[PATCH] ARM: OMAP2+: timer: remove CONFIG_OMAP_32K_TIMER

Hiremath, Vaibhav hvaibhav at ti.com
Thu Nov 8 13:59:09 EST 2012

On Fri, Nov 09, 2012 at 00:24:23, Hunter, Jon wrote:
> On 11/08/2012 01:59 AM, Igor Grinberg wrote:
> [snip]
> > There is no reliable way to determine which source should be used in runtime
> > for boards that do not have the 32k oscillator wired.
> So thinking about this some more and given that we are moving away from
> board files, if a board does not provide a 32kHz clock source, then this
> should be reflected in the device-tree source file for that board.
> Hence, at boot time we should be able to determine if a 32kHz clock
> source can be used.

Let me feed some more thoughts here :)

The way it is being detected currently is based on timer idle status bit.
I am worried that, this is the only option we have.

You can also refer to the implementation, so that it will help us to 
conclude on this -


Note that this is based on v3.2 kernel (+ additional patches), you should 
look the implementation of function omap_dm_timer_switch_src().


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