drivers/mfd/tps6594-spi.c

1 // SPDX-License-Identifier: GPL-2.0
3  * SPI access driver for TI TPS65224/TPS6594/TPS6593/LP8764 PMICs
5  * Copyright (C) 2023 BayLibre Incorporated - https://www.baylibre.com/
37 	if (tps->use_crc)  in tps6594_spi_reg_read()
44 	if (tps->use_crc && buf[3] != crc8(tps6594_spi_crc_table, buf, 3, CRC8_INIT_VALUE))  in tps6594_spi_reg_read()
45 		return -EIO;  in tps6594_spi_reg_read()
63 	if (tps->use_crc)  in tps6594_spi_reg_write()
81 	{ .compatible = "ti,tps6594-q1", .data = (void *)TPS6594, },
82 	{ .compatible = "ti,tps6593-q1", .data = (void *)TPS6593, },
83 	{ .compatible = "ti,lp8764-q1",  .data = (void *)LP8764,  },
84 	{ .compatible = "ti,tps65224-q1", .data = (void *)TPS65224, },
91 	struct device *dev = &spi->dev;  in tps6594_spi_probe()
97 		return -ENOMEM;  in tps6594_spi_probe()
101 	tps->dev = dev;  in tps6594_spi_probe()
102 	tps->reg = spi_get_chipselect(spi, 0);  in tps6594_spi_probe()
103 	tps->irq = spi->irq;  in tps6594_spi_probe()
107 		return dev_err_probe(dev, -EINVAL, "Failed to find matching chip ID\n");  in tps6594_spi_probe()
108 	tps->chip_id = (unsigned long)match->data;  in tps6594_spi_probe()
110 	if (tps->chip_id == TPS65224)  in tps6594_spi_probe()
113 	tps->regmap = devm_regmap_init(dev, NULL, spi, &tps6594_spi_regmap_config);  in tps6594_spi_probe()
114 	if (IS_ERR(tps->regmap))  in tps6594_spi_probe()
115 		return dev_err_probe(dev, PTR_ERR(tps->regmap), "Failed to init regmap\n");  in tps6594_spi_probe()