From e09b41010ba33a20a87472ee821fa407a5b8da36 Mon Sep 17 00:00:00 2001 From: José Pekkarinen Date: Mon, 11 Apr 2016 10:41:07 +0300 Subject: These changes are the raw update to linux-4.4.6-rt14. Kernel sources are taken from kernel.org, and rt patch from the rt wiki download page. MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit During the rebasing, the following patch collided: Force tick interrupt and get rid of softirq magic(I70131fb85). Collisions have been removed because its logic was found on the source already. Change-Id: I7f57a4081d9deaa0d9ccfc41a6c8daccdee3b769 Signed-off-by: José Pekkarinen --- kernel/drivers/clocksource/cadence_ttc_timer.c | 60 ++++++++++++++------------ 1 file changed, 32 insertions(+), 28 deletions(-) (limited to 'kernel/drivers/clocksource/cadence_ttc_timer.c') diff --git a/kernel/drivers/clocksource/cadence_ttc_timer.c b/kernel/drivers/clocksource/cadence_ttc_timer.c index 510c8a1d3..9be6018bd 100644 --- a/kernel/drivers/clocksource/cadence_ttc_timer.c +++ b/kernel/drivers/clocksource/cadence_ttc_timer.c @@ -16,7 +16,6 @@ */ #include -#include #include #include #include @@ -191,40 +190,42 @@ static int ttc_set_next_event(unsigned long cycles, } /** - * ttc_set_mode - Sets the mode of timer + * ttc_set_{shutdown|oneshot|periodic} - Sets the state of timer * - * @mode: Mode to be set * @evt: Address of clock event instance **/ -static void ttc_set_mode(enum clock_event_mode mode, - struct clock_event_device *evt) +static int ttc_shutdown(struct clock_event_device *evt) { struct ttc_timer_clockevent *ttce = to_ttc_timer_clkevent(evt); struct ttc_timer *timer = &ttce->ttc; u32 ctrl_reg; - switch (mode) { - case CLOCK_EVT_MODE_PERIODIC: - ttc_set_interval(timer, DIV_ROUND_CLOSEST(ttce->ttc.freq, - PRESCALE * HZ)); - break; - case CLOCK_EVT_MODE_ONESHOT: - case CLOCK_EVT_MODE_UNUSED: - case CLOCK_EVT_MODE_SHUTDOWN: - ctrl_reg = readl_relaxed(timer->base_addr + - TTC_CNT_CNTRL_OFFSET); - ctrl_reg |= TTC_CNT_CNTRL_DISABLE_MASK; - writel_relaxed(ctrl_reg, - timer->base_addr + TTC_CNT_CNTRL_OFFSET); - break; - case CLOCK_EVT_MODE_RESUME: - ctrl_reg = readl_relaxed(timer->base_addr + - TTC_CNT_CNTRL_OFFSET); - ctrl_reg &= ~TTC_CNT_CNTRL_DISABLE_MASK; - writel_relaxed(ctrl_reg, - timer->base_addr + TTC_CNT_CNTRL_OFFSET); - break; - } + ctrl_reg = readl_relaxed(timer->base_addr + TTC_CNT_CNTRL_OFFSET); + ctrl_reg |= TTC_CNT_CNTRL_DISABLE_MASK; + writel_relaxed(ctrl_reg, timer->base_addr + TTC_CNT_CNTRL_OFFSET); + return 0; +} + +static int ttc_set_periodic(struct clock_event_device *evt) +{ + struct ttc_timer_clockevent *ttce = to_ttc_timer_clkevent(evt); + struct ttc_timer *timer = &ttce->ttc; + + ttc_set_interval(timer, + DIV_ROUND_CLOSEST(ttce->ttc.freq, PRESCALE * HZ)); + return 0; +} + +static int ttc_resume(struct clock_event_device *evt) +{ + struct ttc_timer_clockevent *ttce = to_ttc_timer_clkevent(evt); + struct ttc_timer *timer = &ttce->ttc; + u32 ctrl_reg; + + ctrl_reg = readl_relaxed(timer->base_addr + TTC_CNT_CNTRL_OFFSET); + ctrl_reg &= ~TTC_CNT_CNTRL_DISABLE_MASK; + writel_relaxed(ctrl_reg, timer->base_addr + TTC_CNT_CNTRL_OFFSET); + return 0; } static int ttc_rate_change_clocksource_cb(struct notifier_block *nb, @@ -430,7 +431,10 @@ static void __init ttc_setup_clockevent(struct clk *clk, ttcce->ce.name = "ttc_clockevent"; ttcce->ce.features = CLOCK_EVT_FEAT_PERIODIC | CLOCK_EVT_FEAT_ONESHOT; ttcce->ce.set_next_event = ttc_set_next_event; - ttcce->ce.set_mode = ttc_set_mode; + ttcce->ce.set_state_shutdown = ttc_shutdown; + ttcce->ce.set_state_periodic = ttc_set_periodic; + ttcce->ce.set_state_oneshot = ttc_shutdown; + ttcce->ce.tick_resume = ttc_resume; ttcce->ce.rating = 200; ttcce->ce.irq = irq; ttcce->ce.cpumask = cpu_possible_mask; -- cgit 1.2.3-korg