diff mbox

[06/13] clocksource: vf_pit_timer: Support shutdown mode

Message ID 1411950226-21598-6-git-send-email-daniel.lezcano@linaro.org
State Accepted
Commit 04f7e3e5134b9517bd9a78a84a9ee0f982d3ebdd
Headers show

Commit Message

Daniel Lezcano Sept. 29, 2014, 12:23 a.m. UTC 
From: Stefan Agner <stefan@agner.ch>

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>
---
 drivers/clocksource/vf_pit_timer.c | 4 ++++
 1 file changed, 4 insertions(+)
diff mbox

Patch

diff --git a/drivers/clocksource/vf_pit_timer.c b/drivers/clocksource/vf_pit_timer.c
index a918bc4..b45ac62 100644
--- a/drivers/clocksource/vf_pit_timer.c
+++ b/drivers/clocksource/vf_pit_timer.c
@@ -93,6 +93,10 @@  static void pit_set_mode(enum clock_event_mode mode,
 	case CLOCK_EVT_MODE_PERIODIC:
 		pit_set_next_event(cycle_per_jiffy, evt);
 		break;
+	case CLOCK_EVT_MODE_SHUTDOWN:
+	case CLOCK_EVT_MODE_UNUSED:
+		pit_timer_disable();
+		break;
 	default:
 		break;
 	}