staging:iio: Move DAC drivers out of staging

The IIO DAC drivers are in a reasonably good shape. They all make use of channel
spec and non of them provides non-documented sysfs attributes. Code style should
be OK as well, both checkpatch and coccicheck only report trivial issues.

So lets move the whole folder out of staging.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Acked-by: Jonathan Cameron <jic23@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

1 files changed, 79 insertions, 0 deletions

diff --git a/drivers/iio/dac/ad5624r.h b/drivers/iio/dac/ad5624r.h
new file mode 100644
index 000000000000..5dca3028cdfd
--- /dev/null
+++ b/drivers/iio/dac/ad5624r.h
@@ -0,0 +1,79 @@
+/*
+ * AD5624R SPI DAC driver
+ *
+ * Copyright 2010-2011 Analog Devices Inc.
+ *
+ * Licensed under the GPL-2.
+ */
+#ifndef SPI_AD5624R_H_
+#define SPI_AD5624R_H_
+
+#define AD5624R_DAC_CHANNELS                    4
+
+#define AD5624R_ADDR_DAC0                       0x0
+#define AD5624R_ADDR_DAC1                       0x1
+#define AD5624R_ADDR_DAC2                       0x2
+#define AD5624R_ADDR_DAC3                       0x3
+#define AD5624R_ADDR_ALL_DAC                    0x7
+
+#define AD5624R_CMD_WRITE_INPUT_N               0x0
+#define AD5624R_CMD_UPDATE_DAC_N                0x1
+#define AD5624R_CMD_WRITE_INPUT_N_UPDATE_ALL    0x2
+#define AD5624R_CMD_WRITE_INPUT_N_UPDATE_N      0x3
+#define AD5624R_CMD_POWERDOWN_DAC               0x4
+#define AD5624R_CMD_RESET                       0x5
+#define AD5624R_CMD_LDAC_SETUP                  0x6
+#define AD5624R_CMD_INTERNAL_REFER_SETUP        0x7
+
+#define AD5624R_LDAC_PWRDN_NONE                 0x0
+#define AD5624R_LDAC_PWRDN_1K                   0x1
+#define AD5624R_LDAC_PWRDN_100K                 0x2
+#define AD5624R_LDAC_PWRDN_3STATE               0x3
+
+/**
+ * struct ad5624r_chip_info - chip specific information
+ * @channels:           channel spec for the DAC
+ * @int_vref_mv:        AD5620/40/60: the internal reference voltage
+ */
+
+struct ad5624r_chip_info {
+        const struct iio_chan_spec      *channels;
+        u16                             int_vref_mv;
+};
+
+/**
+ * struct ad5446_state - driver instance specific data
+ * @indio_dev:          the industrial I/O device
+ * @us:                 spi_device
+ * @chip_info:          chip model specific constants, available modes etc
+ * @reg:                supply regulator
+ * @vref_mv:            actual reference voltage used
+ * @pwr_down_mask       power down mask
+ * @pwr_down_mode       current power down mode
+ */
+
+struct ad5624r_state {
+        struct spi_device               *us;
+        const struct ad5624r_chip_info  *chip_info;
+        struct regulator                *reg;
+        unsigned short                  vref_mv;
+        unsigned                        pwr_down_mask;
+        unsigned                        pwr_down_mode;
+};
+
+/**
+ * ad5624r_supported_device_ids:
+ * The AD5624/44/64 parts are available in different
+ * fixed internal reference voltage options.
+ */
+
+enum ad5624r_supported_device_ids {
+        ID_AD5624R3,
+        ID_AD5644R3,
+        ID_AD5664R3,
+        ID_AD5624R5,
+        ID_AD5644R5,
+        ID_AD5664R5,
+};
+
+#endif /* SPI_AD5624R_H_ */