The following commit has been merged into the timers/core branch of tip:
Commit-ID: 84fb64c28acd85ae4d29b9c81926bdfa5f1bf25e
Gitweb: https://git.kernel.org/tip/84fb64c28acd85ae4d29b9c81926bdfa5f1bf25e
Author: Joel Stanley <joel@xxxxxxxxx>
AuthorDate: Thu, 07 Nov 2019 20:12:15 +10:30
Committer: Daniel Lezcano <daniel.lezcano@xxxxxxxxxx>
CommitterDate: Fri, 21 Feb 2020 09:28:38 +01:00
clocksource/drivers/fttmr010: Parametrise shutdown
In preparation for supporting the ast2600 which uses a different method
to clear bits in the control register, use a callback for performing the
shutdown sequence.
Reviewed-by: Cédric Le Goater <clg@xxxxxxxx>
Reviewed-by: Linus Walleij <linus.walleij@xxxxxxxxxx>
Signed-off-by: Joel Stanley <joel@xxxxxxxxx>
Signed-off-by: Daniel Lezcano <daniel.lezcano@xxxxxxxxxx>
Link: https://lore.kernel.org/r/20191107094218.13210-2-joel@xxxxxxxxx
---
drivers/clocksource/timer-fttmr010.c | 19 ++++++++-----------
1 file changed, 8 insertions(+), 11 deletions(-)
diff --git a/drivers/clocksource/timer-fttmr010.c b/drivers/clocksource/timer-fttmr010.c
index fadff79..c2d30eb 100644
--- a/drivers/clocksource/timer-fttmr010.c
+++ b/drivers/clocksource/timer-fttmr010.c
@@ -97,6 +97,7 @@ struct fttmr010 {
bool is_aspeed;
u32 t1_enable_val;
struct clock_event_device clkevt;
+ int (*timer_shutdown)(struct clock_event_device *evt);
#ifdef CONFIG_ARM
struct delay_timer delay_timer;
#endif
@@ -140,9 +141,7 @@ static int fttmr010_timer_set_next_event(unsigned long cycles,
u32 cr;
/* Stop */
- cr = readl(fttmr010->base + TIMER_CR);
- cr &= ~fttmr010->t1_enable_val;
- writel(cr, fttmr010->base + TIMER_CR);
+ fttmr010->timer_shutdown(evt);
if (fttmr010->is_aspeed) {
/*
@@ -183,9 +182,7 @@ static int fttmr010_timer_set_oneshot(struct clock_event_device *evt)
u32 cr;
/* Stop */
- cr = readl(fttmr010->base + TIMER_CR);
- cr &= ~fttmr010->t1_enable_val;
- writel(cr, fttmr010->base + TIMER_CR);
+ fttmr010->timer_shutdown(evt);
/* Setup counter start from 0 or ~0 */
writel(0, fttmr010->base + TIMER1_COUNT);
@@ -211,9 +208,7 @@ static int fttmr010_timer_set_periodic(struct clock_event_device *evt)
u32 cr;
/* Stop */
- cr = readl(fttmr010->base + TIMER_CR);
- cr &= ~fttmr010->t1_enable_val;
- writel(cr, fttmr010->base + TIMER_CR);
+ fttmr010->timer_shutdown(evt);
/* Setup timer to fire at 1/HZ intervals. */
if (fttmr010->is_aspeed) {
@@ -350,6 +345,8 @@ static int __init fttmr010_common_init(struct device_node *np, bool is_aspeed)
fttmr010->tick_rate);
}
+ fttmr010->timer_shutdown = fttmr010_timer_shutdown;
+
/*
* Setup clockevent timer (interrupt-driven) on timer 1.
*/
@@ -370,10 +367,10 @@ static int __init fttmr010_common_init(struct device_node *np, bool is_aspeed)
fttmr010->clkevt.features = CLOCK_EVT_FEAT_PERIODIC |
CLOCK_EVT_FEAT_ONESHOT;
fttmr010->clkevt.set_next_event = fttmr010_timer_set_next_event;
- fttmr010->clkevt.set_state_shutdown = fttmr010_timer_shutdown;
+ fttmr010->clkevt.set_state_shutdown = fttmr010->timer_shutdown;
fttmr010->clkevt.set_state_periodic = fttmr010_timer_set_periodic;
fttmr010->clkevt.set_state_oneshot = fttmr010_timer_set_oneshot;
- fttmr010->clkevt.tick_resume = fttmr010_timer_shutdown;
+ fttmr010->clkevt.tick_resume = fttmr010->timer_shutdown;
fttmr010->clkevt.cpumask = cpumask_of(0);
fttmr010->clkevt.irq = irq;
clockevents_config_and_register(&fttmr010->clkevt,
|