[PATCH 2/2] dt-bindings: watchdog: Add Sunplus SP7021 WDT devicetree bindings documentation

From: Xiantao Hu
Date: Fri Nov 12 2021 - 06:10:32 EST


This adds the documentation for the devicetree bindings of the Sunplus
SP7021 watchdog driver, found from SP7021 SoCs and newer.

Signed-off-by: Xiantao Hu <xt.hu@xxxxxxxxxxx>
---
.../bindings/watchdog/sunplus,sp7021-wdt.yaml | 47 +++++++++++++++++++
MAINTAINERS | 1 +
2 files changed, 48 insertions(+)
create mode 100644 Documentation/devicetree/bindings/watchdog/sunplus,sp7021-wdt.yaml

diff --git a/Documentation/devicetree/bindings/watchdog/sunplus,sp7021-wdt.yaml b/Documentation/devicetree/bindings/watchdog/sunplus,sp7021-wdt.yaml
new file mode 100644
index 000000000..bb728f298
--- /dev/null
+++ b/Documentation/devicetree/bindings/watchdog/sunplus,sp7021-wdt.yaml
@@ -0,0 +1,47 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+# Copyright (C) Sunplus Co., Ltd. 2021
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/watchdog/sunplus,sp7021-wdt.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Sunplus SoCs Watchdog Device Tree Bindings
+
+maintainers:
+ - XianTao Hu <xt.hu@xxxxxxxxxxx>
+
+allOf:
+ - $ref: watchdog.yaml#
+
+properties:
+ compatible:
+ const: sunplus,sp7021-wdt
+
+ reg:
+ items:
+ - description: Base address and length of the watchdog registers
+ - description: Base address and length of the miscellaneous control registers
+
+ clocks:
+ maxItems: 1
+
+ resets:
+ maxItems: 1
+
+required:
+ - compatible
+ - reg
+ - clocks
+ - resets
+
+additionalProperties: false
+
+examples:
+ - |
+ watchdog: watchdog@9c000630 {
+ compatible = "sunplus,sp7021-wdt";
+ reg = <0x9c000630 0x08>, <0x9C000274 0x04>;
+ clocks = <&clkc 0x24>;
+ resets = <&rstc 0x14>;
+ };
+...
diff --git a/MAINTAINERS b/MAINTAINERS
index f6a328772..d51f0cb1a 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -17937,6 +17937,7 @@ SUNPLUS WATCHDOG DRIVER
M: Xiantao Hu <xt.hu@xxxxxxxxxxx>
L: linux-watchdog@xxxxxxxxxxxxxxx
S: Maintained
+F: Documentation/devicetree/bindings/watchdog/sunplus,sp7021-wdt.yaml
F: drivers/watchdog/sunplus_wdt.c

SUPERH
--
2.33.1