diff mbox series

[v8,1/2] dt-bindings: mfd: x-powers: Add AC200

Message ID 20260902-submit-ac200-mfd-v8-1-2aa06720b8ac@gmail.com (mailing list archive)
State New
Headers
Series mfd: add X-Powers AC200 support |

Commit Message

James Hilliard Sept. 2, 2026, 7:28 p.m. UTC 
The AC200 is an I2C-controlled mixed-signal companion IC containing
audio, video, RTC and Fast Ethernet PHY functions.

Describe the parent device and its shared input clock. 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. Function-specific supplies belong to their
consumer bindings rather than the shared parent.

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.

Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@oss.qualcomm.com>
Signed-off-by: James Hilliard <james.hilliard1@gmail.com>
---
 .../devicetree/bindings/mfd/x-powers,ac200.yaml    | 49 ++++++++++++++++++++++
 1 file changed, 49 insertions(+)

Comments

sashiko-bot@kernel.org Sept. 2, 2026, 7:35 p.m. UTC | #1 
> The AC200 is an I2C-controlled mixed-signal companion IC containing
> audio, video, RTC and Fast Ethernet PHY functions.
> 
> Describe the parent device and its shared input clock. 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. Function-specific supplies belong to their
> consumer bindings rather than the shared parent.
> 
> 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.
> 
> Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@oss.qualcomm.com>
> Signed-off-by: James Hilliard <james.hilliard1@gmail.com>

Sashiko has reviewed this patch and found no issues. It looks great!
diff mbox series

Patch

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..609831b15c80
--- /dev/null
+++ b/Documentation/devicetree/bindings/mfd/x-powers,ac200.yaml
@@ -0,0 +1,49 @@ 
+# 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@gmail.com>
+
+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.
+
+required:
+  - compatible
+  - reg
+  - clocks
+
+additionalProperties: false
+
+examples:
+  - |
+    i2c {
+        #address-cells = <1>;
+        #size-cells = <0>;
+
+        mixed-signal@10 {
+            compatible = "x-powers,ac200";
+            reg = <0x10>;
+            clocks = <&pwm 5>;
+        };
+    };
+...