linux-kernel - [PATCH 1/6] dt-bindings: rtc: convert rtc-meson-vrtc.txt to dt-schema

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Date:   Thu, 09 Feb 2023 14:41:37 +0100
From:   Neil Armstrong <neil.armstrong@...aro.org>
To:     Alessandro Zummo <a.zummo@...ertech.it>,
        Alexandre Belloni <alexandre.belloni@...tlin.com>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Kevin Hilman <khilman@...libre.com>,
        Jerome Brunet <jbrunet@...libre.com>,
        Martin Blumenstingl <martin.blumenstingl@...glemail.com>,
        Michael Turquette <mturquette@...libre.com>,
        Stephen Boyd <sboyd@...nel.org>
Cc:     linux-rtc@...r.kernel.org, devicetree@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org,
        linux-amlogic@...ts.infradead.org, linux-kernel@...r.kernel.org,
        linux-clk@...r.kernel.org,
        Neil Armstrong <neil.armstrong@...aro.org>
Subject: [PATCH 1/6] dt-bindings: rtc: convert rtc-meson-vrtc.txt to
 dt-schema

Convert the Amlogic Virtual RTC bindings to dt-schema.

Signed-off-by: Neil Armstrong <neil.armstrong@...aro.org>
---
 .../bindings/rtc/amlogic,meson-vrtc.yaml           | 42 ++++++++++++++++++++++
 .../devicetree/bindings/rtc/rtc-meson-vrtc.txt     | 22 ------------
 2 files changed, 42 insertions(+), 22 deletions(-)

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 000000000000..1d5694c08965
--- /dev/null
+++ b/Documentation/devicetree/bindings/rtc/amlogic,meson-vrtc.yaml
@@ -0,0 +1,42 @@
+# 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@...aro.org>
+
+description:
+  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:
+    const: amlogic,meson-vrtc
+
+  reg:
+    maxItems: 1
+
+required:
+  - compatible
+  - reg
+
+unevaluatedProperties: false
+
+examples:
+  - |
+    vrtc: rtc@a8 {
+        compatible = "amlogic,meson-vrtc";
+        reg = <0x000a8 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 c014f54a9853..000000000000
--- 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@0a8 {
-		compatible = "amlogic,meson-vrtc";
-		reg = <0x0 0x000a8 0x0 0x4>;
-	};

-- 
2.34.1