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Fri, 12 Apr 2024 00:13:25 +0000 From: "Peng Fan (OSS)" Date: Fri, 12 Apr 2024 08:21:20 +0800 Subject: [PATCH v9 2/4] dt-bindings: firmware: arm,scmi: support pinctrl protocol Message-Id: <20240412-pinctrl-scmi-v9-2-b817344d3a9a@nxp.com> References: <20240412-pinctrl-scmi-v9-0-b817344d3a9a@nxp.com> In-Reply-To: <20240412-pinctrl-scmi-v9-0-b817344d3a9a@nxp.com> To: Sudeep Holla , Cristian Marussi , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Linus Walleij , Dan Carpenter Cc: Dhruva Gole , Andy Shevchenko , linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, devicetree@vger.kernel.org, linux-gpio@vger.kernel.org, Peng Fan X-Mailer: b4 0.12.3 X-Developer-Signature: v=1; a=ed25519-sha256; t=1712881290; l=2404; i=peng.fan@nxp.com; s=20230812; h=from:subject:message-id; bh=DFipHsGSFA9e8Nki9cC2yHmdVxAiRFl+Y09BDYDmlDA=; b=ereRO0xZDMytxw4d03hXxnLmm7SSi0K/35MXrbSAOfk/dXUHsZG6ra4Q1ouaKehZw4AyPQvoU C/0WSH7L5msAfTmTMgDAvJMvkzX9hGNRi/iebgirBEoHUrcjeJZt/Wo X-Developer-Key: i=peng.fan@nxp.com; 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Reviewed-by: Rob Herring Reviewed-by: Linus Walleij Reviewed-by: Dhruva Gole Signed-off-by: Peng Fan --- .../devicetree/bindings/firmware/arm,scmi.yaml | 50 ++++++++++++++++++++++ 1 file changed, 50 insertions(+) diff --git a/Documentation/devicetree/bindings/firmware/arm,scmi.yaml b/Documentation/devicetree/bindings/firmware/arm,scmi.yaml index 4591523b51a0..e9d3f043c4ed 100644 --- a/Documentation/devicetree/bindings/firmware/arm,scmi.yaml +++ b/Documentation/devicetree/bindings/firmware/arm,scmi.yaml @@ -247,6 +247,37 @@ properties: reg: const: 0x18 + protocol@19: + type: object + allOf: + - $ref: '#/$defs/protocol-node' + - $ref: /schemas/pinctrl/pinctrl.yaml + + unevaluatedProperties: false + + properties: + reg: + const: 0x19 + + patternProperties: + '-pins$': + type: object + allOf: + - $ref: /schemas/pinctrl/pincfg-node.yaml# + - $ref: /schemas/pinctrl/pinmux-node.yaml# + unevaluatedProperties: false + + description: + A pin multiplexing sub-node describes how to configure a + set of pins in some desired function. + A single sub-node may define several pin configurations. + This sub-node is using the default pinctrl bindings to configure + pin multiplexing and using SCMI protocol to apply a specified + configuration. + + required: + - reg + additionalProperties: false $defs: @@ -401,6 +432,25 @@ examples: scmi_powercap: protocol@18 { reg = <0x18>; }; + + scmi_pinctrl: protocol@19 { + reg = <0x19>; + + i2c2-pins { + groups = "g_i2c2_a", "g_i2c2_b"; + function = "f_i2c2"; + }; + + mdio-pins { + groups = "g_avb_mdio"; + drive-strength = <24>; + }; + + keys_pins: keys-pins { + pins = "gpio_5_17", "gpio_5_20", "gpio_5_22", "gpio_2_1"; + bias-pull-up; + }; + }; }; };