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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"); |