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Re: [PATCH 1/3] Documentation: dt: keystone: provide SoC specific compatible flags

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On 09/23/2015 02:19 PM, santosh shilimkar wrote:
> Nishant,
>
> On 9/22/2015 9:08 AM, Nishanth Menon wrote:
>> Keystone2 devices are used on more platforms than just Texas
>> Instruments reference evaluation platforms called EVMs. Providing a
>> generic compatible "ti,keystone" is not sufficient to differentiate
>> various SoC definitions possible on various platforms. So, provide
>> compatible matches for each SoC family by itself.
>>
>> This allows SoC specific logic to be run time handled based on
>> of_machine_is_compatible("ti,k2hk") or as needed for the dependent
>> processor instead of needing to use board dependent compatibles that
>> are needed now.
>>
>> Signed-off-by: Nishanth Menon <nm@ti.com>
>> ---
> You need to expand that 'not sufficient' for me. Unless there is
> genuine case to support this, I would want to avoid this churn.
>

I agree. If there are run time check required in code to treat the 
variants of Keystone SoC differently, then this change is needed. At 
this time, SoC DTS captures these differences. IMHO, If a future 
Keystone SoC support required SoC specific compatibility string to 
customize SoC specific initialization code, then it can be introduced at 
that time. I am not sure why this is introduced with out an example usage.

> Regards,
> Santosh
>
> _______________________________________________
> linux-arm-kernel mailing list
> linux-arm-kernel@lists.infradead.org
> http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
>
>


-- 
Murali Karicheri
Linux Kernel, Keystone
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[PATCH 1/3] Documentation: dt: keystone: provide SoC specific compatible flags Nishanth Menon <nm@ti.com> - 2015-09-22 18:10 +0200
  Re: [PATCH 1/3] Documentation: dt: keystone: provide SoC specific  compatible flags Murali Karicheri <m-karicheri2@ti.com> - 2015-09-23 20:10 +0200
    Re: [PATCH 1/3] Documentation: dt: keystone: provide SoC specific  compatible flags Nishanth Menon <nm@ti.com> - 2015-09-23 21:20 +0200
  Re: [PATCH 1/3] Documentation: dt: keystone: provide SoC specific  compatible flags santosh shilimkar <santosh.shilimkar@oracle.com> - 2015-09-23 20:30 +0200
    Re: [PATCH 1/3] Documentation: dt: keystone: provide SoC specific  compatible flags Murali Karicheri <m-karicheri2@ti.com> - 2015-09-24 16:10 +0200
      Re: [PATCH 1/3] Documentation: dt: keystone: provide SoC specific  compatible flags Nishanth Menon <nm@ti.com> - 2015-09-24 16:30 +0200
        Re: [PATCH 1/3] Documentation: dt: keystone: provide SoC specific  compatible flags Murali Karicheri <m-karicheri2@ti.com> - 2015-09-24 18:00 +0200
          Re: [PATCH 1/3] Documentation: dt: keystone: provide SoC specific  compatible flags Nishanth Menon <nm@ti.com> - 2015-09-25 17:00 +0200
            Re: [PATCH 1/3] Documentation: dt: keystone: provide SoC specific  compatible flags santosh shilimkar <santosh.shilimkar@oracle.com> - 2015-09-25 17:20 +0200
              Re: [PATCH 1/3] Documentation: dt: keystone: provide SoC specific  compatible flags Nishanth Menon <nm@ti.com> - 2015-09-25 18:10 +0200
                Re: [PATCH 1/3] Documentation: dt: keystone: provide SoC specific  compatible flags santosh shilimkar <santosh.shilimkar@oracle.com> - 2015-09-25 18:20 +0200
                Re: [PATCH 1/3] Documentation: dt: keystone: provide SoC specific  compatible flags Nishanth Menon <menon.nishanth@gmail.com> - 2015-09-25 19:40 +0200
                Re: [PATCH 1/3] Documentation: dt: keystone: provide SoC specific  compatible flags santosh shilimkar <santosh.shilimkar@oracle.com> - 2015-10-02 18:20 +0200
                Re: [PATCH 1/3] Documentation: dt: keystone: provide SoC specific  compatible flags Nishanth Menon <nm@ti.com> - 2015-10-04 01:50 +0200
                Re: [PATCH 1/3] Documentation: dt: keystone: provide SoC specific  compatible flags "santosh.shilimkar@oracle.com" <santosh.shilimkar@oracle.com> - 2015-10-04 02:20 +0200
                Re: [PATCH 1/3] Documentation: dt: keystone: provide SoC specific  compatible flags Murali Karicheri <m-karicheri2@ti.com> - 2015-09-30 16:40 +0200

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