diff --git a/drivers/hwmon/pmbus/max20830.c b/drivers/hwmon/pmbus/max20830.c
index e3470118fd36..d43ee6438b26 100644
--- a/drivers/hwmon/pmbus/max20830.c
+++ b/drivers/hwmon/pmbus/max20830.c
@@ -23,6 +23,8 @@ 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,
+	.have_pmbus_revision = true,
+	.pmbus_revision = PMBUS_REV_13,
 };
 
 static int max20830_probe(struct i2c_client *client)
diff --git a/drivers/hwmon/pmbus/pmbus.h b/drivers/hwmon/pmbus/pmbus.h
index 23e3eda58870..1af247de9075 100644
--- a/drivers/hwmon/pmbus/pmbus.h
+++ b/drivers/hwmon/pmbus/pmbus.h
@@ -420,10 +420,12 @@ enum pmbus_data_format { linear = 0, ieee754, direct, vid };
 enum vrm_version { vr11 = 0, vr12, vr13, imvp9, amd625mv, nvidia195mv };
 
 /* PMBus revision identifiers */
-#define PMBUS_REV_10 0x00	/* PMBus revision 1.0 */
-#define PMBUS_REV_11 0x11	/* PMBus revision 1.1 */
-#define PMBUS_REV_12 0x22	/* PMBus revision 1.2 */
-#define PMBUS_REV_13 0x33	/* PMBus revision 1.3 */
+#define PMBUS_REV_10	0x00	/* PMBus revision 1.0 */
+#define PMBUS_REV_11	0x11	/* PMBus revision 1.1 */
+#define PMBUS_REV_12	0x22	/* PMBus revision 1.2 */
+#define PMBUS_REV_13	0x33	/* PMBus revision 1.3 */
+#define PMBUS_REV_131	0x44	/* PMBus revision 1.3.1 */
+#define PMBUS_REV_14	0x55	/* PMBus revision 1.4 */
 
 /* Operation type flags for pmbus_update_ts */
 #define PMBUS_OP_WRITE		BIT(0)
@@ -488,6 +490,16 @@ struct pmbus_driver_info {
 	int access_delay;		/* in microseconds */
 	int write_delay;		/* in microseconds */
 	int page_change_delay;		/* in microseconds */
+
+	/*
+	 * Some chips do not support the PMBUS_REVISION command.
+	 * Drivers for such chips can report the supported PMBus revision here.
+	 *
+	 * Drivers must set have_pmbus_revision to true and provide the
+	 * supported PMBus version in pmbus_revision.
+	 */
+	bool have_pmbus_revision;	/* true if pmbus_revision is valid */
+	u8 pmbus_revision;		/* PMBus revision */
 };
 
 /* Regulator ops */
diff --git a/drivers/hwmon/pmbus/pmbus_core.c b/drivers/hwmon/pmbus/pmbus_core.c
index 20d04dd713cc..884d6e6148d5 100644
--- a/drivers/hwmon/pmbus/pmbus_core.c
+++ b/drivers/hwmon/pmbus/pmbus_core.c
@@ -96,7 +96,8 @@ struct pmbus_data {
 
 	u32 flags;		/* from platform data */
 
-	u8 revision;	/* The PMBus revision the device is compliant with */
+	bool have_pmbus_revision;
+	u8 revision;		/* The PMBus revision the device is compliant with */
 
 	int exponent[PMBUS_PAGES];
 				/* linear mode: exponent for output voltages */
@@ -2847,9 +2848,16 @@ static int pmbus_init_common(struct i2c_client *client, struct pmbus_data *data,
 	if (!(data->flags & PMBUS_NO_WRITE_PROTECT))
 		pmbus_init_wp(client, data);
 
-	ret = i2c_smbus_read_byte_data(client, PMBUS_REVISION);
-	if (ret >= 0)
-		data->revision = ret;
+	if (info->have_pmbus_revision) {
+		data->have_pmbus_revision = true;
+		data->revision = info->pmbus_revision;
+	} else {
+		ret = i2c_smbus_read_byte_data(client, PMBUS_REVISION);
+		if (ret >= 0) {
+			data->have_pmbus_revision = true;
+			data->revision = ret;
+		}
+	}
 
 	if (data->info->pages)
 		pmbus_clear_faults(client);
@@ -3539,6 +3547,17 @@ static int pmbus_debugfs_get(void *data, u64 *val)
 DEFINE_DEBUGFS_ATTRIBUTE(pmbus_debugfs_ops, pmbus_debugfs_get, NULL,
 			 "0x%02llx\n");
 
+static int pmbus_debugfs_get_revision(void *data, u64 *val)
+{
+	struct pmbus_data *pdata = data;
+
+	*val = pdata->revision;
+
+	return 0;
+}
+DEFINE_DEBUGFS_ATTRIBUTE(pmbus_debugfs_revision_ops, pmbus_debugfs_get_revision, NULL,
+			 "0x%02llx\n");
+
 static int pmbus_debugfs_get_status(void *data, u64 *val)
 {
 	struct pmbus_debugfs_entry *entry = data;
@@ -3694,14 +3713,9 @@ static void pmbus_init_debugfs(struct i2c_client *client,
 				    &entries[idx++],
 				    &pmbus_debugfs_ops);
 	}
-	if (pmbus_check_byte_register(client, 0, PMBUS_REVISION)) {
-		entries[idx].client = client;
-		entries[idx].page = 0;
-		entries[idx].reg = PMBUS_REVISION;
-		debugfs_create_file("pmbus_revision", 0444, debugfs,
-				    &entries[idx++],
-				    &pmbus_debugfs_ops);
-	}
+	if (data->have_pmbus_revision)
+		debugfs_create_file("pmbus_revision", 0444, debugfs, data,
+				    &pmbus_debugfs_revision_ops);
 
 	for (i = 0; i < ARRAY_SIZE(pmbus_debugfs_block_data); i++) {
 		const struct pmbus_debugfs_data *d = &pmbus_debugfs_block_data[i];