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From:   Claudiu Beznea <claudiu.beznea@microchip.com>
To:     <robh+dt@kernel.org>, <krzysztof.kozlowski+dt@linaro.org>,
        <nicolas.ferre@microchip.com>, <alexandre.belloni@bootlin.com>,
        <sre@kernel.org>, <conor+dt@kernel.org>
CC:     <devicetree@vger.kernel.org>,
        <linux-arm-kernel@lists.infradead.org>,
        <linux-kernel@vger.kernel.org>, <linux-pm@vger.kernel.org>,
        Claudiu Beznea <claudiu.beznea@microchip.com>,
        Conor Dooley <conor.dooley@microchip.com>
Subject: [PATCH v3 2/4] dt-bindings: power: reset: atmel,at91sam9260-shdwc: convert to yaml
Date:   Fri, 16 Jun 2023 13:16:44 +0300
Message-ID: <20230616101646.879480-3-claudiu.beznea@microchip.com>
In-Reply-To: <20230616101646.879480-1-claudiu.beznea@microchip.com>
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Convert Microchip AT91 shutdown controller to YAML.

Signed-off-by: Claudiu Beznea <claudiu.beznea@microchip.com>
Reviewed-by: Conor Dooley <conor.dooley@microchip.com>
Acked-by: Nicolas Ferre <nicolas.ferre@microchip.com>
---
 .../devicetree/bindings/arm/atmel-sysregs.txt | 31 -------
 .../power/reset/atmel,at91sam9260-shdwc.yaml  | 82 +++++++++++++++++++
 2 files changed, 82 insertions(+), 31 deletions(-)
 create mode 100644 Documentation/devicetree/bindings/power/reset/atmel,at91sam9260-shdwc.yaml

diff --git a/Documentation/devicetree/bindings/arm/atmel-sysregs.txt b/Documentation/devicetree/bindings/arm/atmel-sysregs.txt
index ab1b352344ae..e6b2fb291b45 100644
--- a/Documentation/devicetree/bindings/arm/atmel-sysregs.txt
+++ b/Documentation/devicetree/bindings/arm/atmel-sysregs.txt
@@ -52,37 +52,6 @@ Example:
 		reg = <0xe3804000 0x1000>;
 };
 
-SHDWC Shutdown Controller
-
-required properties:
-- compatible: Should be "atmel,<chip>-shdwc".
-  <chip> can be "at91sam9260", "at91sam9rl" or "at91sam9x5".
-- reg: Should contain registers location and length
-- clocks: phandle to input clock.
-
-optional properties:
-- atmel,wakeup-mode: String, operation mode of the wakeup mode.
-  Supported values are: "none", "high", "low", "any".
-- atmel,wakeup-counter: Counter on Wake-up 0 (between 0x0 and 0xf).
-
-optional at91sam9260 properties:
-- atmel,wakeup-rtt-timer: boolean to enable Real-time Timer Wake-up.
-
-optional at91sam9rl properties:
-- atmel,wakeup-rtc-timer: boolean to enable Real-time Clock Wake-up.
-- atmel,wakeup-rtt-timer: boolean to enable Real-time Timer Wake-up.
-
-optional at91sam9x5 properties:
-- atmel,wakeup-rtc-timer: boolean to enable Real-time Clock Wake-up.
-
-Example:
-
-	shdwc@fffffd10 {
-		compatible = "atmel,at91sam9260-shdwc";
-		reg = <0xfffffd10 0x10>;
-		clocks = <&clk32k>;
-	};
-
 SHDWC SAMA5D2-Compatible Shutdown Controller
 
 1) shdwc node
diff --git a/Documentation/devicetree/bindings/power/reset/atmel,at91sam9260-shdwc.yaml b/Documentation/devicetree/bindings/power/reset/atmel,at91sam9260-shdwc.yaml
new file mode 100644
index 000000000000..f559a2cfd82e
--- /dev/null
+++ b/Documentation/devicetree/bindings/power/reset/atmel,at91sam9260-shdwc.yaml
@@ -0,0 +1,82 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/power/reset/atmel,at91sam9260-shdwc.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Microchip AT91 SHDWC Shutdown Controller
+
+maintainers:
+  - Claudiu Beznea <claudiu.beznea@microchip.com>
+
+description: |
+  Microchip AT91 SHDWC shutdown controller controls the power supplies VDDIO
+  and VDDCORE and the wake-up detection on debounced input lines.
+
+properties:
+  compatible:
+    enum:
+      - atmel,at91sam9260-shdwc
+      - atmel,at91sam9rl-shdwc
+      - atmel,at91sam9x5-shdwc
+
+  reg:
+    maxItems: 1
+
+  clocks:
+    maxItems: 1
+
+  atmel,wakeup-mode:
+    description: operation mode of the wakeup mode
+    $ref: /schemas/types.yaml#/definitions/string
+    enum: [ none, high, low, any ]
+
+  atmel,wakeup-counter:
+    description: counter on wake-up 0
+    $ref: /schemas/types.yaml#/definitions/uint32
+    minimum: 0
+    maximum: 15
+
+  atmel,wakeup-rtt-timer:
+    description: enable real-time timer wake-up
+    type: boolean
+
+  atmel,wakeup-rtc-timer:
+    description: enable real-time clock wake-up
+    type: boolean
+
+required:
+  - compatible
+  - reg
+  - clocks
+
+allOf:
+  - if:
+      properties:
+        compatible:
+          contains:
+            const: atmel,at91sam9x5-shdwc
+    then:
+      properties:
+        atmel,wakeup-rtt-timer: false
+
+  - if:
+      properties:
+        compatible:
+          contains:
+            const: atmel,at91sam9260-shdwc
+    then:
+      properties:
+        atmel,wakeup-rtc-timer: false
+
+additionalProperties: false
+
+examples:
+  - |
+    shdwc: poweroff@fffffd10 {
+        compatible = "atmel,at91sam9260-shdwc";
+        reg = <0xfffffd10 0x10>;
+        clocks = <&clk32k>;
+    };
+
+...
-- 
2.34.1