[v5 3/5] dt-bindings: mfd: Add aspeed pwm-tach binding

From: Billy Tsai
Date: Tue Jun 06 2023 - 05:59:09 EST


Add device binding for aspeed pwm-tach device which is a multi-function
device include pwm and tach function.

Signed-off-by: Billy Tsai <billy_tsai@xxxxxxxxxxxxxx>

---
.../bindings/mfd/aspeed,ast2600-pwm-tach.yaml | 76 +++++++++++++++++++
1 file changed, 76 insertions(+)
create mode 100644 Documentation/devicetree/bindings/mfd/aspeed,ast2600-pwm-tach.yaml

diff --git a/Documentation/devicetree/bindings/mfd/aspeed,ast2600-pwm-tach.yaml b/Documentation/devicetree/bindings/mfd/aspeed,ast2600-pwm-tach.yaml
new file mode 100644
index 000000000000..f98c11ff3f8a
--- /dev/null
+++ b/Documentation/devicetree/bindings/mfd/aspeed,ast2600-pwm-tach.yaml
@@ -0,0 +1,76 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+# Copyright (C) 2021 Aspeed, Inc.
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/mfd/aspeed,ast2600-pwm-tach.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: PWM Tach controller
+
+description: |
+ The PWM Tach controller is represented as a multi-function device which
+ includes:
+ PWM
+ Tach
+
+maintainers:
+ - Billy Tsai <billy_tsai@xxxxxxxxxxxxxx>
+
+properties:
+ compatible:
+ items:
+ - enum:
+ - aspeed,ast2600-pwm-tach
+ - const: syscon
+ - const: simple-mfd
+
+ reg:
+ maxItems: 1
+
+ clocks:
+ maxItems: 1
+
+ resets:
+ maxItems: 1
+
+ pwm:
+ type: object
+ $ref: "/schemas/pwm/aspeed,ast2600-pwm.yaml"
+
+ tach:
+ type: object
+ $ref: "/schemas/hwmon/aspeed,ast2600-tach.yaml"
+
+required:
+ - compatible
+ - reg
+ - clocks
+ - resets
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/clock/ast2600-clock.h>
+ pwm_tach: pwm-tach@1e610000 {
+ compatible = "aspeed,ast2600-pwm-tach", "syscon", "simple-mfd";
+ reg = <0x1e610000 0x100>;
+ clocks = <&syscon ASPEED_CLK_AHB>;
+ resets = <&syscon ASPEED_RESET_PWM>;
+
+ pwm: pwm {
+ compatible = "aspeed,ast2600-pwm";
+ #pwm-cells = <3>;
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_pwm0_default>;
+ };
+
+ tach: tach {
+ compatible = "aspeed,ast2600-tach";
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_tach0_default>;
+ fan@0 {
+ reg = <0x00>;
+ };
+ };
+ };
--
2.25.1