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>

1 files changed, 22 insertions, 19 deletions

diff --git a/drivers/clocksource/sun4i_timer.c b/drivers/clocksource/sun4i_timer.c
index 1928a8912584..6f3719d73390 100644
--- a/drivers/clocksource/sun4i_timer.c
+++ b/drivers/clocksource/sun4i_timer.c
@@ -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,
 };