Commit c88f2fb4 authored by Viresh Kumar's avatar Viresh Kumar Committed by Ralf Baechle

MIPS: cevt-gt641xx: Migrate to new 'set-state' interface

Migrate cevt-gt641xx 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.
Signed-off-by: default avatarViresh Kumar <viresh.kumar@linaro.org>
Cc: Daniel Lezcano <daniel.lezcano@linaro.org>
Cc: linux-mips@linux-mips.org
Cc: linaro-kernel@lists.linaro.org
Cc: Thomas Gleixner <tglx@linutronix.de>
Patchwork: https://patchwork.linux-mips.org/patch/10604/Signed-off-by: default avatarRalf Baechle <ralf@linux-mips.org>
parent 9f95618f
...@@ -64,8 +64,7 @@ static int gt641xx_timer0_set_next_event(unsigned long delta, ...@@ -64,8 +64,7 @@ static int gt641xx_timer0_set_next_event(unsigned long delta,
return 0; return 0;
} }
static void gt641xx_timer0_set_mode(enum clock_event_mode mode, static int gt641xx_timer0_shutdown(struct clock_event_device *evt)
struct clock_event_device *evt)
{ {
u32 ctrl; u32 ctrl;
...@@ -73,21 +72,39 @@ static void gt641xx_timer0_set_mode(enum clock_event_mode mode, ...@@ -73,21 +72,39 @@ static void gt641xx_timer0_set_mode(enum clock_event_mode mode,
ctrl = GT_READ(GT_TC_CONTROL_OFS); ctrl = GT_READ(GT_TC_CONTROL_OFS);
ctrl &= ~(GT_TC_CONTROL_ENTC0_MSK | GT_TC_CONTROL_SELTC0_MSK); ctrl &= ~(GT_TC_CONTROL_ENTC0_MSK | GT_TC_CONTROL_SELTC0_MSK);
GT_WRITE(GT_TC_CONTROL_OFS, ctrl);
switch (mode) { raw_spin_unlock(&gt641xx_timer_lock);
case CLOCK_EVT_MODE_PERIODIC: return 0;
ctrl |= GT_TC_CONTROL_ENTC0_MSK | GT_TC_CONTROL_SELTC0_MSK; }
break;
case CLOCK_EVT_MODE_ONESHOT: static int gt641xx_timer0_set_oneshot(struct clock_event_device *evt)
{
u32 ctrl;
raw_spin_lock(&gt641xx_timer_lock);
ctrl = GT_READ(GT_TC_CONTROL_OFS);
ctrl &= ~GT_TC_CONTROL_SELTC0_MSK;
ctrl |= GT_TC_CONTROL_ENTC0_MSK; ctrl |= GT_TC_CONTROL_ENTC0_MSK;
break; GT_WRITE(GT_TC_CONTROL_OFS, ctrl);
default:
break;
}
raw_spin_unlock(&gt641xx_timer_lock);
return 0;
}
static int gt641xx_timer0_set_periodic(struct clock_event_device *evt)
{
u32 ctrl;
raw_spin_lock(&gt641xx_timer_lock);
ctrl = GT_READ(GT_TC_CONTROL_OFS);
ctrl |= GT_TC_CONTROL_ENTC0_MSK | GT_TC_CONTROL_SELTC0_MSK;
GT_WRITE(GT_TC_CONTROL_OFS, ctrl); GT_WRITE(GT_TC_CONTROL_OFS, ctrl);
raw_spin_unlock(&gt641xx_timer_lock); raw_spin_unlock(&gt641xx_timer_lock);
return 0;
} }
static void gt641xx_timer0_event_handler(struct clock_event_device *dev) static void gt641xx_timer0_event_handler(struct clock_event_device *dev)
...@@ -96,10 +113,14 @@ static void gt641xx_timer0_event_handler(struct clock_event_device *dev) ...@@ -96,10 +113,14 @@ static void gt641xx_timer0_event_handler(struct clock_event_device *dev)
static struct clock_event_device gt641xx_timer0_clockevent = { static struct clock_event_device gt641xx_timer0_clockevent = {
.name = "gt641xx-timer0", .name = "gt641xx-timer0",
.features = CLOCK_EVT_FEAT_PERIODIC | CLOCK_EVT_FEAT_ONESHOT, .features = CLOCK_EVT_FEAT_PERIODIC |
CLOCK_EVT_FEAT_ONESHOT,
.irq = GT641XX_TIMER0_IRQ, .irq = GT641XX_TIMER0_IRQ,
.set_next_event = gt641xx_timer0_set_next_event, .set_next_event = gt641xx_timer0_set_next_event,
.set_mode = gt641xx_timer0_set_mode, .set_state_shutdown = gt641xx_timer0_shutdown,
.set_state_periodic = gt641xx_timer0_set_periodic,
.set_state_oneshot = gt641xx_timer0_set_oneshot,
.tick_resume = gt641xx_timer0_shutdown,
.event_handler = gt641xx_timer0_event_handler, .event_handler = gt641xx_timer0_event_handler,
}; };
......
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