[POWERPC] PS3: Add os-area rtc_diff set/get routines

Updates for PS3 os-area rtc_diff set/get routines
o Add a new routine ps3_os_area_set_rtc_diff().
o Rename ps3_os_area_rtc_diff() to ps3_os_area_get_rtc_diff().
o Remove static variable rtc_shift with calls to ps3_os_area_get_rtc_diff().

Signed-off-by: Geoff Levand <geoffrey.levand@am.sony.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>

1 files changed, 3 insertions, 11 deletions

diff --git a/arch/powerpc/platforms/ps3/time.c b/arch/powerpc/platforms/ps3/time.c
index 802a9ccacb5e..d0daf7d6d3b2 100644
--- a/arch/powerpc/platforms/ps3/time.c
+++ b/arch/powerpc/platforms/ps3/time.c
@@ -50,12 +50,6 @@ static void __maybe_unused _dump_time(int time, const char *func,
         _dump_tm(&tm, func, line);
 }
 
-/**
- * rtc_shift - Difference in seconds between 1970 and the ps3 rtc value.
- */
-
-static s64 rtc_shift;
-
 void __init ps3_calibrate_decr(void)
 {
         int result;
@@ -66,8 +60,6 @@ void __init ps3_calibrate_decr(void)
 
         ppc_tb_freq = tmp;
         ppc_proc_freq = ppc_tb_freq * 40;
-
-        rtc_shift = ps3_os_area_rtc_diff();
 }
 
 static u64 read_rtc(void)
@@ -87,18 +79,18 @@ int ps3_set_rtc_time(struct rtc_time *tm)
         u64 now = mktime(tm->tm_year + 1900, tm->tm_mon + 1, tm->tm_mday,
                 tm->tm_hour, tm->tm_min, tm->tm_sec);
 
-        rtc_shift = now - read_rtc();
+        ps3_os_area_set_rtc_diff(now - read_rtc());
         return 0;
 }
 
 void ps3_get_rtc_time(struct rtc_time *tm)
 {
-        to_tm(read_rtc() + rtc_shift, tm);
+        to_tm(read_rtc() + ps3_os_area_get_rtc_diff(), tm);
         tm->tm_year -= 1900;
         tm->tm_mon -= 1;
 }
 
 unsigned long __init ps3_get_boot_time(void)
 {
-        return read_rtc() + rtc_shift;
+        return read_rtc() + ps3_os_area_get_rtc_diff();
 }