Convert Xilinx watchdog bindings to DT schema format using json-schema
Signed-off-by: Shubhrajyoti Datta <shubhrajyoti.datta@xxxxxxxxxx>
Signed-off-by: Radhey Shyam Pandey <radhey.shyam.pandey@xxxxxxxxxx>
Signed-off-by: Srinivas Neeli <srinivas.neeli@xxxxxxxxxx>
---
Changes in V2:
- Updated file name with compatible.
- Added subsystem name in subject prefix.
- Address minior comments.
---
.../bindings/watchdog/of-xilinx-wdt.txt | 26 -------
.../watchdog/xlnx,xps-timebase-wdt.yaml | 68 +++++++++++++++++++
2 files changed, 68 insertions(+), 26 deletions(-)
delete mode 100644 Documentation/devicetree/bindings/watchdog/of-xilinx-wdt.txt
create mode 100644 Documentation/devicetree/bindings/watchdog/xlnx,xps-timebase-wdt.yaml
diff --git a/Documentation/devicetree/bindings/watchdog/of-xilinx-wdt.txt b/Documentation/devicetree/bindings/watchdog/of-xilinx-wdt.txt
deleted file mode 100644
index c6ae9c9d5e3e..000000000000
--- a/Documentation/devicetree/bindings/watchdog/of-xilinx-wdt.txt
+++ /dev/null
@@ -1,26 +0,0 @@
-Xilinx AXI/PLB soft-core watchdog Device Tree Bindings
----------------------------------------------------------
-
-Required properties:
-- compatible : Should be "xlnx,xps-timebase-wdt-1.00.a" or
- "xlnx,xps-timebase-wdt-1.01.a".
-- reg : Physical base address and size
-
-Optional properties:
-- clocks : Input clock specifier. Refer to common clock
- bindings.
-- clock-frequency : Frequency of clock in Hz
-- xlnx,wdt-enable-once : 0 - Watchdog can be restarted
- 1 - Watchdog can be enabled just once
-- xlnx,wdt-interval : Watchdog timeout interval in 2^<val> clock cycles,
- <val> is integer from 8 to 31.
-
-Example:
-axi-timebase-wdt@40100000 {
- clock-frequency = <50000000>;
- compatible = "xlnx,xps-timebase-wdt-1.00.a";
- clocks = <&clkc 15>;
- reg = <0x40100000 0x10000>;
- xlnx,wdt-enable-once = <0x0>;
- xlnx,wdt-interval = <0x1b>;
-} ;
diff --git a/Documentation/devicetree/bindings/watchdog/xlnx,xps-timebase-wdt.yaml b/Documentation/devicetree/bindings/watchdog/xlnx,xps-timebase-wdt.yaml
new file mode 100644
index 000000000000..493a1c954707
--- /dev/null
+++ b/Documentation/devicetree/bindings/watchdog/xlnx,xps-timebase-wdt.yaml
@@ -0,0 +1,68 @@
+# SPDX-License-Identifier: GPL-2.0-or-later OR BSD-2-Clause
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/watchdog/xlnx,xps-timebase-wdt.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Xilinx AXI/PLB softcore and window Watchdog Timer
+
+maintainers:
+ - Shubhrajyoti Datta <shubhrajyoti.datta@xxxxxxxxxx>
+ - Srinivas Neeli <srinivas.neeli@xxxxxxxxxx>
+
+description:
+ The Timebase watchdog timer(WDT) is a free-running 32 bit counter.
+ WDT uses a dual-expiration architecture. After one expiration of
+ the timeout interval, an interrupt is generated and the WDT state
+ bit is set to one in the status register. If the state bit is not
+ cleared (by writing a one to the state bit) before the next
+ expiration of the timeout interval, a WDT reset is generated.
+
+allOf:
+ - $ref: watchdog.yaml#
+
+properties:
+ compatible:
+ enum:
+ - xlnx,xps-timebase-wdt-1.01.a
+ - xlnx,xps-timebase-wdt-1.00.a
+
+ reg:
+ maxItems: 1
+
+ clocks:
+ maxItems: 1
+
+ clock-frequency:
+ description: Frequency of clock in Hz
+
+ xlnx,wdt-interval:
+ $ref: /schemas/types.yaml#/definitions/uint32
+ description: Watchdog timeout interval
+ minimum: 8
+ maximum: 32
+
+ xlnx,wdt-enable-once:
+ $ref: /schemas/types.yaml#/definitions/uint32
+ enum: [0, 1]
+ description: If watchdog is configured as enable once,
+ then the watchdog cannot be disabled after
+ it has been enabled.
+
+required:
+ - compatible
+ - reg
+
+unevaluatedProperties: false
+
+examples:
+ - |
+ watchdog@40100000 {
+ compatible = "xlnx,xps-timebase-wdt-1.00.a";
+ reg = <0x40100000 0x1000>;
+ clock-frequency = <50000000>;
+ clocks = <&clkc 15>;
+ xlnx,wdt-enable-once = <0x0>;
+ xlnx,wdt-interval = <0x1b>;
+ };
+...
--
2.17.1
