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clocksource: vf_pit_timer: Support shutdown mode 

In order to avoid waking up the system in a low power mode, the
clocksource should not generate interrupts anymore. Disable the PIT
timer interrupt when changing into the CLOCK_EVT_MODE_SHUTDOWN mode.

[dlezcano] : remove superfluous empty line

Signed-off-by: Stefan Agner <stefan@agner.ch>
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Acked-by: Bill Pringlemeir <bpringlemeir@nbsps.com>
This commit is contained in:
Stefan Agner 2014-09-29 01:50:05 +02:00 committed by Daniel Lezcano
parent e4a6b37875
commit 04f7e3e513
1 changed files with 4 additions and 0 deletions
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4
drivers/clocksource/vf_pit_timer.c
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@ -93,6 +93,10 @@ static void pit_set_mode(enum clock_event_mode mode,
case CLOCK_EVT_MODE_PERIODIC: case CLOCK_EVT_MODE_PERIODIC:
pit_set_next_event(cycle_per_jiffy, evt); pit_set_next_event(cycle_per_jiffy, evt);
break; break;
case CLOCK_EVT_MODE_SHUTDOWN:
case CLOCK_EVT_MODE_UNUSED:
pit_timer_disable();
break;
default: default:
break; break;
} }