Re: [PATCH v6 00/10] acpi, clocksource: add GTDT driver and GTDT support in arm_arch_timer

[Daniel Lezcano]

On 06/30/2016 03:27 PM, Rafael J. Wysocki wrote:

[ ... ]

> > GTDT is part of ACPI spec, drivers/acpi/ is for driver code of
> > ACPI spec, I think it can stay in drivers/acpi/ from this point
> > of view, am I right?
>
> The question is not "Can it?", but "Does it need to?".
>
> It is in the spec, but still there's only one architecture needing it.
>
> There is no way to test it on any other architecture and no reason to build it
> for any other architecture, so why does it need to be located in drivers/acpi/ ?

Hi Rafael,

what is the problem of having it in drivers/acpi ?

There are cpufreq-dt, speedstep*, tegra124-* in drivers/cpufreq.

clocksource-probe which is DT based with different drivers using it in 
drivers/clocksource with a pletore of different archs.

Cstate code which is only used by x86 is in drivers/acpi, it is only 
used by x86/ia64 and it isn't a problem. There is a small chunk in 
arch/x86/kernel/acpi and it doesn't facilitate the comprehension of the 
code.

IMHO, having all ACPI code in the same directory will encourage the 
consolidation.



--
 <http://www.linaro.org/> Linaro.org â Open source software for ARM SoCs

Follow Linaro:  <http://www.facebook.com/pages/Linaro> Facebook |
<http://twitter.com/#!/linaroorg> Twitter |
<http://www.linaro.org/linaro-blog/> Blog