diff options
author | Daniel Vetter <daniel.vetter@ffwll.ch> | 2013-03-19 09:47:30 +0100 |
---|---|---|
committer | Daniel Vetter <daniel.vetter@ffwll.ch> | 2013-03-19 09:47:30 +0100 |
commit | 0d4a42f6bd298e826620585e766a154ab460617a (patch) | |
tree | 406d8f7778691d858dbe3e48e4bbb10e99c0a58a /drivers/clocksource/nomadik-mtu.c | |
parent | d62b4892f3d9f7dd2002e5309be10719d6805b0f (diff) | |
parent | a937536b868b8369b98967929045f1df54234323 (diff) |
Merge tag 'v3.9-rc3' into drm-intel-next-queued
Backmerge so that I can merge Imre Deak's coalesced sg entries fixes,
which depend upon the new for_each_sg_page introduce in
commit a321e91b6d73ed011ffceed384c40d2785cf723b
Author: Imre Deak <imre.deak@intel.com>
Date: Wed Feb 27 17:02:56 2013 -0800
lib/scatterlist: add simple page iterator
The merge itself is just two trivial conflicts:
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Diffstat (limited to 'drivers/clocksource/nomadik-mtu.c')
-rw-r--r-- | drivers/clocksource/nomadik-mtu.c | 45 |
1 files changed, 32 insertions, 13 deletions
diff --git a/drivers/clocksource/nomadik-mtu.c b/drivers/clocksource/nomadik-mtu.c index 8914c3c1c88b..071f6eadfea2 100644 --- a/drivers/clocksource/nomadik-mtu.c +++ b/drivers/clocksource/nomadik-mtu.c @@ -15,6 +15,7 @@ #include <linux/clocksource.h> #include <linux/clk.h> #include <linux/jiffies.h> +#include <linux/delay.h> #include <linux/err.h> #include <linux/platform_data/clocksource-nomadik-mtu.h> #include <asm/mach/time.h> @@ -64,6 +65,7 @@ static void __iomem *mtu_base; static bool clkevt_periodic; static u32 clk_prescale; static u32 nmdk_cycle; /* write-once */ +static struct delay_timer mtu_delay_timer; #ifdef CONFIG_NOMADIK_MTU_SCHED_CLOCK /* @@ -80,6 +82,11 @@ static u32 notrace nomadik_read_sched_clock(void) } #endif +static unsigned long nmdk_timer_read_current_timer(void) +{ + return ~readl_relaxed(mtu_base + MTU_VAL(0)); +} + /* Clockevent device: use one-shot mode */ static int nmdk_clkevt_next(unsigned long evt, struct clock_event_device *ev) { @@ -134,12 +141,32 @@ static void nmdk_clkevt_mode(enum clock_event_mode mode, } } +void nmdk_clksrc_reset(void) +{ + /* Disable */ + writel(0, mtu_base + MTU_CR(0)); + + /* ClockSource: configure load and background-load, and fire it up */ + writel(nmdk_cycle, mtu_base + MTU_LR(0)); + writel(nmdk_cycle, mtu_base + MTU_BGLR(0)); + + writel(clk_prescale | MTU_CRn_32BITS | MTU_CRn_ENA, + mtu_base + MTU_CR(0)); +} + +static void nmdk_clkevt_resume(struct clock_event_device *cedev) +{ + nmdk_clkevt_reset(); + nmdk_clksrc_reset(); +} + static struct clock_event_device nmdk_clkevt = { .name = "mtu_1", .features = CLOCK_EVT_FEAT_ONESHOT | CLOCK_EVT_FEAT_PERIODIC, .rating = 200, .set_mode = nmdk_clkevt_mode, .set_next_event = nmdk_clkevt_next, + .resume = nmdk_clkevt_resume, }; /* @@ -161,19 +188,6 @@ static struct irqaction nmdk_timer_irq = { .dev_id = &nmdk_clkevt, }; -void nmdk_clksrc_reset(void) -{ - /* Disable */ - writel(0, mtu_base + MTU_CR(0)); - - /* ClockSource: configure load and background-load, and fire it up */ - writel(nmdk_cycle, mtu_base + MTU_LR(0)); - writel(nmdk_cycle, mtu_base + MTU_BGLR(0)); - - writel(clk_prescale | MTU_CRn_32BITS | MTU_CRn_ENA, - mtu_base + MTU_CR(0)); -} - void __init nmdk_timer_init(void __iomem *base, int irq) { unsigned long rate; @@ -226,5 +240,10 @@ void __init nmdk_timer_init(void __iomem *base, int irq) /* Timer 1 is used for events, register irq and clockevents */ setup_irq(irq, &nmdk_timer_irq); nmdk_clkevt.cpumask = cpumask_of(0); + nmdk_clkevt.irq = irq; clockevents_config_and_register(&nmdk_clkevt, rate, 2, 0xffffffffU); + + mtu_delay_timer.read_current_timer = &nmdk_timer_read_current_timer; + mtu_delay_timer.freq = rate; + register_current_timer_delay(&mtu_delay_timer); } |