[PATCH v3] dt-bindings: watchdog: alphascale-asm9260: convert to DT schema

From: Om Parikh
Date: Tue Apr 18 2023 - 01:16:34 EST


Makes alphascale-asm9260 dt bindings adhere to the dt json-schema
by replacing txt file with yaml file.

Signed-off-by: Om Parikh <hack3r-0m@xxxxxxxxx>
---
v1 -> v2:
- drop quotes in "$ref" value
- update compatible string from board name to node name
- drop "Olof Johansson" from maintainers
- update "compatible" property from enum to const
- drop generic reset description

v2 -> v3:
- drop timeout-sec property
- update description for mode property
- set default as "hw" for mode enum

.../watchdog/alphascale,asm9260-wdt.yaml | 70 +++++++++++++++++++
.../bindings/watchdog/alphascale-asm9260.txt | 35 ----------
2 files changed, 70 insertions(+), 35 deletions(-)
create mode 100644 Documentation/devicetree/bindings/watchdog/alphascale,asm9260-wdt.yaml
delete mode 100644 Documentation/devicetree/bindings/watchdog/alphascale-asm9260.txt

diff --git a/Documentation/devicetree/bindings/watchdog/alphascale,asm9260-wdt.yaml b/Documentation/devicetree/bindings/watchdog/alphascale,asm9260-wdt.yaml
new file mode 100644
index 000000000000..fea84f5b7e6d
--- /dev/null
+++ b/Documentation/devicetree/bindings/watchdog/alphascale,asm9260-wdt.yaml
@@ -0,0 +1,70 @@
+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/watchdog/alphascale,asm9260-wdt.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Alphascale asm9260 Watchdog timer
+
+allOf:
+ - $ref: watchdog.yaml#
+
+maintainers:
+ - Oleksij Rempel <linux@xxxxxxxxxxxxxxxx>
+
+properties:
+ compatible:
+ const: alphascale,asm9260-wdt
+
+ reg:
+ maxItems: 1
+
+ clocks:
+ items:
+ - description: source clock, used for tick counter
+ - description: ahb gate
+
+ clock-names:
+ items:
+ - const: mod
+ - const: ahb
+
+ interrupts:
+ maxItems: 1
+
+ resets:
+ maxItems: 1
+
+ reset-names:
+ items:
+ - const: wdt_rst
+
+ alphascale,mode:
+ description: |
+ Specifies the reset mode of operation. If set to sw, then reset is handled
+ via interrupt request, if set to debug, then it does nothing and logs.
+ $ref: /schemas/types.yaml#/definitions/string
+ enum: [hw, sw, debug]
+ default: hw
+
+required:
+ - compatible
+ - reg
+ - clocks
+ - clock-names
+ - interrupts
+
+unevaluatedProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/clock/alphascale,asm9260.h>
+ watchdog0: watchdog@80048000 {
+ compatible = "alphascale,asm9260-wdt";
+ reg = <0x80048000 0x10>;
+ clocks = <&acc CLKID_SYS_WDT>, <&acc CLKID_AHB_WDT>;
+ clock-names = "mod", "ahb";
+ interrupts = <55>;
+ timeout-sec = <30>;
+ alphascale,mode = "hw";
+ };
diff --git a/Documentation/devicetree/bindings/watchdog/alphascale-asm9260.txt b/Documentation/devicetree/bindings/watchdog/alphascale-asm9260.txt
deleted file mode 100644
index 75b265a04047..000000000000
--- a/Documentation/devicetree/bindings/watchdog/alphascale-asm9260.txt
+++ /dev/null
@@ -1,35 +0,0 @@
-Alphascale asm9260 Watchdog timer
-
-Required properties:
-
-- compatible : should be "alphascale,asm9260-wdt".
-- reg : Specifies base physical address and size of the registers.
-- clocks : the clocks feeding the watchdog timer. See clock-bindings.txt
-- clock-names : should be set to
- "mod" - source for tick counter.
- "ahb" - ahb gate.
-- resets : phandle pointing to the system reset controller with
- line index for the watchdog.
-- reset-names : should be set to "wdt_rst".
-
-Optional properties:
-- timeout-sec : shall contain the default watchdog timeout in seconds,
- if unset, the default timeout is 30 seconds.
-- alphascale,mode : three modes are supported
- "hw" - hw reset (default).
- "sw" - sw reset.
- "debug" - no action is taken.
-
-Example:
-
-watchdog0: watchdog@80048000 {
- compatible = "alphascale,asm9260-wdt";
- reg = <0x80048000 0x10>;
- clocks = <&acc CLKID_SYS_WDT>, <&acc CLKID_AHB_WDT>;
- clock-names = "mod", "ahb";
- interrupts = <55>;
- resets = <&rst WDT_RESET>;
- reset-names = "wdt_rst";
- timeout-sec = <30>;
- alphascale,mode = "hw";
-};
--
2.40.0