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path: root/kernel/drivers/clocksource/sh_cmt.c
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Diffstat (limited to 'kernel/drivers/clocksource/sh_cmt.c')
-rw-r--r--kernel/drivers/clocksource/sh_cmt.c72
1 files changed, 37 insertions, 35 deletions
diff --git a/kernel/drivers/clocksource/sh_cmt.c b/kernel/drivers/clocksource/sh_cmt.c
index b8ff3c64c..103c49362 100644
--- a/kernel/drivers/clocksource/sh_cmt.c
+++ b/kernel/drivers/clocksource/sh_cmt.c
@@ -538,7 +538,7 @@ static irqreturn_t sh_cmt_interrupt(int irq, void *dev_id)
if (ch->flags & FLAG_CLOCKEVENT) {
if (!(ch->flags & FLAG_SKIPEVENT)) {
- if (ch->ced.mode == CLOCK_EVT_MODE_ONESHOT) {
+ if (clockevent_state_oneshot(&ch->ced)) {
ch->next_match_value = ch->max_match_value;
ch->flags |= FLAG_REPROGRAM;
}
@@ -554,7 +554,7 @@ static irqreturn_t sh_cmt_interrupt(int irq, void *dev_id)
sh_cmt_clock_event_program_verify(ch, 1);
if (ch->flags & FLAG_CLOCKEVENT)
- if ((ch->ced.mode == CLOCK_EVT_MODE_SHUTDOWN)
+ if ((clockevent_state_shutdown(&ch->ced))
|| (ch->match_value == ch->next_match_value))
ch->flags &= ~FLAG_REPROGRAM;
}
@@ -661,6 +661,9 @@ static void sh_cmt_clocksource_suspend(struct clocksource *cs)
{
struct sh_cmt_channel *ch = cs_to_sh_cmt(cs);
+ if (!ch->cs_enabled)
+ return;
+
sh_cmt_stop(ch, FLAG_CLOCKSOURCE);
pm_genpd_syscore_poweroff(&ch->cmt->pdev->dev);
}
@@ -669,6 +672,9 @@ static void sh_cmt_clocksource_resume(struct clocksource *cs)
{
struct sh_cmt_channel *ch = cs_to_sh_cmt(cs);
+ if (!ch->cs_enabled)
+ return;
+
pm_genpd_syscore_poweron(&ch->cmt->pdev->dev);
sh_cmt_start(ch, FLAG_CLOCKSOURCE);
}
@@ -720,39 +726,37 @@ static void sh_cmt_clock_event_start(struct sh_cmt_channel *ch, int periodic)
sh_cmt_set_next(ch, ch->max_match_value);
}
-static void sh_cmt_clock_event_mode(enum clock_event_mode mode,
- struct clock_event_device *ced)
+static int sh_cmt_clock_event_shutdown(struct clock_event_device *ced)
+{
+ struct sh_cmt_channel *ch = ced_to_sh_cmt(ced);
+
+ sh_cmt_stop(ch, FLAG_CLOCKEVENT);
+ return 0;
+}
+
+static int sh_cmt_clock_event_set_state(struct clock_event_device *ced,
+ int periodic)
{
struct sh_cmt_channel *ch = ced_to_sh_cmt(ced);
/* deal with old setting first */
- switch (ced->mode) {
- case CLOCK_EVT_MODE_PERIODIC:
- case CLOCK_EVT_MODE_ONESHOT:
+ if (clockevent_state_oneshot(ced) || clockevent_state_periodic(ced))
sh_cmt_stop(ch, FLAG_CLOCKEVENT);
- break;
- default:
- break;
- }
- switch (mode) {
- case CLOCK_EVT_MODE_PERIODIC:
- dev_info(&ch->cmt->pdev->dev,
- "ch%u: used for periodic clock events\n", ch->index);
- sh_cmt_clock_event_start(ch, 1);
- break;
- case CLOCK_EVT_MODE_ONESHOT:
- dev_info(&ch->cmt->pdev->dev,
- "ch%u: used for oneshot clock events\n", ch->index);
- sh_cmt_clock_event_start(ch, 0);
- break;
- case CLOCK_EVT_MODE_SHUTDOWN:
- case CLOCK_EVT_MODE_UNUSED:
- sh_cmt_stop(ch, FLAG_CLOCKEVENT);
- break;
- default:
- break;
- }
+ dev_info(&ch->cmt->pdev->dev, "ch%u: used for %s clock events\n",
+ ch->index, periodic ? "periodic" : "oneshot");
+ sh_cmt_clock_event_start(ch, periodic);
+ return 0;
+}
+
+static int sh_cmt_clock_event_set_oneshot(struct clock_event_device *ced)
+{
+ return sh_cmt_clock_event_set_state(ced, 0);
+}
+
+static int sh_cmt_clock_event_set_periodic(struct clock_event_device *ced)
+{
+ return sh_cmt_clock_event_set_state(ced, 1);
}
static int sh_cmt_clock_event_next(unsigned long delta,
@@ -760,7 +764,7 @@ static int sh_cmt_clock_event_next(unsigned long delta,
{
struct sh_cmt_channel *ch = ced_to_sh_cmt(ced);
- BUG_ON(ced->mode != CLOCK_EVT_MODE_ONESHOT);
+ BUG_ON(!clockevent_state_oneshot(ced));
if (likely(ch->flags & FLAG_IRQCONTEXT))
ch->next_match_value = delta - 1;
else
@@ -814,7 +818,9 @@ static int sh_cmt_register_clockevent(struct sh_cmt_channel *ch,
ced->rating = 125;
ced->cpumask = cpu_possible_mask;
ced->set_next_event = sh_cmt_clock_event_next;
- ced->set_mode = sh_cmt_clock_event_mode;
+ ced->set_state_shutdown = sh_cmt_clock_event_shutdown;
+ ced->set_state_periodic = sh_cmt_clock_event_set_periodic;
+ ced->set_state_oneshot = sh_cmt_clock_event_set_oneshot;
ced->suspend = sh_cmt_clock_event_suspend;
ced->resume = sh_cmt_clock_event_resume;
@@ -929,9 +935,6 @@ static int sh_cmt_map_memory(struct sh_cmt_device *cmt)
static const struct platform_device_id sh_cmt_id_table[] = {
{ "sh-cmt-16", (kernel_ulong_t)&sh_cmt_info[SH_CMT_16BIT] },
{ "sh-cmt-32", (kernel_ulong_t)&sh_cmt_info[SH_CMT_32BIT] },
- { "sh-cmt-32-fast", (kernel_ulong_t)&sh_cmt_info[SH_CMT_32BIT_FAST] },
- { "sh-cmt-48", (kernel_ulong_t)&sh_cmt_info[SH_CMT_48BIT] },
- { "sh-cmt-48-gen2", (kernel_ulong_t)&sh_cmt_info[SH_CMT_48BIT_GEN2] },
{ }
};
MODULE_DEVICE_TABLE(platform, sh_cmt_id_table);
@@ -959,7 +962,6 @@ static int sh_cmt_setup(struct sh_cmt_device *cmt, struct platform_device *pdev)
unsigned int i;
int ret;
- memset(cmt, 0, sizeof(*cmt));
cmt->pdev = pdev;
raw_spin_lock_init(&cmt->lock);