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

…linux/kernel/git/tip/tip

Pull timer fixes from Thomas Gleixner:
 "A rather small update for the time(r) subsystem:

   - A new clocksource driver IMX-TPM

   - Minor fixes to the alarmtimer facility

   - Device tree cleanups for Renesas drivers

   - A new kselftest and fixes for the timer related tests

   - Conversion of the clocksource drivers to use %pOF

   - Use the proper helpers to access rlimits in the posix-cpu-timer
     code"

* 'timers-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  alarmtimer: Ensure RTC module is not unloaded
  clocksource: Convert to using %pOF instead of full_name
  clocksource/drivers/bcm2835: Remove message for a memory allocation failure
  devicetree: bindings: Remove deprecated properties
  devicetree: bindings: Remove unused 32-bit CMT bindings
  devicetree: bindings: Deprecate property, update example
  devicetree: bindings: r8a73a4 and R-Car Gen2 CMT bindings
  devicetree: bindings: R-Car Gen2 CMT0 and CMT1 bindings
  devicetree: bindings: Remove sh7372 CMT binding
  clocksource/drivers/imx-tpm: Add imx tpm timer support
  dt-bindings: timer: Add nxp tpm timer binding doc
  posix-cpu-timers: Use dedicated helper to access rlimit values
  alarmtimer: Fix unavailable wake-up source in sysfs
  timekeeping: Use proper timekeeper for debug code
  kselftests: timers: set-timer-lat: Add one-shot timer test cases
  kselftests: timers: set-timer-lat: Tweak reporting when timer fires early
  kselftests: timers: freq-step: Fix build warning
  kselftests: timers: freq-step: Define ADJ_SETOFFSET if device has older kernel headers

Documentation/devicetree/bindings/timer/nxp,tpm-timer.txt

@@ -0,0 +1,28 @@
+NXP Low Power Timer/Pulse Width Modulation Module (TPM)
+
+The Timer/PWM Module (TPM) supports input capture, output compare,
+and the generation of PWM signals to control electric motor and power
+management applications. The counter, compare and capture registers
+are clocked by an asynchronous clock that can remain enabled in low
+power modes. TPM can support global counter bus where one TPM drives
+the counter bus for the others, provided bit width is the same.
+
+Required properties:
+
+- compatible :	should be "fsl,imx7ulp-tpm"
+- 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: "igp" and "per".
+
+Example:
+tpm5: tpm@40260000 {
+	compatible = "fsl,imx7ulp-tpm";
+	reg = <0x40260000 0x1000>;
+	interrupts = <GIC_SPI 22 IRQ_TYPE_LEVEL_HIGH>;
+	clocks = <&clks IMX7ULP_CLK_NIC1_BUS_DIV>,
+		 <&clks IMX7ULP_CLK_LPTPM5>;
+	clock-names = "ipg", "per";
+};

Documentation/devicetree/bindings/timer/renesas,cmt.txt

@@ -12,68 +12,59 @@ datasheets.
 Required Properties:
 
   - 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)
-		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)
-		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)
+		(CMT1 on sh73a0 and r8a7740)
 		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.
+    - "renesas,cmt0-r8a73a4" for the 32-bit CMT0 device included in r8a73a4.
+    - "renesas,cmt1-r8a73a4" for the 48-bit CMT1 device included in r8a73a4.
+    - "renesas,cmt0-r8a7790" for the 32-bit CMT0 device included in r8a7790.
+    - "renesas,cmt1-r8a7790" for the 48-bit CMT1 device included in r8a7790.
+    - "renesas,cmt0-r8a7791" for the 32-bit CMT0 device included in r8a7791.
+    - "renesas,cmt1-r8a7791" for the 48-bit CMT1 device included in r8a7791.
+    - "renesas,cmt0-r8a7793" for the 32-bit CMT0 device included in r8a7793.
+    - "renesas,cmt1-r8a7793" for the 48-bit CMT1 device included in r8a7793.
+    - "renesas,cmt0-r8a7794" for the 32-bit CMT0 device included in r8a7794.
+    - "renesas,cmt1-r8a7794" for the 48-bit CMT1 device included in r8a7794.
+
+    - "renesas,rcar-gen2-cmt0" for 32-bit CMT0 devices included in R-Car Gen2.
+    - "renesas,rcar-gen2-cmt1" for 48-bit CMT1 devices included in R-Car Gen2.
+		These are fallbacks for r8a73a4 and all the R-Car Gen2
+		entries	listed above.
 
   - reg: base address and length of the registers block for the timer module.
   - interrupts: interrupt-specifier for the timer, one per channel.
   - clocks: a list of phandle + clock-specifier pairs, one for each entry
     in clock-names.
   - clock-names: must contain "fck" for the functional clock.
 
-  - renesas,channels-mask: bitmask of the available channels.
 
-
-Example: R8A7790 (R-Car H2) CMT0 node
-
-	CMT0 on R8A7790 implements hardware channels 5 and 6 only and names
-	them channels 0 and 1 in the documentation.
+Example: R8A7790 (R-Car H2) CMT0 and CMT1 nodes
 
 	cmt0: timer@ffca0000 {
-		compatible = "renesas,cmt-48-r8a7790", "renesas,cmt-48-gen2";
+		compatible = "renesas,cmt0-r8a7790", "renesas,rcar-gen2-cmt0";
 		reg = <0 0xffca0000 0 0x1004>;
 		interrupts = <0 142 IRQ_TYPE_LEVEL_HIGH>,
 			     <0 142 IRQ_TYPE_LEVEL_HIGH>;
 		clocks = <&mstp1_clks R8A7790_CLK_CMT0>;
 		clock-names = "fck";
+	};
 
-		renesas,channels-mask = <0x60>;
+	cmt1: timer@e6130000 {
+		compatible = "renesas,cmt1-r8a7790", "renesas,rcar-gen2-cmt1";
+		reg = <0 0xe6130000 0 0x1004>;
+		interrupts = <0 120 IRQ_TYPE_LEVEL_HIGH>,
+			     <0 121 IRQ_TYPE_LEVEL_HIGH>,
+			     <0 122 IRQ_TYPE_LEVEL_HIGH>,
+			     <0 123 IRQ_TYPE_LEVEL_HIGH>,
+			     <0 124 IRQ_TYPE_LEVEL_HIGH>,
+			     <0 125 IRQ_TYPE_LEVEL_HIGH>,
+			     <0 126 IRQ_TYPE_LEVEL_HIGH>,
+			     <0 127 IRQ_TYPE_LEVEL_HIGH>;
+		clocks = <&mstp3_clks R8A7790_CLK_CMT1>;
+		clock-names = "fck";
 	};

drivers/clocksource/Kconfig

@@ -598,6 +598,14 @@ config CLKSRC_IMX_GPT
 	depends on ARM && CLKDEV_LOOKUP
 	select CLKSRC_MMIO
 
+config CLKSRC_IMX_TPM
+	bool "Clocksource using i.MX TPM" if COMPILE_TEST
+	depends on ARM && CLKDEV_LOOKUP && GENERIC_CLOCKEVENTS
+	select CLKSRC_MMIO
+	help
+	  Enable this option to use IMX Timer/PWM Module (TPM) timer as
+	  clocksource.
+
 config CLKSRC_ST_LPC
 	bool "Low power clocksource found in the LPC" if COMPILE_TEST
 	select TIMER_OF if OF

drivers/clocksource/Makefile

@@ -67,6 +67,7 @@ obj-$(CONFIG_CLKSRC_VERSATILE)		+= versatile.o
 obj-$(CONFIG_CLKSRC_MIPS_GIC)		+= mips-gic-timer.o
 obj-$(CONFIG_CLKSRC_TANGO_XTAL)		+= tango_xtal.o
 obj-$(CONFIG_CLKSRC_IMX_GPT)		+= timer-imx-gpt.o
+obj-$(CONFIG_CLKSRC_IMX_TPM)		+= timer-imx-tpm.o
 obj-$(CONFIG_ASM9260_TIMER)		+= asm9260_timer.o
 obj-$(CONFIG_H8300_TMR8)		+= h8300_timer8.o
 obj-$(CONFIG_H8300_TMR16)		+= h8300_timer16.o

drivers/clocksource/bcm2835_timer.c

@@ -114,7 +114,6 @@ static int __init bcm2835_timer_init(struct device_node *node)
 
 	timer = kzalloc(sizeof(*timer), GFP_KERNEL);
 	if (!timer) {
-		pr_err("Can't allocate timer struct\n");
 		ret = -ENOMEM;
 		goto err_iounmap;
 	}

drivers/clocksource/tango_xtal.c

@@ -26,13 +26,13 @@ static int __init tango_clocksource_init(struct device_node *np)
 
 	xtal_in_cnt = of_iomap(np, 0);
 	if (xtal_in_cnt == NULL) {
-		pr_err("%s: invalid address\n", np->full_name);
+		pr_err("%pOF: invalid address\n", np);
 		return -ENXIO;
 	}
 
 	clk = of_clk_get(np, 0);
 	if (IS_ERR(clk)) {
-		pr_err("%s: invalid clock\n", np->full_name);
+		pr_err("%pOF: invalid clock\n", np);
 		return PTR_ERR(clk);
 	}
 
@@ -43,7 +43,7 @@ static int __init tango_clocksource_init(struct device_node *np)
 	ret = clocksource_mmio_init(xtal_in_cnt, "tango-xtal", xtal_freq, 350,
 				    32, clocksource_mmio_readl_up);
 	if (ret) {
-		pr_err("%s: registration failed\n", np->full_name);
+		pr_err("%pOF: registration failed\n", np);
 		return ret;
 	}