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authorViresh Kumar <viresh.kumar@linaro.org>2015-07-16 16:56:21 +0530
committerDaniel Lezcano <daniel.lezcano@linaro.org>2015-08-10 11:41:00 +0200
commit9797529d8981b2d2dce116ba7cf0641e13a5774b (patch)
treed4e4152db363333de59a2ddaa4feed6df3eccbfd /arch/microblaze
parent677e6fe06378829a4263f65ee32c4b7242410636 (diff)
downloadlinux-sh-9797529d8981b2d2dce116ba7cf0641e13a5774b.tar.gz
microblaze/timer: Migrate to new 'set-state' interface
Migrate microblaze 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. We weren't doing anything in ->set_mode(RESUME or ONESHOT) and so tick_resume() set_state_oneshot() aren't implemented. Cc: Michal Simek <monstr@monstr.eu> Cc: "David S. Miller" <davem@davemloft.net> Cc: Richard Cochran <richardcochran@gmail.com> Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org> Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Diffstat (limited to 'arch/microblaze')
-rw-r--r--arch/microblaze/kernel/timer.c46
1 files changed, 19 insertions, 27 deletions
diff --git a/arch/microblaze/kernel/timer.c b/arch/microblaze/kernel/timer.c
index c8977450e28c..67e2ef48d2d0 100644
--- a/arch/microblaze/kernel/timer.c
+++ b/arch/microblaze/kernel/timer.c
@@ -122,37 +122,29 @@ static int xilinx_timer_set_next_event(unsigned long delta,
return 0;
}
-static void xilinx_timer_set_mode(enum clock_event_mode mode,
- struct clock_event_device *evt)
+static int xilinx_timer_shutdown(struct clock_event_device *evt)
{
- switch (mode) {
- case CLOCK_EVT_MODE_PERIODIC:
- pr_info("%s: periodic\n", __func__);
- xilinx_timer0_start_periodic(freq_div_hz);
- break;
- case CLOCK_EVT_MODE_ONESHOT:
- pr_info("%s: oneshot\n", __func__);
- break;
- case CLOCK_EVT_MODE_UNUSED:
- pr_info("%s: unused\n", __func__);
- break;
- case CLOCK_EVT_MODE_SHUTDOWN:
- pr_info("%s: shutdown\n", __func__);
- xilinx_timer0_stop();
- break;
- case CLOCK_EVT_MODE_RESUME:
- pr_info("%s: resume\n", __func__);
- break;
- }
+ pr_info("%s\n", __func__);
+ xilinx_timer0_stop();
+ return 0;
+}
+
+static int xilinx_timer_set_periodic(struct clock_event_device *evt)
+{
+ pr_info("%s\n", __func__);
+ xilinx_timer0_start_periodic(freq_div_hz);
+ return 0;
}
static struct clock_event_device clockevent_xilinx_timer = {
- .name = "xilinx_clockevent",
- .features = CLOCK_EVT_FEAT_ONESHOT | CLOCK_EVT_FEAT_PERIODIC,
- .shift = 8,
- .rating = 300,
- .set_next_event = xilinx_timer_set_next_event,
- .set_mode = xilinx_timer_set_mode,
+ .name = "xilinx_clockevent",
+ .features = CLOCK_EVT_FEAT_ONESHOT |
+ CLOCK_EVT_FEAT_PERIODIC,
+ .shift = 8,
+ .rating = 300,
+ .set_next_event = xilinx_timer_set_next_event,
+ .set_state_shutdown = xilinx_timer_shutdown,
+ .set_state_periodic = xilinx_timer_set_periodic,
};
static inline void timer_ack(void)