mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
synced 2024-09-05 10:29:37 +00:00
ARM: pxa: convert timer suspend/resume to clock_event_device
Move PXA's timer suspend/resume functions from struct sys_timer pxa_timer into struct clock_event_device ckevt_pxa_osmr0. This will allow the sys_timer suspend/resume fields to be removed, and eventually lead to a complete removal of struct sys_timer. Cc: Russell King <linux@arm.linux.org.uk> Cc: Haojian Zhuang <haojian.zhuang@gmail.com> Acked-by: Eric Miao <eric.y.miao@gmail.com> Signed-off-by: Stephen Warren <swarren@nvidia.com>
This commit is contained in:
parent
49356ae94c
commit
5b30d5bf82
1 changed files with 38 additions and 38 deletions
|
@ -89,12 +89,50 @@ pxa_osmr0_set_mode(enum clock_event_mode mode, struct clock_event_device *dev)
|
|||
}
|
||||
}
|
||||
|
||||
#ifdef CONFIG_PM
|
||||
static unsigned long osmr[4], oier, oscr;
|
||||
|
||||
static void pxa_timer_suspend(struct clock_event_device *cedev)
|
||||
{
|
||||
osmr[0] = readl_relaxed(OSMR0);
|
||||
osmr[1] = readl_relaxed(OSMR1);
|
||||
osmr[2] = readl_relaxed(OSMR2);
|
||||
osmr[3] = readl_relaxed(OSMR3);
|
||||
oier = readl_relaxed(OIER);
|
||||
oscr = readl_relaxed(OSCR);
|
||||
}
|
||||
|
||||
static void pxa_timer_resume(struct clock_event_device *cedev)
|
||||
{
|
||||
/*
|
||||
* Ensure that we have at least MIN_OSCR_DELTA between match
|
||||
* register 0 and the OSCR, to guarantee that we will receive
|
||||
* the one-shot timer interrupt. We adjust OSMR0 in preference
|
||||
* to OSCR to guarantee that OSCR is monotonically incrementing.
|
||||
*/
|
||||
if (osmr[0] - oscr < MIN_OSCR_DELTA)
|
||||
osmr[0] += MIN_OSCR_DELTA;
|
||||
|
||||
writel_relaxed(osmr[0], OSMR0);
|
||||
writel_relaxed(osmr[1], OSMR1);
|
||||
writel_relaxed(osmr[2], OSMR2);
|
||||
writel_relaxed(osmr[3], OSMR3);
|
||||
writel_relaxed(oier, OIER);
|
||||
writel_relaxed(oscr, OSCR);
|
||||
}
|
||||
#else
|
||||
#define pxa_timer_suspend NULL
|
||||
#define pxa_timer_resume NULL
|
||||
#endif
|
||||
|
||||
static struct clock_event_device ckevt_pxa_osmr0 = {
|
||||
.name = "osmr0",
|
||||
.features = CLOCK_EVT_FEAT_ONESHOT,
|
||||
.rating = 200,
|
||||
.set_next_event = pxa_osmr0_set_next_event,
|
||||
.set_mode = pxa_osmr0_set_mode,
|
||||
.suspend = pxa_timer_suspend,
|
||||
.resume = pxa_timer_resume,
|
||||
};
|
||||
|
||||
static struct irqaction pxa_ost0_irq = {
|
||||
|
@ -127,44 +165,6 @@ static void __init pxa_timer_init(void)
|
|||
clockevents_register_device(&ckevt_pxa_osmr0);
|
||||
}
|
||||
|
||||
#ifdef CONFIG_PM
|
||||
static unsigned long osmr[4], oier, oscr;
|
||||
|
||||
static void pxa_timer_suspend(void)
|
||||
{
|
||||
osmr[0] = readl_relaxed(OSMR0);
|
||||
osmr[1] = readl_relaxed(OSMR1);
|
||||
osmr[2] = readl_relaxed(OSMR2);
|
||||
osmr[3] = readl_relaxed(OSMR3);
|
||||
oier = readl_relaxed(OIER);
|
||||
oscr = readl_relaxed(OSCR);
|
||||
}
|
||||
|
||||
static void pxa_timer_resume(void)
|
||||
{
|
||||
/*
|
||||
* Ensure that we have at least MIN_OSCR_DELTA between match
|
||||
* register 0 and the OSCR, to guarantee that we will receive
|
||||
* the one-shot timer interrupt. We adjust OSMR0 in preference
|
||||
* to OSCR to guarantee that OSCR is monotonically incrementing.
|
||||
*/
|
||||
if (osmr[0] - oscr < MIN_OSCR_DELTA)
|
||||
osmr[0] += MIN_OSCR_DELTA;
|
||||
|
||||
writel_relaxed(osmr[0], OSMR0);
|
||||
writel_relaxed(osmr[1], OSMR1);
|
||||
writel_relaxed(osmr[2], OSMR2);
|
||||
writel_relaxed(osmr[3], OSMR3);
|
||||
writel_relaxed(oier, OIER);
|
||||
writel_relaxed(oscr, OSCR);
|
||||
}
|
||||
#else
|
||||
#define pxa_timer_suspend NULL
|
||||
#define pxa_timer_resume NULL
|
||||
#endif
|
||||
|
||||
struct sys_timer pxa_timer = {
|
||||
.init = pxa_timer_init,
|
||||
.suspend = pxa_timer_suspend,
|
||||
.resume = pxa_timer_resume,
|
||||
};
|
||||
|
|
Loading…
Reference in a new issue