Re: [PATCH (sh-2.6) 1/4] clksource: Generic timer infrastructure

[Russell King - ARM Linux]

On Tue, Mar 01, 2011 at 05:43:19PM +0100, Arnd Bergmann wrote:
> On Tuesday 01 March 2011, Stuart Menefy wrote:
> > On 24/02/11 17:20, Arnd Bergmann wrote:
> > > Also, what is the difference between this and clkdev?
> > 
> > clkdev can be used to find a struct clk, which is fine if you just want to
> > read the time. In this instance we want to get interrupts from the timer
> > hardware, which isn't supported by the clk infrastructure.
> 
> (adding Russell to Cc)
> 
> Is this something that could sensibly be added to clk/clkdev?

I don't understand - why would anyone want to use clk/clkdev for timers.
clk/clkdev is all about those signals on the SoC which wiggle at regular
intervals between logic 0 and logic 1.  It's not about things which count,
which seems to be an entirely separate problem, and hence why there's
nothing to deal with interrupts or setting timeouts etc.
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