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10#include <linux/kernel.h>
11#include <linux/module.h>
12#include <linux/spi/spi.h>
13#include <linux/slab.h>
14#include <linux/regmap.h>
15
16#include "hts221.h"
17
18#define HTS221_SPI_READ BIT(7)
19#define HTS221_SPI_AUTO_INCREMENT BIT(6)
20
21static const struct regmap_config hts221_spi_regmap_config = {
22 .reg_bits = 8,
23 .val_bits = 8,
24 .write_flag_mask = HTS221_SPI_AUTO_INCREMENT,
25 .read_flag_mask = HTS221_SPI_READ | HTS221_SPI_AUTO_INCREMENT,
26};
27
28static int hts221_spi_probe(struct spi_device *spi)
29{
30 struct regmap *regmap;
31
32 regmap = devm_regmap_init_spi(spi, &hts221_spi_regmap_config);
33 if (IS_ERR(regmap)) {
34 dev_err(&spi->dev, "Failed to register spi regmap %ld\n",
35 PTR_ERR(regmap));
36 return PTR_ERR(regmap);
37 }
38
39 return hts221_probe(&spi->dev, spi->irq,
40 spi->modalias, regmap);
41}
42
43static const struct of_device_id hts221_spi_of_match[] = {
44 { .compatible = "st,hts221", },
45 {},
46};
47MODULE_DEVICE_TABLE(of, hts221_spi_of_match);
48
49static const struct spi_device_id hts221_spi_id_table[] = {
50 { HTS221_DEV_NAME },
51 {},
52};
53MODULE_DEVICE_TABLE(spi, hts221_spi_id_table);
54
55static struct spi_driver hts221_driver = {
56 .driver = {
57 .name = "hts221_spi",
58 .pm = &hts221_pm_ops,
59 .of_match_table = hts221_spi_of_match,
60 },
61 .probe = hts221_spi_probe,
62 .id_table = hts221_spi_id_table,
63};
64module_spi_driver(hts221_driver);
65
66MODULE_AUTHOR("Lorenzo Bianconi <lorenzo.bianconi@st.com>");
67MODULE_DESCRIPTION("STMicroelectronics hts221 spi driver");
68MODULE_LICENSE("GPL v2");
69
