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authorViresh Kumar <viresh.kumar@linaro.org>2015-06-18 13:54:35 +0300
committerDaniel Lezcano <daniel.lezcano@linaro.org>2015-08-10 12:40:38 +0300
commit19a9ffb3d6e9ed1d3a46aee18d0b7f8eff41c82b (patch)
tree7672b1d3f083d3d088547aac63634de8fd6df9cf /drivers/clocksource/sh_mtu2.c
parent051b782e2406af7f831602c70f887ca9b510b511 (diff)
downloadlinux-19a9ffb3d6e9ed1d3a46aee18d0b7f8eff41c82b.tar.xz
clockevents/drivers/sh_mtu2: Migrate to new 'set-state' interface
Migrate sh_mtu2 driver to the new 'set-state' interface provided by clockevents core, the earlier 'set-mode' interface is marked obsolete now. This also enables us to implement callbacks for new states of clockevent devices, for example: ONESHOT_STOPPED. Cc: Magnus Damm <damm+renesas@opensource.se> Cc: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Cc: Paul Mundt <lethal@linux-sh.org> Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org> Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org> Acked-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Diffstat (limited to 'drivers/clocksource/sh_mtu2.c')
-rw-r--r--drivers/clocksource/sh_mtu2.c42
1 files changed, 16 insertions, 26 deletions
diff --git a/drivers/clocksource/sh_mtu2.c b/drivers/clocksource/sh_mtu2.c
index 3d88698cf2b8..f1985da8113f 100644
--- a/drivers/clocksource/sh_mtu2.c
+++ b/drivers/clocksource/sh_mtu2.c
@@ -276,36 +276,25 @@ static struct sh_mtu2_channel *ced_to_sh_mtu2(struct clock_event_device *ced)
return container_of(ced, struct sh_mtu2_channel, ced);
}
-static void sh_mtu2_clock_event_mode(enum clock_event_mode mode,
- struct clock_event_device *ced)
+static int sh_mtu2_clock_event_shutdown(struct clock_event_device *ced)
{
struct sh_mtu2_channel *ch = ced_to_sh_mtu2(ced);
- int disabled = 0;
- /* deal with old setting first */
- switch (ced->mode) {
- case CLOCK_EVT_MODE_PERIODIC:
+ sh_mtu2_disable(ch);
+ return 0;
+}
+
+static int sh_mtu2_clock_event_set_periodic(struct clock_event_device *ced)
+{
+ struct sh_mtu2_channel *ch = ced_to_sh_mtu2(ced);
+
+ if (clockevent_state_periodic(ced))
sh_mtu2_disable(ch);
- disabled = 1;
- break;
- default:
- break;
- }
- switch (mode) {
- case CLOCK_EVT_MODE_PERIODIC:
- dev_info(&ch->mtu->pdev->dev,
- "ch%u: used for periodic clock events\n", ch->index);
- sh_mtu2_enable(ch);
- break;
- case CLOCK_EVT_MODE_UNUSED:
- if (!disabled)
- sh_mtu2_disable(ch);
- break;
- case CLOCK_EVT_MODE_SHUTDOWN:
- default:
- break;
- }
+ dev_info(&ch->mtu->pdev->dev, "ch%u: used for periodic clock events\n",
+ ch->index);
+ sh_mtu2_enable(ch);
+ return 0;
}
static void sh_mtu2_clock_event_suspend(struct clock_event_device *ced)
@@ -327,7 +316,8 @@ static void sh_mtu2_register_clockevent(struct sh_mtu2_channel *ch,
ced->features = CLOCK_EVT_FEAT_PERIODIC;
ced->rating = 200;
ced->cpumask = cpu_possible_mask;
- ced->set_mode = sh_mtu2_clock_event_mode;
+ ced->set_state_shutdown = sh_mtu2_clock_event_shutdown;
+ ced->set_state_periodic = sh_mtu2_clock_event_set_periodic;
ced->suspend = sh_mtu2_clock_event_suspend;
ced->resume = sh_mtu2_clock_event_resume;