[PATCH v5 6/8] clocksource/drivers/rockchip_timer: low level routines take rk_timer as parameter

Alexander Kochetkov
2017-01-24T12:17:02Z

Pass rk_timer instead of clock_event_device to low lever timer routines.
So that code could be reused by clocksource implementation.

Drop rk_base() and rk_ctrl().

This is refactoring step without functional changes.

Signed-off-by: Alexander Kochetkov <al.kochet@gmail.com>
Reviwed-by: Heiko Stübner <heiko@sntech.de>
---
drivers/clocksource/rockchip_timer.c | 57 ++++++++++++++++------------------
1 file changed, 27 insertions(+), 30 deletions(-)

diff --git a/drivers/clocksource/rockchip_timer.c b/drivers/clocksource/rockchip_timer.c
index 6d68d4c..a17dc61 100644
--- a/drivers/clocksource/rockchip_timer.c
+++ b/drivers/clocksource/rockchip_timer.c
@@ -53,70 +53,67 @@ static inline struct rk_timer *rk_timer(struct clock_event_device *ce)
return &rk_clock_event_device(ce)->timer;
}

-static inline void __iomem *rk_base(struct clock_event_device *ce)
+static inline void rk_timer_disable(struct rk_timer *timer)
{
- return rk_timer(ce)->base;
+ writel_relaxed(TIMER_DISABLE, timer->ctrl);
}

-static inline void __iomem *rk_ctrl(struct clock_event_device *ce)
-{
- return rk_timer(ce)->ctrl;
-}
-
-static inline void rk_timer_disable(struct clock_event_device *ce)
-{
- writel_relaxed(TIMER_DISABLE, rk_ctrl(ce));
-}
-
-static inline void rk_timer_enable(struct clock_event_device *ce, u32 flags)
+static inline void rk_timer_enable(struct rk_timer *timer, u32 flags)
{
writel_relaxed(TIMER_ENABLE | TIMER_INT_UNMASK | flags,
- rk_ctrl(ce));
+ timer->ctrl);
}

static void rk_timer_update_counter(unsigned long cycles,
- struct clock_event_device *ce)
+ struct rk_timer *timer)
{
- writel_relaxed(cycles, rk_base(ce) + TIMER_LOAD_COUNT0);
- writel_relaxed(0, rk_base(ce) + TIMER_LOAD_COUNT1);
+ writel_relaxed(cycles, timer->base + TIMER_LOAD_COUNT0);
+ writel_relaxed(0, timer->base + TIMER_LOAD_COUNT1);
}

-static void rk_timer_interrupt_clear(struct clock_event_device *ce)
+static void rk_timer_interrupt_clear(struct rk_timer *timer)
{
- writel_relaxed(1, rk_base(ce) + TIMER_INT_STATUS);
+ writel_relaxed(1, timer->base + TIMER_INT_STATUS);
}

static inline int rk_timer_set_next_event(unsigned long cycles,
struct clock_event_device *ce)
{
- rk_timer_disable(ce);
- rk_timer_update_counter(cycles, ce);
- rk_timer_enable(ce, TIMER_MODE_USER_DEFINED_COUNT);
+ struct rk_timer *timer = rk_timer(ce);
+
+ rk_timer_disable(timer);
+ rk_timer_update_counter(cycles, timer);
+ rk_timer_enable(timer, TIMER_MODE_USER_DEFINED_COUNT);
return 0;
}

static int rk_timer_shutdown(struct clock_event_device *ce)
{
- rk_timer_disable(ce);
+ struct rk_timer *timer = rk_timer(ce);
+
+ rk_timer_disable(timer);
return 0;
}

static int rk_timer_set_periodic(struct clock_event_device *ce)
{
- rk_timer_disable(ce);
- rk_timer_update_counter(rk_timer(ce)->freq / HZ - 1, ce);
- rk_timer_enable(ce, TIMER_MODE_FREE_RUNNING);
+ struct rk_timer *timer = rk_timer(ce);
+
+ rk_timer_disable(timer);
+ rk_timer_update_counter(timer->freq / HZ - 1, timer);
+ rk_timer_enable(timer, TIMER_MODE_FREE_RUNNING);
return 0;
}

static irqreturn_t rk_timer_interrupt(int irq, void *dev_id)
{
struct clock_event_device *ce = dev_id;
+ struct rk_timer *timer = rk_timer(ce);

- rk_timer_interrupt_clear(ce);
+ rk_timer_interrupt_clear(timer);

if (clockevent_state_oneshot(ce))
- rk_timer_disable(ce);
+ rk_timer_disable(timer);

ce->event_handler(ce);

@@ -183,8 +180,8 @@ static int __init rk_timer_init(struct device_node *np, u32 ctrl_reg)
ce->cpumask = cpu_possible_mask;
ce->rating = 250;

- rk_timer_interrupt_clear(ce);
- rk_timer_disable(ce);
+ rk_timer_interrupt_clear(timer);
+ rk_timer_disable(timer);

ret = request_irq(irq, rk_timer_interrupt, IRQF_TIMER, TIMER_NAME, ce);
if (ret) {
--
1.7.9.5