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authorArnd Bergmann <arnd@arndb.de>2020-09-24 16:37:37 +0200
committerArnd Bergmann <arnd@arndb.de>2020-10-30 21:57:05 +0100
commitd6444094042b4f4b4623dc1a2437f61309b9b34b (patch)
tree0ffc5fc790b78e17fda3efb60976c293a20406ce /arch/m68k/kernel
parent275e70e4b9dd4d59639e43fb859d0c953a374752 (diff)
downloadlinux-d6444094042b4f4b4623dc1a2437f61309b9b34b.tar.bz2
m68k: split heartbeat out of timer function
The heartbeat functionality is mostly separate from the actual timer interrupt handling, and it is only used on five platforms. Split it out into a separate function and call that directly from the timer irq on those platforms. Reviewed-by: Geert Uytterhoeven <geert@linux-m68k.org> Acked-by: Geert Uytterhoeven <geert@linux-m68k.org> Tested-by: Geert Uytterhoeven <geert@linux-m68k.org> Reviewed-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Diffstat (limited to 'arch/m68k/kernel')
-rw-r--r--arch/m68k/kernel/time.c7
1 files changed, 5 insertions, 2 deletions
diff --git a/arch/m68k/kernel/time.c b/arch/m68k/kernel/time.c
index c2697a4d4ddd..c05cec21b05f 100644
--- a/arch/m68k/kernel/time.c
+++ b/arch/m68k/kernel/time.c
@@ -45,8 +45,12 @@ static irqreturn_t timer_interrupt(int irq, void *dummy)
xtime_update(1);
update_process_times(user_mode(get_irq_regs()));
profile_tick(CPU_PROFILING);
+ return IRQ_HANDLED;
+}
#ifdef CONFIG_HEARTBEAT
+void timer_heartbeat(void)
+{
/* use power LED as a heartbeat instead -- much more useful
for debugging -- based on the version for PReP by Cort */
/* acts like an actual heart beat -- ie thump-thump-pause... */
@@ -68,9 +72,8 @@ static irqreturn_t timer_interrupt(int irq, void *dummy)
dist = period / 4;
}
}
-#endif /* CONFIG_HEARTBEAT */
- return IRQ_HANDLED;
}
+#endif /* CONFIG_HEARTBEAT */
#ifdef CONFIG_M68KCLASSIC
#if !IS_BUILTIN(CONFIG_RTC_DRV_GENERIC)