diff --git a/drivers/hwmon/mc13783-adc.c b/drivers/hwmon/mc13783-adc.c
index ef65ab56b0948a23da0d797c01c321fee45fba4f..6acd04427723fcadac1088e0197f6f8d2700ec84 100644
--- a/drivers/hwmon/mc13783-adc.c
+++ b/drivers/hwmon/mc13783-adc.c
@@ -53,7 +53,7 @@ static int mc13783_adc_read(struct device *dev,
 
 	ret = mc13xxx_adc_do_conversion(priv->mc13xxx,
 			MC13XXX_ADC_MODE_MULT_CHAN,
-			channel, sample);
+			channel, 0, 0, sample);
 	if (ret)
 		return ret;
 
diff --git a/drivers/input/touchscreen/mc13783_ts.c b/drivers/input/touchscreen/mc13783_ts.c
index ede02743eac1997b426a7970f96429a486ea4059..48dc5b0d26f1a0b59039532318967ec5c500b862 100644
--- a/drivers/input/touchscreen/mc13783_ts.c
+++ b/drivers/input/touchscreen/mc13783_ts.c
@@ -39,6 +39,7 @@ struct mc13783_ts_priv {
 	struct delayed_work work;
 	struct workqueue_struct *workq;
 	unsigned int sample[4];
+	struct mc13xxx_ts_platform_data *touch;
 };
 
 static irqreturn_t mc13783_ts_handler(int irq, void *data)
@@ -125,7 +126,9 @@ static void mc13783_ts_work(struct work_struct *work)
 	unsigned int channel = 12;
 
 	if (mc13xxx_adc_do_conversion(priv->mc13xxx,
-				mode, channel, priv->sample) == 0)
+				mode, channel,
+				priv->touch->ato, priv->touch->atox,
+				priv->sample) == 0)
 		mc13783_ts_report_sample(priv);
 }
 
@@ -179,6 +182,12 @@ static int __init mc13783_ts_probe(struct platform_device *pdev)
 	INIT_DELAYED_WORK(&priv->work, mc13783_ts_work);
 	priv->mc13xxx = dev_get_drvdata(pdev->dev.parent);
 	priv->idev = idev;
+	priv->touch = dev_get_platdata(&pdev->dev);
+	if (!priv->touch) {
+		dev_err(&pdev->dev, "missing platform data\n");
+		ret = -ENODEV;
+		goto err_free_mem;
+	}
 
 	/*
 	 * We need separate workqueue because mc13783_adc_do_conversion
diff --git a/drivers/mfd/mc13xxx-core.c b/drivers/mfd/mc13xxx-core.c
index 7122386b4e3cf1830dbb3cab2f552efefeb43834..9fd4f63c45cc18b2e60dc41085425ff3d35f04b8 100644
--- a/drivers/mfd/mc13xxx-core.c
+++ b/drivers/mfd/mc13xxx-core.c
@@ -560,6 +560,8 @@ EXPORT_SYMBOL(mc13xxx_get_flags);
 
 #define MC13XXX_ADC1_CHAN0_SHIFT	5
 #define MC13XXX_ADC1_CHAN1_SHIFT	8
+#define MC13783_ADC1_ATO_SHIFT		11
+#define MC13783_ADC1_ATOX		(1 << 19)
 
 struct mc13xxx_adcdone_data {
 	struct mc13xxx *mc13xxx;
@@ -580,7 +582,8 @@ static irqreturn_t mc13xxx_handler_adcdone(int irq, void *data)
 #define MC13XXX_ADC_WORKING (1 << 0)
 
 int mc13xxx_adc_do_conversion(struct mc13xxx *mc13xxx, unsigned int mode,
-		unsigned int channel, unsigned int *sample)
+		unsigned int channel, u8 ato, bool atox,
+		unsigned int *sample)
 {
 	u32 adc0, adc1, old_adc0;
 	int i, ret;
@@ -631,6 +634,9 @@ int mc13xxx_adc_do_conversion(struct mc13xxx *mc13xxx, unsigned int mode,
 		return -EINVAL;
 	}
 
+	adc1 |= ato << MC13783_ADC1_ATO_SHIFT;
+	if (atox)
+		adc1 |= MC13783_ADC1_ATOX;
 	dev_dbg(&mc13xxx->spidev->dev, "%s: request irq\n", __func__);
 	mc13xxx_irq_request(mc13xxx, MC13XXX_IRQ_ADCDONE,
 			mc13xxx_handler_adcdone, __func__, &adcdone_data);
@@ -813,7 +819,8 @@ static int mc13xxx_probe(struct spi_device *spi)
 		mc13xxx_add_subdevice(mc13xxx, "%s-rtc");
 
 	if (mc13xxx->flags & MC13XXX_USE_TOUCHSCREEN)
-		mc13xxx_add_subdevice(mc13xxx, "%s-ts");
+		mc13xxx_add_subdevice_pdata(mc13xxx, "%s-ts",
+				&pdata->touch, sizeof(pdata->touch));
 
 	if (pdata) {
 		mc13xxx_add_subdevice_pdata(mc13xxx, "%s-regulator",
diff --git a/include/linux/mfd/mc13xxx.h b/include/linux/mfd/mc13xxx.h
index b86ee45c8b03fc1b57f233543bbd0f0859167532..10e038bac8dd106f742dc283aa69e7f5cbc495e7 100644
--- a/include/linux/mfd/mc13xxx.h
+++ b/include/linux/mfd/mc13xxx.h
@@ -38,7 +38,8 @@ int mc13xxx_irq_ack(struct mc13xxx *mc13xxx, int irq);
 int mc13xxx_get_flags(struct mc13xxx *mc13xxx);
 
 int mc13xxx_adc_do_conversion(struct mc13xxx *mc13xxx,
-		unsigned int mode, unsigned int channel, unsigned int *sample);
+		unsigned int mode, unsigned int channel,
+		u8 ato, bool atox, unsigned int *sample);
 
 #define MC13XXX_IRQ_ADCDONE	0
 #define MC13XXX_IRQ_ADCBISDONE	1
@@ -157,6 +158,18 @@ struct mc13xxx_buttons_platform_data {
 	unsigned short b3on_key;
 };
 
+struct mc13xxx_ts_platform_data {
+	/* Delay between Touchscreen polarization and ADC Conversion.
+	 * Given in clock ticks of a 32 kHz clock which gives a granularity of
+	 * about 30.5ms */
+	u8 ato;
+
+#define MC13783_TS_ATO_FIRST false
+#define MC13783_TS_ATO_EACH  true
+	/* Use the ATO delay only for the first conversion or for each one */
+	bool atox;
+};
+
 struct mc13xxx_platform_data {
 #define MC13XXX_USE_TOUCHSCREEN (1 << 0)
 #define MC13XXX_USE_CODEC	(1 << 1)
@@ -167,6 +180,7 @@ struct mc13xxx_platform_data {
 	struct mc13xxx_regulator_platform_data regulators;
 	struct mc13xxx_leds_platform_data *leds;
 	struct mc13xxx_buttons_platform_data *buttons;
+	struct mc13xxx_ts_platform_data touch;
 };
 
 #define MC13XXX_ADC_MODE_TS		1