diff --git a/drivers/platform/x86/mlx-platform.c b/drivers/platform/x86/mlx-platform.c
index e87fe34eadf5..3a13285d1aa8 100644
--- a/drivers/platform/x86/mlx-platform.c
+++ b/drivers/platform/x86/mlx-platform.c
@@ -94,6 +94,7 @@
 /* Hotplug devices adapter numbers */
 #define MLXPLAT_CPLD_NR_NONE			-1
 #define MLXPLAT_CPLD_PSU_DEFAULT_NR		10
+#define MLXPLAT_CPLD_PSU_MSNXXXX_NR		4
 #define MLXPLAT_CPLD_FAN1_DEFAULT_NR		11
 #define MLXPLAT_CPLD_FAN2_DEFAULT_NR		12
 #define MLXPLAT_CPLD_FAN3_DEFAULT_NR		13
@@ -335,6 +336,108 @@ struct mlxreg_core_hotplug_platform_data mlxplat_mlxcpld_msn21xx_data = {
 	.mask_low = MLXPLAT_CPLD_LOW_AGGR_MASK_LOW,
 };
 
+/* Platform hotplug msn274x system family data */
+static struct mlxreg_core_data mlxplat_mlxcpld_msn274x_psu_items_data[] = {
+	{
+		.label = "psu1",
+		.reg = MLXPLAT_CPLD_LPC_REG_PSU_OFFSET,
+		.mask = BIT(0),
+		.hpdev.brdinfo = &mlxplat_mlxcpld_psu[0],
+		.hpdev.nr = MLXPLAT_CPLD_PSU_MSNXXXX_NR,
+	},
+	{
+		.label = "psu2",
+		.reg = MLXPLAT_CPLD_LPC_REG_PSU_OFFSET,
+		.mask = BIT(1),
+		.hpdev.brdinfo = &mlxplat_mlxcpld_psu[1],
+		.hpdev.nr = MLXPLAT_CPLD_PSU_MSNXXXX_NR,
+	},
+};
+
+static struct mlxreg_core_data mlxplat_mlxcpld_default_ng_pwr_items_data[] = {
+	{
+		.label = "pwr1",
+		.reg = MLXPLAT_CPLD_LPC_REG_PWR_OFFSET,
+		.mask = BIT(0),
+		.hpdev.brdinfo = &mlxplat_mlxcpld_pwr[0],
+		.hpdev.nr = MLXPLAT_CPLD_PSU_MSNXXXX_NR,
+	},
+	{
+		.label = "pwr2",
+		.reg = MLXPLAT_CPLD_LPC_REG_PWR_OFFSET,
+		.mask = BIT(1),
+		.hpdev.brdinfo = &mlxplat_mlxcpld_pwr[1],
+		.hpdev.nr = MLXPLAT_CPLD_PSU_MSNXXXX_NR,
+	},
+};
+
+static struct mlxreg_core_data mlxplat_mlxcpld_msn274x_fan_items_data[] = {
+	{
+		.label = "fan1",
+		.reg = MLXPLAT_CPLD_LPC_REG_FAN_OFFSET,
+		.mask = BIT(0),
+		.hpdev.nr = MLXPLAT_CPLD_NR_NONE,
+	},
+	{
+		.label = "fan2",
+		.reg = MLXPLAT_CPLD_LPC_REG_FAN_OFFSET,
+		.mask = BIT(1),
+		.hpdev.nr = MLXPLAT_CPLD_NR_NONE,
+	},
+	{
+		.label = "fan3",
+		.reg = MLXPLAT_CPLD_LPC_REG_FAN_OFFSET,
+		.mask = BIT(2),
+		.hpdev.nr = MLXPLAT_CPLD_NR_NONE,
+	},
+	{
+		.label = "fan4",
+		.reg = MLXPLAT_CPLD_LPC_REG_FAN_OFFSET,
+		.mask = BIT(3),
+		.hpdev.nr = MLXPLAT_CPLD_NR_NONE,
+	},
+};
+
+static struct mlxreg_core_item mlxplat_mlxcpld_msn274x_items[] = {
+	{
+		.data = mlxplat_mlxcpld_msn274x_psu_items_data,
+		.aggr_mask = MLXPLAT_CPLD_AGGR_MASK_NG_DEF,
+		.reg = MLXPLAT_CPLD_LPC_REG_PSU_OFFSET,
+		.mask = MLXPLAT_CPLD_PSU_MASK,
+		.count = ARRAY_SIZE(mlxplat_mlxcpld_msn274x_psu_items_data),
+		.inversed = 1,
+		.health = false,
+	},
+	{
+		.data = mlxplat_mlxcpld_default_ng_pwr_items_data,
+		.aggr_mask = MLXPLAT_CPLD_AGGR_MASK_NG_DEF,
+		.reg = MLXPLAT_CPLD_LPC_REG_PWR_OFFSET,
+		.mask = MLXPLAT_CPLD_PWR_MASK,
+		.count = ARRAY_SIZE(mlxplat_mlxcpld_default_ng_pwr_items_data),
+		.inversed = 0,
+		.health = false,
+	},
+	{
+		.data = mlxplat_mlxcpld_msn274x_fan_items_data,
+		.aggr_mask = MLXPLAT_CPLD_AGGR_MASK_NG_DEF,
+		.reg = MLXPLAT_CPLD_LPC_REG_FAN_OFFSET,
+		.mask = MLXPLAT_CPLD_FAN_MASK,
+		.count = ARRAY_SIZE(mlxplat_mlxcpld_msn274x_fan_items_data),
+		.inversed = 1,
+		.health = false,
+	},
+};
+
+static
+struct mlxreg_core_hotplug_platform_data mlxplat_mlxcpld_msn274x_data = {
+	.items = mlxplat_mlxcpld_msn274x_items,
+	.counter = ARRAY_SIZE(mlxplat_mlxcpld_msn274x_items),
+	.cell = MLXPLAT_CPLD_LPC_REG_AGGR_OFFSET,
+	.mask = MLXPLAT_CPLD_AGGR_MASK_NG_DEF,
+	.cell_low = MLXPLAT_CPLD_LPC_REG_AGGRLO_OFFSET,
+	.mask_low = MLXPLAT_CPLD_LOW_AGGR_MASK_LOW,
+};
+
 static bool mlxplat_mlxcpld_writeable_reg(struct device *dev, unsigned int reg)
 {
 	switch (reg) {
@@ -464,7 +567,28 @@ static int __init mlxplat_dmi_msn21xx_matched(const struct dmi_system_id *dmi)
 	return 1;
 };
 
+static int __init mlxplat_dmi_msn274x_matched(const struct dmi_system_id *dmi)
+{
+	int i;
+
+	for (i = 0; i < ARRAY_SIZE(mlxplat_mux_data); i++) {
+		mlxplat_mux_data[i].values = mlxplat_msn21xx_channels;
+		mlxplat_mux_data[i].n_values =
+				ARRAY_SIZE(mlxplat_msn21xx_channels);
+	}
+	mlxplat_hotplug = &mlxplat_mlxcpld_msn274x_data;
+
+	return 1;
+};
+
 static const struct dmi_system_id mlxplat_dmi_table[] __initconst = {
+	{
+		.callback = mlxplat_dmi_msn274x_matched,
+		.matches = {
+			DMI_MATCH(DMI_BOARD_VENDOR, "Mellanox Technologies"),
+			DMI_MATCH(DMI_PRODUCT_NAME, "MSN274"),
+		},
+	},
 	{
 		.callback = mlxplat_dmi_default_matched,
 		.matches = {