5 files changed, 107 insertions, 0 deletions
diff --git a/include/linux/iio/dac/ad5421.h b/include/linux/iio/dac/ad5421.h
new file mode 100644
index 000000000..d8ee9a7f8
--- /dev/null
+++ b/include/linux/iio/dac/ad5421.h
@@ -0,0 +1,29 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef __IIO_DAC_AD5421_H__
+#define __IIO_DAC_AD5421_H__
+
+/**
+ * enum ad5421_current_range - Current range the AD5421 is configured for.
+ * @AD5421_CURRENT_RANGE_4mA_20mA: 4 mA to 20 mA (RANGE1,0 pins = 00)
+ * @AD5421_CURRENT_RANGE_3mA8_21mA: 3.8 mA to 21 mA (RANGE1,0 pins = x1)
+ * @AD5421_CURRENT_RANGE_3mA2_24mA: 3.2 mA to 24 mA (RANGE1,0 pins = 10)
+ */
+
+enum ad5421_current_range {
+	AD5421_CURRENT_RANGE_4mA_20mA,
+	AD5421_CURRENT_RANGE_3mA8_21mA,
+	AD5421_CURRENT_RANGE_3mA2_24mA,
+};
+
+/**
+ * struct ad5421_platform_data - AD5421 DAC driver platform data
+ * @external_vref: whether an external reference voltage is used or not
+ * @current_range: Current range the AD5421 is configured for
+ */
+
+struct ad5421_platform_data {
+	bool external_vref;
+	enum ad5421_current_range current_range;
+};
+
+#endif
diff --git a/include/linux/iio/dac/ad5504.h b/include/linux/iio/dac/ad5504.h
new file mode 100644
index 000000000..9f23c9048
--- /dev/null
+++ b/include/linux/iio/dac/ad5504.h
@@ -0,0 +1,15 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * AD5504 SPI DAC driver
+ *
+ * Copyright 2011 Analog Devices Inc.
+ */
+
+#ifndef SPI_AD5504_H_
+#define SPI_AD5504_H_
+
+struct ad5504_platform_data {
+	u16				vref_mv;
+};
+
+#endif /* SPI_AD5504_H_ */
diff --git a/include/linux/iio/dac/ad5791.h b/include/linux/iio/dac/ad5791.h
new file mode 100644
index 000000000..02966553f
--- /dev/null
+++ b/include/linux/iio/dac/ad5791.h
@@ -0,0 +1,24 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * AD5791 SPI DAC driver
+ *
+ * Copyright 2011 Analog Devices Inc.
+ */
+
+#ifndef SPI_AD5791_H_
+#define SPI_AD5791_H_
+
+/**
+ * struct ad5791_platform_data - platform specific information
+ * @vref_pos_mv:	Vdd Positive Analog Supply Volatge (mV)
+ * @vref_neg_mv:	Vdd Negative Analog Supply Volatge (mV)
+ * @use_rbuf_gain2:	ext. amplifier connected in gain of two configuration
+ */
+
+struct ad5791_platform_data {
+	u16				vref_pos_mv;
+	u16				vref_neg_mv;
+	bool				use_rbuf_gain2;
+};
+
+#endif /* SPI_AD5791_H_ */
diff --git a/include/linux/iio/dac/max517.h b/include/linux/iio/dac/max517.h
new file mode 100644
index 000000000..4923645a1
--- /dev/null
+++ b/include/linux/iio/dac/max517.h
@@ -0,0 +1,14 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+/*
+ * MAX517 DAC driver
+ *
+ * Copyright 2011 Roland Stigge <stigge@antcom.de>
+ */
+#ifndef IIO_DAC_MAX517_H_
+#define IIO_DAC_MAX517_H_
+
+struct max517_platform_data {
+	u16				vref_mv[8];
+};
+
+#endif /* IIO_DAC_MAX517_H_ */
diff --git a/include/linux/iio/dac/mcp4725.h b/include/linux/iio/dac/mcp4725.h
new file mode 100644
index 000000000..1f7e53c50
--- /dev/null
+++ b/include/linux/iio/dac/mcp4725.h
@@ -0,0 +1,25 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+/*
+ * MCP4725 DAC driver
+ *
+ * Copyright (C) 2012 Peter Meerwald <pmeerw@pmeerw.net>
+ */
+
+#ifndef IIO_DAC_MCP4725_H_
+#define IIO_DAC_MCP4725_H_
+
+/**
+ * struct mcp4725_platform_data - MCP4725/6 DAC specific data.
+ * @use_vref: Whether an external reference voltage on Vref pin should be used.
+ *            Additional vref-supply must be specified when used.
+ * @vref_buffered: Controls buffering of the external reference voltage.
+ *
+ * Vref related settings are available only on MCP4756. See
+ * Documentation/devicetree/bindings/iio/dac/microchip,mcp4725.yaml for more information.
+ */
+struct mcp4725_platform_data {
+	bool use_vref;
+	bool vref_buffered;
+};
+
+#endif /* IIO_DAC_MCP4725_H_ */