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>

diff --git a/drivers/clocksource/nomadik-mtu.c b/drivers/clocksource/nomadik-mtu.c
index a709cfa49d853bf79c6159d276c9c063ad1bed4b..bc8dd443c72711f776eafd90562a35949ccd0856 100644 (file)
--- a/drivers/clocksource/nomadik-mtu.c
+++ b/drivers/clocksource/nomadik-mtu.c
@@ -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,
 };
 
 /*