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
  ...

5 files changed, 45 insertions, 7 deletions

diff --git a/Documentation/devicetree/bindings/arm/global_timer.txt b/Documentation/devicetree/bindings/arm/global_timer.txt
index 1e548981eda4..bdae3a818793 100644
--- a/Documentation/devicetree/bindings/arm/global_timer.txt
+++ b/Documentation/devicetree/bindings/arm/global_timer.txt
@@ -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
 
diff --git a/Documentation/devicetree/bindings/timer/allwinner,sun5i-a13-hstimer.txt b/Documentation/devicetree/bindings/timer/allwinner,sun5i-a13-hstimer.txt
index 7c26154b8bbb..27cfc7d7ccd7 100644
--- a/Documentation/devicetree/bindings/timer/allwinner,sun5i-a13-hstimer.txt
+++ b/Documentation/devicetree/bindings/timer/allwinner,sun5i-a13-hstimer.txt
@@ -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>;
 };
diff --git a/Documentation/devicetree/bindings/timer/efm32,timer.txt b/Documentation/devicetree/bindings/timer/energymicro,efm32-timer.txt
index 97a568f696c9..e502c11b2211 100644
--- a/Documentation/devicetree/bindings/timer/efm32,timer.txt
+++ b/Documentation/devicetree/bindings/timer/energymicro,efm32-timer.txt
@@ -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>;
diff --git a/Documentation/devicetree/bindings/timer/fsl,ftm-timer.txt b/Documentation/devicetree/bindings/timer/fsl,ftm-timer.txt
new file mode 100644
index 000000000000..aa8c40230e5e
--- /dev/null
+++ b/Documentation/devicetree/bindings/timer/fsl,ftm-timer.txt
@@ -0,0 +1,31 @@
+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;
+};
diff --git a/Documentation/timers/timer_stats.txt b/Documentation/timers/timer_stats.txt
index 8abd40b22b7f..de835ee97455 100644
--- a/Documentation/timers/timer_stats.txt
+++ b/Documentation/timers/timer_stats.txt
@@ -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: