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

Pull timer updates from Thomas Gleixner:
 "Nothing really exciting this time:

   - a few fixlets in the NOHZ code

   - a new ARM SoC timer abomination.  One should expect that we have
     enough of them already, but they insist on inventing new ones.

   - the usual bunch of ARM SoC timer updates.  That feels like herding
     cats"

* 'timers-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  clocksource: arm_arch_timer: Consolidate arch_timer_evtstrm_enable
  clocksource: arm_arch_timer: Enable counter access for 32-bit ARM
  clocksource: arm_arch_timer: Change clocksource name if CP15 unavailable
  clocksource: sirf: Disable counter before re-setting it
  clocksource: cadence_ttc: Add support for 32bit mode
  clocksource: tcb_clksrc: Sanitize IRQ request
  clocksource: arm_arch_timer: Discard unavailable timers correctly
  clocksource: vf_pit_timer: Support shutdown mode
  ARM: meson6: clocksource: Add Meson6 timer support
  ARM: meson: documentation: Add timer documentation
  clocksource: sh_tmu: Document r8a7779 binding
  clocksource: sh_mtu2: Document r7s72100 binding
  clocksource: sh_cmt: Document SoC specific bindings
  timerfd: Remove an always true check
  nohz: Avoid tick's double reprogramming in highres mode
  nohz: Fix spurious periodic tick behaviour in low-res dynticks mode

4 files changed, 63 insertions, 10 deletions

diff --git a/Documentation/devicetree/bindings/timer/amlogic,meson6-timer.txt b/Documentation/devicetree/bindings/timer/amlogic,meson6-timer.txt
new file mode 100644
index 000000000000..a092053f7902
--- /dev/null
+++ b/Documentation/devicetree/bindings/timer/amlogic,meson6-timer.txt
@@ -0,0 +1,15 @@
+Amlogic Meson6 SoCs Timer Controller
+
+Required properties:
+
+- compatible : should be "amlogic,meson6-timer"
+- reg : Specifies base physical address and size of the registers.
+- interrupts : The interrupt of the first timer
+
+Example:
+
+timer@c1109940 {
+	compatible = "amlogic,meson6-timer";
+	reg = <0xc1109940 0x14>;
+	interrupts = <0 10 1>;
+};
diff --git a/Documentation/devicetree/bindings/timer/renesas,cmt.txt b/Documentation/devicetree/bindings/timer/renesas,cmt.txt
index a17418b0ece3..1a05c1b243c1 100644
--- a/Documentation/devicetree/bindings/timer/renesas,cmt.txt
+++ b/Documentation/devicetree/bindings/timer/renesas,cmt.txt
@@ -11,15 +11,47 @@ datasheets.
 
 Required Properties:
 
-  - compatible: must contain one of the following.
-    - "renesas,cmt-32" for the 32-bit CMT
+  - compatible: must contain one or more of the following:
+    - "renesas,cmt-32-r8a7740" for the r8a7740 32-bit CMT
+		(CMT0)
+    - "renesas,cmt-32-sh7372" for the sh7372 32-bit CMT
+		(CMT0)
+    - "renesas,cmt-32-sh73a0" for the sh73a0 32-bit CMT
+		(CMT0)
+    - "renesas,cmt-32" for all 32-bit CMT without fast clock support
 		(CMT0 on sh7372, sh73a0 and r8a7740)
-    - "renesas,cmt-32-fast" for the 32-bit CMT with fast clock support
+		This is a fallback for the above renesas,cmt-32-* entries.
+
+    - "renesas,cmt-32-fast-r8a7740" for the r8a7740 32-bit CMT with fast
+		clock support (CMT[234])
+    - "renesas,cmt-32-fast-sh7372" for the sh7372 32-bit CMT with fast
+		clock support (CMT[234])
+    - "renesas,cmt-32-fast-sh73a0" for the sh73A0 32-bit CMT with fast
+		clock support (CMT[234])
+    - "renesas,cmt-32-fast" for all 32-bit CMT with fast clock support
 		(CMT[234] on sh7372, sh73a0 and r8a7740)
-    - "renesas,cmt-48" for the 48-bit CMT
+		This is a fallback for the above renesas,cmt-32-fast-* entries.
+
+    - "renesas,cmt-48-sh7372" for the sh7372 48-bit CMT
+		(CMT1)
+    - "renesas,cmt-48-sh73a0" for the sh73A0 48-bit CMT
+		(CMT1)
+    - "renesas,cmt-48-r8a7740" for the r8a7740 48-bit CMT
+		(CMT1)
+    - "renesas,cmt-48" for all non-second generation 48-bit CMT
 		(CMT1 on sh7372, sh73a0 and r8a7740)
-    - "renesas,cmt-48-gen2" for the second generation 48-bit CMT
+		This is a fallback for the above renesas,cmt-48-* entries.
+
+    - "renesas,cmt-48-r8a73a4" for the r8a73a4 48-bit CMT
+		(CMT[01])
+    - "renesas,cmt-48-r8a7790" for the r8a7790 48-bit CMT
+		(CMT[01])
+    - "renesas,cmt-48-r8a7791" for the r8a7791 48-bit CMT
+		(CMT[01])
+    - "renesas,cmt-48-gen2" for all second generation 48-bit CMT
 		(CMT[01] on r8a73a4, r8a7790 and r8a7791)
+		This is a fallback for the renesas,cmt-48-r8a73a4,
+		renesas,cmt-48-r8a7790 and renesas,cmt-48-r8a7791 entries.
 
   - reg: base address and length of the registers block for the timer module.
   - interrupts: interrupt-specifier for the timer, one per channel.
@@ -36,7 +68,7 @@ Example: R8A7790 (R-Car H2) CMT0 node
 	them channels 0 and 1 in the documentation.
 
 	cmt0: timer@ffca0000 {
-		compatible = "renesas,cmt-48-gen2";
+		compatible = "renesas,cmt-48-r8a7790", "renesas,cmt-48-gen2";
 		reg = <0 0xffca0000 0 0x1004>;
 		interrupts = <0 142 IRQ_TYPE_LEVEL_HIGH>,
 			     <0 142 IRQ_TYPE_LEVEL_HIGH>;
diff --git a/Documentation/devicetree/bindings/timer/renesas,mtu2.txt b/Documentation/devicetree/bindings/timer/renesas,mtu2.txt
index 917453f826bc..d9a8d5af1a21 100644
--- a/Documentation/devicetree/bindings/timer/renesas,mtu2.txt
+++ b/Documentation/devicetree/bindings/timer/renesas,mtu2.txt
@@ -8,7 +8,10 @@ are independent. The MTU2 hardware supports five channels indexed from 0 to 4.
 
 Required Properties:
 
-  - compatible: must contain "renesas,mtu2"
+  - compatible: must be one or more of the following:
+    - "renesas,mtu2-r7s72100" for the r7s72100 MTU2
+    - "renesas,mtu2" for any MTU2
+      This is a fallback for the above renesas,mtu2-* entries
 
   - reg: base address and length of the registers block for the timer module.
 
@@ -26,7 +29,7 @@ Required Properties:
 Example: R7S72100 (RZ/A1H) MTU2 node
 
 	mtu2: timer@fcff0000 {
-		compatible = "renesas,mtu2";
+		compatible = "renesas,mtu2-r7s72100", "renesas,mtu2";
 		reg = <0xfcff0000 0x400>;
 		interrupts = <0 139 IRQ_TYPE_LEVEL_HIGH>,
 			     <0 146 IRQ_TYPE_LEVEL_HIGH>,
diff --git a/Documentation/devicetree/bindings/timer/renesas,tmu.txt b/Documentation/devicetree/bindings/timer/renesas,tmu.txt
index 425d0c5f4aee..7db89fb25444 100644
--- a/Documentation/devicetree/bindings/timer/renesas,tmu.txt
+++ b/Documentation/devicetree/bindings/timer/renesas,tmu.txt
@@ -8,7 +8,10 @@ are independent. The TMU hardware supports up to three channels.
 
 Required Properties:
 
-  - compatible: must contain "renesas,tmu"
+  - compatible: must contain one or more of the following:
+    - "renesas,tmu-r8a7779" for the r8a7779 TMU
+    - "renesas,tmu" for any TMU.
+      This is a fallback for the above renesas,tmu-* entries
 
   - reg: base address and length of the registers block for the timer module.
 
@@ -27,7 +30,7 @@ Optional Properties:
 Example: R8A7779 (R-Car H1) TMU0 node
 
 	tmu0: timer@ffd80000 {
-		compatible = "renesas,tmu";
+		compatible = "renesas,tmu-r8a7779", "renesas,tmu";
 		reg = <0xffd80000 0x30>;
 		interrupts = <0 32 IRQ_TYPE_LEVEL_HIGH>,
 			     <0 33 IRQ_TYPE_LEVEL_HIGH>,