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[v4,2/9] dt-bindings: reset: convert Atmel/Microchip reset controller to YAML

Message ID 20220608083942.1584087-3-claudiu.beznea@microchip.com
State New
Headers show
Series power: reset: at91-reset: add support for sama7g5 | expand

Commit Message

Claudiu Beznea June 8, 2022, 8:39 a.m. UTC
Convert Atmel/Microchip reset controller to YAML.

Signed-off-by: Claudiu Beznea <claudiu.beznea@microchip.com>
Reviewed-by: Rob Herring <robh@kernel.org>
---
 .../devicetree/bindings/arm/atmel-sysregs.txt | 15 ------
 .../reset/atmel,at91sam9260-reset.yaml        | 49 +++++++++++++++++++
 2 files changed, 49 insertions(+), 15 deletions(-)
 create mode 100644 Documentation/devicetree/bindings/reset/atmel,at91sam9260-reset.yaml
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Patch

diff --git a/Documentation/devicetree/bindings/arm/atmel-sysregs.txt b/Documentation/devicetree/bindings/arm/atmel-sysregs.txt
index 16eef600d599..ab1b352344ae 100644
--- a/Documentation/devicetree/bindings/arm/atmel-sysregs.txt
+++ b/Documentation/devicetree/bindings/arm/atmel-sysregs.txt
@@ -25,21 +25,6 @@  System Timer (ST) required properties:
 Its subnodes can be:
 - watchdog: compatible should be "atmel,at91rm9200-wdt"
 
-RSTC Reset Controller required properties:
-- compatible: Should be "atmel,<chip>-rstc".
-  <chip> can be "at91sam9260", "at91sam9g45", "sama5d3" or "samx7"
-  it also can be "microchip,sam9x60-rstc"
-- reg: Should contain registers location and length
-- clocks: phandle to input clock.
-
-Example:
-
-	rstc@fffffd00 {
-		compatible = "atmel,at91sam9260-rstc";
-		reg = <0xfffffd00 0x10>;
-		clocks = <&clk32k>;
-	};
-
 RAMC SDRAM/DDR Controller required properties:
 - compatible: Should be "atmel,at91rm9200-sdramc", "syscon"
 			"atmel,at91sam9260-sdramc",
diff --git a/Documentation/devicetree/bindings/reset/atmel,at91sam9260-reset.yaml b/Documentation/devicetree/bindings/reset/atmel,at91sam9260-reset.yaml
new file mode 100644
index 000000000000..34c40b875e20
--- /dev/null
+++ b/Documentation/devicetree/bindings/reset/atmel,at91sam9260-reset.yaml
@@ -0,0 +1,49 @@ 
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/reset/atmel,at91sam9260-reset.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Atmel/Microchip System Reset Controller
+
+maintainers:
+  - Claudiu Beznea <claudiu.beznea@microchip.com>
+
+description: |
+  The system reset controller can be used to reset the CPU.
+
+properties:
+  compatible:
+    oneOf:
+      - items:
+          - enum:
+              - atmel,at91sam9260-rstc
+              - atmel,at91sam9g45-rstc
+              - atmel,sama5d3-rstc
+              - microchip,sam9x60-rstc
+      - items:
+          - const: atmel,sama5d3-rstc
+          - const: atmel,at91sam9g45-rstc
+
+  reg:
+    maxItems: 1
+
+  clocks:
+    maxItems: 1
+
+required:
+  - compatible
+  - reg
+  - clocks
+
+additionalProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/clock/at91.h>
+
+    reset-controller@fffffd00 {
+        compatible = "atmel,at91sam9260-rstc";
+        reg = <0xfffffd00 0x10>;
+        clocks = <&pmc PMC_TYPE_CORE PMC_SLOW>;
+    };