[PATCH v3 net-next 2/8] dt-bindings: dpll: Add support for Microchip Azurite chip family

Ivan Vecera
2025-04-16T16:22:08Z

Add DT bindings for Microchip Azurite DPLL chip family. These chips
provides up to 5 independent DPLL channels, 10 differential or
single-ended inputs and 10 differential or 20 single-ended outputs.
It can be connected via I2C or SPI busses.

Signed-off-by: Ivan Vecera <ivecera@redhat.com>
---
v1->v3:
* single file for both i2c & spi
* 5 compatibles for all supported chips from the family
---
.../bindings/dpll/microchip,zl30731.yaml | 115 ++++++++++++++++++
1 file changed, 115 insertions(+)
create mode 100644 Documentation/devicetree/bindings/dpll/microchip,zl30731.yaml

diff --git a/Documentation/devicetree/bindings/dpll/microchip,zl30731.yaml b/Documentation/devicetree/bindings/dpll/microchip,zl30731.yaml
new file mode 100644
index 0000000000000..cb1486d140382
--- /dev/null
+++ b/Documentation/devicetree/bindings/dpll/microchip,zl30731.yaml
@@ -0,0 +1,115 @@
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/dpll/microchip,zl3073x.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Microchip Azurite DPLL device
+
+maintainers:
+ - Ivan Vecera <ivecera@redhat.com>
+
+description:
+ Microchip Azurite DPLL (ZL3073x) is a family of DPLL devices that
+ provides up to 5 independent DPLL channels, up to 10 differential or
+ single-ended inputs and 10 differential or 20 single-ended outputs.
+ These devices support both I2C and SPI interfaces.
+
+properties:
+ compatible:
+ enum:
+ - microchip,zl30731
+ - microchip,zl30732
+ - microchip,zl30733
+ - microchip,zl30734
+ - microchip,zl30735
+
+ reg:
+ maxItems: 1
+
+required:
+ - compatible
+ - reg
+
+allOf:
+ - $ref: /schemas/dpll/dpll-device.yaml#
+ - $ref: /schemas/spi/spi-peripheral-props.yaml#
+
+unevaluatedProperties: false
+
+examples:
+ - |
+ i2c {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ dpll@70 {
+ compatible = "microchip,zl30732";
+ reg = <0x70>;
+ dpll-types = "pps", "eec";
+
+ input-pins {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ pin@0 { /* REF0P */
+ reg = <0>;
+ label = "Input 0";
+ supported-frequencies = /bits/ 64 <1 1000>;
+ type = "ext";
+ };
+ };
+
+ output-pins {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ pin@3 { /* OUT1N */
+ reg = <3>;
+ esync-control;
+ label = "Output 1";
+ supported-frequencies = /bits/ 64 <1 10000>;
+ type = "gnss";
+ };
+ };
+ };
+ };
+ - |
+ spi {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ dpll@70 {
+ compatible = "microchip,zl30731";
+ reg = <0x70>;
+ spi-max-frequency = <12500000>;
+
+ dpll-types = "pps";
+
+ input-pins {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ pin@0 { /* REF0P */
+ reg = <0>;
+ label = "Input 0";
+ supported-frequencies = /bits/ 64 <1 1000>;
+ type = "ext";
+ };
+ };
+
+ output-pins {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ pin@3 { /* OUT1N */
+ reg = <3>;
+ esync-control;
+ label = "Output 1";
+ supported-frequencies = /bits/ 64 <1 10000>;
+ type = "gnss";
+ };
+ };
+ };
+ };
+...
--
2.48.1