linux-kernel - [PATCH 13/18] ARM/omap1/timer32: Migrate to new 'set-state' interface

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Message-Id: <69ec063f6018b5931974e7c4ac7a24b1a075ca25.1437101996.git.viresh.kumar@linaro.org>
Date:	Fri, 17 Jul 2015 10:41:07 +0530
From:	Viresh Kumar <viresh.kumar@...aro.org>
To:	arm@...nel.org, olof@...om.net
Cc:	linaro-kernel@...ts.linaro.org, arnd.bergmann@...aro.org,
	linux-arm-kernel@...ts.infradead.org,
	Viresh Kumar <viresh.kumar@...aro.org>,
	Santosh Shilimkar <ssantosh@...nel.org>,
	Tony Lindgren <tony@...mide.com>,
	linux-kernel@...r.kernel.org (open list),
	linux-omap@...r.kernel.org (open list:OMAP SUPPORT),
	Russell King <linux@....linux.org.uk>
Subject: [PATCH 13/18] ARM/omap1/timer32: Migrate to new 'set-state' interface

Migrate omap timer32 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.

Acked-by: Santosh Shilimkar <ssantosh@...nel.org>
Acked-by: Tony Lindgren <tony@...mide.com>
Signed-off-by: Viresh Kumar <viresh.kumar@...aro.org>
---
 arch/arm/mach-omap1/timer32k.c | 33 ++++++++++++++++-----------------
 1 file changed, 16 insertions(+), 17 deletions(-)

diff --git a/arch/arm/mach-omap1/timer32k.c b/arch/arm/mach-omap1/timer32k.c
index 36bf174b3fac..0ae6c52a7d70 100644
--- a/arch/arm/mach-omap1/timer32k.c
+++ b/arch/arm/mach-omap1/timer32k.c
@@ -114,29 +114,28 @@ static int omap_32k_timer_set_next_event(unsigned long delta,
 	return 0;
 }
 
-static void omap_32k_timer_set_mode(enum clock_event_mode mode,
-				    struct clock_event_device *evt)
+static int omap_32k_timer_shutdown(struct clock_event_device *evt)
 {
 	omap_32k_timer_stop();
+	return 0;
+}
 
-	switch (mode) {
-	case CLOCK_EVT_MODE_PERIODIC:
-		omap_32k_timer_start(OMAP_32K_TIMER_TICK_PERIOD);
-		break;
-	case CLOCK_EVT_MODE_ONESHOT:
-	case CLOCK_EVT_MODE_UNUSED:
-	case CLOCK_EVT_MODE_SHUTDOWN:
-		break;
-	case CLOCK_EVT_MODE_RESUME:
-		break;
-	}
+static int omap_32k_timer_set_periodic(struct clock_event_device *evt)
+{
+	omap_32k_timer_stop();
+	omap_32k_timer_start(OMAP_32K_TIMER_TICK_PERIOD);
+	return 0;
 }
 
 static struct clock_event_device clockevent_32k_timer = {
-	.name		= "32k-timer",
-	.features       = CLOCK_EVT_FEAT_PERIODIC | CLOCK_EVT_FEAT_ONESHOT,
-	.set_next_event	= omap_32k_timer_set_next_event,
-	.set_mode	= omap_32k_timer_set_mode,
+	.name			= "32k-timer",
+	.features		= CLOCK_EVT_FEAT_PERIODIC |
+				  CLOCK_EVT_FEAT_ONESHOT,
+	.set_next_event		= omap_32k_timer_set_next_event,
+	.set_state_shutdown	= omap_32k_timer_shutdown,
+	.set_state_periodic	= omap_32k_timer_set_periodic,
+	.set_state_oneshot	= omap_32k_timer_shutdown,
+	.tick_resume		= omap_32k_timer_shutdown,
 };
 
 static irqreturn_t omap_32k_timer_interrupt(int irq, void *dev_id)
-- 
2.4.0

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