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clockevents/drivers/nomadik-mtu: Migrate to new 'set-state' interface 

Migrate nomadik-mtu 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: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
This commit is contained in:
Viresh Kumar 2015-06-18 16:24:29 +05:30 committed by Daniel Lezcano
parent eb8703e2ef
commit 9b0af69947
1 changed files with 30 additions and 28 deletions
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58
drivers/clocksource/nomadik-mtu.c
View File

@ -119,28 +119,27 @@ static void nmdk_clkevt_reset(void)
}
}
static void nmdk_clkevt_mode(enum clock_event_mode mode,
struct clock_event_device *dev)
static int nmdk_clkevt_shutdown(struct clock_event_device *evt)
{
switch (mode) {
case CLOCK_EVT_MODE_PERIODIC:
clkevt_periodic = true;
nmdk_clkevt_reset();
break;
case CLOCK_EVT_MODE_ONESHOT:
clkevt_periodic = false;
break;
case CLOCK_EVT_MODE_SHUTDOWN:
case CLOCK_EVT_MODE_UNUSED:
writel(0, mtu_base + MTU_IMSC);
/* disable timer */
writel(0, mtu_base + MTU_CR(1));
/* load some high default value */
writel(0xffffffff, mtu_base + MTU_LR(1));
break;
case CLOCK_EVT_MODE_RESUME:
break;
}
writel(0, mtu_base + MTU_IMSC);
/* disable timer */
writel(0, mtu_base + MTU_CR(1));
/* load some high default value */
writel(0xffffffff, mtu_base + MTU_LR(1));
return 0;
}
static int nmdk_clkevt_set_oneshot(struct clock_event_device *evt)
{
clkevt_periodic = false;
return 0;
}
static int nmdk_clkevt_set_periodic(struct clock_event_device *evt)
{
clkevt_periodic = true;
nmdk_clkevt_reset();
return 0;
}
static void nmdk_clksrc_reset(void)
@ -163,13 +162,16 @@ static void nmdk_clkevt_resume(struct clock_event_device *cedev)
}
static struct clock_event_device nmdk_clkevt = {
.name = "mtu_1",
.features = CLOCK_EVT_FEAT_ONESHOT | CLOCK_EVT_FEAT_PERIODIC |
CLOCK_EVT_FEAT_DYNIRQ,
.rating = 200,
.set_mode = nmdk_clkevt_mode,
.set_next_event = nmdk_clkevt_next,
.resume = nmdk_clkevt_resume,
.name = "mtu_1",
.features = CLOCK_EVT_FEAT_ONESHOT |
CLOCK_EVT_FEAT_PERIODIC |
CLOCK_EVT_FEAT_DYNIRQ,
.rating = 200,
.set_state_shutdown = nmdk_clkevt_shutdown,
.set_state_periodic = nmdk_clkevt_set_periodic,
.set_state_oneshot = nmdk_clkevt_set_oneshot,
.set_next_event = nmdk_clkevt_next,
.resume = nmdk_clkevt_resume,
};
/*