diff --git a/drivers/iio/adc/sun4i-gpadc-iio.c b/drivers/iio/adc/sun4i-gpadc-iio.c
index bff06f2798e8..7b12666cdd9e 100644
--- a/drivers/iio/adc/sun4i-gpadc-iio.c
+++ b/drivers/iio/adc/sun4i-gpadc-iio.c
@@ -27,6 +27,7 @@
 #include <linux/interrupt.h>
 #include <linux/io.h>
 #include <linux/module.h>
+#include <linux/nvmem-consumer.h>
 #include <linux/of.h>
 #include <linux/of_device.h>
 #include <linux/platform_device.h>
@@ -81,6 +82,7 @@ struct gpadc_data {
 	bool		has_bus_rst;
 	bool		has_mod_clk;
 	int		sensor_count;
+	bool		supports_nvmem;
 };
 
 static const struct gpadc_data sun4i_gpadc_data = {
@@ -94,6 +96,7 @@ static const struct gpadc_data sun4i_gpadc_data = {
 	.sample_start = sun4i_gpadc_sample_start,
 	.sample_end = sun4i_gpadc_sample_end,
 	.sensor_count = 1,
+	.supports_nvmem = false,
 };
 
 static const struct gpadc_data sun5i_gpadc_data = {
@@ -107,6 +110,7 @@ static const struct gpadc_data sun5i_gpadc_data = {
 	.sample_start = sun4i_gpadc_sample_start,
 	.sample_end = sun4i_gpadc_sample_end,
 	.sensor_count = 1,
+	.supports_nvmem = false,
 };
 
 static const struct gpadc_data sun6i_gpadc_data = {
@@ -120,6 +124,7 @@ static const struct gpadc_data sun6i_gpadc_data = {
 	.sample_start = sun4i_gpadc_sample_start,
 	.sample_end = sun4i_gpadc_sample_end,
 	.sensor_count = 1,
+	.supports_nvmem = false,
 };
 
 static const struct gpadc_data sun8i_a33_gpadc_data = {
@@ -130,6 +135,7 @@ static const struct gpadc_data sun8i_a33_gpadc_data = {
 	.sample_start = sun4i_gpadc_sample_start,
 	.sample_end = sun4i_gpadc_sample_end,
 	.sensor_count = 1,
+	.supports_nvmem = false,
 };
 
 struct sun4i_gpadc_iio {
@@ -148,6 +154,8 @@ struct sun4i_gpadc_iio {
 	struct clk			*mod_clk;
 	struct reset_control		*reset;
 	int				sensor_id;
+	u32				calibration_data[2];
+	bool				has_calibration_data[2];
 	/* prevents concurrent reads of temperature and ADC */
 	struct mutex			mutex;
 	struct thermal_zone_device	*tzd;
@@ -459,6 +467,17 @@ static int sun4i_gpadc_runtime_suspend(struct device *dev)
 	return info->data->sample_end(info);
 }
 
+static void sunxi_calibrate(struct sun4i_gpadc_iio *info)
+{
+	if (info->has_calibration_data[0])
+		regmap_write(info->regmap, SUNXI_THS_CDATA_0_1,
+			info->calibration_data[0]);
+
+	if (info->has_calibration_data[1])
+		regmap_write(info->regmap, SUNXI_THS_CDATA_2_3,
+			info->calibration_data[1]);
+}
+
 static int sun4i_gpadc_sample_start(struct sun4i_gpadc_iio *info)
 {
 	/* clkin = 6MHz */
@@ -481,6 +500,7 @@ static int sun4i_gpadc_sample_start(struct sun4i_gpadc_iio *info)
 static int sunxi_ths_sample_start(struct sun4i_gpadc_iio *info)
 {
 	u32 value;
+	sunxi_calibrate(info);
 
 	if (info->data->ctrl0_map)
 		regmap_write(info->regmap, SUNXI_THS_CTRL0,
@@ -602,6 +622,9 @@ static int sun4i_gpadc_probe_dt(struct platform_device *pdev,
 	struct resource *mem;
 	void __iomem *base;
 	int ret;
+	struct nvmem_cell *cell;
+	ssize_t cell_size;
+	u64 *cell_data;
 
 	info->data = of_device_get_match_data(&pdev->dev);
 	if (!info->data)
@@ -616,6 +639,35 @@ static int sun4i_gpadc_probe_dt(struct platform_device *pdev,
 	if (IS_ERR(base))
 		return PTR_ERR(base);
 
+	info->has_calibration_data[0] = false;
+	info->has_calibration_data[1] = false;
+
+	if (!info->data->supports_nvmem)
+		goto no_nvmem;
+
+	cell = devm_nvmem_cell_get(&pdev->dev, "calibration");
+	if (IS_ERR(cell)) {
+		if (PTR_ERR(cell) == -EPROBE_DEFER)
+			return PTR_ERR(cell);
+	} else {
+		cell_data = (u64 *)nvmem_cell_read(cell, &cell_size);
+		devm_nvmem_cell_put(&pdev->dev, cell);
+		if (cell_size <= 4) {
+			info->has_calibration_data[0] = true;
+			info->calibration_data[0] = be32_to_cpu(cell_data[0] &
+					GENMASK(31, 0));
+		} else if (cell_size <= 8) {
+			info->has_calibration_data[0] = true;
+			info->calibration_data[0] = be32_to_cpu(cell_data[0] &
+					GENMASK(31, 0));
+			info->has_calibration_data[1] = true;
+			info->calibration_data[1] = be32_to_cpu(
+					(cell_data[0] >> 32) & GENMASK(31, 0));
+		}
+	}
+
+no_nvmem:
+
 	info->regmap = devm_regmap_init_mmio(&pdev->dev, base,
 					     &sun4i_gpadc_regmap_config);
 	if (IS_ERR(info->regmap)) {
diff --git a/include/linux/mfd/sun4i-gpadc.h b/include/linux/mfd/sun4i-gpadc.h
index 40b4dd9d2405..c251002431bd 100644
--- a/include/linux/mfd/sun4i-gpadc.h
+++ b/include/linux/mfd/sun4i-gpadc.h
@@ -90,6 +90,8 @@
 #define SUNXI_THS_CTRL0					0x00
 #define SUNXI_THS_CTRL2					0x40
 #define SUNXI_THS_FILTER				0x70
+#define SUNXI_THS_CDATA_0_1				0x74
+#define SUNXI_THS_CDATA_2_3				0x78
 #define SUNXI_THS_TDATA0				0x80
 #define SUNXI_THS_TDATA1				0x84
 #define SUNXI_THS_TDATA2				0x88
