C++ (Cpp) sp804_get_clock_rate Examples

Example #1

File: timer-sp.c Project: mildrock/overlay_plane_display

void __init __sp804_clockevents_init(void __iomem *base, unsigned int irq, struct clk *clk, const char *name)
{
	struct clock_event_device *evt = &sp804_clockevent;
	long rate;

	if (!clk)
		clk = clk_get_sys("sp804", name);
	if (IS_ERR(clk)) {
		pr_err("sp804: %s clock not found: %d\n", name,
			(int)PTR_ERR(clk));
		return;
	}

	rate = sp804_get_clock_rate(clk);
	if (rate < 0)
		return;

	clkevt_base = base;
	clkevt_reload = DIV_ROUND_CLOSEST(rate, HZ);
	evt->name = name;
	evt->irq = irq;
	evt->cpumask = cpu_possible_mask;

	writel(0, base + TIMER_CTRL);

	setup_irq(irq, &sp804_timer_irq);
	clockevents_config_and_register(evt, rate, 0xf, 0xffffffff);
}

Example #2

File: timer-sp.c Project: Jackeagle/android_kernel_sony_c2305

void __init sp804_clockevents_init(void __iomem *base, unsigned int irq,
	const char *name)
{
	struct clock_event_device *evt = &sp804_clockevent;
	long rate = sp804_get_clock_rate(name);

	if (rate < 0)
		return;

	clkevt_base = base;
	clkevt_reload = DIV_ROUND_CLOSEST(rate, HZ);
	evt->name = name;
	evt->irq = irq;

	setup_irq(irq, &sp804_timer_irq);
	clockevents_config_and_register(evt, rate, 0xf, 0xffffffff);
}

Example #3

File: timer-sp.c Project: CSCLOG/beaglebone

void __init sp804_clocksource_init(void __iomem *base, const char *name)
{
	long rate = sp804_get_clock_rate(name);

	if (rate < 0)
		return;

	/* setup timer 0 as free-running clocksource */
	writel(0, base + TIMER_CTRL);
	writel(0xffffffff, base + TIMER_LOAD);
	writel(0xffffffff, base + TIMER_VALUE);
	writel(TIMER_CTRL_32BIT | TIMER_CTRL_ENABLE | TIMER_CTRL_PERIODIC,
		base + TIMER_CTRL);

	clocksource_mmio_init(base + TIMER_VALUE, name,
		rate, 200, 32, clocksource_mmio_readl_down);
}

Example #4

File: timer-sp.c Project: JudsonWilson/rc3-linux

void __init sp804_clockevents_init(void __iomem *base, unsigned int irq,
	const char *name)
{
	struct clock_event_device *evt = &sp804_clockevent;
	long rate = sp804_get_clock_rate(name);

	if (rate < 0)
		return;

	clkevt_base = base;
	clkevt_reload = DIV_ROUND_CLOSEST(rate, HZ);

	evt->name = name;
	evt->irq = irq;
	evt->mult = div_sc(rate, NSEC_PER_SEC, evt->shift);
	evt->max_delta_ns = clockevent_delta2ns(0xffffffff, evt);
	evt->min_delta_ns = clockevent_delta2ns(0xf, evt);

	setup_irq(irq, &sp804_timer_irq);
	clockevents_register_device(evt);
}

Example #5

File: timer-sp804.c Project: Camedpuffer/linux

int  __init __sp804_clocksource_and_sched_clock_init(void __iomem *base,
						     const char *name,
						     struct clk *clk,
						     int use_sched_clock)
{
	long rate;

	if (!clk) {
		clk = clk_get_sys("sp804", name);
		if (IS_ERR(clk)) {
			pr_err("sp804: clock not found: %d\n",
			       (int)PTR_ERR(clk));
			return PTR_ERR(clk);
		}
	}

	rate = sp804_get_clock_rate(clk);
	if (rate < 0)
		return -EINVAL;

	/* setup timer 0 as free-running clocksource */
	writel(0, base + TIMER_CTRL);
	writel(0xffffffff, base + TIMER_LOAD);
	writel(0xffffffff, base + TIMER_VALUE);
	writel(TIMER_CTRL_32BIT | TIMER_CTRL_ENABLE | TIMER_CTRL_PERIODIC,
		base + TIMER_CTRL);

	clocksource_mmio_init(base + TIMER_VALUE, name,
		rate, 200, 32, clocksource_mmio_readl_down);

	if (use_sched_clock) {
		sched_clock_base = base;
		sched_clock_register(sp804_read, 32, rate);
	}

	return 0;
}