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authorRicardo Ribalda Delgado <ricardo.ribalda@gmail.com>2016-01-16 16:24:07 +0300
committerJonathan Cameron <jic23@kernel.org>2016-01-24 17:46:21 +0300
commit131497acd88a4456d99247cee457baefd2817835 (patch)
tree5272e44155727b8d3bf1ecc7380cc44bfac1da1c /include/linux/platform_data/ad5761.h
parent7ca6574a7afb669b0b4b30dd63adeb310e97e250 (diff)
downloadlinux-131497acd88a4456d99247cee457baefd2817835.tar.xz
iio: add ad5761 DAC driver
ad5761 is a 1-channel DAC with configurable output range. The driver uses the regulator interface for its voltage ref. It shares its register layout with ad5761r, ad5721 and ad5721r. Differences: ad5761* are 16 bit, ad5721* are 12 bits. ad57*1r have an internal reference. Signed-off-by: Ricardo Ribalda Delgado <ricardo.ribalda@gmail.com> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
Diffstat (limited to 'include/linux/platform_data/ad5761.h')
-rw-r--r--include/linux/platform_data/ad5761.h44
1 files changed, 44 insertions, 0 deletions
diff --git a/include/linux/platform_data/ad5761.h b/include/linux/platform_data/ad5761.h
new file mode 100644
index 000000000000..7bd8ed7d978e
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+++ b/include/linux/platform_data/ad5761.h
@@ -0,0 +1,44 @@
+/*
+ * AD5721, AD5721R, AD5761, AD5761R, Voltage Output Digital to Analog Converter
+ *
+ * Copyright 2016 Qtechnology A/S
+ * 2016 Ricardo Ribalda <ricardo.ribalda@gmail.com>
+ *
+ * Licensed under the GPL-2.
+ */
+#ifndef __LINUX_PLATFORM_DATA_AD5761_H__
+#define __LINUX_PLATFORM_DATA_AD5761_H__
+
+/**
+ * enum ad5761_voltage_range - Voltage range the AD5761 is configured for.
+ * @AD5761_VOLTAGE_RANGE_M10V_10V: -10V to 10V
+ * @AD5761_VOLTAGE_RANGE_0V_10V: 0V to 10V
+ * @AD5761_VOLTAGE_RANGE_M5V_5V: -5V to 5V
+ * @AD5761_VOLTAGE_RANGE_0V_5V: 0V to 5V
+ * @AD5761_VOLTAGE_RANGE_M2V5_7V5: -2.5V to 7.5V
+ * @AD5761_VOLTAGE_RANGE_M3V_3V: -3V to 3V
+ * @AD5761_VOLTAGE_RANGE_0V_16V: 0V to 16V
+ * @AD5761_VOLTAGE_RANGE_0V_20V: 0V to 20V
+ */
+
+enum ad5761_voltage_range {
+ AD5761_VOLTAGE_RANGE_M10V_10V,
+ AD5761_VOLTAGE_RANGE_0V_10V,
+ AD5761_VOLTAGE_RANGE_M5V_5V,
+ AD5761_VOLTAGE_RANGE_0V_5V,
+ AD5761_VOLTAGE_RANGE_M2V5_7V5,
+ AD5761_VOLTAGE_RANGE_M3V_3V,
+ AD5761_VOLTAGE_RANGE_0V_16V,
+ AD5761_VOLTAGE_RANGE_0V_20V,
+};
+
+/**
+ * struct ad5761_platform_data - AD5761 DAC driver platform data
+ * @voltage_range: Voltage range the AD5761 is configured for
+ */
+
+struct ad5761_platform_data {
+ enum ad5761_voltage_range voltage_range;
+};
+
+#endif