dt-bindings: hwmon: pmbus: add ti tps25990 support

Add DT binding for the Texas Instruments TPS25990 eFuse

Reviewed-by: Conor Dooley <conor.dooley@microchip.com>
Signed-off-by: Jerome Brunet <jbrunet@baylibre.com>
Message-ID: <20241105-tps25990-v4-6-0e312ac70b62@baylibre.com>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>

1 files changed, 83 insertions, 0 deletions

diff --git a/Documentation/devicetree/bindings/hwmon/pmbus/ti,tps25990.yaml b/Documentation/devicetree/bindings/hwmon/pmbus/ti,tps25990.yaml
new file mode 100644
index 000000000000..f4115870e450
--- /dev/null
+++ b/Documentation/devicetree/bindings/hwmon/pmbus/ti,tps25990.yaml
@@ -0,0 +1,83 @@
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+%YAML 1.2
+---
+
+$id: http://devicetree.org/schemas/hwmon/pmbus/ti,tps25990.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Texas Instruments TPS25990 Stackable eFuse
+
+maintainers:
+  - Jerome Brunet <jbrunet@baylibre.com>
+
+description:
+  The TI TPS25990 is an integrated, high-current circuit
+  protection and power management device with PMBUS interface
+
+properties:
+  compatible:
+    const: ti,tps25990
+
+  reg:
+    maxItems: 1
+
+  ti,rimon-micro-ohms:
+    description:
+      micro Ohms value of the resistance installed between the Imon pin
+      and the ground reference.
+
+  interrupts:
+    description: PMBUS SMB Alert Interrupt.
+    maxItems: 1
+
+  regulators:
+    type: object
+    description:
+      list of regulators provided by this controller.
+
+    properties:
+      vout:
+        $ref: /schemas/regulator/regulator.yaml#
+        type: object
+        unevaluatedProperties: false
+
+      gpdac1:
+        $ref: /schemas/regulator/regulator.yaml#
+        type: object
+        unevaluatedProperties: false
+
+      gpdac2:
+        $ref: /schemas/regulator/regulator.yaml#
+        type: object
+        unevaluatedProperties: false
+    additionalProperties: false
+
+required:
+  - compatible
+  - reg
+  - ti,rimon-micro-ohms
+
+additionalProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/interrupt-controller/irq.h>
+    i2c {
+        #address-cells = <1>;
+        #size-cells = <0>;
+
+        hw-monitor@46 {
+            compatible = "ti,tps25990";
+            reg = <0x46>;
+
+            interrupt-parent = <&gpio>;
+            interrupts = <42 IRQ_TYPE_LEVEL_LOW>;
+            ti,rimon-micro-ohms = <1370000000>;
+
+            regulators {
+                cpu0_vout: vout {
+                    regulator-name = "main_cpu0";
+                };
+            };
+        };
+    };