Re: [PATCH 2/6] clocksource: arm_global_timer: Migrate to new 'set-state' interface

From: Daniel Lezcano
Date: Thu Jun 11 2015 - 10:50:04 EST


On 06/08/2015 03:40 PM, Viresh Kumar wrote:
Migrate arm_global_timer driver to the new 'set-state' interface
provided by the 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: Srinivas Kandagatla <srinivas.kandagatla@xxxxxxxxx>
Cc: Maxime Coquelin <maxime.coquelin@xxxxxx>
Cc: Patrice Chotard <patrice.chotard@xxxxxx>
Signed-off-by: Viresh Kumar <viresh.kumar@xxxxxxxxxx>
---
drivers/clocksource/arm_global_timer.c | 37 ++++++++++++++++------------------

Acked-by: Daniel Lezcano <daniel.lezcano@xxxxxxxxxx>

- clk->set_mode = gt_clockevent_set_mode;
+ clk->set_state_shutdown = gt_clockevent_shutdown;
+ clk->set_state_periodic = gt_clockevent_set_periodic;
+ clk->set_state_oneshot = gt_clockevent_shutdown;

nit: it sounds weird to use the same function as the purpose of the patch is use the new API which is to ventilate those functions (anyway ...)

clk->set_next_event = gt_clockevent_set_next_event;
clk->cpumask = cpumask_of(cpu);
clk->rating = 300;
@@ -184,7 +181,7 @@ static int gt_clockevents_init(struct clock_event_device *clk)

static void gt_clockevents_stop(struct clock_event_device *clk)
{
- gt_clockevent_set_mode(CLOCK_EVT_MODE_UNUSED, clk);
+ gt_clockevent_shutdown(clk);
disable_percpu_irq(clk->irq);
}


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