[PATCH net-next 2/3] dt-bindings: dpll: add SiTime SiT9531x clock generator

[Ali Rouhi]

Add device tree binding documentation for the SiTime SiT95316
and SiT95317 DPLL clock generators.

Signed-off-by: Ali Rouhi <arouhi@xxxxxxxxxx>
---
 .../bindings/dpll/sitime,sit9531x.yaml        | 82 +++++++++++++++++++
 1 file changed, 82 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/dpll/sitime,sit9531x.yaml

diff --git a/Documentation/devicetree/bindings/dpll/sitime,sit9531x.yaml b/Documentation/devicetree/bindings/dpll/sitime,sit9531x.yaml
new file mode 100644
index 000000000000..0b05f0de65b9
--- /dev/null
+++ b/Documentation/devicetree/bindings/dpll/sitime,sit9531x.yaml
@@ -0,0 +1,82 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/dpll/sitime,sit9531x.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: SiTime SiT9531x DPLL Clock Generator
+
+maintainers:
+  - Ali Rouhi <arouhi@xxxxxxxxxx>
+
+description: |
+  The SiTime SiT95316 and SiT95317 are I2C-controlled programmable clock
+  generators with integrated DPLL for synchronization applications.  Both
+  variants contain four PLLs with automatic/manual reference selection,
+  DCO frequency adjustment, and phase offset measurement via an on-chip
+  TDC (Time-to-Digital Converter).
+
+  The SiT95317 provides 4 inputs and 8 outputs; the SiT95316 provides
+  4 inputs and 12 outputs.
+
+  Runtime configuration (reference selection, frequency, phase) is managed
+  through the kernel DPLL netlink subsystem; the device tree describes only
+  the hardware wiring.
+
+properties:
+  compatible:
+    enum:
+      - sitime,sit95316
+      - sitime,sit95317
+
+  reg:
+    maxItems: 1
+
+  reset-gpios:
+    maxItems: 1
+    description:
+      GPIO connected to the chip's active-low reset pin.  If present, the
+      driver holds the line deasserted at probe.  Optional; boards that do
+      not route the reset line omit this property.
+
+  interrupts:
+    maxItems: 1
+    description:
+      Interrupt from the chip's active-low INTRB output.  When wired, the
+      driver uses it to trigger immediate status readback instead of
+      relying solely on periodic polling.  Optional.
+
+required:
+  - compatible
+  - reg
+
+additionalProperties: false
+
+examples:
+  - |
+    i2c {
+        #address-cells = <1>;
+        #size-cells = <0>;
+
+        clock-generator@68 {
+            compatible = "sitime,sit95317";
+            reg = <0x68>;
+        };
+    };
+
+  - |
+    #include <dt-bindings/gpio/gpio.h>
+    #include <dt-bindings/interrupt-controller/irq.h>
+
+    i2c {
+        #address-cells = <1>;
+        #size-cells = <0>;
+
+        clock-generator@68 {
+            compatible = "sitime,sit95316";
+            reg = <0x68>;
+            reset-gpios = <&gpio 78 GPIO_ACTIVE_LOW>;
+            interrupts = <12 IRQ_TYPE_LEVEL_LOW>;
+        };
+    };
+...
-- 
2.43.0