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