[POWERPC] Use mktime in timer sysdev

This makes the timer sysdev use mktime instead of rtc_tm_to_time,
since rtc_tm_to_time just calls mktime anyway, and this means we
don't have a dependency on rtc-lib.

Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: Paul Mackerras <paulus@samba.org>

2 files changed, 12 insertions, 7 deletions

diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig
index 882f8a1d2c7c..29012204c295 100644
--- a/arch/powerpc/Kconfig
+++ b/arch/powerpc/Kconfig
@@ -6,11 +6,6 @@ mainmenu "Linux/PowerPC Kernel Configuration"
 
 source "arch/powerpc/platforms/Kconfig.cputype"
 
-config PPC_PM_NEEDS_RTC_LIB
-        bool
-        select RTC_LIB
-        default y if PM
-
 config PPC32
         bool
         default y if !PPC64
diff --git a/arch/powerpc/sysdev/timer.c b/arch/powerpc/sysdev/timer.c
index 4a01748b4217..e81e7ec2e799 100644
--- a/arch/powerpc/sysdev/timer.c
+++ b/arch/powerpc/sysdev/timer.c
@@ -24,7 +24,12 @@ static int timer_resume(struct sys_device *dev)
 
         /* get current RTC time and convert to seconds */
         get_rtc_time(&cur_rtc_tm);
-        rtc_tm_to_time(&cur_rtc_tm, &cur_rtc_time);
+        cur_rtc_time = mktime(cur_rtc_tm.tm_year + 1900,
+                              cur_rtc_tm.tm_mon + 1,
+                              cur_rtc_tm.tm_mday,
+                              cur_rtc_tm.tm_hour,
+                              cur_rtc_tm.tm_min,
+                              cur_rtc_tm.tm_sec);
 
         diff = cur_rtc_time - suspend_rtc_time;
 
@@ -44,7 +49,12 @@ static int timer_suspend(struct sys_device *dev, pm_message_t state)
         WARN_ON(!ppc_md.get_rtc_time);
 
         get_rtc_time(&suspend_rtc_tm);
-        rtc_tm_to_time(&suspend_rtc_tm, &suspend_rtc_time);
+        suspend_rtc_time = mktime(suspend_rtc_tm.tm_year + 1900,
+                                  suspend_rtc_tm.tm_mon + 1,
+                                  suspend_rtc_tm.tm_mday,
+                                  suspend_rtc_tm.tm_hour,
+                                  suspend_rtc_tm.tm_min,
+                                  suspend_rtc_tm.tm_sec);
 
         return 0;
 }