Lines Matching +full:dac +full:- +full:mode +full:- +full:mask

1 // SPDX-License-Identifier: GPL-2.0-only
21  * The BD79703 uses 12-bit SPI commands. First four bits (high bits) define
22  * channel(s) which are operated on, and also the mode. The mode can be to set
23  * a DAC word only, or set DAC word and output. The data-sheet is not very
24  * specific on how a previously set DAC word can be 'taken in to use'. Thus
25  * this driver only uses the 'set DAC and output it' -mode.
27  * The BD79703 latches last 12-bits when the chip-select is toggled. Thus we
28  * can use 16-bit transfers which should be widely supported. To simplify this
30  * address. This allows us to separate channels/mode by address and treat the
31  * 8-bit register value as DAC word. The highest 4 bits of address will be
48 			    int *val2, long mask)  in bd79703_read_raw()  argument
52 	if (mask != IIO_CHAN_INFO_SCALE)  in bd79703_read_raw()
53 		return -EINVAL;  in bd79703_read_raw()
55 	*val = data->vfs / 1000;  in bd79703_read_raw()
63 			     int val2, long mask)  in bd79703_write_raw()  argument
68 		return -EINVAL;  in bd79703_write_raw()
70 	return regmap_write(data->regmap, chan->channel + 1, val);  in bd79703_write_raw()
99 	struct device *dev = &spi->dev;  in bd79703_probe()
106 		return -ENOMEM;  in bd79703_probe()
110 	data->regmap = devm_regmap_init_spi(spi, &bd79703_regmap_config);  in bd79703_probe()
111 	if (IS_ERR(data->regmap))  in bd79703_probe()
112 		return dev_err_probe(dev, PTR_ERR(data->regmap),  in bd79703_probe()
123 	data->vfs = ret;  in bd79703_probe()
124 	idev->channels = bd79703_channels;  in bd79703_probe()
125 	idev->num_channels = ARRAY_SIZE(bd79703_channels);  in bd79703_probe()
126 	idev->modes = INDIO_DIRECT_MODE;  in bd79703_probe()
127 	idev->info = &bd79703_info;  in bd79703_probe()
128 	idev->name = "bd79703";  in bd79703_probe()
131 	ret = regmap_write(data->regmap, BD79703_REG_OUT_ALL, 0);  in bd79703_probe()
161 MODULE_DESCRIPTION("ROHM BD79703 DAC driver");