diff --git a/drivers/iio/adc/qcom-spmi-adc5.c b/drivers/iio/adc/qcom-spmi-adc5.c
index ddbb635dca50..7e01d84f96fc 100644
--- a/drivers/iio/adc/qcom-spmi-adc5.c
+++ b/drivers/iio/adc/qcom-spmi-adc5.c
@@ -673,6 +673,8 @@ static const struct adc5_channels adc7_chans_pmic[ADC5_MAX_CHANNEL] = {
 					SCALE_HW_CALIB_DEFAULT)
 	[ADC7_VBAT_SNS]		= ADC5_CHAN_VOLT("vbat_sns", 3,
 					SCALE_HW_CALIB_DEFAULT)
+	[ADC7_AMUX_THM3]	= ADC5_CHAN_TEMP("smb_temp", 0,
+					SCALE_HW_CALIB_PM7_SMB_TEMP)
 	[ADC7_DIE_TEMP]		= ADC5_CHAN_TEMP("die_temp", 0,
 					SCALE_HW_CALIB_PMIC_THERM_PM7)
 	[ADC7_AMUX_THM1_100K_PU]	= ADC5_CHAN_TEMP("amux_thm1_pu2", 0,
diff --git a/drivers/iio/adc/qcom-vadc-common.c b/drivers/iio/adc/qcom-vadc-common.c
index 3fe3f48ef85a..2948aa107cde 100644
--- a/drivers/iio/adc/qcom-vadc-common.c
+++ b/drivers/iio/adc/qcom-vadc-common.c
@@ -536,6 +536,10 @@ static int qcom_vadc_scale_hw_smb_temp(
 				const struct vadc_prescale_ratio *prescale,
 				const struct adc5_data *data,
 				u16 adc_code, int *result_mdec);
+static int qcom_vadc_scale_hw_pm7_smb_temp(
+				const struct vadc_prescale_ratio *prescale,
+				const struct adc5_data *data,
+				u16 adc_code, int *result_mdec);
 static int qcom_vadc_scale_hw_smb1398_temp(
 				const struct vadc_prescale_ratio *prescale,
 				const struct adc5_data *data,
@@ -571,6 +575,7 @@ static struct qcom_adc5_scale_type scale_adc5_fn[] = {
 	[SCALE_HW_CALIB_PM5_CHG_TEMP] = {qcom_vadc_scale_hw_chg5_temp},
 	[SCALE_HW_CALIB_PM5_SMB_TEMP] = {qcom_vadc_scale_hw_smb_temp},
 	[SCALE_HW_CALIB_PM5_SMB1398_TEMP] = {qcom_vadc_scale_hw_smb1398_temp},
+	[SCALE_HW_CALIB_PM7_SMB_TEMP] = {qcom_vadc_scale_hw_pm7_smb_temp},
 };
 
 static int qcom_vadc_map_voltage_temp(const struct vadc_map_pt *pts,
@@ -892,6 +897,27 @@ static int qcom_vadc7_scale_hw_calib_die_temp(
 	return 0;
 }
 
+static int qcom_vadc_scale_hw_pm7_smb_temp(
+				const struct vadc_prescale_ratio *prescale,
+				const struct adc5_data *data,
+				u16 adc_code, int *result_mdec)
+{
+	s64 temp;
+	int result_uv;
+
+	result_uv = qcom_vadc_scale_code_voltage_factor(adc_code,
+				prescale, data, 1);
+
+	/* T(C) = 25 + (25*Vadc - 24.885) / 0.0894 */
+	temp = div_s64(((25000LL * result_uv) - (24885 * 1000000LL)) * 10000,
+			894 * 1000000) + 25000;
+	pr_debug("adc_code: %#x result_uv: %d temp: %lld\n", adc_code,
+		result_uv, temp);
+	*result_mdec = temp > 0 ? temp : 0;
+
+	return 0;
+}
+
 static int qcom_vadc_scale_hw_smb_temp(
 				const struct vadc_prescale_ratio *prescale,
 				const struct adc5_data *data,
diff --git a/drivers/iio/adc/qcom-vadc-common.h b/drivers/iio/adc/qcom-vadc-common.h
index bf565dc088e9..f142a03b2fe6 100644
--- a/drivers/iio/adc/qcom-vadc-common.h
+++ b/drivers/iio/adc/qcom-vadc-common.h
@@ -121,12 +121,8 @@ struct vadc_prescale_ratio {
  *	lookup table. The hardware applies offset/slope to adc code.
  * SCALE_HW_CALIB_XOTHERM: Returns XO thermistor voltage in millidegC using
  *	100k pullup. The hardware applies offset/slope to adc code.
- * SCALE_HW_CALIB_THERM_100K_PU_PM7: Returns temperature in millidegC using
- *	lookup table for PMIC7. The hardware applies offset/slope to adc code.
  * SCALE_HW_CALIB_PMIC_THERM: Returns result in milli degree's Centigrade.
  *	The hardware applies offset/slope to adc code.
- * SCALE_HW_CALIB_PMIC_THERM_PM7: Returns result in milli degree's Centigrade.
- *	The hardware applies offset/slope to adc code. This is for PMIC7.
  * SCALE_HW_CALIB_PM5_CHG_TEMP: Returns result in millidegrees for PMIC5
  *	charger temperature.
  * SCALE_HW_CALIB_PM5_SMB_TEMP: Returns result in millidegrees for PMIC5
@@ -142,6 +138,12 @@ struct vadc_prescale_ratio {
  *	code.
  * SCALE_HW_CALIB_PM5_SMB1398_TEMP: Returns result in millidegrees for PMIC5
  *	SMB1398 temperature.
+ * SCALE_HW_CALIB_THERM_100K_PU_PM7: Returns temperature in millidegC using
+ *	lookup table for PMIC7. The hardware applies offset/slope to adc code.
+ * SCALE_HW_CALIB_PMIC_THERM_PM7: Returns result in milli degree's Centigrade.
+ *	The hardware applies offset/slope to adc code. This is for PMIC7.
+ * SCALE_HW_CALIB_PM7_SMB_TEMP: Returns result in millidegrees for PMIC7
+ *	SMB139x temperature.
  */
 enum vadc_scale_fn_type {
 	SCALE_DEFAULT = 0,
@@ -162,6 +164,7 @@ enum vadc_scale_fn_type {
 	SCALE_HW_CALIB_PM5_SMB1398_TEMP,
 	SCALE_HW_CALIB_THERM_100K_PU_PM7,
 	SCALE_HW_CALIB_PMIC_THERM_PM7,
+	SCALE_HW_CALIB_PM7_SMB_TEMP,
 	SCALE_HW_CALIB_INVALID,
 };