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authorXunlei Pang <pang.xunlei@linaro.org>2015-04-01 20:34:26 -0700
committerIngo Molnar <mingo@kernel.org>2015-04-03 08:18:23 +0200
commitcb850717b076d979058d52529e15f1736359d811 (patch)
treea2780af9ecf4a770aacf4c72b3efa268536c02a3 /drivers/clocksource/tegra20_timer.c
parenta0c2998f918e7e597d3c686c5f3d5a30d0382dd6 (diff)
ARM, clocksource/drivers: Provide read_boot_clock64() and read_persistent_clock64() and use them
As part of addressing "y2038 problem" for in-kernel uses, this patch converts read_boot_clock() to read_boot_clock64() and read_persistent_clock() to read_persistent_clock64() using timespec64 by converting clock_access_fn to use timespec64. Signed-off-by: Xunlei Pang <pang.xunlei@linaro.org> Signed-off-by: John Stultz <john.stultz@linaro.org> Acked-by: Thierry Reding <treding@nvidia.com> (for tegra part) Cc: Russell King <rmk@dyn-67.arm.linux.org.uk> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Link: http://lkml.kernel.org/r/1427945681-29972-7-git-send-email-john.stultz@linaro.org Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'drivers/clocksource/tegra20_timer.c')
-rw-r--r--drivers/clocksource/tegra20_timer.c10
1 files changed, 1 insertions, 9 deletions
diff --git a/drivers/clocksource/tegra20_timer.c b/drivers/clocksource/tegra20_timer.c
index 4a0a603edecc..5a112d72fc2d 100644
--- a/drivers/clocksource/tegra20_timer.c
+++ b/drivers/clocksource/tegra20_timer.c
@@ -141,14 +141,6 @@ static void tegra_read_persistent_clock64(struct timespec64 *ts)
*ts = persistent_ts;
}
-static void tegra_read_persistent_clock(struct timespec *ts)
-{
- struct timespec ts64;
-
- tegra_read_persistent_clock64(&ts64);
- *ts = timespec64_to_timespec(ts64);
-}
-
static unsigned long tegra_delay_timer_read_counter_long(void)
{
return readl(timer_reg_base + TIMERUS_CNTR_1US);
@@ -259,7 +251,7 @@ static void __init tegra20_init_rtc(struct device_node *np)
else
clk_prepare_enable(clk);
- register_persistent_clock(NULL, tegra_read_persistent_clock);
+ register_persistent_clock(NULL, tegra_read_persistent_clock64);
}
CLOCKSOURCE_OF_DECLARE(tegra20_rtc, "nvidia,tegra20-rtc", tegra20_init_rtc);