[MIPS] Deforest the function pointer jungle in the time code.

Hard to follow who is pointing what to where and why so it's simply getting
in the way of the time code renovation.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

1 files changed, 14 insertions, 31 deletions

diff --git a/arch/mips/kernel/time.c b/arch/mips/kernel/time.c
index 628a8ba6da57..9bbbd9b327fc 100644
--- a/arch/mips/kernel/time.c
+++ b/arch/mips/kernel/time.c
@@ -49,24 +49,19 @@
  * forward reference
  */
 DEFINE_SPINLOCK(rtc_lock);
+EXPORT_SYMBOL(rtc_lock);
 
-/*
- * By default we provide the null RTC ops
- */
-static unsigned long null_rtc_get_time(void)
+int __weak rtc_mips_set_time(unsigned long sec)
 {
-        return mktime(2000, 1, 1, 0, 0, 0);
+        return 0;
 }
+EXPORT_SYMBOL(rtc_mips_set_time);
 
-static int null_rtc_set_time(unsigned long sec)
+int __weak rtc_mips_set_mmss(unsigned long nowtime)
 {
-        return 0;
+        return rtc_mips_set_time(nowtime);
 }
 
-unsigned long (*rtc_mips_get_time)(void) = null_rtc_get_time;
-int (*rtc_mips_set_time)(unsigned long) = null_rtc_set_time;
-int (*rtc_mips_set_mmss)(unsigned long);
-
 int update_persistent_clock(struct timespec now)
 {
         return rtc_mips_set_mmss(now.tv_sec);
@@ -247,21 +242,18 @@ asmlinkage void ll_local_timer_interrupt(int irq)
 /*
  * time_init() - it does the following things.
  *
- * 1) board_time_init() -
+ * 1) plat_time_init() -
  *      a) (optional) set up RTC routines,
  *      b) (optional) calibrate and set the mips_hpt_frequency
  *          (only needed if you intended to use cpu counter as timer interrupt
  *           source)
- * 2) setup xtime based on rtc_mips_get_time().
- * 3) calculate a couple of cached variables for later usage
- * 4) plat_timer_setup() -
+ * 2) calculate a couple of cached variables for later usage
+ * 3) plat_timer_setup() -
  *      a) (optional) over-write any choices made above by time_init().
  *      b) machine specific code should setup the timer irqaction.
  *      c) enable the timer interrupt
  */
 
-void (*board_time_init)(void);
-
 unsigned int mips_hpt_frequency;
 
 static struct irqaction timer_irqaction = {
@@ -341,19 +333,13 @@ static void __init init_mips_clocksource(void)
         clocksource_register(&clocksource_mips);
 }
 
-void __init time_init(void)
+void __init __weak plat_time_init(void)
 {
-        if (board_time_init)
-                board_time_init();
-
-        if (!rtc_mips_set_mmss)
-                rtc_mips_set_mmss = rtc_mips_set_time;
-
-        xtime.tv_sec = rtc_mips_get_time();
-        xtime.tv_nsec = 0;
+}
 
-        set_normalized_timespec(&wall_to_monotonic,
-                                -xtime.tv_sec, -xtime.tv_nsec);
+void __init time_init(void)
+{
+        plat_time_init();
 
         /* Choose appropriate high precision timer routines.  */
         if (!cpu_has_counter && !clocksource_mips.read)
@@ -459,7 +445,4 @@ void to_tm(unsigned long tim, struct rtc_time *tm)
         tm->tm_wday = (gday + 4) % 7;   /* 1970/1/1 was Thursday */
 }
 
-EXPORT_SYMBOL(rtc_lock);
 EXPORT_SYMBOL(to_tm);
-EXPORT_SYMBOL(rtc_mips_set_time);
-EXPORT_SYMBOL(rtc_mips_get_time);