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Date: Thu, 19 Dec 2013 23:30:13 +0100
From: Daniel Lezcano <daniel.lezcano@...aro.org>
To: gregkh@...uxfoundation.org
Cc: linux-kernel@...r.kernel.org, stable@...r.kernel.org,
dinguyen@...era.com, baruch@...s.co.il, tglx@...utronix.de
Subject: [PATCH-3.12.y 1/2] clocksource: dw_apb_timer_of: Fix read_sched_clock
From: Dinh Nguyen <dinguyen@...era.com>
Upstream commit 85dc6ee
The read_sched_clock should return the ~value because the clock is a
countdown implementation. read_sched_clock() should be the same as
__apbt_read_clocksource().
Signed-off-by: Dinh Nguyen <dinguyen@...era.com>
Signed-off-by: Daniel Lezcano <daniel.lezcano@...aro.org>
---
drivers/clocksource/dw_apb_timer_of.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/clocksource/dw_apb_timer_of.c b/drivers/clocksource/dw_apb_timer_of.c
index 4cbae4f..33fd4ff 100644
--- a/drivers/clocksource/dw_apb_timer_of.c
+++ b/drivers/clocksource/dw_apb_timer_of.c
@@ -108,7 +108,7 @@ static void add_clocksource(struct device_node *source_timer)
static u32 read_sched_clock(void)
{
- return __raw_readl(sched_io_base);
+ return ~__raw_readl(sched_io_base);
}
static const struct of_device_id sptimer_ids[] __initconst = {
--
1.7.9.5
--
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