1 /* 2 * wm8804-i2c.c -- WM8804 S/PDIF transceiver driver - I2C 3 * 4 * Copyright 2015 Cirrus Logic Inc 5 * 6 * Author: Charles Keepax <ckeepax@opensource.wolfsonmicro.com> 7 * 8 * This program is free software; you can redistribute it and/or modify 9 * it under the terms of the GNU General Public License version 2 as 10 * published by the Free Software Foundation. 11 */ 12 13 #include <linux/init.h> 14 #include <linux/module.h> 15 #include <linux/i2c.h> 16 #include <linux/acpi.h> 17 18 #include "wm8804.h" 19 20 static int wm8804_i2c_probe(struct i2c_client *i2c, 21 const struct i2c_device_id *id) 22 { 23 struct regmap *regmap; 24 25 regmap = devm_regmap_init_i2c(i2c, &wm8804_regmap_config); 26 if (IS_ERR(regmap)) 27 return PTR_ERR(regmap); 28 29 return wm8804_probe(&i2c->dev, regmap); 30 } 31 32 static int wm8804_i2c_remove(struct i2c_client *i2c) 33 { 34 wm8804_remove(&i2c->dev); 35 return 0; 36 } 37 38 static const struct i2c_device_id wm8804_i2c_id[] = { 39 { "wm8804", 0 }, 40 { } 41 }; 42 MODULE_DEVICE_TABLE(i2c, wm8804_i2c_id); 43 44 #if defined(CONFIG_OF) 45 static const struct of_device_id wm8804_of_match[] = { 46 { .compatible = "wlf,wm8804", }, 47 { } 48 }; 49 MODULE_DEVICE_TABLE(of, wm8804_of_match); 50 #endif 51 52 #ifdef CONFIG_ACPI 53 static const struct acpi_device_id wm8804_acpi_match[] = { 54 { "1AEC8804", 0 }, /* Wolfson PCI ID + part ID */ 55 { "10138804", 0 }, /* Cirrus Logic PCI ID + part ID */ 56 { }, 57 }; 58 MODULE_DEVICE_TABLE(acpi, wm8804_acpi_match); 59 #endif 60 61 static struct i2c_driver wm8804_i2c_driver = { 62 .driver = { 63 .name = "wm8804", 64 .pm = &wm8804_pm, 65 .of_match_table = of_match_ptr(wm8804_of_match), 66 .acpi_match_table = ACPI_PTR(wm8804_acpi_match), 67 }, 68 .probe = wm8804_i2c_probe, 69 .remove = wm8804_i2c_remove, 70 .id_table = wm8804_i2c_id 71 }; 72 73 module_i2c_driver(wm8804_i2c_driver); 74 75 MODULE_DESCRIPTION("ASoC WM8804 driver - I2C"); 76 MODULE_AUTHOR("Charles Keepax <ckeepax@opensource.wolfsonmicro.com>"); 77 MODULE_LICENSE("GPL"); 78