1 // SPDX-License-Identifier: GPL-2.0-only 2 /* 3 * wm8804-i2c.c -- WM8804 S/PDIF transceiver driver - I2C 4 * 5 * Copyright 2015 Cirrus Logic Inc 6 * 7 * Author: Charles Keepax <ckeepax@opensource.wolfsonmicro.com> 8 */ 9 10 #include <linux/init.h> 11 #include <linux/module.h> 12 #include <linux/i2c.h> 13 #include <linux/acpi.h> 14 15 #include "wm8804.h" 16 17 static int wm8804_i2c_probe(struct i2c_client *i2c, 18 const struct i2c_device_id *id) 19 { 20 struct regmap *regmap; 21 22 regmap = devm_regmap_init_i2c(i2c, &wm8804_regmap_config); 23 if (IS_ERR(regmap)) 24 return PTR_ERR(regmap); 25 26 return wm8804_probe(&i2c->dev, regmap); 27 } 28 29 static int wm8804_i2c_remove(struct i2c_client *i2c) 30 { 31 wm8804_remove(&i2c->dev); 32 return 0; 33 } 34 35 static const struct i2c_device_id wm8804_i2c_id[] = { 36 { "wm8804", 0 }, 37 { } 38 }; 39 MODULE_DEVICE_TABLE(i2c, wm8804_i2c_id); 40 41 #if defined(CONFIG_OF) 42 static const struct of_device_id wm8804_of_match[] = { 43 { .compatible = "wlf,wm8804", }, 44 { } 45 }; 46 MODULE_DEVICE_TABLE(of, wm8804_of_match); 47 #endif 48 49 #ifdef CONFIG_ACPI 50 static const struct acpi_device_id wm8804_acpi_match[] = { 51 { "1AEC8804", 0 }, /* Wolfson PCI ID + part ID */ 52 { "10138804", 0 }, /* Cirrus Logic PCI ID + part ID */ 53 { }, 54 }; 55 MODULE_DEVICE_TABLE(acpi, wm8804_acpi_match); 56 #endif 57 58 static struct i2c_driver wm8804_i2c_driver = { 59 .driver = { 60 .name = "wm8804", 61 .pm = &wm8804_pm, 62 .of_match_table = of_match_ptr(wm8804_of_match), 63 .acpi_match_table = ACPI_PTR(wm8804_acpi_match), 64 }, 65 .probe = wm8804_i2c_probe, 66 .remove = wm8804_i2c_remove, 67 .id_table = wm8804_i2c_id 68 }; 69 70 module_i2c_driver(wm8804_i2c_driver); 71 72 MODULE_DESCRIPTION("ASoC WM8804 driver - I2C"); 73 MODULE_AUTHOR("Charles Keepax <ckeepax@opensource.wolfsonmicro.com>"); 74 MODULE_LICENSE("GPL"); 75