo missing for 
> beaglebone
>
>> We can do a little digging to hopefully find out.
>>
>> Based on my checkout which may be newer or older than yours:
>> * According to meta-ti/meta-ti-bsp/conf/machine/beaglebone.conf, the kernel 
>> recipe used is linux-bb.org.
>> * According to 
>> meta-ti/meta-ti-bsp/recipes-kernel/linux/linux-bb.org_git.bb, the kernel 
>> repo used is github.com/beagleboard/linux.git, branch v6.1.46-ti-r13.
>> * According to that repo, the boneblack should have the gpio-line-names and 
>> the bonegreen doesn't...
>> https://github.com/beagleboard/linux/blob/6.1.46-ti-rt-r13/arch/arm/boot/dts/am335x-boneblack.dts
>> https://github.com/beagleboard/linux/blob/6.1.46-ti-rt-r13/arch/arm/boot/dts/am335x-bonegreen.dts
>>
>> To find out why you may have to ask them. Or look through the history to 
>> find a commit about it.
>>
>>
>> On Thu, Jan 11, 2024 at 12:28 AM Bremenpl <bremenpl@gmail.com> wrote:
>> am335x-bonegreen.dts, can also be am335x-boneblack.dts, but the case here 
>> is the same.
>>
>> On January 10, 2024 23:23:26 Jon Cormier <jcormier@criticallink.com> wrote:
>>> Which device tree file is your device loading?
>>>
>>> On Wed, Jan 10, 2024 at 5:07 PM Bremenpl <bremenpl@gmail.com> wrote:
>>> Hi Jonathan,
>>> Thank you for the answer.
>>>
>>> Yes it seems the dts file changed a bit between Dunfell and Kirkstone and 
>>> these labers are now not there.
>>> Any idea why these were gotten rid of? As you mentioned they are usefull.
>>> Who should be contacted to potentially put them back in place in the repo 
>>> (in case these were removed by error)?
>>> Thanks.
>>>
>>>
>>> On January 10, 2024 22:52:44 Jon Cormier <jcormier@criticallink.com> wrote:
>>>>
>>>>
>>>> On Fri, Jan 5, 2024 at 3:49 AM Lukasz Przenioslo <bremenpl@gmail.com> wrote:
>>>> Hello,
>>>> I have recently moved from Dunfell to Kirkstone for the beaglebone machine. 
>>>> Since then I have noticed that calling gpioinfo from libgpiod-tools does 
>>>> not show the gpio labels:
>>>>
>>>> ```
>>>> root@beaglebone:~# gpioinfo
>>>> gpiochip0 - 32 lines:
>>>> line   0:      unnamed       unused   input  active-high
>>>> line   1:      unnamed       unused   input  active-high
>>>> line   2:      unnamed       unused   input  active-high
>>>> line   3:      unnamed       unused   input  active-high
>>>> line   4:      unnamed       unused   input  active-high
>>>> line   5:      unnamed       unused   input  active-high
>>>> line   6:      unnamed       unused   input  active-high
>>>> line   7:      unnamed       unused   input  active-high
>>>> line   8:      unnamed       unused   input  active-high
>>>> line   9:      unnamed       unused   input  active-high
>>>> line  10:      unnamed       unused   input  active-high
>>>> line  11:      unnamed       unused   input  active-high
>>>> line  12:      unnamed       unused   input  active-high
>>>> line  13:      unnamed       unused   input  active-high
>>>> line  14:      unnamed       unused   input  active-high
>>>> line  15:      unnamed       unused   input  active-high
>>>> line  16:      unnamed       unused   input  active-high
>>>> line  17:      unnamed       unused   input  active-high
>>>> line  18:      unnamed       unused   input  active-high
>>>> line  19:      unnamed       unused   input  active-high
>>>> line  20:      unnamed       unused   input  active-high
>>>> line  21:      unnamed "beaglebone:green:usr0" output active-high [used]
>>>> line  22:      unnamed "beaglebone:green:usr1" output active-high [used]
>>>> line  23:      unnamed "beaglebone:green:usr2" output active-high [used]
>>>> line  24:      unnamed "beaglebone:green:usr3" output active-high [used]
>>>> line  25:      unnamed       unused   input  active-high
>>>> line  26:      unnamed       unused   input  active-high
>>>> line  27:      unnamed       unused   input  active-high
>>>> line  28:      unnamed       unused   input  active-high
>>>> line  29:      unnamed       unused   input  active-high
>>>> line  30:      unnamed       unused   input  active-high
>>>> line  31:      unnamed       unused   input  active-high
>>>> gpiochip1 - 32 lines:
>>>> line   0:      unnamed       unused   input  active-high
>>>> line   1:      unnamed       unused   input  active-high
>>>> line   2:      unnamed       unused   input  active-high
>>>> line   3:      unnamed       unused   input  active-high
>>>> line   4:      unnamed       unused   input  active-high
>>>> line   5:      unnamed       unused   input  active-high
>>>> line   6:      unnamed       unused   input  active-high
>>>> line   7:      unnamed       unused   input  active-high
>>>> line   8:      unnamed       unused   input  active-high
>>>> line   9:      unnamed       unused   input  active-high
>>>> line  10:      unnamed       unused   input  active-high
>>>> line  11:      unnamed       unused   input  active-high
>>>> line  12:      unnamed       unused   input  active-high
>>>> line  13:      unnamed       unused   input  active-high
>>>> line  14:      unnamed       unused   input  active-high
>>>> line  15:      unnamed       unused   input  active-high
>>>> line  16:      unnamed       unused   input  active-high
>>>> line  17:      unnamed       unused   input  active-high
>>>> line  18:      unnamed       unused   input  active-high
>>>> line  19:      unnamed       unused   input  active-high
>>>> line  20:      unnamed       unused   input  active-high
>>>> line  21:      unnamed       unused   input  active-high
>>>> line  22:      unnamed       unused   input  active-high
>>>> line  23:      unnamed       unused   input  active-high
>>>> line  24:      unnamed       unused   input  active-high
>>>> line  25:      unnamed       unused   input  active-high
>>>> line  26:      unnamed       unused   input  active-high
>>>> line  27:      unnamed       unused   input  active-high
>>>> line  28:      unnamed       unused   input  active-high
>>>> line  29:      unnamed       unused   input  active-high
>>>> line  30:      unnamed       unused   input  active-high
>>>> line  31:      unnamed       unused   input  active-high
>>>> gpiochip2 - 32 lines:
>>>> line   0:      unnamed       unused   input  active-high
>>>> line   1:      unnamed       unused   input  active-high
>>>> line   2:      unnamed       unused   input  active-high
>>>> line   3:      unnamed       unused   input  active-high
>>>> line   4:      unnamed       unused   input  active-high
>>>> line   5:      unnamed       unused   input  active-high
>>>> line   6:      unnamed       unused   input  active-high
>>>> line   7:      unnamed       unused   input  active-high
>>>> line   8:      unnamed       unused   input  active-high
>>>> line   9:      unnamed       unused   input  active-high
>>>> line  10:      unnamed       unused   input  active-high
>>>> line  11:      unnamed       unused   input  active-high
>>>> line  12:      unnamed       unused   input  active-high
>>>> line  13:      unnamed       unused   input  active-high
>>>> line  14:      unnamed       unused   input  active-high
>>>> line  15:      unnamed       unused   input  active-high
>>>> line  16:      unnamed       unused   input  active-high
>>>> line  17:      unnamed       unused   input  active-high
>>>> line  18:      unnamed       unused   input  active-high
>>>> line  19:      unnamed       unused   input  active-high
>>>> line  20:      unnamed       unused   input  active-high
>>>> line  21:      unnamed       unused   input  active-high
>>>> line  22:      unnamed       unused   input  active-high
>>>> line  23:      unnamed       unused   input  active-high
>>>> line  24:      unnamed       unused   input  active-high
>>>> line  25:      unnamed       unused   input  active-high
>>>> line  26:      unnamed       unused   input  active-high
>>>> line  27:      unnamed       unused   input  active-high
>>>> line  28:      unnamed       unused   input  active-high
>>>> line  29:      unnamed       unused   input  active-high
>>>> line  30:      unnamed       unused   input  active-high
>>>> line  31:      unnamed       unused   input  active-high
>>>> gpiochip3 - 32 lines:
>>>> line   0:      unnamed       unused   input  active-high
>>>> line   1:      unnamed       unused   input  active-high
>>>> line   2:      unnamed       unused   input  active-high
>>>> line   3:      unnamed       unused   input  active-high
>>>> line   4:      unnamed       unused   input  active-high
>>>> line   5:      unnamed       unused   input  active-high
>>>> line   6:      unnamed         "cd"   input   active-low [used]
>>>> line   7:      unnamed       unused   input  active-high
>>>> line   8:      unnamed       unused   input  active-high
>>>> line   9:      unnamed       unused   input  active-high
>>>> line  10:      unnamed       unused   input  active-high
>>>> line  11:      unnamed       unused   input  active-high
>>>> line  12:      unnamed       unused   input  active-high
>>>> line  13:      unnamed       unused   input  active-high
>>>> line  14:      unnamed       unused   input  active-high
>>>> line  15:      unnamed       unused   input  active-high
>>>> line  16:      unnamed       unused   input  active-high
>>>> line  17:      unnamed       unused   input  active-high
>>>> line  18:      unnamed       unused   input  active-high
>>>> line  19:      unnamed       unused   input  active-high
>>>> line  20:      unnamed       unused   input  active-high
>>>> line  21:      unnamed       unused   input  active-high
>>>> line  22:      unnamed       unused   input  active-high
>>>> line  23:      unnamed       unused   input  active-high
>>>> line  24:      unnamed       unused   input  active-high
>>>> line  25:      unnamed       unused   input  active-high
>>>> line  26:      unnamed       unused   input  active-high
>>>> line  27:      unnamed       unused   input  active-high
>>>> line  28:      unnamed       unused   input  active-high
>>>> line  29:      unnamed       unused   input  active-high
>>>> line  30:      unnamed       unused   input  active-high
>>>> line  31:      unnamed       unused   input  active-high
>>>> ```
>>>>
>>>> 1. What could be the cause for that (exact different between Dunfell and 
>>>> Kirkstone in meta-ti)? Can it be that the relevant dts file(s) somehow changed?
>>>> The gpio names are defined in the device tree by defining "gpio-line-names 
>>>> = ..."
>>>> Example for the am335x-boneblack.dts from TIs 6.1 kernel. 
>>>> https://git.ti.com/cgit/ti-linux-kernel/ti-linux-kernel/tree/arch/arm/boot/dts/am335x-boneblack.dts?h=ti-linux-6.1.y#n29
>>>> 2. Aside from labels missing, can there be any other consequences here? I 
>>>> tested gpio outputs state changing and it works normally.
>>>> I'd guess no, other than it being harder to identify the correct gpio.
>>>>
>>>> I would appreciate all help and feedback!
>>>>
>>>>
>>>>
>>>>
>>>>
>>>> --
>>>> Jonathan Cormier
>>>> Software Engineer
>>>>
>>>> Voice:  315.425.4045 x222
>>>>
>>>>
>>>>
>>>>
>>>> http://www.CriticalLink.com
>>>> 6712 Brooklawn Parkway, Syracuse, NY 13211
>>>
>>>
>>>
>>> --
>>> Jonathan Cormier
>>> Software Engineer
>>>
>>> Voice:  315.425.4045 x222
>>>
>>>
>>>
>>>
>>> http://www.CriticalLink.com
>>> 6712 Brooklawn Parkway, Syracuse, NY 13211
>>
>>
>>
>> --
>> Jonathan Cormier
>> Software Engineer
>>
>> Voice:  315.425.4045 x222
>>
>>
>>
>>
>>
>>
>> http://www.CriticalLink.com
>> 6712 Brooklawn Parkway, Syracuse, NY 13211
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      parent reply	other threads:[~2024-01-13  9:23 UTC|newest]

Thread overview: 8+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2024-01-05  8:49 [kirkstone] libgpiod-tools gpioinfo missing for beaglebone Lukasz Przenioslo
2024-01-10 21:52 ` [meta-ti] " Jon Cormier
2024-01-10 22:07   ` Bremenpl
2024-01-10 22:23     ` Jon Cormier
2024-01-11  5:28       ` Bremenpl
2024-01-11 18:25         ` Jon Cormier
2024-01-12 10:38           ` Re[2]: " Łukasz Przeniosło
     [not found]           ` <17A9934C6E495BDF.31870@lists.yoctoproject.org>
2024-01-13  9:23             ` Bremenpl [this message]

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