1 /* 2 * SPI access driver for TI TPS65912x PMICs 3 * 4 * Copyright (C) 2015 Texas Instruments Incorporated - http://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 31 static int tps65912_spi_probe(struct spi_device *spi) 32 { 33 struct tps65912 *tps; 34 35 tps = devm_kzalloc(&spi->dev, sizeof(*tps), GFP_KERNEL); 36 if (!tps) 37 return -ENOMEM; 38 39 spi_set_drvdata(spi, tps); 40 tps->dev = &spi->dev; 41 tps->irq = spi->irq; 42 43 tps->regmap = devm_regmap_init_spi(spi, &tps65912_regmap_config); 44 if (IS_ERR(tps->regmap)) { 45 dev_err(tps->dev, "Failed to initialize register map\n"); 46 return PTR_ERR(tps->regmap); 47 } 48 49 return tps65912_device_init(tps); 50 } 51 52 static int tps65912_spi_remove(struct spi_device *client) 53 { 54 struct tps65912 *tps = spi_get_drvdata(client); 55 56 return tps65912_device_exit(tps); 57 } 58 59 static const struct spi_device_id tps65912_spi_id_table[] = { 60 { "tps65912", 0 }, 61 { /* sentinel */ } 62 }; 63 MODULE_DEVICE_TABLE(spi, tps65912_spi_id_table); 64 65 static struct spi_driver tps65912_spi_driver = { 66 .driver = { 67 .name = "tps65912", 68 .of_match_table = tps65912_spi_of_match_table, 69 }, 70 .probe = tps65912_spi_probe, 71 .remove = tps65912_spi_remove, 72 .id_table = tps65912_spi_id_table, 73 }; 74 module_spi_driver(tps65912_spi_driver); 75 76 MODULE_AUTHOR("Andrew F. Davis <afd@ti.com>"); 77 MODULE_DESCRIPTION("TPS65912x SPI Interface Driver"); 78 MODULE_LICENSE("GPL v2"); 79