Orange Pi5 kernel

^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  1) // SPDX-License-Identifier: GPL-2.0-only
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  2) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  3)  * STMicroelectronics hts221 spi driver
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  4)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  5)  * Copyright 2016 STMicroelectronics Inc.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  6)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  7)  * Lorenzo Bianconi <lorenzo.bianconi@st.com>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  8)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  9) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10) #include <linux/kernel.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11) #include <linux/module.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12) #include <linux/spi/spi.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13) #include <linux/slab.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14) #include <linux/regmap.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16) #include "hts221.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18) #define HTS221_SPI_READ			BIT(7)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19) #define HTS221_SPI_AUTO_INCREMENT	BIT(6)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21) static const struct regmap_config hts221_spi_regmap_config = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22) 	.reg_bits = 8,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23) 	.val_bits = 8,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24) 	.write_flag_mask = HTS221_SPI_AUTO_INCREMENT,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25) 	.read_flag_mask = HTS221_SPI_READ | HTS221_SPI_AUTO_INCREMENT,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28) static int hts221_spi_probe(struct spi_device *spi)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30) 	struct regmap *regmap;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32) 	regmap = devm_regmap_init_spi(spi, &hts221_spi_regmap_config);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33) 	if (IS_ERR(regmap)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34) 		dev_err(&spi->dev, "Failed to register spi regmap %ld\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35) 			PTR_ERR(regmap));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36) 		return PTR_ERR(regmap);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39) 	return hts221_probe(&spi->dev, spi->irq,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40) 			    spi->modalias, regmap);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 41) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 42) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 43) static const struct of_device_id hts221_spi_of_match[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 44) 	{ .compatible = "st,hts221", },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 45) 	{},
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 46) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 47) MODULE_DEVICE_TABLE(of, hts221_spi_of_match);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 48) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 49) static const struct spi_device_id hts221_spi_id_table[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 50) 	{ HTS221_DEV_NAME },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 51) 	{},
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 52) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 53) MODULE_DEVICE_TABLE(spi, hts221_spi_id_table);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 54) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 55) static struct spi_driver hts221_driver = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 56) 	.driver = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 57) 		.name = "hts221_spi",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 58) 		.pm = &hts221_pm_ops,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 59) 		.of_match_table = hts221_spi_of_match,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 60) 	},
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 61) 	.probe = hts221_spi_probe,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 62) 	.id_table = hts221_spi_id_table,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 63) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 64) module_spi_driver(hts221_driver);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 65) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 66) MODULE_AUTHOR("Lorenzo Bianconi <lorenzo.bianconi@st.com>");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 67) MODULE_DESCRIPTION("STMicroelectronics hts221 spi driver");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 68) MODULE_LICENSE("GPL v2");