linux-kernel - [PATCH 18/23] tile/time: Migrate to new 'set-state' interface

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Message-Id: <7eb7fb0311b83bfb605188c130604f7090053eb6.1437044518.git.viresh.kumar@linaro.org>
Date:	Thu, 16 Jul 2015 16:56:30 +0530
From:	Viresh Kumar <viresh.kumar@...aro.org>
To:	Thomas Gleixner <tglx@...utronix.de>,
	Daniel Lezcano <daniel.lezcano@...aro.org>
Cc:	linaro-kernel@...ts.linaro.org, linux-kernel@...r.kernel.org,
	Viresh Kumar <viresh.kumar@...aro.org>,
	Chris Metcalf <cmetcalf@...hip.com>,
	Christoph Lameter <cl@...ux.com>,
	Joe Perches <joe@...ches.com>,
	John Stultz <john.stultz@...aro.org>,
	Peter Zijlstra <peterz@...radead.org>,
	Tejun Heo <tj@...nel.org>
Subject: [PATCH 18/23] tile/time: Migrate to new 'set-state' interface

Migrate tile 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: Chris Metcalf <cmetcalf@...hip.com>
Signed-off-by: Viresh Kumar <viresh.kumar@...aro.org>
---
 arch/tile/kernel/time.c | 8 +++++---
 1 file changed, 5 insertions(+), 3 deletions(-)

diff --git a/arch/tile/kernel/time.c b/arch/tile/kernel/time.c
index 00178ecf9aea..178989e6d3e3 100644
--- a/arch/tile/kernel/time.c
+++ b/arch/tile/kernel/time.c
@@ -140,10 +140,10 @@ static int tile_timer_set_next_event(unsigned long ticks,
  * Whenever anyone tries to change modes, we just mask interrupts
  * and wait for the next event to get set.
  */
-static void tile_timer_set_mode(enum clock_event_mode mode,
-				struct clock_event_device *evt)
+static int tile_timer_shutdown(struct clock_event_device *evt)
 {
 	arch_local_irq_mask_now(INT_TILE_TIMER);
+	return 0;
 }
 
 /*
@@ -157,7 +157,9 @@ static DEFINE_PER_CPU(struct clock_event_device, tile_timer) = {
 	.rating = 100,
 	.irq = -1,
 	.set_next_event = tile_timer_set_next_event,
-	.set_mode = tile_timer_set_mode,
+	.set_state_shutdown = tile_timer_shutdown,
+	.set_state_oneshot = tile_timer_shutdown,
+	.tick_resume = tile_timer_shutdown,
 };
 
 void setup_tile_timer(void)
-- 
2.4.0

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