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Subject[v4 2/5] dt-bindings: pwm: Add bindings for aspeed pwm controller
Date
Add the aspeed pwm device bindings which should be the child-node of
pwm-tach mfd.

Signed-off-by: Billy Tsai <billy_tsai@aspeedtech.com>
---
.../bindings/pwm/aspeed,ast2600-pwm.yaml | 54 +++++++++++++++++++
1 file changed, 54 insertions(+)
create mode 100644 Documentation/devicetree/bindings/pwm/aspeed,ast2600-pwm.yaml

diff --git a/Documentation/devicetree/bindings/pwm/aspeed,ast2600-pwm.yaml b/Documentation/devicetree/bindings/pwm/aspeed,ast2600-pwm.yaml
new file mode 100644
index 000000000000..68a60fc73902
--- /dev/null
+++ b/Documentation/devicetree/bindings/pwm/aspeed,ast2600-pwm.yaml
@@ -0,0 +1,54 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+# Copyright (C) 2021 Aspeed, Inc.
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/pwm/aspeed,ast2600-pwm.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Aspeed Ast2600 PWM controller
+
+maintainers:
+ - Billy Tsai <billy_tsai@aspeedtech.com>
+
+description: |
+ The Aspeed PWM controller supports up to 16 PWM outputs.
+ This module is part of the ast2600-pwm-tach multi-function device. For more
+ details see ../mfd/aspeed,ast2600-pwm-tach.yaml.
+
+allOf:
+ - $ref: pwm.yaml#
+
+properties:
+ compatible:
+ enum:
+ - aspeed,ast2600-pwm
+
+ "#pwm-cells":
+ const: 3
+patternProperties:
+ "^pwm@[a-z0-9]+$":
+ description: Set extend properties for each pwm channel.
+ type: object
+ properties:
+ reg:
+ description:
+ The pwm channel index.
+ maxItems: 1
+
+ aspeed,wdt-reload-enable:
+ type: boolean
+ description:
+ Enable the function of wdt reset reload duty point.
+
+ aspeed,wdt-reload-duty-point:
+ description:
+ Define the duty point after wdt reset, 0 = 100%
+ minimum: 0
+ maximum: 255
+ required:
+ - reg
+
+required:
+ - compatible
+
+additionalProperties: false
--
2.25.1
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