Re: [PATCH v3] ARM: at91: Document new TCB bindings

From: Boris Brezillon
Date: Mon Jul 04 2016 - 08:04:07 EST


On Mon, 4 Jul 2016 12:36:31 +0200
Alexandre Belloni <alexandre.belloni@xxxxxxxxxxxxxxxxxx> wrote:

> On 04/07/2016 at 12:24:52 +0200, Boris Brezillon wrote :
> > On Fri, 1 Jul 2016 23:52:05 +0200
> > Alexandre Belloni <alexandre.belloni@xxxxxxxxxxxxxxxxxx> wrote:
> > > +One interrupt per TC block:
> > > + tcb0: timer@fff7c000 {
> > > + compatible = "atmel,at91rm9200-tcb", "simple-mfd", "syscon";
> > > + #address-cells = <1>;
> > > + #size-cells = <0>;
> > > + reg = <0xfff7c000 0x100>;
> > > + interrupts = <18 4>;
> > > + clocks = <&tcb0_clk>, <&clk32k>;
> > > + clock-names = "t0_clk", "slow_clk";
> > > +
> > > + timer@0 {
> > > + compatible = "atmel,tcb-timer";
> > > + reg = <0>, <1>;
> > > + };
> > > +
> > > + timer@2 {
> > > + compatible = "atmel,tcb-timer";
> > > + reg = <2>;
> > > + };
> >
> > And how can you differentiate the clocksource from the clkevent?
> >
>
> It doesn't really matter actually, I'll do the selection in the driver,
> as suggested by Rob.
>

Yes, I've read Rob's review, but then what's the point of defining 2
timer nodes, just do the detection based on the number of channels
you've reserved for the timer and define a single node.