1 // SPDX-License-Identifier: GPL-2.0 2 // 3 // CS35l41 HDA I2C driver 4 // 5 // Copyright 2021 Cirrus Logic, Inc. 6 // 7 // Author: Lucas Tanure <tanureal@opensource.cirrus.com> 8 9 #include <linux/mod_devicetable.h> 10 #include <linux/module.h> 11 #include <linux/i2c.h> 12 13 #include "cs35l41_hda.h" 14 15 static int cs35l41_hda_i2c_probe(struct i2c_client *clt, const struct i2c_device_id *id) 16 { 17 const char *device_name; 18 19 /* 20 * Compare against the device name so it works for SPI, normal ACPI 21 * and for ACPI by serial-multi-instantiate matching cases. 22 */ 23 if (strstr(dev_name(&clt->dev), "CLSA0100")) 24 device_name = "CLSA0100"; 25 else if (strstr(dev_name(&clt->dev), "CLSA0101")) 26 device_name = "CLSA0101"; 27 else if (strstr(dev_name(&clt->dev), "CSC3551")) 28 device_name = "CSC3551"; 29 else 30 return -ENODEV; 31 32 return cs35l41_hda_probe(&clt->dev, device_name, clt->addr, clt->irq, 33 devm_regmap_init_i2c(clt, &cs35l41_regmap_i2c)); 34 } 35 36 static int cs35l41_hda_i2c_remove(struct i2c_client *clt) 37 { 38 cs35l41_hda_remove(&clt->dev); 39 40 return 0; 41 } 42 43 static const struct i2c_device_id cs35l41_hda_i2c_id[] = { 44 { "cs35l41-hda", 0 }, 45 {} 46 }; 47 48 static const struct acpi_device_id cs35l41_acpi_hda_match[] = { 49 {"CLSA0100", 0 }, 50 {"CLSA0101", 0 }, 51 {"CSC3551", 0 }, 52 {} 53 }; 54 MODULE_DEVICE_TABLE(acpi, cs35l41_acpi_hda_match); 55 56 static struct i2c_driver cs35l41_i2c_driver = { 57 .driver = { 58 .name = "cs35l41-hda", 59 .acpi_match_table = cs35l41_acpi_hda_match, 60 .pm = &cs35l41_hda_pm_ops, 61 }, 62 .id_table = cs35l41_hda_i2c_id, 63 .probe = cs35l41_hda_i2c_probe, 64 .remove = cs35l41_hda_i2c_remove, 65 }; 66 module_i2c_driver(cs35l41_i2c_driver); 67 68 MODULE_DESCRIPTION("HDA CS35L41 driver"); 69 MODULE_IMPORT_NS(SND_HDA_SCODEC_CS35L41); 70 MODULE_AUTHOR("Lucas Tanure <tanureal@opensource.cirrus.com>"); 71 MODULE_LICENSE("GPL"); 72