From mboxrd@z Thu Jan 1 00:00:00 1970 From: viresh.kumar@linaro.org (Viresh Kumar) Date: Fri, 3 Jul 2015 14:24:35 +0530 Subject: [PATCH 25/41] clocksource: tegra20: Migrate to new 'set-state' interface In-Reply-To: <559593F3.5030802@linaro.org> References: <1888421925acbfbcc453488d254faa154cd0fc2b.1434622147.git.viresh.kumar@linaro.org> <559593F3.5030802@linaro.org> Message-ID: <20150703085435.GC23297@linux> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org On 02-07-15, 21:41, Daniel Lezcano wrote: > >+ timer_writel(0, TIMER3_BASE + TIMER_PTV); > > Replace with 'tegra_timer_shutdown' Looks fine now ? ---------------8<----------------------- Message-Id: <2b6d1a867e100033f1f406fda39d358a4db80733.1435913653.git.viresh.kumar@linaro.org> From: Viresh Kumar Date: Fri, 27 Feb 2015 13:39:52 +0530 Subject: [PATCH] clocksource: 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 Cc: Stephen Warren Signed-off-by: Viresh Kumar --- drivers/clocksource/tegra20_timer.c | 45 ++++++++++++++++++++----------------- 1 file 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)