1 // SPDX-License-Identifier: GPL-2.0
2 /*
3 * CS40L50 Advanced Haptic Driver with waveform memory,
4 * integrated DSP, and closed-loop algorithms
5 *
6 * Copyright 2024 Cirrus Logic, Inc.
7 *
8 * Author: James Ogletree <james.ogletree@cirrus.com>
9 */
10
11 #include <linux/mfd/cs40l50.h>
12 #include <linux/spi/spi.h>
13
cs40l50_spi_probe(struct spi_device * spi)14 static int cs40l50_spi_probe(struct spi_device *spi)
15 {
16 struct cs40l50 *cs40l50;
17
18 cs40l50 = devm_kzalloc(&spi->dev, sizeof(*cs40l50), GFP_KERNEL);
19 if (!cs40l50)
20 return -ENOMEM;
21
22 spi_set_drvdata(spi, cs40l50);
23
24 cs40l50->dev = &spi->dev;
25 cs40l50->irq = spi->irq;
26
27 cs40l50->regmap = devm_regmap_init_spi(spi, &cs40l50_regmap);
28 if (IS_ERR(cs40l50->regmap))
29 return dev_err_probe(cs40l50->dev, PTR_ERR(cs40l50->regmap),
30 "Failed to initialize register map\n");
31
32 return cs40l50_probe(cs40l50);
33 }
34
cs40l50_spi_remove(struct spi_device * spi)35 static void cs40l50_spi_remove(struct spi_device *spi)
36 {
37 struct cs40l50 *cs40l50 = spi_get_drvdata(spi);
38
39 cs40l50_remove(cs40l50);
40 }
41
42 static const struct spi_device_id cs40l50_id_spi[] = {
43 { "cs40l50" },
44 {}
45 };
46 MODULE_DEVICE_TABLE(spi, cs40l50_id_spi);
47
48 static const struct of_device_id cs40l50_of_match[] = {
49 { .compatible = "cirrus,cs40l50" },
50 {}
51 };
52 MODULE_DEVICE_TABLE(of, cs40l50_of_match);
53
54 static struct spi_driver cs40l50_spi_driver = {
55 .driver = {
56 .name = "cs40l50",
57 .of_match_table = cs40l50_of_match,
58 .pm = pm_ptr(&cs40l50_pm_ops),
59 },
60 .id_table = cs40l50_id_spi,
61 .probe = cs40l50_spi_probe,
62 .remove = cs40l50_spi_remove,
63 };
64 module_spi_driver(cs40l50_spi_driver);
65
66 MODULE_DESCRIPTION("CS40L50 SPI Driver");
67 MODULE_AUTHOR("James Ogletree, Cirrus Logic Inc. <james.ogletree@cirrus.com>");
68 MODULE_LICENSE("GPL");
69