1 // SPDX-License-Identifier: GPL-2.0-only 2 // 3 // CS35L56 HDA audio driver I2C binding 4 // 5 // Copyright (C) 2023 Cirrus Logic, Inc. and 6 // Cirrus Logic International Semiconductor Ltd. 7 8 #include <linux/i2c.h> 9 #include <linux/module.h> 10 #include <linux/regmap.h> 11 12 #include "cs35l56_hda.h" 13 14 static int cs35l56_hda_i2c_probe(struct i2c_client *clt) 15 { 16 struct cs35l56_hda *cs35l56; 17 int ret; 18 19 cs35l56 = devm_kzalloc(&clt->dev, sizeof(*cs35l56), GFP_KERNEL); 20 if (!cs35l56) 21 return -ENOMEM; 22 23 cs35l56->base.dev = &clt->dev; 24 cs35l56->base.regmap = devm_regmap_init_i2c(clt, &cs35l56_regmap_i2c); 25 if (IS_ERR(cs35l56->base.regmap)) { 26 ret = PTR_ERR(cs35l56->base.regmap); 27 dev_err(cs35l56->base.dev, "Failed to allocate register map: %d\n", 28 ret); 29 return ret; 30 } 31 32 ret = cs35l56_hda_common_probe(cs35l56, clt->addr); 33 if (ret) 34 return ret; 35 ret = cs35l56_irq_request(&cs35l56->base, clt->irq); 36 if (ret < 0) 37 cs35l56_hda_remove(cs35l56->base.dev); 38 39 return ret; 40 } 41 42 static void cs35l56_hda_i2c_remove(struct i2c_client *clt) 43 { 44 cs35l56_hda_remove(&clt->dev); 45 } 46 47 static const struct i2c_device_id cs35l56_hda_i2c_id[] = { 48 { "cs35l56-hda", 0 }, 49 {} 50 }; 51 52 static const struct acpi_device_id cs35l56_acpi_hda_match[] = { 53 { "CSC3554", 0 }, 54 { "CSC3556", 0 }, 55 { "CSC3557", 0 }, 56 {} 57 }; 58 MODULE_DEVICE_TABLE(acpi, cs35l56_acpi_hda_match); 59 60 static struct i2c_driver cs35l56_hda_i2c_driver = { 61 .driver = { 62 .name = "cs35l56-hda", 63 .acpi_match_table = cs35l56_acpi_hda_match, 64 .pm = &cs35l56_hda_pm_ops, 65 }, 66 .id_table = cs35l56_hda_i2c_id, 67 .probe = cs35l56_hda_i2c_probe, 68 .remove = cs35l56_hda_i2c_remove, 69 }; 70 module_i2c_driver(cs35l56_hda_i2c_driver); 71 72 MODULE_DESCRIPTION("HDA CS35L56 I2C driver"); 73 MODULE_IMPORT_NS(SND_HDA_SCODEC_CS35L56); 74 MODULE_IMPORT_NS(SND_SOC_CS35L56_SHARED); 75 MODULE_AUTHOR("Richard Fitzgerald <rf@opensource.cirrus.com>"); 76 MODULE_AUTHOR("Simon Trimmer <simont@opensource.cirrus.com>"); 77 MODULE_LICENSE("GPL"); 78