Commit Graph

5 Commits

Author SHA1 Message Date
John Stultz d3d8fee413 Revert "dw_apb_timer_of.c: Remove parts that were picoxcell-specific"
This reverts commit 55a68c23e0.

In order to avoid a collision with dw_apb_timer changes in
the arm-soc tree, revert this change.

I'm leaving it to the arm-soc folks to sort out if they want
to keep the other side of the collision or if they're just going
to back it all out and try again during the next release cycle.

Reported-by: Dinh Nguyen <dinguyen@altera.com>
Signed-off-by: John Stultz <john.stultz@linaro.org>
2013-06-18 16:02:04 -07:00
Pavel Machek 55a68c23e0 dw_apb_timer_of.c: Remove parts that were picoxcell-specific
It seems we made a mistake when creating dw_apb_timer_of.c:
picoxcell sched_clock had parts that were not related to
dw_apb_timer, yet we moved them to dw_apb_timer_of, and tried to
use them on socfpga.

This results in system where user/system time is not measured
properly, as demonstrated by

    time dd if=/dev/urandom of=/dev/zero bs=100000 count=100

So this patch switches sched_clock to hardware that exists on both
platforms, and adds missing of_node_put() in dw_apb_timer_init().

Signed-off-by: Pavel Machek <pavel@denx.de>
Acked-by: Jamie Iles <jamie@jamieiles.com>
Signed-off-by: John Stultz <john.stultz@linaro.org>
2013-05-28 14:00:58 -07:00
Thomas Gleixner fc1f7d5606 clocksource: apb_timer: Remove unsused function
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Acked-by: John Stultz <john.stultz@linaro.org>
Cc: Magnus Damm <magnus.damm@gmail.com>
Acked-by: Jamie Iles <jamie@jamieiles.com>
Link: http://lkml.kernel.org/r/20130425143435.558006195@linutronix.de
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2013-05-16 11:09:13 +02:00
Jamie Iles a1330228f9 dw_apb_timer: constify clocksource name
The clocksource name should be const for correctness.

Cc: John Stultz <johnstul@us.ibm.com>
Signed-off-by: Jamie Iles <jamie@jamieiles.com>
Signed-off-by: John Stultz <john.stultz@linaro.org>
2011-10-04 13:08:18 -07:00
Jamie Iles 06c3df4952 clocksource: apb: Share APB timer code with other platforms
The APB timers are an IP block from Synopsys (DesignWare APB timers)
and are also found in other systems including ARM SoC's.  This patch
adds functions for creating clock_event_devices and clocksources from
APB timers but does not do the resource allocation.  This is handled
in a higher layer to allow the timers to be created from multiple
methods such as platform_devices.

Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: Jacob Pan <jacob.jun.pan@linux.intel.com>
Signed-off-by: Jamie Iles <jamie@jamieiles.com>
Signed-off-by: John Stultz <john.stultz@linaro.org>
2011-06-27 15:16:21 -07:00