[PATCH v9 1/2] dt-bindings: iio: health: add adi,max86150

[PATCH v9 1/2] dt-bindings: iio: health: add adi,max86150

[Md Shofiqul Islam]

Add Device Tree binding schema for the Analog Devices MAX86150
integrated ECG and PPG biosensor.

The device exposes two PPG channels (Red LED and IR LED) and one ECG
channel over I2C, with a 32-entry hardware FIFO and an active-low
interrupt.

Signed-off-by: Md Shofiqul Islam <shofiqtest@gmail.com>
---
 .../bindings/iio/health/adi,max86150.yaml     | 65 +++++++++++++++++++
 MAINTAINERS                                   |  6 ++
 2 files changed, 71 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/iio/health/adi,max86150.yaml

diff --git a/Documentation/devicetree/bindings/iio/health/adi,max86150.yaml b/Documentation/devicetree/bindings/iio/health/adi,max86150.yaml
new file mode 100644
index 0000000000000..b0ae7d2ecfcec
--- /dev/null
+++ b/Documentation/devicetree/bindings/iio/health/adi,max86150.yaml
@@ -0,0 +1,65 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/iio/health/adi,max86150.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Analog Devices MAX86150 ECG and PPG Biosensor
+
+maintainers:
+  - Md Shofiqul Islam <shofiqtest@gmail.com>
+
+description: |
+  The MAX86150 is an integrated biosensor that combines two
+  photoplethysmography (PPG) channels (Red LED and IR LED) and one
+  electrocardiogram (ECG) channel for biopotential recording. Samples
+  are buffered in a 32-entry hardware FIFO with a configurable
+  almost-full interrupt.
+
+  Datasheet:
+    https://www.analog.com/media/en/technical-documentation/data-sheets/MAX86150.pdf
+
+properties:
+  compatible:
+    const: adi,max86150
+
+  reg:
+    maxItems: 1
+
+  interrupts:
+    maxItems: 1
+    description:
+      Interrupt line, asserted when the FIFO almost-full threshold is
+      reached.
+
+  vdd-supply:
+    description: VDD power supply (1.8 V).
+
+  vled-supply:
+    description: VLED LED anode supply (3.3 V to 5 V).
+
+required:
+  - compatible
+  - reg
+  - vdd-supply
+  - vled-supply
+
+additionalProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/interrupt-controller/irq.h>
+
+    i2c {
+        #address-cells = <1>;
+        #size-cells = <0>;
+
+        heart-rate@5e {
+            compatible = "adi,max86150";
+            reg = <0x5e>;
+            interrupt-parent = <&gpio1>;
+            interrupts = <5 IRQ_TYPE_LEVEL_LOW>;
+            vdd-supply = <&vdd_1v8>;
+            vled-supply = <&vdd_3v3>;
+        };
+    };
diff --git a/MAINTAINERS b/MAINTAINERS
index 3115538ce8291..e9b9fd619bd86 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -15863,6 +15863,12 @@ S:	Supported
 F:	Documentation/devicetree/bindings/power/supply/maxim,max77976.yaml
 F:	drivers/power/supply/max77976_charger.c
 
+MAX86150 ECG AND PPG BIOSENSOR DRIVER
+M:	Md Shofiqul Islam <shofiqtest@gmail.com>
+L:	linux-iio@vger.kernel.org
+S:	Maintained
+F:	Documentation/devicetree/bindings/iio/health/adi,max86150.yaml
+
 MAXIM MUIC CHARGER DRIVERS FOR EXYNOS BASED BOARDS
 M:	Krzysztof Kozlowski <krzk@kernel.org>
 L:	linux-pm@vger.kernel.org
-- 
2.51.1

Re: [PATCH v9 1/2] dt-bindings: iio: health: add adi,max86150

[Krzysztof Kozlowski]

On 07/07/2026 13:27, Md Shofiqul Islam wrote:
> Add Device Tree binding schema for the Analog Devices MAX86150
> integrated ECG and PPG biosensor.
> 
> The device exposes two PPG channels (Red LED and IR LED) and one ECG
> channel over I2C, with a 32-entry hardware FIFO and an active-low
> interrupt.
> 
> Signed-off-by: Md Shofiqul Islam <shofiqtest@gmail.com>

Please slow down. Now two versions sent within one hour. Before also
posting multiple times per day.

One version per 24h..

Best regards,
Krzysztof

Re: [PATCH v9 1/2] dt-bindings: iio: health: add adi,max86150

[Krzysztof Kozlowski]

On Tue, Jul 07, 2026 at 02:27:13PM +0300, Md Shofiqul Islam wrote:
> Add Device Tree binding schema for the Analog Devices MAX86150
> integrated ECG and PPG biosensor.
> 
> The device exposes two PPG channels (Red LED and IR LED) and one ECG
> channel over I2C, with a 32-entry hardware FIFO and an active-low
> interrupt.
> 
> Signed-off-by: Md Shofiqul Islam <shofiqtest@gmail.com>
> ---
>  .../bindings/iio/health/adi,max86150.yaml     | 65 +++++++++++++++++++
>  MAINTAINERS                                   |  6 ++

I downloaded entire thread and... it is only patch #1. No user.
Please thread your patches correctly.

Best regards,
Krzysztof