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linux-7.2.3/Documentation/devicetree/bindings/iio/health/maxim,max30100.yaml

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+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/iio/health/maxim,max30100.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Maxim MAX30100 heart rate and pulse oximeter sensor
+
+maintainers:
+  - Matt Ranostay <matt.ranostay@konsulko.com>
+
+properties:
+  compatible:
+    const: maxim,max30100
+
+  reg:
+    maxItems: 1
+
+  interrupts:
+    maxItems: 1
+    description: Connected to ADC_RDY pin.
+
+  maxim,led-current-microamp:
+    minItems: 2
+    maxItems: 2
+    description: |
+      LED current whilst the engine is running. First indexed value is
+      the configuration for the RED LED, and second value is for the IR LED.
+
+  maxim,pulse-width-us:
+    description: |
+      LED pulse width in microseconds. Appropriate pulse width depends on
+      factors such as optical window absorption, LED-to-sensor distance,
+      and expected reflectivity of the skin or contact surface.
+    enum: [200, 400, 800, 1600]
+    default: 1600
+
+additionalProperties: false
+
+required:
+  - compatible
+  - reg
+  - interrupts
+
+examples:
+  - |
+    i2c {
+        #address-cells = <1>;
+        #size-cells = <0>;
+
+        heart-rate@57 {
+            compatible = "maxim,max30100";
+            reg = <0x57>;
+            maxim,led-current-microamp = <24000 50000>;
+            interrupt-parent = <&gpio1>;
+            interrupts = <16 2>;
+        };
+    };
+...

linux-7.2.3/Documentation/devicetree/bindings/iio/health/maxim,max30102.yaml

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+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/iio/health/maxim,max30102.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Maxim MAX30101/2 heart rate and pulse oximeter and MAX30105 particle-sensor
+
+maintainers:
+  - Matt Ranostay <matt.ranostay@konsulko.com>
+
+properties:
+  compatible:
+    oneOf:
+      - enum:
+          - maxim,max30102
+          - maxim,max30105
+      - items:
+          - const: maxim,max30101
+          - const: maxim,max30105
+
+  reg:
+    maxItems: 1
+
+  interrupts:
+    maxItems: 1
+    description: Connected to ADC_RDY pin.
+
+  maxim,red-led-current-microamp:
+    description: RED LED current. Each step is approximately 200 microamps.
+    minimum: 0
+    maximum: 50800
+
+  maxim,ir-led-current-microamp:
+    description: IR LED current. Each step is approximately 200 microamps.
+    minimum: 0
+    maximum: 50800
+
+  maxim,green-led-current-microamp:
+    description: Green LED current. Each step is approximately 200 microamps.
+    minimum: 0
+    maximum: 50800
+
+allOf:
+  - if:
+      properties:
+        compatible:
+          contains:
+            const: maxim,max30102
+    then:
+      properties:
+        maxim,green-led-current-microamp: false
+
+additionalProperties: false
+
+required:
+  - compatible
+  - reg
+  - interrupts
+
+examples:
+  - |
+    i2c {
+        #address-cells = <1>;
+        #size-cells = <0>;
+
+        heart-rate@57 {
+            compatible = "maxim,max30102";
+            reg = <0x57>;
+            maxim,red-led-current-microamp = <7000>;
+            maxim,ir-led-current-microamp = <7000>;
+            interrupt-parent = <&gpio1>;
+            interrupts = <16 2>;
+        };
+    };
+...

linux-7.2.3/Documentation/devicetree/bindings/iio/health/ti,afe4403.yaml

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+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/iio/health/ti,afe4403.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Texas Instruments AFE4403 Heart rate and Pulse Oximeter
+
+maintainers:
+  - Jonathan Cameron <jic23@kernel.org>
+
+properties:
+  compatible:
+    const: ti,afe4403
+
+  reg:
+    maxItems: 1
+
+  tx-supply:
+    description: Supply to transmitting LEDs.
+
+  interrupts:
+    maxItems: 1
+    description: Connected to ADC_RDY pin.
+
+  reset-gpios:
+    maxItems: 1
+
+required:
+  - compatible
+  - reg
+
+allOf:
+  - $ref: /schemas/spi/spi-peripheral-props.yaml#
+
+unevaluatedProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/gpio/gpio.h>
+    #include <dt-bindings/interrupt-controller/irq.h>
+    spi {
+        #address-cells = <1>;
+        #size-cells = <0>;
+
+        heart-mon@0 {
+            compatible = "ti,afe4403";
+            reg = <0>;
+            spi-max-frequency = <10000000>;
+            tx-supply = <&vbat>;
+            interrupt-parent = <&gpio1>;
+            interrupts = <28 IRQ_TYPE_EDGE_RISING>;
+            reset-gpios = <&gpio1 16 GPIO_ACTIVE_LOW>;
+        };
+    };
+...

linux-7.2.3/Documentation/devicetree/bindings/iio/health/ti,afe4404.yaml

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+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/iio/health/ti,afe4404.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Texas Instruments AFE4404 Heart rate and Pulse Oximeter
+
+maintainers:
+  - Jonathan Cameron <jic23@kernel.org>
+
+properties:
+  compatible:
+    const: ti,afe4404
+
+  reg:
+    maxItems: 1
+
+  tx-supply:
+    description: Supply to transmitting LEDs.
+
+  interrupts:
+    maxItems: 1
+    description: Connected to ADC_RDY pin.
+
+  reset-gpios:
+    maxItems: 1
+
+additionalProperties: false
+
+required:
+  - compatible
+  - reg
+
+examples:
+  - |
+    #include <dt-bindings/gpio/gpio.h>
+    #include <dt-bindings/interrupt-controller/irq.h>
+    i2c {
+        #address-cells = <1>;
+        #size-cells = <0>;
+
+        heart-mon@58 {
+            compatible = "ti,afe4404";
+            reg = <0x58>;
+            tx-supply = <&vbat>;
+            interrupt-parent = <&gpio1>;
+            interrupts = <28 IRQ_TYPE_EDGE_RISING>;
+            reset-gpios = <&gpio1 16 GPIO_ACTIVE_LOW>;
+        };
+    };
+...