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[78.94.0.51]) by smtp.gmail.com with ESMTPSA id u11-20020adfdd4b000000b002302dc43d77sm15886098wrm.115.2022.11.16.12.58.28 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 16 Nov 2022 12:58:28 -0800 (PST) From: Naresh Solanki X-Google-Original-From: Naresh Solanki To: linux-kernel@vger.kernel.org, devicetree@vger.kernel.org, Lee Jones , Rob Herring , Krzysztof Kozlowski , Patrick Rudolph Cc: Marcello Sylvester Bauer , Naresh Solanki Subject: [PATCH v11 1/2] dt-bindings: mfd: Add MAX5970 and MAX5978 Date: Wed, 16 Nov 2022 21:58:21 +0100 Message-Id: <20221116205822.1128275-2-Naresh.Solanki@9elements.com> X-Mailer: git-send-email 2.37.3 In-Reply-To: <20221116205822.1128275-1-Naresh.Solanki@9elements.com> References: <20221116205822.1128275-1-Naresh.Solanki@9elements.com> MIME-Version: 1.0 X-Spam-Status: No, score=-2.1 required=5.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,RCVD_IN_DNSWL_NONE, SPF_HELO_NONE,SPF_PASS autolearn=unavailable autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org X-getmail-retrieved-from-mailbox: =?utf-8?q?INBOX?= X-GMAIL-THRID: =?utf-8?q?1749688239211698187?= X-GMAIL-MSGID: =?utf-8?q?1749688239211698187?= From: Marcello Sylvester Bauer The MAX597x is a hot swap controller with configurable fault protection. It also has 10bit ADC for current & voltage measurements. Signed-off-by: Marcello Sylvester Bauer Co-developed-by: Patrick Rudolph Signed-off-by: Patrick Rudolph Co-developed-by: Naresh Solanki Signed-off-by: Naresh Solanki Reviewed-by: Krzysztof Kozlowski --- .../bindings/mfd/maxim,max5970.yaml | 151 ++++++++++++++++++ 1 file changed, 151 insertions(+) create mode 100644 Documentation/devicetree/bindings/mfd/maxim,max5970.yaml diff --git a/Documentation/devicetree/bindings/mfd/maxim,max5970.yaml b/Documentation/devicetree/bindings/mfd/maxim,max5970.yaml new file mode 100644 index 000000000000..6ee269afdab2 --- /dev/null +++ b/Documentation/devicetree/bindings/mfd/maxim,max5970.yaml @@ -0,0 +1,151 @@ +# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/mfd/maxim,max5970.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Regulator for MAX5970 smart switch from Maxim Integrated. + +maintainers: + - Patrick Rudolph + +description: | + The smart switch provides no output regulation, but independent fault protection + and voltage and current sensing. + Programming is done through I2C bus. + + Datasheets: + https://datasheets.maximintegrated.com/en/ds/MAX5970.pdf + https://datasheets.maximintegrated.com/en/ds/MAX5978.pdf + +properties: + compatible: + enum: + - maxim,max5970 + - maxim,max5978 + + reg: + maxItems: 1 + + interrupts: + maxItems: 1 + + leds: + type: object + description: + Properties for four LEDS. + + properties: + "#address-cells": + const: 1 + + "#size-cells": + const: 0 + + patternProperties: + "^led@[0-3]$": + $ref: /schemas/leds/common.yaml# + type: object + + additionalProperties: false + + vss1-supply: + description: Supply of the first channel. + + vss2-supply: + description: Supply of the second channel. + + regulators: + type: object + description: + Properties for both hot swap control/switch. + + patternProperties: + "^sw[0-1]$": + $ref: /schemas/regulator/regulator.yaml# + type: object + properties: + shunt-resistor-micro-ohms: + description: | + The value of current sense resistor in microohms. + + required: + - shunt-resistor-micro-ohms + + unevaluatedProperties: false + + additionalProperties: false + +required: + - compatible + - reg + - regulators + - vss1-supply + +allOf: + - if: + properties: + compatible: + enum: + - maxim,max5970 + then: + required: + - vss2-supply + +additionalProperties: false + +examples: + - | + i2c { + #address-cells = <1>; + #size-cells = <0>; + regulator@3a { + compatible = "maxim,max5978"; + reg = <0x3a>; + vss1-supply = <&p3v3>; + + regulators { + sw0_ref_0: sw0 { + shunt-resistor-micro-ohms = <12000>; + }; + }; + + leds { + #address-cells = <1>; + #size-cells = <0>; + led@0 { + reg = <0>; + label = "led0"; + default-state = "on"; + }; + led@1 { + reg = <1>; + label = "led1"; + default-state = "on"; + }; + }; + }; + }; + + - | + i2c { + #address-cells = <1>; + #size-cells = <0>; + + regulator@3a { + compatible = "maxim,max5970"; + reg = <0x3a>; + vss1-supply = <&p3v3>; + vss2-supply = <&p5v>; + + regulators { + sw0_ref_1: sw0 { + shunt-resistor-micro-ohms = <12000>; + }; + sw1_ref_1: sw1 { + shunt-resistor-micro-ohms = <10000>; + }; + }; + }; + }; +...