drivers/hwmon/ads7871.c

1 // SPDX-License-Identifier: GPL-2.0-or-later
3  *  ads7871 - driver for TI ADS7871 A/D converter
43 #define MUX_M3_BM	(1 << 3) /*M3 selects single ended*/
59 #include <linux/hwmon-sysfs.h>
95 	struct spi_device *spi = pdata->spi;  in voltage_show()
100 	channel = attr->index;  in voltage_show()
103 	 * other than single ended with a gain of 1  in voltage_show()
105 	/*MUX_M3_BM forces single ended*/  in voltage_show()
129 		return -1;  in voltage_show()
158 	struct device *dev = &spi->dev;  in ads7871_probe()
165 	spi->mode = (SPI_MODE_0);  in ads7871_probe()
166 	spi->bits_per_word = 8;  in ads7871_probe()
182 		return -ENODEV;  in ads7871_probe()
186 		return -ENOMEM;  in ads7871_probe()
188 	pdata->spi = spi;  in ads7871_probe()
190 	hwmon_dev = devm_hwmon_device_register_with_groups(dev, spi->modalias,  in ads7871_probe()