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/i2c.h> 12 #include <linux/mfd/cs40l50.h> 13 14 static int cs40l50_i2c_probe(struct i2c_client *i2c) 15 { 16 struct cs40l50 *cs40l50; 17 18 cs40l50 = devm_kzalloc(&i2c->dev, sizeof(*cs40l50), GFP_KERNEL); 19 if (!cs40l50) 20 return -ENOMEM; 21 22 i2c_set_clientdata(i2c, cs40l50); 23 24 cs40l50->dev = &i2c->dev; 25 cs40l50->irq = i2c->irq; 26 27 cs40l50->regmap = devm_regmap_init_i2c(i2c, &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 35 static void cs40l50_i2c_remove(struct i2c_client *i2c) 36 { 37 struct cs40l50 *cs40l50 = i2c_get_clientdata(i2c); 38 39 cs40l50_remove(cs40l50); 40 } 41 42 static const struct i2c_device_id cs40l50_id_i2c[] = { 43 { "cs40l50" }, 44 {} 45 }; 46 MODULE_DEVICE_TABLE(i2c, cs40l50_id_i2c); 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 i2c_driver cs40l50_i2c_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_i2c, 61 .probe = cs40l50_i2c_probe, 62 .remove = cs40l50_i2c_remove, 63 }; 64 module_i2c_driver(cs40l50_i2c_driver); 65 66 MODULE_DESCRIPTION("CS40L50 I2C Driver"); 67 MODULE_AUTHOR("James Ogletree, Cirrus Logic Inc. <james.ogletree@cirrus.com>"); 68 MODULE_LICENSE("GPL"); 69