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[174.29.1.49]) by smtp.gmail.com with ESMTPSA id 46e09a7af769-814e0a13a73sm2679320a34.0.2026.09.22.09.34.43 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 22 Sep 2026 09:34:44 -0700 (PDT) From: James Hilliard Date: Tue, 22 Sep 2026 10:34:34 -0600 Subject: [PATCH v13 1/2] dt-bindings: mfd: x-powers: Add AC200 Precedence: bulk X-Mailing-List: devicetree@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit Message-Id: <20260922-submit-ac200-mfd-v13-1-8832afd2481c@gmail.com> References: <20260922-submit-ac200-mfd-v13-0-8832afd2481c@gmail.com> In-Reply-To: <20260922-submit-ac200-mfd-v13-0-8832afd2481c@gmail.com> To: Jernej Skrabec , James Hilliard , Lee Jones , Arnd Bergmann , Rob Herring , Krzysztof Kozlowski , Conor Dooley Cc: Andrew Lunn , "Jagielski, Jedrzej" , Andre Przywara , Chen-Yu Tsai , linux-sunxi@lists.linux.dev, mfd@lists.linux.dev, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, Conor Dooley X-Mailer: b4 0.15.2 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. Co-developed-by: Jernej Skrabec Signed-off-by: Jernej Skrabec Signed-off-by: James Hilliard Reviewed-by: Conor Dooley --- .../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