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authorMaxime Ripard <maxime.ripard@free-electrons.com>2015-03-20 14:56:37 +0100
committerDaniel Lezcano <daniel.lezcano@linaro.org>2015-03-25 14:47:28 +0100
commit730258408dfbf4a419583d1d8e028871c6f16cca (patch)
treec179ce4deb747eae827619c90befb64c7d870dba
parent0433b0089216b4c0a484a8f91962ca1f118ddcd8 (diff)
clocksource: sun5i: Fix cpufreq interaction with sched_clockclockevents/4.0-rc5
The sched_clock we use on some system is this timer, and since we started using cpufreq, the cpu clock (that is one of the timer's clock indirect parent) now changes, along with the actual sched_clock rate. We can safely remove the sched_clock on those systems, since we have other reliable sched_clock in the system. Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com> Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org> Tested-by: Hans de Goede <hdegoede@redhat.com>
-rw-r--r--drivers/clocksource/timer-sun5i.c7
1 files changed, 0 insertions, 7 deletions
diff --git a/drivers/clocksource/timer-sun5i.c b/drivers/clocksource/timer-sun5i.c
index 5dcbf90b8015..58597fbcc046 100644
--- a/drivers/clocksource/timer-sun5i.c
+++ b/drivers/clocksource/timer-sun5i.c
@@ -17,7 +17,6 @@
#include <linux/irq.h>
#include <linux/irqreturn.h>
#include <linux/reset.h>
-#include <linux/sched_clock.h>
#include <linux/of.h>
#include <linux/of_address.h>
#include <linux/of_irq.h>
@@ -137,11 +136,6 @@ static struct irqaction sun5i_timer_irq = {
.dev_id = &sun5i_clockevent,
};
-static u64 sun5i_timer_sched_read(void)
-{
- return ~readl(timer_base + TIMER_CNTVAL_LO_REG(1));
-}
-
static void __init sun5i_timer_init(struct device_node *node)
{
struct reset_control *rstc;
@@ -172,7 +166,6 @@ static void __init sun5i_timer_init(struct device_node *node)
writel(TIMER_CTL_ENABLE | TIMER_CTL_RELOAD,
timer_base + TIMER_CTL_REG(1));
- sched_clock_register(sun5i_timer_sched_read, 32, rate);
clocksource_mmio_init(timer_base + TIMER_CNTVAL_LO_REG(1), node->name,
rate, 340, 32, clocksource_mmio_readl_down);