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 const struct i2c_device_id *id = i2c_client_get_device_id(clt); 17 struct cs35l56_hda *cs35l56; 18 int ret; 19 20 cs35l56 = devm_kzalloc(&clt->dev, sizeof(*cs35l56), GFP_KERNEL); 21 if (!cs35l56) 22 return -ENOMEM; 23 24 cs35l56->base.dev = &clt->dev; 25 26 #ifdef CS35L56_WAKE_HOLD_TIME_US 27 cs35l56->base.can_hibernate = true; 28 #endif 29 cs35l56->base.regmap = devm_regmap_init_i2c(clt, &cs35l56_regmap_i2c); 30 if (IS_ERR(cs35l56->base.regmap)) { 31 ret = PTR_ERR(cs35l56->base.regmap); 32 dev_err(cs35l56->base.dev, "Failed to allocate register map: %d\n", 33 ret); 34 return ret; 35 } 36 37 ret = cs35l56_hda_common_probe(cs35l56, id->driver_data, clt->addr); 38 if (ret) 39 return ret; 40 ret = cs35l56_irq_request(&cs35l56->base, clt->irq); 41 if (ret < 0) 42 cs35l56_hda_remove(cs35l56->base.dev); 43 44 return ret; 45 } 46 47 static void cs35l56_hda_i2c_remove(struct i2c_client *clt) 48 { 49 cs35l56_hda_remove(&clt->dev); 50 } 51 52 static const struct i2c_device_id cs35l56_hda_i2c_id[] = { 53 { "cs35l54-hda", 0x3554 }, 54 { "cs35l56-hda", 0x3556 }, 55 { "cs35l57-hda", 0x3557 }, 56 {} 57 }; 58 59 static struct i2c_driver cs35l56_hda_i2c_driver = { 60 .driver = { 61 .name = "cs35l56-hda", 62 .pm = &cs35l56_hda_pm_ops, 63 }, 64 .id_table = cs35l56_hda_i2c_id, 65 .probe = cs35l56_hda_i2c_probe, 66 .remove = cs35l56_hda_i2c_remove, 67 }; 68 module_i2c_driver(cs35l56_hda_i2c_driver); 69 70 MODULE_DESCRIPTION("HDA CS35L56 I2C driver"); 71 MODULE_IMPORT_NS(SND_HDA_SCODEC_CS35L56); 72 MODULE_IMPORT_NS(SND_SOC_CS35L56_SHARED); 73 MODULE_AUTHOR("Richard Fitzgerald <rf@opensource.cirrus.com>"); 74 MODULE_AUTHOR("Simon Trimmer <simont@opensource.cirrus.com>"); 75 MODULE_LICENSE("GPL"); 76