Re: [PATCH V6 02/15] ARM: OMAP2+: AM33XX: add lateinit hook for calling pm late init

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On 10/10/2013 08:32 AM, Nishanth Menon wrote:
> On 00:32-20131010, Joel Fernandes wrote:
>> On 10/09/2013 06:24 PM, Nishanth Menon wrote:
>>> Call OMAP2+ generic lateinit hook from AM specific late init hook.
>>> This allows the generic late initializations such as cpufreq hooks
>>> to be active.
>>>
>>> Cc: Benoit Cousson <bcousson@xxxxxxxxxxxx>
>>> Cc: Kevin Hilman <khilman@xxxxxxxxxxxxxxxxxxx>
>>> Cc: Paul Walmsley <paul@xxxxxxxxx>
>>> Cc: Tony Lindgren <tony@xxxxxxxxxxx>
>>> Signed-off-by: Nishanth Menon <nm@xxxxxx>
>>> ---
>>>  arch/arm/mach-omap2/board-generic.c |    1 +
>>>  arch/arm/mach-omap2/common.h        |    1 +
>>>  arch/arm/mach-omap2/io.c            |    6 ++++++
>>>  3 files changed, 8 insertions(+)
>>>
>>> diff --git a/arch/arm/mach-omap2/board-generic.c b/arch/arm/mach-omap2/board-generic.c
>>> index 87162e1..b474498 100644
>>> --- a/arch/arm/mach-omap2/board-generic.c
>>> +++ b/arch/arm/mach-omap2/board-generic.c
>>> @@ -180,6 +180,7 @@ DT_MACHINE_START(AM33XX_DT, "Generic AM33XX (Flattened Device Tree)")
>>>  	.init_irq	= omap_intc_of_init,
>>>  	.handle_irq	= omap3_intc_handle_irq,
>>>  	.init_machine	= omap_generic_init,
>>> +	.init_late	= am33xx_init_late,
>>
>> Instead of adding a new a *_init_late function for every platform, perhaps
>> better to just do:
>> .init_late	= omap2_common_pm_late_init;
>>
>> since that's the only function you're calling.
>>
>> Later if more functions are added, then it can be wrapped around.
> 
> And what benefit would that give us? we break consistency of functions
> available in io.c, considering the work we have already done in
> out-of-tree patches on ti-forks, we *do know* that there is more
> incoming and has to be done anyways, I prefer having symmetric
> functions and a placeholder that folks can add on to.
> 

Ok, sure if you think such placeholders are right way and there's more code
later to be added to init_late callbacks.

Adding 6 lines of identical code for every platform seems redundant, I'd just
define an omap_common_late_init for all platforms for now, and then fork off for
the future differences. That way we save on LOC and readability in the header as
well. Your call.

thanks,

-Joel

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