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diff --git a/include/linux/platform_data/ad7887.h b/include/linux/platform_data/ad7887.h
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+/*
+ * AD7887 SPI ADC driver
+ *
+ * Copyright 2010 Analog Devices Inc.
+ *
+ * Licensed under the GPL-2 or later.
+ */
+#ifndef IIO_ADC_AD7887_H_
+#define IIO_ADC_AD7887_H_
+
+/**
+ * struct ad7887_platform_data - AD7887 ADC driver platform data
+ * @en_dual: Whether to use dual channel mode. If set to true AIN1 becomes the
+ * second input channel, and Vref is internally connected to Vdd. If set to
+ * false the device is used in single channel mode and AIN1/Vref is used as
+ * VREF input.
+ * @use_onchip_ref: Whether to use the onchip reference. If set to true the
+ * internal 2.5V reference is used. If set to false a external reference is
+ * used.
+ */
+struct ad7887_platform_data {
+ bool en_dual;
+ bool use_onchip_ref;
+};
+
+#endif /* IIO_ADC_AD7887_H_ */