[PATCH net-next v3 1/4] dt-bindings: mfd: x-powers: add AC200

[James Hilliard]

The AC200 is an I2C-controlled mixed-signal companion IC containing
audio, video, RTC and Fast Ethernet PHY functions.

Describe the parent device, its input clock and the four package
supplies. The Ethernet PHY is represented by a PHY package on its MDIO
bus, with a phandle back to this device for access to the package control
registers, so it does not require an MFD child node.

The input clock must run at 24 or 27 MHz when the Ethernet PHY is used,
matching the rates encoded by its documented clock selector.

Signed-off-by: James Hilliard <james.hilliard1@xxxxxxxxx>
---
 .../devicetree/bindings/mfd/x-powers,ac200.yaml    | 69 ++++++++++++++++++++++
 1 file changed, 69 insertions(+)

diff --git a/Documentation/devicetree/bindings/mfd/x-powers,ac200.yaml b/Documentation/devicetree/bindings/mfd/x-powers,ac200.yaml
new file mode 100644
index 000000000000..b7e8d9bd5661
--- /dev/null
+++ b/Documentation/devicetree/bindings/mfd/x-powers,ac200.yaml
@@ -0,0 +1,69 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/mfd/x-powers,ac200.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: X-Powers AC200 mixed-signal IC
+
+maintainers:
+  - James Hilliard <james.hilliard1@xxxxxxxxx>
+
+description:
+  The AC200 is a mixed-signal companion IC containing audio, video, RTC and
+  Fast Ethernet PHY functions. Its control registers are accessed over I2C.
+
+properties:
+  compatible:
+    const: x-powers,ac200
+
+  reg:
+    maxItems: 1
+
+  clocks:
+    maxItems: 1
+    description:
+      AC200 input clock. When using the Ethernet PHY, its configured rate must
+      be 24 or 27 MHz, matching the rates encoded by the documented EPHY clock
+      selector.
+
+  ac-ldoin-supply:
+    description: 3.3 V supply for the audio-codec LDO input
+
+  ephy-vcc-supply:
+    description: 3.3 V supply for the Ethernet PHY analog front end
+
+  rtc-vcc-supply:
+    description: 3.3 V supply for the RTC
+
+  tv-vcc-supply:
+    description: 3.3 V supply for the TV encoder DAC
+
+required:
+  - compatible
+  - reg
+  - clocks
+  - ac-ldoin-supply
+  - ephy-vcc-supply
+  - rtc-vcc-supply
+  - tv-vcc-supply
+
+additionalProperties: false
+
+examples:
+  - |
+    i2c {
+        #address-cells = <1>;
+        #size-cells = <0>;
+
+        mixed-signal@10 {
+            compatible = "x-powers,ac200";
+            reg = <0x10>;
+            clocks = <&pwm 5>;
+            ac-ldoin-supply = <&reg_3v3>;
+            ephy-vcc-supply = <&reg_3v3>;
+            rtc-vcc-supply = <&reg_3v3>;
+            tv-vcc-supply = <&reg_3v3>;
+        };
+    };
+...

-- 
2.53.0