diff options
| author | Viresh Kumar <viresh.kumar@linaro.org> | 2015-07-03 11:54:35 +0300 |
|---|---|---|
| committer | Daniel Lezcano <daniel.lezcano@linaro.org> | 2015-08-10 12:40:40 +0300 |
| commit | 4134d29bfc4703d4000fc3a49ea4aeeae494d85a (patch) | |
| tree | 1f499559158eca35aa2aa8cee6dcdda06c087cf9 /drivers/clocksource/tegra20_timer.c | |
| parent | 6de6c977bdf61b1ca6f321aba468275c32952d79 (diff) | |
| download | linux-4134d29bfc4703d4000fc3a49ea4aeeae494d85a.tar.xz | |
clockevents/drivers/tegra20: Migrate to new 'set-state' interface
Migrate tegra20 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: Thierry Reding <treding@nvidia.com>
Cc: Stephen Warren <swarren@wwwdotorg.org>
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Diffstat (limited to 'drivers/clocksource/tegra20_timer.c')
| -rw-r--r-- | drivers/clocksource/tegra20_timer.c | 45 |
1 files changed, 24 insertions, 21 deletions
diff --git a/drivers/clocksource/tegra20_timer.c b/drivers/clocksource/tegra20_timer.c index 5a112d72fc2d..6ebda1177e79 100644 --- a/drivers/clocksource/tegra20_timer.c +++ b/drivers/clocksource/tegra20_timer.c @@ -72,33 +72,36 @@ static int tegra_timer_set_next_event(unsigned long cycles, return 0; } -static void tegra_timer_set_mode(enum clock_event_mode mode, - struct clock_event_device *evt) +static inline void timer_shutdown(struct clock_event_device *evt) { - u32 reg; - timer_writel(0, TIMER3_BASE + TIMER_PTV); +} - switch (mode) { - case CLOCK_EVT_MODE_PERIODIC: - reg = 0xC0000000 | ((1000000/HZ)-1); - timer_writel(reg, TIMER3_BASE + TIMER_PTV); - break; - case CLOCK_EVT_MODE_ONESHOT: - break; - case CLOCK_EVT_MODE_UNUSED: - case CLOCK_EVT_MODE_SHUTDOWN: - case CLOCK_EVT_MODE_RESUME: - break; - } +static int tegra_timer_shutdown(struct clock_event_device *evt) +{ + timer_shutdown(evt); + return 0; +} + +static int tegra_timer_set_periodic(struct clock_event_device *evt) +{ + u32 reg = 0xC0000000 | ((1000000 / HZ) - 1); + + timer_shutdown(evt); + timer_writel(reg, TIMER3_BASE + TIMER_PTV); + return 0; } static struct clock_event_device tegra_clockevent = { - .name = "timer0", - .rating = 300, - .features = CLOCK_EVT_FEAT_ONESHOT | CLOCK_EVT_FEAT_PERIODIC, - .set_next_event = tegra_timer_set_next_event, - .set_mode = tegra_timer_set_mode, + .name = "timer0", + .rating = 300, + .features = CLOCK_EVT_FEAT_ONESHOT | + CLOCK_EVT_FEAT_PERIODIC, + .set_next_event = tegra_timer_set_next_event, + .set_state_shutdown = tegra_timer_shutdown, + .set_state_periodic = tegra_timer_set_periodic, + .set_state_oneshot = tegra_timer_shutdown, + .tick_resume = tegra_timer_shutdown, }; static u64 notrace tegra_read_sched_clock(void) |