From: Anton Blanchard Date: Mon, 1 Oct 2018 23:01:05 +0000 (+1000) Subject: powerpc/time: Add set_state_oneshot_stopped decrementer callback X-Git-Url: http://git.cdn.openwrt.org/?a=commitdiff_plain;h=817593604e5b244dc55344d298d96122457c20bd;p=openwrt%2Fstaging%2Fblogic.git powerpc/time: Add set_state_oneshot_stopped decrementer callback If CONFIG_PPC_WATCHDOG is enabled we always cap the decrementer to 0x7fffffff: if (IS_ENABLED(CONFIG_PPC_WATCHDOG)) set_dec(0x7fffffff); else set_dec(decrementer_max); If there are no future events, we don't reprogram the decrementer after this and we end up with 0x7fffffff even on a large decrementer capable system. As suggested by Nick, add a set_state_oneshot_stopped callback so we program the decrementer with decrementer_max if there are no future events. Signed-off-by: Anton Blanchard Signed-off-by: Michael Ellerman --- diff --git a/arch/powerpc/kernel/time.c b/arch/powerpc/kernel/time.c index 6a1f0a084ca3..40868f3ee113 100644 --- a/arch/powerpc/kernel/time.c +++ b/arch/powerpc/kernel/time.c @@ -111,6 +111,7 @@ struct clock_event_device decrementer_clockevent = { .rating = 200, .irq = 0, .set_next_event = decrementer_set_next_event, + .set_state_oneshot_stopped = decrementer_shutdown, .set_state_shutdown = decrementer_shutdown, .tick_resume = decrementer_shutdown, .features = CLOCK_EVT_FEAT_ONESHOT |