Merge tag 'rtc-6.10' of git://git.kernel.org/pub/scm/linux/kernel/git/abelloni/linux

Pull RTC updates from Alexandre Belloni:
 "There is one new driver and then most of the changes are the device
  tree bindings conversions to yaml.

  New driver:
   - Epson RX8111

  Drivers:
   - Many Device Tree bindings conversions to dtschema
   - pcf8563: wakeup-source support"

* tag 'rtc-6.10' of git://git.kernel.org/pub/scm/linux/kernel/git/abelloni/linux:
  pcf8563: add wakeup-source support
  rtc: rx8111: handle VLOW flag
  rtc: rx8111: demote warnings to debug level
  rtc: rx6110: Constify struct regmap_config
  dt-bindings: rtc: convert trivial devices into dtschema
  dt-bindings: rtc: stmp3xxx-rtc: convert to dtschema
  dt-bindings: rtc: pxa-rtc: convert to dtschema
  rtc: Add driver for Epson RX8111
  dt-bindings: rtc: Add Epson RX8111
  rtc: mcp795: drop unneeded MODULE_ALIAS
  rtc: nuvoton: Modify part number value
  rtc: test: Split rtc unit test into slow and normal speed test
  dt-bindings: rtc: nxp,lpc1788-rtc: convert to dtschema
  dt-bindings: rtc: digicolor-rtc: move to trivial-rtc
  dt-bindings: rtc: alphascale,asm9260-rtc: convert to dtschema
  dt-bindings: rtc: armada-380-rtc: convert to dtschema
  rtc: cros-ec: provide ID table for avoiding fallback match

19 files changed, 271 insertions, 230 deletions

diff --git a/Documentation/devicetree/bindings/rtc/alphascale,asm9260-rtc.txt b/Documentation/devicetree/bindings/rtc/alphascale,asm9260-rtc.txt
deleted file mode 100644
index 76ebca568db9..000000000000
--- a/Documentation/devicetree/bindings/rtc/alphascale,asm9260-rtc.txt
+++ /dev/null
@@ -1,19 +0,0 @@
-* Alphascale asm9260 SoC Real Time Clock
-
-Required properties:
-- compatible: Should be "alphascale,asm9260-rtc"
-- reg: Physical base address of the controller and length
-       of memory mapped region.
-- interrupts: IRQ line for the RTC.
-- clocks: Reference to the clock entry.
-- clock-names: should contain:
-  * "ahb" for the SoC RTC clock
-
-Example:
-rtc0: rtc@800a0000 {
-	compatible = "alphascale,asm9260-rtc";
-	reg = <0x800a0000 0x100>;
-	clocks = <&acc CLKID_AHB_RTC>;
-	clock-names = "ahb";
-	interrupts = <2>;
-};
diff --git a/Documentation/devicetree/bindings/rtc/alphascale,asm9260-rtc.yaml b/Documentation/devicetree/bindings/rtc/alphascale,asm9260-rtc.yaml
new file mode 100644
index 000000000000..f955a7f638ad
--- /dev/null
+++ b/Documentation/devicetree/bindings/rtc/alphascale,asm9260-rtc.yaml
@@ -0,0 +1,50 @@
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/rtc/alphascale,asm9260-rtc.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Alphascale asm9260 SoC Real Time Clock
+
+maintainers:
+  - Javier Carrasco <javier.carrasco.cruz@gmail.com>
+
+allOf:
+  - $ref: rtc.yaml#
+
+properties:
+  compatible:
+    const: alphascale,asm9260-rtc
+
+  reg:
+    maxItems: 1
+
+  clocks:
+    maxItems: 1
+
+  clock-names:
+    const: ahb
+
+  interrupts:
+    maxItems: 1
+
+required:
+  - compatible
+  - reg
+  - clocks
+  - clock-names
+  - interrupts
+
+unevaluatedProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/clock/alphascale,asm9260.h>
+
+    rtc@800a0000 {
+        compatible = "alphascale,asm9260-rtc";
+        reg = <0x800a0000 0x100>;
+        clocks = <&acc CLKID_AHB_RTC>;
+        clock-names = "ahb";
+        interrupts = <2>;
+    };
diff --git a/Documentation/devicetree/bindings/rtc/armada-380-rtc.txt b/Documentation/devicetree/bindings/rtc/armada-380-rtc.txt
deleted file mode 100644
index c3c9a1226f9a..000000000000
--- a/Documentation/devicetree/bindings/rtc/armada-380-rtc.txt
+++ /dev/null
@@ -1,24 +0,0 @@
-* Real Time Clock of the Armada 38x/7K/8K SoCs
-
-RTC controller for the Armada 38x, 7K and 8K SoCs
-
-Required properties:
-- compatible : Should be one of the following:
-	"marvell,armada-380-rtc" for Armada 38x SoC
-	"marvell,armada-8k-rtc" for Aramda 7K/8K SoCs
-- reg: a list of base address and size pairs, one for each entry in
-  reg-names
-- reg names: should contain:
-  * "rtc" for the RTC registers
-  * "rtc-soc" for the SoC related registers and among them the one
-    related to the interrupt.
-- interrupts: IRQ line for the RTC.
-
-Example:
-
-rtc@a3800 {
-	compatible = "marvell,armada-380-rtc";
-	reg = <0xa3800 0x20>, <0x184a0 0x0c>;
-	reg-names = "rtc", "rtc-soc";
-	interrupts = <GIC_SPI 21 IRQ_TYPE_LEVEL_HIGH>;
-};
diff --git a/Documentation/devicetree/bindings/rtc/digicolor-rtc.txt b/Documentation/devicetree/bindings/rtc/digicolor-rtc.txt
deleted file mode 100644
index d464986012cd..000000000000
--- a/Documentation/devicetree/bindings/rtc/digicolor-rtc.txt
+++ /dev/null
@@ -1,17 +0,0 @@
-Conexant Digicolor Real Time Clock controller
-
-This binding currently supports the CX92755 SoC.
-
-Required properties:
-- compatible: should be "cnxt,cx92755-rtc"
-- reg: physical base address of the controller and length of memory mapped
-  region.
-- interrupts: rtc alarm interrupt
-
-Example:
-
-	rtc@f0000c30 {
-		compatible = "cnxt,cx92755-rtc";
-		reg = <0xf0000c30 0x18>;
-		interrupts = <25>;
-	};
diff --git a/Documentation/devicetree/bindings/rtc/fsl,stmp3xxx-rtc.yaml b/Documentation/devicetree/bindings/rtc/fsl,stmp3xxx-rtc.yaml
new file mode 100644
index 000000000000..534de4196a4f
--- /dev/null
+++ b/Documentation/devicetree/bindings/rtc/fsl,stmp3xxx-rtc.yaml
@@ -0,0 +1,51 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/rtc/fsl,stmp3xxx-rtc.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: STMP3xxx/i.MX28 Time Clock Controller
+
+maintainers:
+  - Javier Carrasco <javier.carrasco.cruz@gmail.com>
+
+allOf:
+  - $ref: rtc.yaml#
+
+properties:
+  compatible:
+    oneOf:
+      - items:
+          - enum:
+              - fsl,imx28-rtc
+              - fsl,imx23-rtc
+          - const: fsl,stmp3xxx-rtc
+      - const: fsl,stmp3xxx-rtc
+
+  reg:
+    maxItems: 1
+
+  interrupts:
+    maxItems: 1
+
+  stmp,crystal-freq:
+    description:
+      Override crystal frequency as determined from fuse bits.
+      Use <0> for "no crystal".
+    $ref: /schemas/types.yaml#/definitions/uint32
+    enum: [0, 32000, 32768]
+
+required:
+  - compatible
+  - reg
+  - interrupts
+
+unevaluatedProperties: false
+
+examples:
+  - |
+    rtc@80056000 {
+        compatible = "fsl,imx28-rtc", "fsl,stmp3xxx-rtc";
+        reg = <0x80056000 2000>;
+        interrupts = <29>;
+    };
diff --git a/Documentation/devicetree/bindings/rtc/google,goldfish-rtc.txt b/Documentation/devicetree/bindings/rtc/google,goldfish-rtc.txt
deleted file mode 100644
index 634312dd95ca..000000000000
--- a/Documentation/devicetree/bindings/rtc/google,goldfish-rtc.txt
+++ /dev/null
@@ -1,17 +0,0 @@
-Android Goldfish RTC
-
-Android Goldfish RTC device used by Android emulator.
-
-Required properties:
-
-- compatible : should contain "google,goldfish-rtc"
-- reg        : <registers mapping>
-- interrupts : <interrupt mapping>
-
-Example:
-
-	goldfish_timer@9020000 {
-		compatible = "google,goldfish-rtc";
-		reg = <0x9020000 0x1000>;
-		interrupts = <0x3>;
-	};
diff --git a/Documentation/devicetree/bindings/rtc/lpc32xx-rtc.txt b/Documentation/devicetree/bindings/rtc/lpc32xx-rtc.txt
deleted file mode 100644
index a87a1e9bc060..000000000000
--- a/Documentation/devicetree/bindings/rtc/lpc32xx-rtc.txt
+++ /dev/null
@@ -1,15 +0,0 @@
-* NXP LPC32xx SoC Real Time Clock controller
-
-Required properties:
-- compatible: must be "nxp,lpc3220-rtc"
-- reg: physical base address of the controller and length of memory mapped
-  region.
-- interrupts: The RTC interrupt
-
-Example:
-
-	rtc@40024000 {
-		compatible = "nxp,lpc3220-rtc";
-		reg = <0x40024000 0x1000>;
-		interrupts = <52 0>;
-	};
diff --git a/Documentation/devicetree/bindings/rtc/marvell,armada-380-rtc.yaml b/Documentation/devicetree/bindings/rtc/marvell,armada-380-rtc.yaml
new file mode 100644
index 000000000000..adf3ba0cd09f
--- /dev/null
+++ b/Documentation/devicetree/bindings/rtc/marvell,armada-380-rtc.yaml
@@ -0,0 +1,51 @@
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/rtc/marvell,armada-380-rtc.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: RTC controller for the Armada 38x, 7K and 8K SoCs
+
+maintainers:
+  - Javier Carrasco <javier.carrasco.cruz@gmail.com>
+
+allOf:
+  - $ref: rtc.yaml#
+
+properties:
+  compatible:
+    enum:
+      - marvell,armada-380-rtc
+      - marvell,armada-8k-rtc
+
+  reg:
+    items:
+      - description: RTC base address size
+      - description: Base address and size of SoC related registers
+
+  reg-names:
+    items:
+      - const: rtc
+      - const: rtc-soc
+
+  interrupts:
+    maxItems: 1
+
+required:
+  - compatible
+  - reg
+  - reg-names
+  - interrupts
+
+unevaluatedProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/interrupt-controller/arm-gic.h>
+
+    rtc@a3800 {
+        compatible = "marvell,armada-380-rtc";
+        reg = <0xa3800 0x20>, <0x184a0 0x0c>;
+        reg-names = "rtc", "rtc-soc";
+        interrupts = <GIC_SPI 21 IRQ_TYPE_LEVEL_HIGH>;
+    };
diff --git a/Documentation/devicetree/bindings/rtc/marvell,pxa-rtc.yaml b/Documentation/devicetree/bindings/rtc/marvell,pxa-rtc.yaml
new file mode 100644
index 000000000000..43d68681a1bf
--- /dev/null
+++ b/Documentation/devicetree/bindings/rtc/marvell,pxa-rtc.yaml
@@ -0,0 +1,40 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/rtc/marvell,pxa-rtc.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: PXA Real Time Clock
+
+maintainers:
+  - Javier Carrasco <javier.carrasco.cruz@gmail.com>
+
+allOf:
+  - $ref: rtc.yaml#
+
+properties:
+  compatible:
+    const: marvell,pxa-rtc
+
+  reg:
+    maxItems: 1
+
+  interrupts:
+    items:
+      - description: 1 Hz
+      - description: Alarm
+
+required:
+  - compatible
+  - reg
+  - interrupts
+
+unevaluatedProperties: false
+
+examples:
+  - |
+    rtc@40900000 {
+        compatible = "marvell,pxa-rtc";
+        reg = <0x40900000 0x3c>;
+        interrupts = <30>, <31>;
+    };
diff --git a/Documentation/devicetree/bindings/rtc/maxim,ds1742.txt b/Documentation/devicetree/bindings/rtc/maxim,ds1742.txt
deleted file mode 100644
index d0f937c355b5..000000000000
--- a/Documentation/devicetree/bindings/rtc/maxim,ds1742.txt
+++ /dev/null
@@ -1,12 +0,0 @@
-* Maxim (Dallas) DS1742/DS1743 Real Time Clock
-
-Required properties:
-- compatible: Should contain "maxim,ds1742".
-- reg: Physical base address of the RTC and length of memory
-  mapped region.
-
-Example:
-	rtc: rtc@10000000 {
-		compatible = "maxim,ds1742";
-		reg = <0x10000000 0x800>;
-	};
diff --git a/Documentation/devicetree/bindings/rtc/nxp,lpc1788-rtc.txt b/Documentation/devicetree/bindings/rtc/nxp,lpc1788-rtc.txt
deleted file mode 100644
index 3c97bd180592..000000000000
--- a/Documentation/devicetree/bindings/rtc/nxp,lpc1788-rtc.txt
+++ /dev/null
@@ -1,21 +0,0 @@
-NXP LPC1788 real-time clock
-
-The LPC1788 RTC provides calendar and clock functionality
-together with periodic tick and alarm interrupt support.
-
-Required properties:
-- compatible	: must contain "nxp,lpc1788-rtc"
-- reg		: Specifies base physical address and size of the registers.
-- interrupts	: A single interrupt specifier.
-- clocks	: Must contain clock specifiers for rtc and register clock
-- clock-names	: Must contain "rtc" and "reg"
-  See ../clocks/clock-bindings.txt for details.
-
-Example:
-rtc: rtc@40046000 {
-	compatible = "nxp,lpc1788-rtc";
-	reg = <0x40046000 0x1000>;
-	interrupts = <47>;
-	clocks = <&creg_clk 0>, <&ccu1 CLK_CPU_BUS>;
-	clock-names = "rtc", "reg";
-};
diff --git a/Documentation/devicetree/bindings/rtc/nxp,lpc1788-rtc.yaml b/Documentation/devicetree/bindings/rtc/nxp,lpc1788-rtc.yaml
new file mode 100644
index 000000000000..e88b847a1cc5
--- /dev/null
+++ b/Documentation/devicetree/bindings/rtc/nxp,lpc1788-rtc.yaml
@@ -0,0 +1,58 @@
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/rtc/nxp,lpc1788-rtc.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: NXP LPC1788 real-time clock
+
+description:
+  The LPC1788 RTC provides calendar and clock functionality
+  together with periodic tick and alarm interrupt support.
+
+maintainers:
+  - Javier Carrasco <javier.carrasco.cruz@gmail.com>
+
+allOf:
+  - $ref: rtc.yaml#
+
+properties:
+  compatible:
+    const: nxp,lpc1788-rtc
+
+  reg:
+    maxItems: 1
+
+  clocks:
+    items:
+      - description: RTC clock
+      - description: Register clock
+
+  clock-names:
+    items:
+      - const: rtc
+      - const: reg
+
+  interrupts:
+    maxItems: 1
+
+required:
+  - compatible
+  - reg
+  - clocks
+  - clock-names
+  - interrupts
+
+unevaluatedProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/clock/lpc18xx-ccu.h>
+
+    rtc@40046000 {
+        compatible = "nxp,lpc1788-rtc";
+        reg = <0x40046000 0x1000>;
+        clocks = <&creg_clk 0>, <&ccu1 CLK_CPU_BUS>;
+        clock-names = "rtc", "reg";
+        interrupts = <47>;
+    };
diff --git a/Documentation/devicetree/bindings/rtc/orion-rtc.txt b/Documentation/devicetree/bindings/rtc/orion-rtc.txt
deleted file mode 100644
index 3bf63ffa5160..000000000000
--- a/Documentation/devicetree/bindings/rtc/orion-rtc.txt
+++ /dev/null
@@ -1,18 +0,0 @@
-* Mvebu Real Time Clock
-
-RTC controller for the Kirkwood, the Dove, the Armada 370 and the
-Armada XP SoCs
-
-Required properties:
-- compatible : Should be "marvell,orion-rtc"
-- reg: physical base address of the controller and length of memory mapped
-  region.
-- interrupts: IRQ line for the RTC.
-
-Example:
-
-rtc@10300 {
-        compatible = "marvell,orion-rtc";
-        reg = <0xd0010300 0x20>;
-        interrupts = <50>;
-};
diff --git a/Documentation/devicetree/bindings/rtc/pxa-rtc.txt b/Documentation/devicetree/bindings/rtc/pxa-rtc.txt
deleted file mode 100644
index 8c6672a1b7d7..000000000000
--- a/Documentation/devicetree/bindings/rtc/pxa-rtc.txt
+++ /dev/null
@@ -1,14 +0,0 @@
-* PXA RTC
-
-PXA specific RTC driver.
-
-Required properties:
-- compatible : Should be "marvell,pxa-rtc"
-
-Examples:
-
-rtc@40900000 {
-	compatible = "marvell,pxa-rtc";
-	reg = <0x40900000 0x3c>;
-	interrupts = <30 31>;
-};
diff --git a/Documentation/devicetree/bindings/rtc/rtc-aspeed.txt b/Documentation/devicetree/bindings/rtc/rtc-aspeed.txt
deleted file mode 100644
index 2e956b3dc276..000000000000
--- a/Documentation/devicetree/bindings/rtc/rtc-aspeed.txt
+++ /dev/null
@@ -1,22 +0,0 @@
-ASPEED BMC RTC
-==============
-
-Required properties:
- - compatible: should be one of the following
-   * aspeed,ast2400-rtc for the ast2400
-   * aspeed,ast2500-rtc for the ast2500
-   * aspeed,ast2600-rtc for the ast2600
-
- - reg: physical base address of the controller and length of memory mapped
-   region
-
- - interrupts: The interrupt number
-
-Example:
-
-   rtc@1e781000 {
-           compatible = "aspeed,ast2400-rtc";
-           reg = <0x1e781000 0x18>;
-           interrupts = <22>;
-           status = "disabled";
-   };
diff --git a/Documentation/devicetree/bindings/rtc/spear-rtc.txt b/Documentation/devicetree/bindings/rtc/spear-rtc.txt
deleted file mode 100644
index fecf8e4ad4b4..000000000000
--- a/Documentation/devicetree/bindings/rtc/spear-rtc.txt
+++ /dev/null
@@ -1,15 +0,0 @@
-* SPEAr RTC
-
-Required properties:
-- compatible : "st,spear600-rtc"
-- reg : Address range of the rtc registers
-- interrupt: Should contain the rtc interrupt number
-
-Example:
-
-	rtc@fc000000 {
-		compatible = "st,spear600-rtc";
-		reg = <0xfc000000 0x1000>;
-		interrupt-parent = <&vic1>;
-		interrupts = <12>;
-	};
diff --git a/Documentation/devicetree/bindings/rtc/stmp3xxx-rtc.txt b/Documentation/devicetree/bindings/rtc/stmp3xxx-rtc.txt
deleted file mode 100644
index fa6a94226669..000000000000
--- a/Documentation/devicetree/bindings/rtc/stmp3xxx-rtc.txt
+++ /dev/null
@@ -1,21 +0,0 @@
-* STMP3xxx/i.MX28 Time Clock controller
-
-Required properties:
-- compatible: should be one of the following.
-    * "fsl,stmp3xxx-rtc"
-- reg: physical base address of the controller and length of memory mapped
-  region.
-- interrupts: rtc alarm interrupt
-
-Optional properties:
-- stmp,crystal-freq: override crystal frequency as determined from fuse bits.
-  Only <32000> and <32768> are possible for the hardware.  Use <0> for
-  "no crystal".
-
-Example:
-
-rtc@80056000 {
-	compatible = "fsl,imx28-rtc", "fsl,stmp3xxx-rtc";
-	reg = <0x80056000 2000>;
-	interrupts = <29>;
-};
diff --git a/Documentation/devicetree/bindings/rtc/trivial-rtc.yaml b/Documentation/devicetree/bindings/rtc/trivial-rtc.yaml
index c9e3c5262c21..fffd759c603f 100644
--- a/Documentation/devicetree/bindings/rtc/trivial-rtc.yaml
+++ b/Documentation/devicetree/bindings/rtc/trivial-rtc.yaml
@@ -24,6 +24,14 @@ properties:
       - abracon,abb5zes3
       # AB-RTCMC-32.768kHz-EOZ9: Real Time Clock/Calendar Module with I2C Interface
       - abracon,abeoz9
+      # ASPEED BMC ast2400 Real-time Clock
+      - aspeed,ast2400-rtc
+      # ASPEED BMC ast2500 Real-time Clock
+      - aspeed,ast2500-rtc
+      # ASPEED BMC ast2600 Real-time Clock
+      - aspeed,ast2600-rtc
+      # Conexant Digicolor Real Time Clock Controller
+      - cnxt,cx92755-rtc
       # I2C, 32-Bit Binary Counter Watchdog RTC with Trickle Charger and Reset Input/Output
       - dallas,ds1374
       # Dallas DS1672 Real-time Clock
@@ -38,19 +46,28 @@ properties:
       - epson,rx8025
       - epson,rx8035
       # I2C-BUS INTERFACE REAL TIME CLOCK MODULE with Battery Backed RAM
+      - epson,rx8111
       - epson,rx8571
       # I2C-BUS INTERFACE REAL TIME CLOCK MODULE
       - epson,rx8581
+      # Android Goldfish Real-time Clock
+      - google,goldfish-rtc
       # Intersil ISL1208 Low Power RTC with Battery Backed SRAM
       - isil,isl1208
       # Intersil ISL1218 Low Power RTC with Battery Backed SRAM
       - isil,isl1218
+      # Mvebu Real-time Clock
+      - marvell,orion-rtc
+      # Maxim DS1742/DS1743 Real-time Clock
+      - maxim,ds1742
       # SPI-BUS INTERFACE REAL TIME CLOCK MODULE
       - maxim,mcp795
       # Real Time Clock Module with I2C-Bus
       - microcrystal,rv3029
       # Real Time Clock
       - microcrystal,rv8523
+      # NXP LPC32xx SoC Real-time Clock
+      - nxp,lpc3220-rtc
       # Real-time Clock Module
       - pericom,pt7c4338
       # I2C bus SERIAL INTERFACE REAL-TIME CLOCK IC
@@ -67,6 +84,10 @@ properties:
       - ricoh,rv5c387a
       # 2-wire CMOS real-time clock
       - sii,s35390a
+      # ST SPEAr Real-time Clock
+      - st,spear600-rtc
+      # VIA/Wondermedia VT8500 Real-time Clock
+      - via,vt8500-rtc
       # I2C bus SERIAL INTERFACE REAL-TIME CLOCK IC
       - whwave,sd3078
       # Xircom X1205 I2C RTC
diff --git a/Documentation/devicetree/bindings/rtc/via,vt8500-rtc.txt b/Documentation/devicetree/bindings/rtc/via,vt8500-rtc.txt
deleted file mode 100644
index 3c0484c49582..000000000000
--- a/Documentation/devicetree/bindings/rtc/via,vt8500-rtc.txt
+++ /dev/null
@@ -1,15 +0,0 @@
-VIA/Wondermedia VT8500 Realtime Clock Controller
------------------------------------------------------
-
-Required properties:
-- compatible : "via,vt8500-rtc"
-- reg : Should contain 1 register ranges(address and length)
-- interrupts : alarm interrupt
-
-Example:
-
-	rtc@d8100000 {
-		compatible = "via,vt8500-rtc";
-		reg = <0xd8100000 0x10000>;
-		interrupts = <48>;
-	};