linux-toradex.git/arch/arm/common/timer-sp.c, branch v4.1.15

ARM: timer-sp: allow getting timer1 clock from DT to fallback to legacy clock

2014-06-24T19:16:03+00:00

The sp804 clocks may be specified in DT, but the kernel may still be using
legacy clocks. This is handled if a single clock for sp804 is present,
but not when 3 clocks are present.

This prevents Versatile platforms from breaking when the DT has clocks
added.

Signed-off-by: Rob Herring 
Cc: Russell King

ARM: SP804: make Integrator/CP timer pick clock from DT

2014-02-13T10:20:36+00:00

This modifies the SP804 driver so that the clock will be taken
from the device tree node for the timer.

Cc: Russell King 
Cc: Rob Herring 
Signed-off-by: Linus Walleij

Merge branch 'soc/sched_clock' into next/soc

2013-12-06T16:05:55+00:00

From Stephen Boyd:
* soc/sched_clock:
  ARM: versatile: Switch to sched_clock_register()
  ARM: orion: Switch to sched_clock_register()
  ARM: OMAP: Switch to sched_clock_register()
  ARM: iop: Switch to sched_clock_register()
  ARM: u300: Switch to sched_clock_register()
  ARM: sa1100: Switch to sched_clock_register()
  ARM: pxa: Switch to sched_clock_register()
  ARM: OMAP2+: Switch to sched_clock_register()
  ARM: OMAP1: Switch to sched_clock_register()
  ARM: msm: Switch to sched_clock_register()
  ARM: mmp: Switch to sched_clock_register()
  ARM: IXP4xx: Switch to sched_clock_register()
  ARM: integrator: Switch to sched_clock_register()
  ARM: imx: Switch to sched_clock_register()
  ARM: davinci: Switch to sched_clock_register()
  ARM: clps711x: Switch to sched_clock_register()
  ARM: timer-sp: Switch to sched_clock_register()

Signed-off-by: Kevin Hilman

ARM: timer-sp: Switch to sched_clock_register()

2013-11-21T23:40:59+00:00

The 32 bit sched_clock interface now supports 64 bits. Upgrade to
the 64 bit function to allow us to remove the 32 bit registration
interface. Also mark the read function notrace since we're here
and failure to do so would cause ftrace to break.

Cc: Russell King 
Signed-off-by: Stephen Boyd 
Signed-off-by: Kevin Hilman

ARM: 7856/1: timer-sp: remove deprecated IRQF_DISABLED

2013-10-29T11:06:17+00:00

This patch proposes to remove the use of the IRQF_DISABLED flag

It's a NOOP since 2.6.35 and it will be removed one day.

Signed-off-by: Michael Opdenacker 
Signed-off-by: Russell King

ARM: timer-sp: Set dynamic irq affinity

2013-08-21T22:18:53+00:00

When a cpu goes to a deep idle state where its local timer is shutdown, it
notifies the time frame work to use the broadcast timer instead.

Unfortunately, the broadcast device could wake up any CPU, including an idle one
which is not concerned by the wake up at all.

This implies, in the worst case, an idle CPU will wake up to send an IPI to
another idle cpu.

This patch fixes this for ARM platforms using timer-sp, by setting
CLOCK_EVT_FEAT_DYNIRQ feature.

Signed-off-by: Viresh Kumar 
Signed-off-by: Daniel Lezcano

sched_clock: Make ARM's sched_clock generic for all architectures

2013-06-12T21:02:13+00:00

Nothing about the sched_clock implementation in the ARM port is
specific to the architecture. Generalize the code so that other
architectures can use it by selecting GENERIC_SCHED_CLOCK.

Signed-off-by: Stephen Boyd 
[jstultz: Merge minor collisions with other patches in my tree]
Signed-off-by: John Stultz

ARM: integrator-cp: convert use CLKSRC_OF for timer init

2013-04-11T20:11:21+00:00

Move the integrator-cp timer init to timer-sp.c and use CLKSRC_OF. There is
no reason to use the aliases, so drop them from the init code.

The integrator-cp timers are mistakenly called sp804 timers in the dts, but
in fact they are not sp804 dual timers, but single timers with the same
programming model. Fix the dts to reflect this.

Signed-off-by: Rob Herring 
Acked-by: Linus Walleij

ARM: timer-sp: convert to use CLKSRC_OF init

2013-04-11T20:11:17+00:00

This adds CLKSRC_OF based init for sp804 timer. The clock initialization is
refactored to support retrieving the clock(s) from the DT.

Signed-off-by: Rob Herring

ARM: 7586/1: sp804: set cpumask to cpu_possible_mask for clock event device

2012-11-28T09:46:57+00:00

The SP804 driver statically initialises the cpumask of the clock event
device to be cpu_all_mask, which is derived from the compile-time
constant NR_CPUS. This breaks SMP_ON_UP systems where the interrupt
controller handling the sp804 doesn't have the irq_set_affinity callback
on the irq_chip, because the common timer code fails to identify the
device as cpu-local and ends up treating it as a broadcast device
instead.

This patch fixes the problem by using cpu_possible_mask at runtime,
which will correctly represent the possible CPUs when SMP_ON_UP is being
used.

Signed-off-by: Will Deacon 
Signed-off-by: Russell King