On Mon, Sep 07, 2026 at 03:03:14PM -0600, James Hilliard wrote: > The AC200 is an I2C-controlled mixed-signal companion IC containing > audio, video, RTC and Fast Ethernet PHY functions. > > Describe the shared input clock, audio DAI, TV encoder display graph and > optional bandgap calibration in one parent node. The codec and TV encoder > do not need separate firmware nodes. > > AC_LDOIN and TV_VCC are distinct 3.3 V supply inputs. Describe them > separately without requiring different external regulators. Require the > audio supply when the DAI is described and the video supply when the > display graph is present, while allowing PHY-only configurations. > > Describe the optional shared INTB connection without an internal > interrupt domain. Cable detection status remains readable over I2C when > INTB is not connected. Include wired and unwired examples. > > 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. > It therefore 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: Jernej Skrabec > Signed-off-by: James Hilliard btw, this is kinda odd. Jernej has a signoff, but no other attribution. Are they a coauthor missing a Co-developed-by > --- Reviewed-by: Conor Dooley pw-bot: not-applicable Thanks, Conor. > .../devicetree/bindings/mfd/x-powers,ac200.yaml | 168 +++++++++++++++++++++ > MAINTAINERS | 7 + > 2 files changed, 175 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..75dafa7c1071 > --- /dev/null > +++ b/Documentation/devicetree/bindings/mfd/x-powers,ac200.yaml > @@ -0,0 +1,168 @@ > +# 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 > + - Jernej Skrabec > + > +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. > + The audio codec and TV encoder are described by properties of this node. > + The Ethernet PHY is described separately on its MDIO bus. > + > +allOf: > + - $ref: /schemas/sound/dai-common.yaml# > + > +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. > + > + interrupts: > + maxItems: 1 > + description: > + The shared, level-triggered, open-drain INTB output for the TV encoder, > + Ethernet PHY and RTC interrupts. Omit when INTB is not connected. TV > + encoder cable detection status can also be read over I2C without an > + interrupt. > + > + '#sound-dai-cells': > + const: 0 > + > + ac-ldoin-supply: > + description: > + The 3.3 V supply connected to the AC_LDOIN pin for the audio codec LDO > + input. This may be the same regulator as tv-vcc-supply. > + > + tv-vcc-supply: > + description: > + The 3.3 V supply connected to the TV_VCC pin for the composite-video > + DAC. This may be the same regulator as ac-ldoin-supply. > + > + nvmem-cells: > + maxItems: 1 > + description: TV encoder bandgap calibration. > + > + nvmem-cell-names: > + items: > + - const: bandgap > + > + ports: > + $ref: /schemas/graph.yaml#/properties/ports > + > + properties: > + port@0: > + $ref: /schemas/graph.yaml#/properties/port > + description: Input to the TV encoder, carrying CCIR656. > + > + port@1: > + $ref: /schemas/graph.yaml#/properties/port > + description: Output to the composite-video connector. > + > + required: > + - port@0 > + - port@1 > + > +required: > + - compatible > + - reg > + - clocks > + > +dependencies: > + '#sound-dai-cells': [ ac-ldoin-supply ] > + ports: [ tv-vcc-supply ] > + nvmem-cells: [ nvmem-cell-names ] > + nvmem-cell-names: [ nvmem-cells ] > + > +unevaluatedProperties: false > + > +examples: > + - | > + #include > + > + i2c { > + #address-cells = <1>; > + #size-cells = <0>; > + > + mixed-signal@10 { > + compatible = "x-powers,ac200"; > + reg = <0x10>; > + clocks = <&pwm 5>; > + interrupt-parent = <&pio>; > + interrupts = <1 20 IRQ_TYPE_LEVEL_LOW>; > + #sound-dai-cells = <0>; > + ac-ldoin-supply = <®_aldo2>; > + tv-vcc-supply = <®_aldo2>; > + > + ports { > + #address-cells = <1>; > + #size-cells = <0>; > + > + port@0 { > + reg = <0>; > + > + tve_in: endpoint { > + remote-endpoint = <&tcon_out_tve>; > + }; > + }; > + > + port@1 { > + reg = <1>; > + > + tve_out: endpoint { > + remote-endpoint = <&composite_in>; > + }; > + }; > + }; > + }; > + }; > + - | > + i2c { > + #address-cells = <1>; > + #size-cells = <0>; > + > + mixed-signal@10 { > + compatible = "x-powers,ac200"; > + reg = <0x10>; > + clocks = <&pwm 5>; > + /* INTB is not connected. */ > + tv-vcc-supply = <®_aldo2>; > + > + ports { > + #address-cells = <1>; > + #size-cells = <0>; > + > + port@0 { > + reg = <0>; > + > + endpoint { > + remote-endpoint = <&tcon_out_tve>; > + }; > + }; > + > + port@1 { > + reg = <1>; > + > + endpoint { > + remote-endpoint = <&composite_in>; > + }; > + }; > + }; > + }; > + }; > +... > diff --git a/MAINTAINERS b/MAINTAINERS > index 3a19da74d00c..419340093c9b 100644 > --- a/MAINTAINERS > +++ b/MAINTAINERS > @@ -29504,6 +29504,13 @@ F: drivers/net/wwan/ > F: include/linux/wwan.h > F: include/uapi/linux/wwan.h > > +X-POWERS AC200 DRIVERS > +M: Jernej Skrabec > +M: James Hilliard > +L: linux-sunxi@lists.linux.dev > +S: Maintained > +F: Documentation/devicetree/bindings/mfd/x-powers,ac200.yaml > + > X-POWERS AXP288 PMIC DRIVERS > M: Hans de Goede > S: Maintained > > -- > 2.53.0 >