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Date: Thu, 18 Jun 2015 16:10:15 +0300 From: Laurent Pinchart <laurent.pinchart@...asonboard.com> To: Viresh Kumar <viresh.kumar@...aro.org> Cc: Thomas Gleixner <tglx@...utronix.de>, Daniel Lezcano <daniel.lezcano@...aro.org>, linaro-kernel@...ts.linaro.org, linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org, Magnus Damm <damm+renesas@...nsource.se>, Laurent Pinchart <laurent.pinchart+renesas@...asonboard.com>, Paul Mundt <lethal@...ux-sh.org> Subject: Re: [PATCH 21/41] clocksource: sh_mtu2: Migrate to new 'set-state' interface Hi Viresh, Thank you for the patch. On Thursday 18 June 2015 16:24:35 Viresh Kumar wrote: > Migrate sh_mtu2 driver to the new 'set-state' interface provided by > clockevents core, the earlier 'set-mode' interface is marked obsolete > now. > > This also enables us to implement callbacks for new states of clockevent > devices, for example: ONESHOT_STOPPED. > > Cc: Magnus Damm <damm+renesas@...nsource.se> > Cc: Laurent Pinchart <laurent.pinchart+renesas@...asonboard.com> > Cc: Paul Mundt <lethal@...ux-sh.org> > Signed-off-by: Viresh Kumar <viresh.kumar@...aro.org> Acked-by: Laurent Pinchart <laurent.pinchart+renesas@...asonboard.com> > --- > drivers/clocksource/sh_mtu2.c | 42 ++++++++++++++------------------------ > 1 file changed, 16 insertions(+), 26 deletions(-) > > diff --git a/drivers/clocksource/sh_mtu2.c b/drivers/clocksource/sh_mtu2.c > index 3d88698cf2b8..f1985da8113f 100644 > --- a/drivers/clocksource/sh_mtu2.c > +++ b/drivers/clocksource/sh_mtu2.c > @@ -276,36 +276,25 @@ static struct sh_mtu2_channel *ced_to_sh_mtu2(struct > clock_event_device *ced) return container_of(ced, struct sh_mtu2_channel, > ced); > } > > -static void sh_mtu2_clock_event_mode(enum clock_event_mode mode, > - struct clock_event_device *ced) > +static int sh_mtu2_clock_event_shutdown(struct clock_event_device *ced) > { > struct sh_mtu2_channel *ch = ced_to_sh_mtu2(ced); > - int disabled = 0; > > - /* deal with old setting first */ > - switch (ced->mode) { > - case CLOCK_EVT_MODE_PERIODIC: > + sh_mtu2_disable(ch); > + return 0; > +} > + > +static int sh_mtu2_clock_event_set_periodic(struct clock_event_device *ced) > +{ > + struct sh_mtu2_channel *ch = ced_to_sh_mtu2(ced); > + > + if (clockevent_state_periodic(ced)) > sh_mtu2_disable(ch); > - disabled = 1; > - break; > - default: > - break; > - } > > - switch (mode) { > - case CLOCK_EVT_MODE_PERIODIC: > - dev_info(&ch->mtu->pdev->dev, > - "ch%u: used for periodic clock events\n", ch->index); > - sh_mtu2_enable(ch); > - break; > - case CLOCK_EVT_MODE_UNUSED: > - if (!disabled) > - sh_mtu2_disable(ch); > - break; > - case CLOCK_EVT_MODE_SHUTDOWN: > - default: > - break; > - } > + dev_info(&ch->mtu->pdev->dev, "ch%u: used for periodic clock events\n", > + ch->index); > + sh_mtu2_enable(ch); > + return 0; > } > > static void sh_mtu2_clock_event_suspend(struct clock_event_device *ced) > @@ -327,7 +316,8 @@ static void sh_mtu2_register_clockevent(struct > sh_mtu2_channel *ch, ced->features = CLOCK_EVT_FEAT_PERIODIC; > ced->rating = 200; > ced->cpumask = cpu_possible_mask; > - ced->set_mode = sh_mtu2_clock_event_mode; > + ced->set_state_shutdown = sh_mtu2_clock_event_shutdown; > + ced->set_state_periodic = sh_mtu2_clock_event_set_periodic; > ced->suspend = sh_mtu2_clock_event_suspend; > ced->resume = sh_mtu2_clock_event_resume; -- Regards, Laurent Pinchart -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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