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 14static 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 47static void cs35l56_hda_i2c_remove(struct i2c_client *clt) 48{ 49 cs35l56_hda_remove(&clt->dev); 50} 51 52static const struct i2c_device_id cs35l56_hda_i2c_id[] = { 53 { "cs35l54-hda", 0x3554 }, 54 { "cs35l56-hda", 0x3556 }, 55 { "cs35l57-hda", 0x3557 }, 56 {} 57}; 58 59static const struct acpi_device_id cs35l56_acpi_hda_match[] = { 60 { "CSC3554", 0 }, 61 { "CSC3556", 0 }, 62 { "CSC3557", 0 }, 63 {} 64}; 65MODULE_DEVICE_TABLE(acpi, cs35l56_acpi_hda_match); 66 67static struct i2c_driver cs35l56_hda_i2c_driver = { 68 .driver = { 69 .name = "cs35l56-hda", 70 .acpi_match_table = cs35l56_acpi_hda_match, 71 .pm = &cs35l56_hda_pm_ops, 72 }, 73 .id_table = cs35l56_hda_i2c_id, 74 .probe = cs35l56_hda_i2c_probe, 75 .remove = cs35l56_hda_i2c_remove, 76}; 77module_i2c_driver(cs35l56_hda_i2c_driver); 78 79MODULE_DESCRIPTION("HDA CS35L56 I2C driver"); 80MODULE_IMPORT_NS(SND_HDA_SCODEC_CS35L56); 81MODULE_IMPORT_NS(SND_SOC_CS35L56_SHARED); 82MODULE_AUTHOR("Richard Fitzgerald <rf@opensource.cirrus.com>"); 83MODULE_AUTHOR("Simon Trimmer <simont@opensource.cirrus.com>"); 84MODULE_LICENSE("GPL"); 85