[3.11.y.z extended stable] Patch "clocksource: dw_apb_timer_of: Fix read_sched_clock" has been added to staging queue

[Luis Henriques]

This is a note to let you know that I have just added a patch titled

    clocksource: dw_apb_timer_of: Fix read_sched_clock

to the linux-3.11.y-queue branch of the 3.11.y.z extended stable tree 
which can be found at:

 http://kernel.ubuntu.com/git?p=ubuntu/linux.git;a=shortlog;h=refs/heads/linux-3.11.y-queue

If you, or anyone else, feels it should not be added to this tree, please 
reply to this email.

For more information about the 3.11.y.z tree, see
https://wiki.ubuntu.com/Kernel/Dev/ExtendedStable

Thanks.
-Luis

------

>From 2665cd364be790023a95234184f6e9bbee5215de Mon Sep 17 00:00:00 2001
From: Dinh Nguyen <dinguyen at altera.com>
Date: Tue, 10 Dec 2013 19:49:18 +0100
Subject: clocksource: dw_apb_timer_of: Fix read_sched_clock

commit 85dc6ee1237c8a4a7742e6abab96a20389b7d682 upstream.

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 at altera.com>
Signed-off-by: Daniel Lezcano <daniel.lezcano at linaro.org>
Signed-off-by: Luis Henriques <luis.henriques at canonical.com>
---
 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 = {
--
1.8.3.2