dt-bindings: hwmon: pmbus: add lt3074

Add Analog Devices LT3074 Ultralow Noise, High PSRR Dropout Linear
Regulator.

Signed-off-by: Cedric Encarnacion <cedricjustine.encarnacion@analog.com>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/20250421-upstream-lt3074-v3-1-71636322f9fe@analog.com
Signed-off-by: Guenter Roeck <linux@roeck-us.net>

diff --git a/Documentation/devicetree/bindings/hwmon/pmbus/adi,lt3074.yaml b/Documentation/devicetree/bindings/hwmon/pmbus/adi,lt3074.yaml
new file mode 100644 (file)
index 0000000..bf028a8
--- /dev/null
+++ b/Documentation/devicetree/bindings/hwmon/pmbus/adi,lt3074.yaml
@@ -0,0 +1,50 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/hwmon/pmbus/adi,lt3074.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Analog Devices LT3074 voltage regulator
+
+maintainers:
+  - Cedric Encarnacion <cedricjustine.encarnacion@analog.com>
+
+description: |
+  The LT3074 is a low voltage, ultra-low noise and ultra-fast transient
+  response linear regulator. It allows telemetry for input/output voltage,
+  output current and temperature through the PMBus serial interface.
+
+  Datasheet:
+    https://www.analog.com/en/products/lt3074.html
+
+allOf:
+  - $ref: /schemas/regulator/regulator.yaml#
+
+properties:
+  compatible:
+    enum:
+      - adi,lt3074
+
+  reg:
+    maxItems: 1
+
+required:
+  - compatible
+  - reg
+
+unevaluatedProperties: false
+
+examples:
+  - |
+    i2c {
+        #address-cells = <1>;
+        #size-cells = <0>;
+
+        regulator@6d {
+            compatible = "adi,lt3074";
+            reg = <0x6d>;
+            regulator-name = "vout";
+            regulator-max-microvolt = <1250000>;
+            regulator-min-microvolt = <1150000>;
+        };
+    };

diff --git a/MAINTAINERS b/MAINTAINERS
index fa1e04e87d1d63c1b01b59744d7ade00fe5a1885..eaa786e04abd1fb7e0d43c32b0308c5cb72615b4 100644 (file)
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -13989,6 +13989,13 @@ L:     linux-scsi@vger.kernel.org
 S:     Maintained
 F:     drivers/scsi/sym53c8xx_2/
 
+LT3074 HARDWARE MONITOR DRIVER
+M:     Cedric Encarnacion <cedricjustine.encarnacion@analog.com>
+L:     linux-hwmon@vger.kernel.org
+S:     Supported
+W:     https://ez.analog.com/linux-software-drivers
+F:     Documentation/devicetree/bindings/hwmon/pmbus/adi,lt3074.yaml
+
 LTC1660 DAC DRIVER
 M:     Marcus Folkesson <marcus.folkesson@gmail.com>
 L:     linux-iio@vger.kernel.org