Messages in this thread Patch in this message |  | | | From | John Stultz <> | | Subject | [PATCH 12/14] sparc: Convert sparc to use read/update_persistent_clock | | Date | Wed, 3 Mar 2010 19:57:27 -0800 |
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This patch converts the sparc architecture to use the generic read_persistent_clock and update_persistent_clock interfaces, reducing the amount of arch specific code we have to maintain, and allowing for further cleanups in the future.
I have not built or tested this patch, so help from arch maintainers would be appreciated.
Cc: David S. Miller" <davem@davemloft.net> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: John Stultz <johnstul@us.ibm.com> --- arch/sparc/Kconfig | 2 +- arch/sparc/kernel/time_32.c | 15 +++++---------- 2 files changed, 6 insertions(+), 11 deletions(-) diff --git a/arch/sparc/Kconfig b/arch/sparc/Kconfig index 4097f6a..0e8ec2a 100644 --- a/arch/sparc/Kconfig +++ b/arch/sparc/Kconfig @@ -72,7 +72,7 @@ config ARCH_USES_GETTIMEOFFSET config GENERIC_CMOS_UPDATE bool - default y if SPARC64 + default y config GENERIC_CLOCKEVENTS bool diff --git a/arch/sparc/kernel/time_32.c b/arch/sparc/kernel/time_32.c index 0d4c09b..a3f1690 100644 --- a/arch/sparc/kernel/time_32.c +++ b/arch/sparc/kernel/time_32.c @@ -78,6 +78,11 @@ __volatile__ unsigned int *master_l10_counter; u32 (*do_arch_gettimeoffset)(void); +int update_persistent_clock(struct timespec now) +{ + return set_rtc_mmss(now.tv_sec); +} + /* * timer_interrupt() needs to keep up the real-time clock, * as well as call the "do_timer()" routine every clocktick @@ -101,16 +106,6 @@ static irqreturn_t timer_interrupt(int dummy, void *dev_id) do_timer(1); - /* Determine when to update the Mostek clock. */ - if (ntp_synced() && - xtime.tv_sec > last_rtc_update + 660 && - (xtime.tv_nsec / 1000) >= 500000 - ((unsigned) TICK_SIZE) / 2 && - (xtime.tv_nsec / 1000) <= 500000 + ((unsigned) TICK_SIZE) / 2) { - if (set_rtc_mmss(xtime.tv_sec) == 0) - last_rtc_update = xtime.tv_sec; - else - last_rtc_update = xtime.tv_sec - 600; /* do it again in 60 s */ - } write_sequnlock(&xtime_lock); #ifndef CONFIG_SMP -- 1.6.0.4
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