Re: da850 dt cpufreq support

Re: da850 dt cpufreq support

[Tony Lindgren]

Hi,

Adding Bartosz, David and Sekhar to Cc.

* Christophe Aeschlimann <c.aeschlimann@acn-group.ch> [190220 15:34]:
> Hi,
> 
> I understand that today the da850-evm is supported in two ways in the
> Kernel, using board file, aka "legacy" and device-tree.
> 
> Am I right to say that when using the device-tree there is no support for
> cpufreq available ?
> 
> The "ti-cpufreq" driver doesn't target the da850 SoC and the
> "davinci-cpufreq" driver doesn't make use of the device-tree bindings.
> 
> Could the generic "cpufreq-dt" driver be used ?
> 
> Best regards,
> 
> Christophe
> 

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Re: da850 dt cpufreq support

[Adam Ford]

On Wed, Feb 20, 2019 at 9:47 AM Tony Lindgren <tony@atomide.com> wrote:
>
> Hi,
>
> Adding Bartosz, David and Sekhar to Cc.
>
> * Christophe Aeschlimann <c.aeschlimann@acn-group.ch> [190220 15:34]:
> > Hi,
> >
> > I understand that today the da850-evm is supported in two ways in the
> > Kernel, using board file, aka "legacy" and device-tree.
> >
> > Am I right to say that when using the device-tree there is no support for
> > cpufreq available ?
> >
> > The "ti-cpufreq" driver doesn't target the da850 SoC and the
> > "davinci-cpufreq" driver doesn't make use of the device-tree bindings.
> >
> > Could the generic "cpufreq-dt" driver be used ?

A while ago, David L posted a message on the mailing list pointing to
a git repo that hat some patches that weren't mainlined.

https://github.com/dlech/linux/tree/da850-dt-cpufreq

I was going to try and test them, but I never got around to it due to
other work projects.

adam
> >
> > Best regards,
> >
> > Christophe
> >
>
> _______________________________________________
> linux-arm-kernel mailing list
> linux-arm-kernel@lists.infradead.org
> http://lists.infradead.org/mailman/listinfo/linux-arm-kernel

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Re: da850 dt cpufreq support

[Bartosz Golaszewski]

śr., 20 lut 2019 o 16:59 Adam Ford <aford173@gmail.com> napisał(a):
>
> On Wed, Feb 20, 2019 at 9:47 AM Tony Lindgren <tony@atomide.com> wrote:
> >
> > Hi,
> >
> > Adding Bartosz, David and Sekhar to Cc.
> >
> > * Christophe Aeschlimann <c.aeschlimann@acn-group.ch> [190220 15:34]:
> > > Hi,
> > >
> > > I understand that today the da850-evm is supported in two ways in the
> > > Kernel, using board file, aka "legacy" and device-tree.
> > >
> > > Am I right to say that when using the device-tree there is no support for
> > > cpufreq available ?
> > >
> > > The "ti-cpufreq" driver doesn't target the da850 SoC and the
> > > "davinci-cpufreq" driver doesn't make use of the device-tree bindings.
> > >
> > > Could the generic "cpufreq-dt" driver be used ?
>
> A while ago, David L posted a message on the mailing list pointing to
> a git repo that hat some patches that weren't mainlined.
>
> https://github.com/dlech/linux/tree/da850-dt-cpufreq
>
> I was going to try and test them, but I never got around to it due to
> other work projects.
>

Actually David's just pushed an updated version with his Signed-off-by
tag that was missing previously and I'm about to continue his work.
I'll post patches shortly.

Best regards,
Bartosz Golaszewski

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Re: da850 dt cpufreq support

[Christophe Aeschlimann]

Le 20.02.2019 à 16:58, Adam Ford a écrit :
> On Wed, Feb 20, 2019 at 9:47 AM Tony Lindgren <tony@atomide.com> wrote:
>>
>> Hi,
>>
>> Adding Bartosz, David and Sekhar to Cc.
>>
>> * Christophe Aeschlimann <c.aeschlimann@acn-group.ch> [190220 15:34]:
>>> Hi,
>>>
>>> I understand that today the da850-evm is supported in two ways in the
>>> Kernel, using board file, aka "legacy" and device-tree.
>>>
>>> Am I right to say that when using the device-tree there is no support for
>>> cpufreq available ?
>>>
>>> The "ti-cpufreq" driver doesn't target the da850 SoC and the
>>> "davinci-cpufreq" driver doesn't make use of the device-tree bindings.
>>>
>>> Could the generic "cpufreq-dt" driver be used ?
> 
> A while ago, David L posted a message on the mailing list pointing to
> a git repo that hat some patches that weren't mainlined.
> 
> https://github.com/dlech/linux/tree/da850-dt-cpufreq
> 
> I was going to try and test them, but I never got around to it due to
> other work projects.

Thanks for the pointer.

Christophe

> 
> adam
>>>
>>> Best regards,
>>>
>>> Christophe
>>>
>>
>> _______________________________________________
>> linux-arm-kernel mailing list
>> linux-arm-kernel@lists.infradead.org
>> http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
> 


-- 
Christophe Aeschlimann

Embedded Software Engineer & IT Manager
ACN Advanced Communications Networks S.A.
2000 - Neuchâtel, Switzerland
Tel. +41 32 724 74 31

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