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Fri, 27 Oct 2023 06:28:11 +0000 Received: from PA4PR03MB7136.eurprd03.prod.outlook.com ([fe80::2211:9053:228e:4e40]) by PA4PR03MB7136.eurprd03.prod.outlook.com ([fe80::2211:9053:228e:4e40%3]) with mapi id 15.20.6933.022; Fri, 27 Oct 2023 06:28:11 +0000 From: Oleksii Moisieiev To: "sudeep.holla@arm.com" CC: Oleksii Moisieiev , Cristian Marussi , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Linus Walleij , "linux-arm-kernel@lists.infradead.org" , "devicetree@vger.kernel.org" , "linux-kernel@vger.kernel.org" , "linux-gpio@vger.kernel.org" Subject: [RFC v5 5/5] dt-bindings: firmware: arm, scmi: Add support for pinctrl protocol Thread-Topic: [RFC v5 5/5] dt-bindings: firmware: arm,scmi: Add support for pinctrl protocol Thread-Index: AQHaCJ7CNWHZc0R0IUas1KWQRTDeQw== Date: Fri, 27 Oct 2023 06:28:11 +0000 Message-ID: References: In-Reply-To: Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-ms-publictraffictype: Email x-ms-traffictypediagnostic: PA4PR03MB7136:EE_|GV2PR03MB8876:EE_ x-ms-office365-filtering-correlation-id: 577086e1-406b-4be6-5fcd-08dbd6b5e490 x-ms-exchange-senderadcheck: 1 x-ms-exchange-antispam-relay: 0 x-microsoft-antispam: BCL:0; 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Signed-off-by: Oleksii Moisieiev --- Changes v3 -> v4 - reworked protocol@19 format --- .../bindings/firmware/arm,scmi.yaml | 53 +++++++++++++++++++ 1 file changed, 53 insertions(+) diff --git a/Documentation/devicetree/bindings/firmware/arm,scmi.yaml b/Documentation/devicetree/bindings/firmware/arm,scmi.yaml index 5824c43e9893..5318fe72354e 100644 --- a/Documentation/devicetree/bindings/firmware/arm,scmi.yaml +++ b/Documentation/devicetree/bindings/firmware/arm,scmi.yaml @@ -233,6 +233,39 @@ properties: reg: const: 0x18 + protocol@19: + type: object + allOf: + - $ref: "#/$defs/protocol-node" + - $ref: "../pinctrl/pinctrl.yaml" + unevaluatedProperties: false + + properties: + reg: + const: 0x19 + + '#pinctrl-cells': + const: 0 + + patternProperties: + '-pins$': + type: object + allOf: + - $ref: "../pinctrl/pincfg-node.yaml#" + - $ref: "../pinctrl/pinmux-node.yaml#" + unevaluatedProperties: false + + description: + A pin multiplexing sub-node describe how to configure a + set of pins is some desired function. + A single sub-node may define several pin configurations. + This sub-node is using default pinctrl bindings to configure + pin multiplexing and using SCMI protocol to apply specified + configuration using SCMI protocol. + + required: + - reg + additionalProperties: false $defs: @@ -384,6 +417,26 @@ examples: scmi_powercap: protocol@18 { reg = <0x18>; }; + + scmi_pinctrl: protocol@19 { + reg = <0x19>; + #pinctrl-cells = <0>; + + i2c2-pins { + groups = "i2c2_a", "i2c2_b"; + function = "i2c2"; + }; + + mdio-pins { + groups = "avb_mdio"; + drive-strength = <24>; + }; + + keys_pins: keys-pins { + pins = "GP_5_17", "GP_5_20", "GP_5_22", "GP_2_1"; + bias-pull-up; + }; + }; }; };