1 // SPDX-License-Identifier: GPL-2.0-only
3  * SPI interface for the BMP280 driver
5  * Inspired by the older BMP085 driver drivers/misc/bmp085-spi.c
8 #include <linux/spi/spi.h>
18 	struct spi_device *spi = to_spi_device(dev);  in bmp280_regmap_spi_write()  local
23 	 * The SPI register address (= full register address without bit 7) and  in bmp280_regmap_spi_write()
28 	return spi_write_then_read(spi, buf, 2, NULL, 0);  in bmp280_regmap_spi_write()
35 	struct spi_device *spi = to_spi_device(dev);  in bmp280_regmap_spi_read()  local
37 	return spi_write_then_read(spi, reg, reg_size, val, val_size);  in bmp280_regmap_spi_read()
47 static int bmp280_spi_probe(struct spi_device *spi)  in bmp280_spi_probe()  argument
49 	const struct spi_device_id *id = spi_get_device_id(spi);  in bmp280_spi_probe()
54 	spi->bits_per_word = 8;  in bmp280_spi_probe()
55 	ret = spi_setup(spi);  in bmp280_spi_probe()
57 		dev_err(&spi->dev, "spi_setup failed!\n");  in bmp280_spi_probe()
61 	switch (id->driver_data) {  in bmp280_spi_probe()
73 		return -EINVAL;  in bmp280_spi_probe()
76 	regmap = devm_regmap_init(&spi->dev,  in bmp280_spi_probe()
78 				  &spi->dev,  in bmp280_spi_probe()
81 		dev_err(&spi->dev, "failed to allocate register map\n");  in bmp280_spi_probe()
85 	return bmp280_common_probe(&spi->dev,  in bmp280_spi_probe()
87 				   id->driver_data,  in bmp280_spi_probe()
88 				   id->name,  in bmp280_spi_probe()
89 				   spi->irq);  in bmp280_spi_probe()
93 	{ .compatible = "bosch,bmp085", },
94 	{ .compatible = "bosch,bmp180", },
95 	{ .compatible = "bosch,bmp181", },
96 	{ .compatible = "bosch,bmp280", },
97 	{ .compatible = "bosch,bme280", },
98 	{ .compatible = "bosch,bmp380", },
111 MODULE_DEVICE_TABLE(spi, bmp280_spi_id);
124 MODULE_DESCRIPTION("BMP280 SPI bus driver");