[PATCH 5/8] dt-bindings: rtc: Add Amlogic Meson vrtc controller binding

Heiner Kallweit hkallweit1 at gmail.com
Mon Jan 23 13:28:49 PST 2023


Add Amlogic Meson vrtc controller binding.
Tested with make targets dt_binding_check and dtbs_check.

Signed-off-by: Heiner Kallweit <hkallweit1 at gmail.com>
---
 .../bindings/rtc/amlogic,meson-vrtc.yaml      | 50 +++++++++++++++++++
 .../bindings/rtc/rtc-meson-vrtc.txt           | 22 --------
 2 files changed, 50 insertions(+), 22 deletions(-)
 create mode 100644 Documentation/devicetree/bindings/rtc/amlogic,meson-vrtc.yaml
 delete mode 100644 Documentation/devicetree/bindings/rtc/rtc-meson-vrtc.txt

diff --git a/Documentation/devicetree/bindings/rtc/amlogic,meson-vrtc.yaml b/Documentation/devicetree/bindings/rtc/amlogic,meson-vrtc.yaml
new file mode 100644
index 000000000..26a70b3ce
--- /dev/null
+++ b/Documentation/devicetree/bindings/rtc/amlogic,meson-vrtc.yaml
@@ -0,0 +1,50 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/rtc/amlogic,meson-vrtc.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Amlogic Virtual RTC (VRTC)
+
+maintainers:
+  - Neil Armstrong <neil.armstrong at linaro.org>
+
+description: |
+  This is a Linux interface to an RTC managed by firmware, hence it's
+  virtual from a Linux perspective.  The interface is 1 register where
+  an alarm time (in seconds) is to be written.
+  The alarm register is a simple scratch register shared between the
+  application processors (AP) and the secure co-processor (SCP.)  When
+  the AP suspends, the SCP will use the value of this register to
+  program an always-on timer before going sleep. When the timer expires,
+  the SCP will wake up and will then wake the AP.
+
+allOf:
+  - $ref: rtc.yaml#
+
+properties:
+  compatible:
+    enum:
+      - amlogic,meson-vrtc
+
+  reg:
+    maxItems: 1
+
+required:
+  - compatible
+  - reg
+
+additionalProperties: false
+
+examples:
+  - |
+    bus at ff800000 {
+      reg = <0x0 0xff800000 0x0 0x100000>;
+      #address-cells = <2>;
+      #size-cells = <2>;
+
+      rtc at a8 {
+        compatible = "amlogic,meson-vrtc";
+        reg = <0x0 0x000a8 0x0 0x4>;
+      };
+    };
diff --git a/Documentation/devicetree/bindings/rtc/rtc-meson-vrtc.txt b/Documentation/devicetree/bindings/rtc/rtc-meson-vrtc.txt
deleted file mode 100644
index c014f54a9..000000000
--- a/Documentation/devicetree/bindings/rtc/rtc-meson-vrtc.txt
+++ /dev/null
@@ -1,22 +0,0 @@
-* Amlogic Virtual RTC (VRTC)
-
-This is a Linux interface to an RTC managed by firmware, hence it's
-virtual from a Linux perspective.  The interface is 1 register where
-an alarm time (in seconds) is to be written.
-
-Required properties:
-- compatible: should be "amlogic,meson-vrtc"
-- reg: physical address for the alarm register
-
-The alarm register is a simple scratch register shared between the
-application processors (AP) and the secure co-processor (SCP.)  When
-the AP suspends, the SCP will use the value of this register to
-program an always-on timer before going sleep. When the timer expires,
-the SCP will wake up and will then wake the AP.
-
-Example:
-
-	vrtc: rtc at 0a8 {
-		compatible = "amlogic,meson-vrtc";
-		reg = <0x0 0x000a8 0x0 0x4>;
-	};
-- 
2.39.1





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