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Commit c2b852f7 authored by Maxime Ripard's avatar Maxime Ripard Committed by Daniel Lezcano
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clocksource: sun4i: Remove TIMER_SCAL variable 



The prescaler is only used when using the internal low frequency
oscillator (at 32kHz). Since we're using the higher frequency oscillator
at 24MHz, we can just remove it.

Signed-off-by: default avatarMaxime Ripard <maxime.ripard@free-electrons.com>
Signed-off-by: default avatarDaniel Lezcano <daniel.lezcano@linaro.org>
parent 96651a07

drivers/clocksource/sun4i_timer.c

+3 −6
Original line number Diff line number Diff line
@@ -34,8 +34,6 @@ 
#define TIMER_INTVAL_REG(val)	(0x10 * (val) + 0x14)

#define TIMER_CNTVAL_REG(val)	(0x10 * (val) + 0x18)



#define TIMER_SCAL		16



static void __iomem *timer_base;



/*
@@ -168,8 +166,7 @@ static void __init sun4i_timer_init(struct device_node *node) 
	clocksource_mmio_init(timer_base + TIMER_CNTVAL_REG(1), node->name,

			      rate, 300, 32, clocksource_mmio_readl_down);



	writel(rate / (TIMER_SCAL * HZ),

	       timer_base + TIMER_INTVAL_REG(0));

	writel(rate / HZ, timer_base + TIMER_INTVAL_REG(0));



	/* set clock source to HOSC, 16 pre-division */

	val = readl(timer_base + TIMER_CTL_REG(0));
@@ -192,8 +189,8 @@ static void __init sun4i_timer_init(struct device_node *node) 


	sun4i_clockevent.cpumask = cpumask_of(0);



	clockevents_config_and_register(&sun4i_clockevent, rate / TIMER_SCAL,

					0x1, 0xff);

	clockevents_config_and_register(&sun4i_clockevent, rate, 0x1,

					0xffffffff);

}

CLOCKSOURCE_OF_DECLARE(sun4i, "allwinner,sun4i-timer",

		       sun4i_timer_init);