1 /* 2 * SPI access driver for TI TPS65912x PMICs 3 * 4 * Copyright (C) 2015 Texas Instruments Incorporated - https://www.ti.com/ 5 * Andrew F. Davis <afd@ti.com> 6 * 7 * This program is free software; you can redistribute it and/or 8 * modify it under the terms of the GNU General Public License version 2 as 9 * published by the Free Software Foundation. 10 * 11 * This program is distributed "as is" WITHOUT ANY WARRANTY of any 12 * kind, whether expressed or implied; without even the implied warranty 13 * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 14 * GNU General Public License version 2 for more details. 15 * 16 * Based on the TPS65218 driver and the previous TPS65912 driver by 17 * Margarita Olaya Cabrera <magi@slimlogic.co.uk> 18 */ 19 20 #include <linux/module.h> 21 #include <linux/regmap.h> 22 #include <linux/spi/spi.h> 23 24 #include <linux/mfd/tps65912.h> 25 26 static const struct of_device_id tps65912_spi_of_match_table[] = { 27 { .compatible = "ti,tps65912", }, 28 { /* sentinel */ } 29 }; 30 MODULE_DEVICE_TABLE(of, tps65912_spi_of_match_table); 31 32 static int tps65912_spi_probe(struct spi_device *spi) 33 { 34 struct tps65912 *tps; 35 36 tps = devm_kzalloc(&spi->dev, sizeof(*tps), GFP_KERNEL); 37 if (!tps) 38 return -ENOMEM; 39 40 spi_set_drvdata(spi, tps); 41 tps->dev = &spi->dev; 42 tps->irq = spi->irq; 43 44 tps->regmap = devm_regmap_init_spi(spi, &tps65912_regmap_config); 45 if (IS_ERR(tps->regmap)) { 46 dev_err(tps->dev, "Failed to initialize register map\n"); 47 return PTR_ERR(tps->regmap); 48 } 49 50 return tps65912_device_init(tps); 51 } 52 53 static int tps65912_spi_remove(struct spi_device *spi) 54 { 55 struct tps65912 *tps = spi_get_drvdata(spi); 56 57 tps65912_device_exit(tps); 58 59 return 0; 60 } 61 62 static const struct spi_device_id tps65912_spi_id_table[] = { 63 { "tps65912", 0 }, 64 { /* sentinel */ } 65 }; 66 MODULE_DEVICE_TABLE(spi, tps65912_spi_id_table); 67 68 static struct spi_driver tps65912_spi_driver = { 69 .driver = { 70 .name = "tps65912", 71 .of_match_table = tps65912_spi_of_match_table, 72 }, 73 .probe = tps65912_spi_probe, 74 .remove = tps65912_spi_remove, 75 .id_table = tps65912_spi_id_table, 76 }; 77 module_spi_driver(tps65912_spi_driver); 78 79 MODULE_AUTHOR("Andrew F. Davis <afd@ti.com>"); 80 MODULE_DESCRIPTION("TPS65912x SPI Interface Driver"); 81 MODULE_LICENSE("GPL v2"); 82