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This reverts commit 55a68c23e0a675b2b8ac2656fd6edbf98b78e4c6.
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 <[email protected]>
Signed-off-by: John Stultz <[email protected]>
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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 <[email protected]>
Acked-by: Jamie Iles <[email protected]>
Signed-off-by: John Stultz <[email protected]>
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Signed-off-by: Thomas Gleixner <[email protected]>
Acked-by: John Stultz <[email protected]>
Cc: Magnus Damm <[email protected]>
Acked-by: Jamie Iles <[email protected]>
Link: http://lkml.kernel.org/r/[email protected]
Signed-off-by: Thomas Gleixner <[email protected]>
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The clocksource name should be const for correctness.
Cc: John Stultz <[email protected]>
Signed-off-by: Jamie Iles <[email protected]>
Signed-off-by: John Stultz <[email protected]>
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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 <[email protected]>
Cc: Ingo Molnar <[email protected]>
Cc: "H. Peter Anvin" <[email protected]>
Cc: Jacob Pan <[email protected]>
Signed-off-by: Jamie Iles <[email protected]>
Signed-off-by: John Stultz <[email protected]>
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