xtensa: drop platform_heartbeat

platform_heartbeat is called from the timer interrupt handler, but
there may be no periodic timer interrupts on xtensa, so the frequency of
platform_heartbeat calls may be unrelated to HZ. Drop the callback and
reimplement its only user with a timer.

Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>

1 files changed, 0 insertions, 4 deletions

diff --git a/arch/xtensa/kernel/time.c b/arch/xtensa/kernel/time.c
index 16b8a6273772..1c3dfea843ec 100644
--- a/arch/xtensa/kernel/time.c
+++ b/arch/xtensa/kernel/time.c
@@ -121,10 +121,6 @@ static irqreturn_t timer_interrupt(int irq, void *dev_id)
 
 	set_linux_timer(get_linux_timer());
 	evt->event_handler(evt);
-
-	/* Allow platform to do something useful (Wdog). */
-	platform_heartbeat();
-
 	return IRQ_HANDLED;
 }