clocksource/drivers/rockchip: Remove dsb() usage
authorCaesar Wang <wxt@rock-chips.com>
Fri, 25 Sep 2015 02:14:55 +0000 (10:14 +0800)
committerDaniel Lezcano <daniel.lezcano@linaro.org>
Tue, 15 Dec 2015 08:41:11 +0000 (09:41 +0100)
The dsb() instruction is pointless in this code.

Remove it.

That also fixes the ARM64 compilation issue.

Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Tested-by: Caesar Wang <wxt@rock-chips.com>
drivers/clocksource/rockchip_timer.c

index b14716b..8c77a52 100644 (file)
@@ -49,14 +49,12 @@ static inline void __iomem *rk_base(struct clock_event_device *ce)
 static inline void rk_timer_disable(struct clock_event_device *ce)
 {
        writel_relaxed(TIMER_DISABLE, rk_base(ce) + TIMER_CONTROL_REG);
-       dsb();
 }
 
 static inline void rk_timer_enable(struct clock_event_device *ce, u32 flags)
 {
        writel_relaxed(TIMER_ENABLE | TIMER_INT_UNMASK | flags,
                       rk_base(ce) + TIMER_CONTROL_REG);
-       dsb();
 }
 
 static void rk_timer_update_counter(unsigned long cycles,
@@ -64,13 +62,11 @@ static void rk_timer_update_counter(unsigned long cycles,
 {
        writel_relaxed(cycles, rk_base(ce) + TIMER_LOAD_COUNT0);
        writel_relaxed(0, rk_base(ce) + TIMER_LOAD_COUNT1);
-       dsb();
 }
 
 static void rk_timer_interrupt_clear(struct clock_event_device *ce)
 {
        writel_relaxed(1, rk_base(ce) + TIMER_INT_STATUS);
-       dsb();
 }
 
 static inline int rk_timer_set_next_event(unsigned long cycles,