[PATCH v3 0/4] Add support for MAX20830C and MAX20840C step-down DC-DC switching regulator

[PATCH v3 0/4] Add support for MAX20830C and MAX20840C step-down DC-DC switching regulator

[Alexis Czezar Torreno]

This series adds a few features before adding support to MAX20830C and
MAX20840C.

Patches 1 and 2 adds new resistor feedback properties that is needed to
properly scale VOUT

Patches 3 and 4 adds support for devices MAX20830C and MAX20840C.

MAX20830C and MAX20840 are step-down DC-DC switching regulator with PMBus
interface. MAX20830C is a different packaging for MAX20830, and MAX20840C
supports 40A regulation compared to MAX20830 that is only 30A.

Signed-off-by: Alexis Czezar Torreno <alexisczezar.torreno@analog.com>
---
Changes in v3:
- Dropped patch that add EN-GPIO property in DTS
    - discussed to be skippable until an actual use-case arise
- Patch 1/4: 
    - Carried over the completed examples from previously dropped patch
    - Kept the review tag as the carried info from the dropped patched
      was also reviewed.
- Patch 2/4: 
    - added clamping to read_vout during scaling
    - improved comments regarding future regulator support 
- Link to v2: https://lore.kernel.org/r/20260706-dev-max20830c-v2-0-37761e89bb5f@analog.com

Changes in v2:
- Patch 1/5: completing example
- Dropped patch adding GPIO enable in driver (no use case)
- Patch 3/5: added notes on READ_VOUT and related VOUT commands
- Patch 4/5: removed comment on fallback
- Patch 5/5: simplified device ID check handling
- Link to v1: https://lore.kernel.org/r/20260630-dev-max20830c-v1-0-a02786bde470@analog.com

---
Alexis Czezar Torreno (4):
      dt-bindings: hwmon: (pmbus/max20830): add VOUT feedback resistor properties and complete examples
      hwmon: (pmbus/max20830): add VOUT feedback resistor scaling support
      dt-bindings: hwmon: (pmbus/max20830): add max20830c and max20840c support
      hwmon: (pmbus/max20830): add support for max20830c and max20840c

 .../bindings/hwmon/pmbus/adi,max20830.yaml         | 28 ++++++-
 Documentation/hwmon/max20830.rst                   | 27 +++++--
 drivers/hwmon/pmbus/max20830.c                     | 86 ++++++++++++++++++----
 3 files changed, 121 insertions(+), 20 deletions(-)
---
base-commit: 1a42625604046790ea8ec61c2a749bbf76b28943
change-id: 20260630-dev-max20830c-9d38d8b0a765

Best regards,
-- 
Alexis Czezar Torreno <alexisczezar.torreno@analog.com>

[PATCH v3 1/4] dt-bindings: hwmon: (pmbus/max20830): add VOUT feedback resistor properties and complete examples

[Alexis Czezar Torreno]

Add adi,vout-rfb1-ohms and adi,vout-rfb2-ohms properties to support
external voltage divider configuration for VOUT sensing. When the
desired output voltage is higher than VREF, a resistor divider (RFB1
and RFB2) is required to reach the intended value.

The properties use a dependency constraint to ensure both resistors
are specified together, or neither. This prevents misconfiguration
where only one resistor value is provided.

This patch also added missing entries in the examples.

Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@oss.qualcomm.com>
Signed-off-by: Alexis Czezar Torreno <alexisczezar.torreno@analog.com>
---
 .../bindings/hwmon/pmbus/adi,max20830.yaml           | 20 ++++++++++++++++++++
 1 file changed, 20 insertions(+)

diff --git a/Documentation/devicetree/bindings/hwmon/pmbus/adi,max20830.yaml b/Documentation/devicetree/bindings/hwmon/pmbus/adi,max20830.yaml
index 1625dd59417f1b3ca689a9c86ca266da913d1217..214adf1a3b9e9efdeca7db3bd7679c70656e9a7e 100644
--- a/Documentation/devicetree/bindings/hwmon/pmbus/adi,max20830.yaml
+++ b/Documentation/devicetree/bindings/hwmon/pmbus/adi,max20830.yaml
@@ -44,11 +44,26 @@ properties:
       GPIO connected to the power-good status output pin.
     maxItems: 1
 
+  adi,vout-rfb1-ohms:
+    description:
+      Top feedback resistor (RFB1) value in ohms for VOUT sensing divider.
+      When the desired output voltage is higher than VREF, a resistor divider
+      is required. VOUT = VREF × (1 + RFB1/RFB2)
+
+  adi,vout-rfb2-ohms:
+    description:
+      Bottom feedback resistor (RFB2) value in ohms for VOUT sensing divider.
+      Datasheet recommends that RFB2 does not exceed 2.5kΩ.
+
 required:
   - compatible
   - reg
   - vddh-supply
 
+dependencies:
+  adi,vout-rfb1-ohms: ['adi,vout-rfb2-ohms']
+  adi,vout-rfb2-ohms: ['adi,vout-rfb1-ohms']
+
 unevaluatedProperties: false
 
 examples:
@@ -61,6 +76,11 @@ examples:
             compatible = "adi,max20830";
             reg = <0x30>;
             vddh-supply = <&vddh>;
+            avdd-supply = <&avdd>;
+            ldoin-supply = <&ldoin>;
+            pwr-good-gpios = <&gpio 2 GPIO_ACTIVE_HIGH>;
+            adi,vout-rfb1-ohms = <10000>;
+            adi,vout-rfb2-ohms = <2000>;
         };
     };
 ...

-- 
2.34.1

[PATCH v3 2/4] hwmon: (pmbus/max20830): add VOUT feedback resistor scaling support

[Alexis Czezar Torreno]

Implement support for external voltage divider scaling using the
adi,vout-rfb1-ohms and adi,vout-rfb2-ohms device tree properties.

When the desired output voltage exceeds VREF, a resistor divider
(RFB1 and RFB2) is used to scale down the feedback voltage. The
driver reads these resistor values from device tree and applies
the scaling formula: VOUT_actual = VOUT_measured × (1 + RFB1/RFB2)

The properties are optional. If not specified, the driver assumes
no voltage divider is present and reports the raw VOUT reading.

Signed-off-by: Alexis Czezar Torreno <alexisczezar.torreno@analog.com>
---
 drivers/hwmon/pmbus/max20830.c | 59 +++++++++++++++++++++++++++++++++++++++++-
 1 file changed, 58 insertions(+), 1 deletion(-)

diff --git a/drivers/hwmon/pmbus/max20830.c b/drivers/hwmon/pmbus/max20830.c
index cb2c23672166d641852199ca07eb716924f4f286..7a5e67bd33c0a8b84511d138ac5f5f48334a0a45 100644
--- a/drivers/hwmon/pmbus/max20830.c
+++ b/drivers/hwmon/pmbus/max20830.c
@@ -7,6 +7,7 @@
 
 #include <linux/errno.h>
 #include <linux/i2c.h>
+#include <linux/math64.h>
 #include <linux/mod_devicetable.h>
 #include <linux/module.h>
 #include <linux/string.h>
@@ -14,6 +15,50 @@
 
 #define MAX20830_IC_DEVICE_ID_LENGTH	9
 
+struct max20830_data {
+	struct pmbus_driver_info info;
+	u32 vout_rfb1;
+	u32 vout_rfb2;
+};
+
+/*
+ * MAX20830 only supports READ_VOUT for VOUT monitoring.
+ *
+ * MAX20830 uses an external resistor divider for voltage sensing:
+ * - VOUT_COMMAND and VOUT_MAX set the reference voltage at the feedback pin
+ * - READ_VOUT reports the feedback voltage, which needs to be scaled for actual
+ *   output voltage
+ *
+ * Scaling formula: vout_actual = vout_fb × (1 + RFB1 / RFB2)
+ *
+ * If regulator support is added in the future, some adjustments are needed to
+ * ensure correct feedback voltages are set.
+ */
+static int max20830_read_word_data(struct i2c_client *client, int page,
+				   int phase, int reg)
+{
+	const struct pmbus_driver_info *info = pmbus_get_driver_info(client);
+	const struct max20830_data *data = container_of(info, struct max20830_data, info);
+	int ret;
+
+	switch (reg) {
+	case PMBUS_READ_VOUT:
+		ret = pmbus_read_word_data(client, page, phase, reg);
+		if (ret < 0)
+			return ret;
+
+		/* Apply voltage divider scaling if resistors are non-zero */
+		if (data->vout_rfb1 && data->vout_rfb2) {
+			ret = DIV_ROUND_CLOSEST_ULL((u64)ret * (data->vout_rfb1 +
+						    data->vout_rfb2), data->vout_rfb2);
+			ret = clamp_val(ret, 0, 0xFFFF);
+		}
+		return ret;
+	default:
+		return -ENODATA;
+	}
+}
+
 static struct pmbus_driver_info max20830_info = {
 	.pages = 1,
 	.format[PSC_VOLTAGE_IN] = linear,
@@ -24,13 +69,25 @@ static struct pmbus_driver_info max20830_info = {
 		PMBUS_HAVE_TEMP |
 		PMBUS_HAVE_STATUS_VOUT | PMBUS_HAVE_STATUS_IOUT |
 		PMBUS_HAVE_STATUS_INPUT | PMBUS_HAVE_STATUS_TEMP,
+	.read_word_data = max20830_read_word_data,
 };
 
 static int max20830_probe(struct i2c_client *client)
 {
 	u8 buf[I2C_SMBUS_BLOCK_MAX + 1] = {};
+	struct max20830_data *data;
 	int ret;
 
+	data = devm_kzalloc(&client->dev, sizeof(*data), GFP_KERNEL);
+	if (!data)
+		return -ENOMEM;
+
+	data->info = max20830_info;
+
+	/* Read optional voltage divider resistor values */
+	device_property_read_u32(&client->dev, "adi,vout-rfb1-ohms", &data->vout_rfb1);
+	device_property_read_u32(&client->dev, "adi,vout-rfb2-ohms", &data->vout_rfb2);
+
 	if (!i2c_check_functionality(client->adapter, I2C_FUNC_SMBUS_READ_BLOCK_DATA) &&
 	    !i2c_check_functionality(client->adapter, I2C_FUNC_SMBUS_READ_I2C_BLOCK))
 		return -ENODEV;
@@ -78,7 +135,7 @@ static int max20830_probe(struct i2c_client *client)
 		return dev_err_probe(&client->dev, -ENODEV,
 				     "Unsupported device: '%s'\n", buf);
 
-	return pmbus_do_probe(client, &max20830_info);
+	return pmbus_do_probe(client, &data->info);
 }
 
 static const struct i2c_device_id max20830_id[] = {

-- 
2.34.1

[PATCH v3 3/4] dt-bindings: hwmon: (pmbus/max20830): add max20830c and max20840c support

[Alexis Czezar Torreno]

Add compatible strings for variants of MAX20830 which are MAX20830C
and MAX20840C. These devices have the same register functionality with
MAX20830 but with a longer IC_DEVICE_ID.

Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@oss.qualcomm.com>
Signed-off-by: Alexis Czezar Torreno <alexisczezar.torreno@analog.com>
---
 Documentation/devicetree/bindings/hwmon/pmbus/adi,max20830.yaml | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/Documentation/devicetree/bindings/hwmon/pmbus/adi,max20830.yaml b/Documentation/devicetree/bindings/hwmon/pmbus/adi,max20830.yaml
index 214adf1a3b9e9efdeca7db3bd7679c70656e9a7e..b7d3b6152b58273a4c35581bbd66ec293fb2e925 100644
--- a/Documentation/devicetree/bindings/hwmon/pmbus/adi,max20830.yaml
+++ b/Documentation/devicetree/bindings/hwmon/pmbus/adi,max20830.yaml
@@ -22,7 +22,13 @@ allOf:
 
 properties:
   compatible:
-    const: adi,max20830
+    oneOf:
+      - const: adi,max20830
+      - items:
+          - enum:
+              - adi,max20830c
+              - adi,max20840c
+          - const: adi,max20830
 
   reg:
     maxItems: 1

-- 
2.34.1

[PATCH v3 4/4] hwmon: (pmbus/max20830): add support for max20830c and max20840c

[Alexis Czezar Torreno]

Add support for MAX20830C and MAX20840 step-down DC-DC switching
regulator with PMBus interface. MAX20830C is a different packaging
for MAX20830, and MAX20840C supports 40A regulation compared to
MAX20830 that is only 30A.

Signed-off-by: Alexis Czezar Torreno <alexisczezar.torreno@analog.com>
---
 Documentation/hwmon/max20830.rst | 27 ++++++++++++++++++++++-----
 drivers/hwmon/pmbus/max20830.c   | 27 ++++++++++++++-------------
 2 files changed, 36 insertions(+), 18 deletions(-)

diff --git a/Documentation/hwmon/max20830.rst b/Documentation/hwmon/max20830.rst
index 936e409dcc5c0898dde27d782308d4a7e1357e73..b850f3b6e40d1f1d0cec944be40af02265aced59 100644
--- a/Documentation/hwmon/max20830.rst
+++ b/Documentation/hwmon/max20830.rst
@@ -13,6 +13,22 @@ Supported chips:
 
     Datasheet: https://www.analog.com/media/en/technical-documentation/data-sheets/max20830.pdf
 
+  * Analog Devices MAX20830C
+
+    Prefix: 'max20830c'
+
+    Addresses scanned: -
+
+    Datasheet:
+
+  * Analog Devices MAX20840C
+
+    Prefix: 'max20840c'
+
+    Addresses scanned: -
+
+    Datasheet:
+
 Author:
 
   - Alexis Czezar Torreno <alexisczezar.torreno@analog.com>
@@ -21,12 +37,13 @@ Author:
 Description
 -----------
 
-This driver supports hardware monitoring for Analog Devices MAX20830
-Step-Down Switching Regulator with PMBus Interface.
+This driver supports hardware monitoring for Analog Devices MAX20830, MAX20830C
+and MAX20840C. These are Step-Down Switching Regulator with PMBus Interface.
 
-The MAX20830 is a 2.7V to 16V, 30A fully integrated step-down DC-DC switching
-regulator. Through the PMBus interface, the device can monitor input/output
-voltages, output current and temperature.
+MAX20830, and MAX20830C are 2.7V to 16V, 30A fully integrated step-down DC-DC
+switching regulators. MAX20840C is similar but can reach 40A. Through the PMBus
+interface, these devices can monitor input/output voltages, output current and
+temperature.
 
 The driver is a client driver to the core PMBus driver. Please see
 Documentation/hwmon/pmbus.rst for details on PMBus client drivers.
diff --git a/drivers/hwmon/pmbus/max20830.c b/drivers/hwmon/pmbus/max20830.c
index 7a5e67bd33c0a8b84511d138ac5f5f48334a0a45..73fe59685cf157cc27c1011ad9cc045486bbeab0 100644
--- a/drivers/hwmon/pmbus/max20830.c
+++ b/drivers/hwmon/pmbus/max20830.c
@@ -98,13 +98,12 @@ static int max20830_probe(struct i2c_client *client)
 	 * which do not support SMBus block reads.
 	 */
 	if (i2c_check_functionality(client->adapter, I2C_FUNC_SMBUS_READ_BLOCK_DATA)) {
-		/* Reads 9 Data bytes from MAX20830 */
 		ret = i2c_smbus_read_block_data(client, PMBUS_IC_DEVICE_ID, buf);
 		if (ret < 0)
 			return dev_err_probe(&client->dev, ret,
 					     "Failed to read IC_DEVICE_ID\n");
 	} else {
-		/* Reads 1 length byte + 9 Data bytes from MAX20830 */
+		/* Reads 1 length byte + data bytes */
 		ret = i2c_smbus_read_i2c_block_data(client, PMBUS_IC_DEVICE_ID,
 						    MAX20830_IC_DEVICE_ID_LENGTH + 1,
 						    buf);
@@ -120,26 +119,28 @@ static int max20830_probe(struct i2c_client *client)
 		ret = ret - 1;
 	}
 
-	/*
-	 * MAX20830 IC_DEVICE_ID sends string data "MAX20830\0".
-	 * Return value should at least be 9 bytes of data.
-	 */
+	/* Verify we read the expected number of bytes */
 	if (ret < MAX20830_IC_DEVICE_ID_LENGTH)
 		return dev_err_probe(&client->dev, -ENODEV,
-				     "IC_DEVICE_ID too short: expected at least 9 bytes, got %d\n",
-				     ret);
+				     "IC_DEVICE_ID too short: expected %d bytes, got %d\n",
+				     MAX20830_IC_DEVICE_ID_LENGTH, ret);
+
+	/* Null-terminate the string */
+	buf[ret] = '\0';
 
-	/* 9 bytes of data, buf[0]-buf[7] = "MAX20830", buf[8] = '\0' */
-	buf[MAX20830_IC_DEVICE_ID_LENGTH - 1] = '\0';
-	if (strncmp(buf, "MAX20830", MAX20830_IC_DEVICE_ID_LENGTH - 1))
+	/* Verify the device ID matches what we expect */
+	if ((strcmp(buf, "MAX20830") && strcmp(buf, "MAX20830C") &&
+	    strcmp(buf, "MAX20840C")))
 		return dev_err_probe(&client->dev, -ENODEV,
-				     "Unsupported device: '%s'\n", buf);
+				     "Unsupported device: '%*pE'\n", ret, buf);
 
 	return pmbus_do_probe(client, &data->info);
 }
 
 static const struct i2c_device_id max20830_id[] = {
-	{"max20830"},
+	{ "max20830" },
+	{ "max20830c" },
+	{ "max20840c" },
 	{ }
 };
 MODULE_DEVICE_TABLE(i2c, max20830_id);

-- 
2.34.1

RE: [PATCH v3 1/4] dt-bindings: hwmon: (pmbus/max20830): add VOUT feedback resistor properties and complete examples

[Torreno, Alexis Czezar]

> -----Original Message-----
> From: Alexis Czezar Torreno <alexisczezar.torreno@analog.com>
> Sent: Monday, July 20, 2026 11:15 AM
> To: Guenter Roeck <linux@roeck-us.net>; Rob Herring <robh@kernel.org>;
> Krzysztof Kozlowski <krzk+dt@kernel.org>; Conor Dooley
> <conor+dt@kernel.org>; Jonathan Corbet <corbet@lwn.net>; Shuah Khan
> <skhan@linuxfoundation.org>
> Cc: linux-hwmon@vger.kernel.org; devicetree@vger.kernel.org; linux-
> kernel@vger.kernel.org; linux-doc@vger.kernel.org; Torreno, Alexis Czezar
> <AlexisCzezar.Torreno@analog.com>; Krzysztof Kozlowski
> <krzysztof.kozlowski@oss.qualcomm.com>
> Subject: [PATCH v3 1/4] dt-bindings: hwmon: (pmbus/max20830): add VOUT
> feedback resistor properties and complete examples
> 
> Add adi,vout-rfb1-ohms and adi,vout-rfb2-ohms properties to support external
> voltage divider configuration for VOUT sensing. When the desired output
> voltage is higher than VREF, a resistor divider (RFB1 and RFB2) is required to
> reach the intended value.
> 
> The properties use a dependency constraint to ensure both resistors are
> specified together, or neither. This prevents misconfiguration where only one
> resistor value is provided.
> 
> This patch also added missing entries in the examples.
> 
> Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@oss.qualcomm.com>
> Signed-off-by: Alexis Czezar Torreno <alexisczezar.torreno@analog.com>
> ---
>  .../bindings/hwmon/pmbus/adi,max20830.yaml           | 20
> ++++++++++++++++++++
>  1 file changed, 20 insertions(+)
> 
> diff --git
> a/Documentation/devicetree/bindings/hwmon/pmbus/adi,max20830.yaml
> b/Documentation/devicetree/bindings/hwmon/pmbus/adi,max20830.yaml
> index
> 1625dd59417f1b3ca689a9c86ca266da913d1217..214adf1a3b9e9efdeca7db3bd
> 7679c70656e9a7e 100644
> --- a/Documentation/devicetree/bindings/hwmon/pmbus/adi,max20830.yaml
> +++ b/Documentation/devicetree/bindings/hwmon/pmbus/adi,max20830.yaml
> @@ -44,11 +44,26 @@ properties:
>        GPIO connected to the power-good status output pin.
>      maxItems: 1
> 
> +  adi,vout-rfb1-ohms:
> +    description:
> +      Top feedback resistor (RFB1) value in ohms for VOUT sensing divider.
> +      When the desired output voltage is higher than VREF, a resistor divider
> +      is required. VOUT = VREF × (1 + RFB1/RFB2)
> +
> +  adi,vout-rfb2-ohms:
> +    description:
> +      Bottom feedback resistor (RFB2) value in ohms for VOUT sensing divider.
> +      Datasheet recommends that RFB2 does not exceed 2.5kΩ.
> +
>  required:
>    - compatible
>    - reg
>    - vddh-supply
> 
> +dependencies:
> +  adi,vout-rfb1-ohms: ['adi,vout-rfb2-ohms']
> +  adi,vout-rfb2-ohms: ['adi,vout-rfb1-ohms']
> +
>  unevaluatedProperties: false
> 
>  examples:
> @@ -61,6 +76,11 @@ examples:
>              compatible = "adi,max20830";
>              reg = <0x30>;
>              vddh-supply = <&vddh>;
> +            avdd-supply = <&avdd>;
> +            ldoin-supply = <&ldoin>;
> +            pwr-good-gpios = <&gpio 2 GPIO_ACTIVE_HIGH>;
> +            adi,vout-rfb1-ohms = <10000>;
> +            adi,vout-rfb2-ohms = <2000>;
>          };
>      };

Disregard please, I carried over a few info from a dropped patch to combine
with this patch and missed the include for gpio.

Apologies on carrying the review tag, should've removed it even if it was a
small edit.

Regards,
Alexis


>  ...
> 
> --
> 2.34.1

Re: [PATCH v3 1/4] dt-bindings: hwmon: (pmbus/max20830): add VOUT feedback resistor properties and complete examples

[Rob Herring (Arm)]

On Mon, 20 Jul 2026 11:14:42 +0800, Alexis Czezar Torreno wrote:
> Add adi,vout-rfb1-ohms and adi,vout-rfb2-ohms properties to support
> external voltage divider configuration for VOUT sensing. When the
> desired output voltage is higher than VREF, a resistor divider (RFB1
> and RFB2) is required to reach the intended value.
> 
> The properties use a dependency constraint to ensure both resistors
> are specified together, or neither. This prevents misconfiguration
> where only one resistor value is provided.
> 
> This patch also added missing entries in the examples.
> 
> Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@oss.qualcomm.com>
> Signed-off-by: Alexis Czezar Torreno <alexisczezar.torreno@analog.com>
> ---
>  .../bindings/hwmon/pmbus/adi,max20830.yaml           | 20 ++++++++++++++++++++
>  1 file changed, 20 insertions(+)
> 

My bot found errors running 'make dt_binding_check' on your patch:

yamllint warnings/errors:

dtschema/dtc warnings/errors:
Lexical error: Documentation/devicetree/bindings/hwmon/pmbus/adi,max20830.example.dts:28.43-59 Unexpected 'GPIO_ACTIVE_HIGH'
FATAL ERROR: Syntax error parsing input tree
make[2]: *** [scripts/Makefile.dtbs:140: Documentation/devicetree/bindings/hwmon/pmbus/adi,max20830.example.dtb] Error 1
make[2]: *** Waiting for unfinished jobs....
make[1]: *** [/builds/robherring/dt-review-ci/linux/Makefile:1669: dt_binding_check] Error 2
make: *** [Makefile:248: __sub-make] Error 2

doc reference errors (make refcheckdocs):

See https://patchwork.kernel.org/project/devicetree/patch/20260720-dev-max20830c-v3-1-9d06d27d6da3@analog.com

The base for the series is generally the latest rc1. A different dependency
should be noted in *this* patch.

If you already ran 'make dt_binding_check' and didn't see the above
error(s), then make sure 'yamllint' is installed and dt-schema is up to
date:

pip3 install dtschema --upgrade

Please check and re-submit after running the above command yourself. Note
that DT_SCHEMA_FILES can be set to your schema file to speed up checking
your schema. However, it must be unset to test all examples with your schema.

Re: [PATCH v3 3/4] dt-bindings: hwmon: (pmbus/max20830): add max20830c and max20840c support

[Rob Herring (Arm)]

On Mon, 20 Jul 2026 11:14:44 +0800, Alexis Czezar Torreno wrote:
> Add compatible strings for variants of MAX20830 which are MAX20830C
> and MAX20840C. These devices have the same register functionality with
> MAX20830 but with a longer IC_DEVICE_ID.
> 
> Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@oss.qualcomm.com>
> Signed-off-by: Alexis Czezar Torreno <alexisczezar.torreno@analog.com>
> ---
>  Documentation/devicetree/bindings/hwmon/pmbus/adi,max20830.yaml | 8 +++++++-
>  1 file changed, 7 insertions(+), 1 deletion(-)
> 

My bot found errors running 'make dt_binding_check' on your patch:

yamllint warnings/errors:

dtschema/dtc warnings/errors:


doc reference errors (make refcheckdocs):

See https://patchwork.kernel.org/project/devicetree/patch/20260720-dev-max20830c-v3-3-9d06d27d6da3@analog.com

The base for the series is generally the latest rc1. A different dependency
should be noted in *this* patch.

If you already ran 'make dt_binding_check' and didn't see the above
error(s), then make sure 'yamllint' is installed and dt-schema is up to
date:

pip3 install dtschema --upgrade

Please check and re-submit after running the above command yourself. Note
that DT_SCHEMA_FILES can be set to your schema file to speed up checking
your schema. However, it must be unset to test all examples with your schema.