[PATCH 1/3] LoongArch: Reduce min_delta for the arch clockevent device

[Huacai Chen]

Now the min_delta is 0x600 (1536) for LoongArch's constant clockevent
device. For a 100MHz hardware timer this means ~15us. This is a little
big, especially for PREEMPT_RT enabled kernels. So reduce it to 1000
(we don't want too small values to affect performance).

Signed-off-by: Huacai Chen <chenhuacai@xxxxxxxxxxx>
---
 arch/loongarch/kernel/time.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/loongarch/kernel/time.c b/arch/loongarch/kernel/time.c
index 46d7d40c87e3..e914b27a7c89 100644
--- a/arch/loongarch/kernel/time.c
+++ b/arch/loongarch/kernel/time.c
@@ -127,7 +127,7 @@ void sync_counter(void)
 int constant_clockevent_init(void)
 {
 	unsigned int cpu = smp_processor_id();
-	unsigned long min_delta = 0x600;
+	unsigned long min_delta = 1000;
 	unsigned long max_delta = (1UL << 48) - 1;
 	struct clock_event_device *cd;
 	static int irq = 0, timer_irq_installed = 0;
-- 
2.43.5