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diff --git a/include/linux/platform_data/ad7793.h b/include/linux/platform_data/ad7793.h
new file mode 100644
index 000000000000..7ea6751aae6d
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+++ b/include/linux/platform_data/ad7793.h
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+/*
+ * AD7792/AD7793 SPI ADC driver
+ *
+ * Copyright 2011 Analog Devices Inc.
+ *
+ * Licensed under the GPL-2.
+ */
+#ifndef __LINUX_PLATFORM_DATA_AD7793_H__
+#define __LINUX_PLATFORM_DATA_AD7793_H__
+
+/**
+ * enum ad7793_clock_source - AD7793 clock source selection
+ * @AD7793_CLK_SRC_INT: Internal 64 kHz clock, not available at the CLK pin.
+ * @AD7793_CLK_SRC_INT_CO: Internal 64 kHz clock, available at the CLK pin.
+ * @AD7793_CLK_SRC_EXT: Use external clock.
+ * @AD7793_CLK_SRC_EXT_DIV2: Use external clock divided by 2.
+ */
+enum ad7793_clock_source {
+        AD7793_CLK_SRC_INT,
+        AD7793_CLK_SRC_INT_CO,
+        AD7793_CLK_SRC_EXT,
+        AD7793_CLK_SRC_EXT_DIV2,
+};
+
+/**
+ * enum ad7793_bias_voltage - AD7793 bias voltage selection
+ * @AD7793_BIAS_VOLTAGE_DISABLED: Bias voltage generator disabled
+ * @AD7793_BIAS_VOLTAGE_AIN1: Bias voltage connected to AIN1(-).
+ * @AD7793_BIAS_VOLTAGE_AIN2: Bias voltage connected to AIN2(-).
+ * @AD7793_BIAS_VOLTAGE_AIN3: Bias voltage connected to AIN3(-).
+ *      Only valid for AD7795/AD7796.
+ */
+enum ad7793_bias_voltage {
+        AD7793_BIAS_VOLTAGE_DISABLED,
+        AD7793_BIAS_VOLTAGE_AIN1,
+        AD7793_BIAS_VOLTAGE_AIN2,
+        AD7793_BIAS_VOLTAGE_AIN3,
+};
+
+/**
+ * enum ad7793_refsel - AD7793 reference voltage selection
+ * @AD7793_REFSEL_REFIN1: External reference applied between REFIN1(+)
+ *      and REFIN1(-).
+ * @AD7793_REFSEL_REFIN2: External reference applied between REFIN2(+) and
+ *      and REFIN1(-). Only valid for AD7795/AD7796.
+ * @AD7793_REFSEL_INTERNAL: Internal 1.17 V reference.
+ */
+enum ad7793_refsel {
+        AD7793_REFSEL_REFIN1 = 0,
+        AD7793_REFSEL_REFIN2 = 1,
+        AD7793_REFSEL_INTERNAL = 2,
+};
+
+/**
+ * enum ad7793_current_source_direction - AD7793 excitation current direction
+ * @AD7793_IEXEC1_IOUT1_IEXEC2_IOUT2: Current source IEXC1 connected to pin
+ *      IOUT1, current source IEXC2 connected to pin IOUT2.
+ * @AD7793_IEXEC1_IOUT2_IEXEC2_IOUT1: Current source IEXC2 connected to pin
+ *      IOUT1, current source IEXC1 connected to pin IOUT2.
+ * @AD7793_IEXEC1_IEXEC2_IOUT1: Both current sources connected to pin IOUT1.
+ *      Only valid when the current sources are set to 10 uA or 210 uA.
+ * @AD7793_IEXEC1_IEXEC2_IOUT2: Both current sources connected to Pin IOUT2.
+ *      Only valid when the current ources are set to 10 uA or 210 uA.
+ */
+enum ad7793_current_source_direction {
+        AD7793_IEXEC1_IOUT1_IEXEC2_IOUT2 = 0,
+        AD7793_IEXEC1_IOUT2_IEXEC2_IOUT1 = 1,
+        AD7793_IEXEC1_IEXEC2_IOUT1 = 2,
+        AD7793_IEXEC1_IEXEC2_IOUT2 = 3,
+};
+
+/**
+ * enum ad7793_excitation_current - AD7793 excitation current selection
+ * @AD7793_IX_DISABLED: Excitation current Disabled.
+ * @AD7793_IX_10uA: Enable 10 micro-ampere excitation current.
+ * @AD7793_IX_210uA: Enable 210 micro-ampere excitation current.
+ * @AD7793_IX_1mA: Enable 1 milli-Ampere excitation current.
+ */
+enum ad7793_excitation_current {
+        AD7793_IX_DISABLED = 0,
+        AD7793_IX_10uA = 1,
+        AD7793_IX_210uA = 2,
+        AD7793_IX_1mA = 3,
+};
+
+/**
+ * struct ad7793_platform_data - AD7793 platform data
+ * @clock_src: Clock source selection
+ * @burnout_current: If set to true the 100nA burnout current is enabled.
+ * @boost_enable: Enable boost for the bias voltage generator.
+ * @buffered: If set to true configure the device for buffered input mode.
+ * @unipolar: If set to true sample in unipolar mode, if set to false sample in
+ *              bipolar mode.
+ * @refsel: Reference voltage selection
+ * @bias_voltage: Bias voltage selection
+ * @exitation_current: Excitation current selection
+ * @current_source_direction: Excitation current direction selection
+ */
+struct ad7793_platform_data {
+        enum ad7793_clock_source clock_src;
+        bool burnout_current;
+        bool boost_enable;
+        bool buffered;
+        bool unipolar;
+
+        enum ad7793_refsel refsel;
+        enum ad7793_bias_voltage bias_voltage;
+        enum ad7793_excitation_current exitation_current;
+        enum ad7793_current_source_direction current_source_direction;
+};
+
+#endif /* IIO_ADC_AD7793_H_ */