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Commit 82e627eb authored by Linus Torvalds's avatar Linus Torvalds
Browse files

Merge branch 'timers-core-for-linus' of... 

Merge branch 'timers-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip into next

Pull timer core updates from Thomas Gleixner:
 "This time you get nothing really exciting:
   - A huge update to the sh* clocksource drivers
   - Support for two more ARM SoCs
   - Removal of the deprecated setup_sched_clock() API
   - The usual pile of fixlets all over the place"

* 'timers-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (23 commits)
  clocksource: Add Freescale FlexTimer Module (FTM) timer support
  ARM: dts: vf610: Add Freescale FlexTimer Module timer node.
  clocksource: ftm: Add FlexTimer Module (FTM) Timer devicetree Documentation
  clocksource: sh_tmu: Remove unnecessary OOM messages
  clocksource: sh_mtu2: Remove unnecessary OOM messages
  clocksource: sh_cmt: Remove unnecessary OOM messages
  clocksource: em_sti: Remove unnecessary OOM messages
  clocksource: dw_apb_timer_of: Do not trace read_sched_clock
  clocksource: Fix clocksource_mmio_readX_down
  clocksource: Fix type confusion for clocksource_mmio_readX_Y
  clocksource: sh_tmu: Fix channel IRQ retrieval in legacy case
  clocksource: qcom: Implement read_current_timer for udelay
  ntp: Make is_error_status() use its argument
  ntp: Convert simple_strtol to kstrtol
  timer_stats/doc: Fix /proc/timer_stats documentation
  sched_clock: Remove deprecated setup_sched_clock() API
  ARM: sun6i: a31: Add support for the High Speed Timers
  clocksource: sun5i: Add support for reset controller
  clocksource: efm32: use $vendor,$device scheme for compatible string
  KConfig: Vexpress: build the ARM_GLOBAL_TIMER with vexpress platform
  ...
parents f1a7cd0f 331b483f

Documentation/devicetree/bindings/arm/global_timer.txt

+5 −2
Original line number Diff line number Diff line
@@ -4,8 +4,11 @@ 


** Timer node required properties:



- compatible : Should be "arm,cortex-a9-global-timer"

		Driver supports versions r2p0 and above.

- compatible : should contain

	     * "arm,cortex-a5-global-timer" for Cortex-A5 global timers.

	     * "arm,cortex-a9-global-timer" for Cortex-A9 global

	         timers or any compatible implementation. Note: driver

	         supports versions r2p0 and above.



- interrupts : One interrupt to each core

Documentation/devicetree/bindings/timer/allwinner,sun5i-a13-hstimer.txt

+4 −0
Original line number Diff line number Diff line
@@ -9,6 +9,9 @@ Required properties: 
		one)

- clocks: phandle to the source clock (usually the AHB clock)



Optionnal properties:

- resets: phandle to a reset controller asserting the timer



Example:



timer@01c60000 {
@@ -19,4 +22,5 @@ timer@01c60000 { 
		     <0 53 1>,

		     <0 54 1>;

	clocks = <&ahb1_gates 19>;

	resets = <&ahb1rst 19>;

};

Documentation/devicetree/bindings/timer/efm32,timer.txt→Documentation/devicetree/bindings/timer/energymicro,efm32-timer.txt

+2 −2
Original line number Diff line number Diff line
@@ -6,7 +6,7 @@ channels and can be used as PWM or Quadrature Decoder. Available clock sources 
are the cpu's HFPERCLK (with a 10-bit prescaler) or an external pin.



Required properties:

- compatible : Should be efm32,timer

- compatible : Should be "energymicro,efm32-timer"

- reg : Address and length of the register set

- clocks : Should contain a reference to the HFPERCLK
@@ -16,7 +16,7 @@ Optional properties: 
Example:



timer@40010c00 {

	compatible = "efm32,timer";

	compatible = "energymicro,efm32-timer";

	reg = <0x40010c00 0x400>;

	interrupts = <14>;

	clocks = <&cmu clk_HFPERCLKTIMER3>;

Documentation/devicetree/bindings/timer/fsl,ftm-timer.txt

0 → 100644
+31 −0
Original line number Diff line number Diff line 
Freescale FlexTimer Module (FTM) Timer



Required properties:



- compatible : should be "fsl,ftm-timer"

- reg : Specifies base physical address and size of the register sets for the

  clock event device and clock source device.

- interrupts : Should be the clock event device interrupt.

- clocks : The clocks provided by the SoC to drive the timer, must contain an

  entry for each entry in clock-names.

- clock-names : Must include the following entries:

  o "ftm-evt"

  o "ftm-src"

  o "ftm-evt-counter-en"

  o "ftm-src-counter-en"

- big-endian: One boolean property, the big endian mode will be in use if it is

  present, or the little endian mode will be in use for all the device registers.



Example:

ftm: ftm@400b8000 {

	compatible = "fsl,ftm-timer";

	reg = <0x400b8000 0x1000 0x400b9000 0x1000>;

	interrupts = <0 44 IRQ_TYPE_LEVEL_HIGH>;

	clock-names = "ftm-evt", "ftm-src",

		"ftm-evt-counter-en", "ftm-src-counter-en";

	clocks = <&clks VF610_CLK_FTM2>,

		<&clks VF610_CLK_FTM3>,

		<&clks VF610_CLK_FTM2_EXT_FIX_EN>,

		<&clks VF610_CLK_FTM3_EXT_FIX_EN>;

	big-endian;

};

Documentation/timers/timer_stats.txt

+3 −3
Original line number Diff line number Diff line
@@ -39,9 +39,9 @@ To stop a sample period issue: 
The statistics can be retrieved by:

# cat /proc/timer_stats



The readout of /proc/timer_stats automatically disables sampling. The sampled

information is kept until a new sample period is started. This allows multiple

readouts.

While sampling is enabled, each readout from /proc/timer_stats will see

newly updated statistics. Once sampling is disabled, the sampled information

is kept until a new sample period is started. This allows multiple readouts.



Sample output of /proc/timer_stats: