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path: root/drivers/clocksource/rockchip_timer.c
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Diffstat (limited to 'drivers/clocksource/rockchip_timer.c')
-rw-r--r--drivers/clocksource/rockchip_timer.c23
1 files changed, 10 insertions, 13 deletions
diff --git a/drivers/clocksource/rockchip_timer.c b/drivers/clocksource/rockchip_timer.c
index d3c1742ded1a..8c77a529d0d4 100644
--- a/drivers/clocksource/rockchip_timer.c
+++ b/drivers/clocksource/rockchip_timer.c
@@ -17,16 +17,16 @@
#define TIMER_NAME "rk_timer"
-#define TIMER_LOAD_COUNT0 0x00
-#define TIMER_LOAD_COUNT1 0x04
-#define TIMER_CONTROL_REG 0x10
-#define TIMER_INT_STATUS 0x18
+#define TIMER_LOAD_COUNT0 0x00
+#define TIMER_LOAD_COUNT1 0x04
+#define TIMER_CONTROL_REG 0x10
+#define TIMER_INT_STATUS 0x18
-#define TIMER_DISABLE 0x0
-#define TIMER_ENABLE 0x1
-#define TIMER_MODE_FREE_RUNNING (0 << 1)
-#define TIMER_MODE_USER_DEFINED_COUNT (1 << 1)
-#define TIMER_INT_UNMASK (1 << 2)
+#define TIMER_DISABLE 0x0
+#define TIMER_ENABLE 0x1
+#define TIMER_MODE_FREE_RUNNING (0 << 1)
+#define TIMER_MODE_USER_DEFINED_COUNT (1 << 1)
+#define TIMER_INT_UNMASK (1 << 2)
struct bc_timer {
struct clock_event_device ce;
@@ -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,
@@ -173,4 +169,5 @@ static void __init rk_timer_init(struct device_node *np)
clockevents_config_and_register(ce, bc_timer.freq, 1, UINT_MAX);
}
+
CLOCKSOURCE_OF_DECLARE(rk_timer, "rockchip,rk3288-timer", rk_timer_init);