hollalinux
/
linux-sg2042
mirror of https://github.com/sophgo/linux-riscv.git
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity

clockevents/drivers/sun4i: Migrate to new 'set-state' interface 

Migrate sun4i 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: Maxime Ripard <maxime.ripard@free-electrons.com>
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Acked-by: Maxime Ripard <maxime.ripard@free-electrons.com>
This commit is contained in:
Viresh Kumar 2015-06-18 16:24:37 +05:30 committed by Daniel Lezcano
parent 2bcc4da3d4
commit 6de6c977bd
1 changed files with 22 additions and 19 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

41
drivers/clocksource/sun4i_timer.c
View File

@ -81,25 +81,25 @@ static void sun4i_clkevt_time_start(u8 timer, bool periodic)
timer_base + TIMER_CTL_REG(timer));
}
static void sun4i_clkevt_mode(enum clock_event_mode mode,
struct clock_event_device *clk)
static int sun4i_clkevt_shutdown(struct clock_event_device *evt)
{
switch (mode) {
case CLOCK_EVT_MODE_PERIODIC:
sun4i_clkevt_time_stop(0);
sun4i_clkevt_time_setup(0, ticks_per_jiffy);
sun4i_clkevt_time_start(0, true);
break;
case CLOCK_EVT_MODE_ONESHOT:
sun4i_clkevt_time_stop(0);
sun4i_clkevt_time_start(0, false);
break;
case CLOCK_EVT_MODE_UNUSED:
case CLOCK_EVT_MODE_SHUTDOWN:
default:
sun4i_clkevt_time_stop(0);
break;
}
sun4i_clkevt_time_stop(0);
return 0;
}
static int sun4i_clkevt_set_oneshot(struct clock_event_device *evt)
{
sun4i_clkevt_time_stop(0);
sun4i_clkevt_time_start(0, false);
return 0;
}
static int sun4i_clkevt_set_periodic(struct clock_event_device *evt)
{
sun4i_clkevt_time_stop(0);
sun4i_clkevt_time_setup(0, ticks_per_jiffy);
sun4i_clkevt_time_start(0, true);
return 0;
}
static int sun4i_clkevt_next_event(unsigned long evt,
@ -116,7 +116,10 @@ static struct clock_event_device sun4i_clockevent = {
.name = "sun4i_tick",
.rating = 350,
.features = CLOCK_EVT_FEAT_PERIODIC | CLOCK_EVT_FEAT_ONESHOT,
.set_mode = sun4i_clkevt_mode,
.set_state_shutdown = sun4i_clkevt_shutdown,
.set_state_periodic = sun4i_clkevt_set_periodic,
.set_state_oneshot = sun4i_clkevt_set_oneshot,
.tick_resume = sun4i_clkevt_shutdown,
.set_next_event = sun4i_clkevt_next_event,
};