8 files changed, 171 insertions, 45 deletions
diff --git a/dts/Bindings/rtc/brcm,brcmstb-waketimer.txt b/dts/Bindings/rtc/brcm,brcmstb-waketimer.txt
deleted file mode 100644
index d946f28502..0000000000
--- a/dts/Bindings/rtc/brcm,brcmstb-waketimer.txt
+++ /dev/null
@@ -1,20 +0,0 @@
-Broadcom STB wake-up Timer
-
-The Broadcom STB wake-up timer provides a 27Mhz resolution timer, with the
-ability to wake up the system from low-power suspend/standby modes.
-
-Required properties:
-- compatible     : should contain "brcm,brcmstb-waketimer"
-- reg            : the register start and length for the WKTMR block
-- interrupts     : The TIMER interrupt
-- clocks	 : The phandle to the UPG fixed clock (27Mhz domain)
-
-Example:
-
-waketimer@f0411580 {
-	compatible = "brcm,brcmstb-waketimer";
-	reg = <0xf0411580 0x14>;
-	interrupts = <0x3>;
-	interrupt-parent = <&aon_pm_l2_intc>;
-	clocks = <&upg_fixed>;
-};
diff --git a/dts/Bindings/rtc/brcm,brcmstb-waketimer.yaml b/dts/Bindings/rtc/brcm,brcmstb-waketimer.yaml
new file mode 100644
index 0000000000..9fe079917a
--- /dev/null
+++ b/dts/Bindings/rtc/brcm,brcmstb-waketimer.yaml
@@ -0,0 +1,44 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/rtc/brcm,brcmstb-waketimer.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Broadcom STB wake-up Timer
+
+maintainers:
+  - Florian Fainelli <f.fainelli@gmail.com>
+
+description:
+  The Broadcom STB wake-up timer provides a 27Mhz resolution timer, with the
+  ability to wake up the system from low-power suspend/standby modes.
+
+allOf:
+  - $ref: "rtc.yaml#"
+
+properties:
+  compatible:
+    const: brcm,brcmstb-waketimer
+
+  reg:
+    maxItems: 1
+
+  interrupts:
+    description: the TIMER interrupt
+    maxItems: 1
+
+  clocks:
+    description: clock reference in the 27MHz domain
+    maxItems: 1
+
+additionalProperties: false
+
+examples:
+  - |
+    rtc@f0411580 {
+        compatible = "brcm,brcmstb-waketimer";
+        reg = <0xf0411580 0x14>;
+        interrupts = <0x3>;
+        interrupt-parent = <&aon_pm_l2_intc>;
+        clocks = <&upg_fixed>;
+    };
diff --git a/dts/Bindings/rtc/epson,rx8900.yaml b/dts/Bindings/rtc/epson,rx8900.yaml
index 29fe39bb08..d12855e7ff 100644
--- a/dts/Bindings/rtc/epson,rx8900.yaml
+++ b/dts/Bindings/rtc/epson,rx8900.yaml
@@ -15,6 +15,7 @@ allOf:
 properties:
   compatible:
     enum:
+      - epson,rx8804
       - epson,rx8900
       - microcrystal,rv8803
 
diff --git a/dts/Bindings/rtc/nvidia,tegra20-rtc.txt b/dts/Bindings/rtc/nvidia,tegra20-rtc.txt
deleted file mode 100644
index b7d98ed3e0..0000000000
--- a/dts/Bindings/rtc/nvidia,tegra20-rtc.txt
+++ /dev/null
@@ -1,24 +0,0 @@
-NVIDIA Tegra20 real-time clock
-
-The Tegra RTC maintains seconds and milliseconds counters, and five alarm
-registers. The alarms and other interrupts may wake the system from low-power
-state.
-
-Required properties:
-
-- compatible : For Tegra20, must contain "nvidia,tegra20-rtc".  Otherwise,
-  must contain '"nvidia,<chip>-rtc", "nvidia,tegra20-rtc"', where <chip>
-  can be tegra30, tegra114, tegra124, or tegra132.
-- reg : Specifies base physical address and size of the registers.
-- interrupts : A single interrupt specifier.
-- clocks : Must contain one entry, for the module clock.
-  See ../clocks/clock-bindings.txt for details.
-
-Example:
-
-timer {
-	compatible = "nvidia,tegra20-rtc";
-	reg = <0x7000e000 0x100>;
-	interrupts = <0 2 0x04>;
-	clocks = <&tegra_car 4>;
-};
diff --git a/dts/Bindings/rtc/nvidia,tegra20-rtc.yaml b/dts/Bindings/rtc/nvidia,tegra20-rtc.yaml
new file mode 100644
index 0000000000..17d6280e55
--- /dev/null
+++ b/dts/Bindings/rtc/nvidia,tegra20-rtc.yaml
@@ -0,0 +1,61 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/rtc/nvidia,tegra20-rtc.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: NVIDIA Tegra real-time clock
+
+maintainers:
+  - Thierry Reding <thierry.reding@gmail.com>
+  - Jon Hunter <jonathanh@nvidia.com>
+
+description: |
+  The Tegra RTC maintains seconds and milliseconds counters, and five
+  alarm registers. The alarms and other interrupts may wake the system
+  from low-power state.
+
+properties:
+  compatible:
+    oneOf:
+      - const: nvidia,tegra20-rtc
+      - items:
+          - enum:
+              - nvidia,tegra30-rtc
+              - nvidia,tegra114-rtc
+              - nvidia,tegra124-rtc
+              - nvidia,tegra210-rtc
+              - nvidia,tegra186-rtc
+              - nvidia,tegra194-rtc
+              - nvidia,tegra234-rtc
+          - const: nvidia,tegra20-rtc
+
+  reg:
+    maxItems: 1
+
+  interrupts:
+    maxItems: 1
+
+  clocks:
+    maxItems: 1
+
+  clock-names:
+    items:
+      - const: rtc
+
+additionalProperties: false
+
+required:
+  - compatible
+  - reg
+  - interrupts
+  - clocks
+
+examples:
+  - |
+    timer@7000e000 {
+        compatible = "nvidia,tegra20-rtc";
+        reg = <0x7000e000 0x100>;
+        interrupts = <0 2 0x04>;
+        clocks = <&tegra_car 4>;
+    };
diff --git a/dts/Bindings/rtc/qcom-pm8xxx-rtc.yaml b/dts/Bindings/rtc/qcom-pm8xxx-rtc.yaml
index 4fba6dba16..6fa7d9fc2d 100644
--- a/dts/Bindings/rtc/qcom-pm8xxx-rtc.yaml
+++ b/dts/Bindings/rtc/qcom-pm8xxx-rtc.yaml
@@ -19,7 +19,14 @@ properties:
       - qcom,pmk8350-rtc
 
   reg:
-    maxItems: 1
+    minItems: 1
+    maxItems: 2
+
+  reg-names:
+    minItems: 1
+    items:
+      - const: rtc
+      - const: alarm
 
   interrupts:
     maxItems: 1
diff --git a/dts/Bindings/rtc/st,stm32-rtc.yaml b/dts/Bindings/rtc/st,stm32-rtc.yaml
index 2359f541b7..764717ce18 100644
--- a/dts/Bindings/rtc/st,stm32-rtc.yaml
+++ b/dts/Bindings/rtc/st,stm32-rtc.yaml
@@ -127,6 +127,7 @@ examples:
       st,syscfg = <&pwrcfg 0x00 0x100>;
     };
 
+  - |
     #include <dt-bindings/interrupt-controller/arm-gic.h>
     #include <dt-bindings/clock/stm32mp1-clks.h>
     rtc@5c004000 {
diff --git a/dts/Bindings/rtc/sunplus,sp7021-rtc.yaml b/dts/Bindings/rtc/sunplus,sp7021-rtc.yaml
new file mode 100644
index 0000000000..fd1b3e71ff
--- /dev/null
+++ b/dts/Bindings/rtc/sunplus,sp7021-rtc.yaml
@@ -0,0 +1,56 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+# Copyright (C) Sunplus Co., Ltd. 2021
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/rtc/sunplus,sp7021-rtc.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Sunplus SP7021 Real Time Clock controller
+
+maintainers:
+  - Vincent Shih <vincent.sunplus@gmail.com>
+
+properties:
+  compatible:
+    const: sunplus,sp7021-rtc
+
+  reg:
+    maxItems: 1
+
+  reg-names:
+    items:
+      - const: rtc
+
+  clocks:
+    maxItems: 1
+
+  resets:
+    maxItems: 1
+
+  interrupts:
+    maxItems: 1
+
+required:
+  - compatible
+  - reg
+  - reg-names
+  - clocks
+  - resets
+  - interrupts
+
+additionalProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/interrupt-controller/irq.h>
+
+    rtc: serial@9c003a00 {
+        compatible = "sunplus,sp7021-rtc";
+        reg = <0x9c003a00 0x80>;
+        reg-names = "rtc";
+        clocks = <&clkc 0x12>;
+        resets = <&rstc 0x02>;
+        interrupt-parent = <&intc>;
+        interrupts = <163 IRQ_TYPE_EDGE_RISING>;
+    };
+...