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authorMaxime Ripard <maxime.ripard@free-electrons.com>2013-07-16 16:45:38 +0200
committerDaniel Lezcano <daniel.lezcano@linaro.org>2013-07-18 15:27:19 +0200
commitc2b852f77b0d4c71967b61848d666c7a25e17627 (patch)
tree292332917d078edef69979798008f6d8550e53f4 /drivers/clocksource
parent96651a0732d148f7e4a59cec6aa174049866cd0e (diff)
downloadop-kernel-dev-c2b852f77b0d4c71967b61848d666c7a25e17627.zip
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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: Maxime Ripard <maxime.ripard@free-electrons.com> Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Diffstat (limited to 'drivers/clocksource')
-rw-r--r--drivers/clocksource/sun4i_timer.c9
1 files changed, 3 insertions, 6 deletions
diff --git a/drivers/clocksource/sun4i_timer.c b/drivers/clocksource/sun4i_timer.c
index dd78b63..3217adc 100644
--- a/drivers/clocksource/sun4i_timer.c
+++ b/drivers/clocksource/sun4i_timer.c
@@ -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);
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