Re: [PATCH v2 5/5] clocksource: sun5i: Add clock notifiers

[Daniel Lezcano]

On 03/04/2015 10:32 AM, Maxime Ripard wrote:
> On Tue, Mar 03, 2015 at 12:16:57PM +0100, Daniel Lezcano wrote:
> > On 03/03/2015 09:52 AM, Maxime Ripard wrote:
> > > On Mon, Jan 26, 2015 at 03:35:41PM +0100, Maxime Ripard wrote:
> > > > > > +static int sun5i_rate_cb_clksrc(struct notifier_block *nb,
> > > > > > +				unsigned long event, void *data)
> > > > > > +{
> > > > > > +	struct clk_notifier_data *ndata = data;
> > > > > > +	struct sun5i_timer *timer = to_sun5i_timer(nb);
> > > > > > +	struct sun5i_timer_clksrc *cs = container_of(timer,
> > > > > > +						     struct sun5i_timer_clksrc, timer);
> > > > > > +
> > > > > > +	switch (event) {
> > > > > > +	case PRE_RATE_CHANGE:
> > > > > > +		clocksource_unregister(&cs->clksrc);
> > > > > > +		break;
> > > > > > +
> > > > > > +	case POST_RATE_CHANGE:
> > > > > > +		clocksource_register_hz(&cs->clksrc, ndata->new_rate);
> > > > > > +		break;
> > > > >
> > > > > Why clocksource_unregister couldn't be in the POST_RATE_CHANGE ?
> > > >
> > > > Wouldn't that leave a (small, I agree) window where the timer would
> > > > run at a rate different to the one it has been registered with?
> > >
> > > Ping?
> >
> > Hi Maxime,
> >
> > except I missed something, there were a couple of comments and I was waiting
> > a V3.
>
> Indeed, but one of these comments (the one above) was still under
> discussion.

Ah, yeah. Fair enough :)



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