Document RZ/G2L MTU3 PWM support. It supports following pwm modes.
1) PWM mode 1
2) PWM mode 2
3) Reset-synchronized PWM mode
4) Complementary PWM mode 1 (transfer at crest)
5) Complementary PWM mode 2 (transfer at trough)
6) Complementary PWM mode 3 (transfer at crest and trough)
Signed-off-by: Biju Das <biju.das.jz@xxxxxxxxxxxxxx>
---
.../bindings/mfd/renesas,rzg2l-mtu3.yaml | 50 +++++++++++++++++++
1 file changed, 50 insertions(+)
diff --git a/Documentation/devicetree/bindings/mfd/renesas,rzg2l-mtu3.yaml b/Documentation/devicetree/bindings/mfd/renesas,rzg2l-mtu3.yaml
index c4bcf28623d6..362fedf5bedb 100644
--- a/Documentation/devicetree/bindings/mfd/renesas,rzg2l-mtu3.yaml
+++ b/Documentation/devicetree/bindings/mfd/renesas,rzg2l-mtu3.yaml
@@ -223,6 +223,50 @@ patternProperties:
- compatible
- reg
+ "^pwm@([0-4]|[6-7])+$":
+ type: object
+
+ properties:
+ compatible:
+ const: renesas,rz-mtu3-pwm
+
+ reg:
+ description: Identify pwm channels.
+ items:
+ enum: [ 0, 1, 2, 3, 4, 6, 7 ]
+
+ "#pwm-cells":
+ const: 2
+
+ renesas,pwm-mode1:
+ type: boolean
+ description: Enable PWM mode 1.
+
+ renesas,pwm-mode2:
+ type: boolean
+ description: Enable PWM mode 2.
+
+ renesas,reset-synchronized-pwm-mode:
+ type: boolean
+ description: Enable Reset-synchronized PWM mode.
+
+ renesas,complementary-pwm-mode1:
+ type: boolean
+ description: Complementary PWM mode 1 (transfer at crest).
+
+ renesas,complementary-pwm-mode2:
+ type: boolean
+ description: Complementary PWM mode 2 (transfer at trough).
+
+ renesas,complementary-pwm-mode3:
+ type: boolean
+ description: Complementary PWM mode 3 (transfer at crest and trough).
+
+ required:
+ - compatible
+ - reg
+ - "#pwm-cells"
+
required:
- compatible
- reg
@@ -305,6 +349,12 @@ examples:
compatible = "renesas,rzg2l-mtu3-counter";
reg = <1>;
};
+ pwm@3 {
+ compatible = "renesas,rz-mtu3-pwm";
+ reg = <3>;
+ #pwm-cells = <2>;
+ renesas,pwm-mode1;
+ };
};
...
--
2.25.1
