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 { 19 struct regmap *regmap; 20 21 regmap = devm_regmap_init_i2c(i2c, &wm8804_regmap_config); 22 if (IS_ERR(regmap)) 23 return PTR_ERR(regmap); 24 25 return wm8804_probe(&i2c->dev, regmap); 26 } 27 28 static int wm8804_i2c_remove(struct i2c_client *i2c) 29 { 30 wm8804_remove(&i2c->dev); 31 return 0; 32 } 33 34 static const struct i2c_device_id wm8804_i2c_id[] = { 35 { "wm8804", 0 }, 36 { } 37 }; 38 MODULE_DEVICE_TABLE(i2c, wm8804_i2c_id); 39 40 #if defined(CONFIG_OF) 41 static const struct of_device_id wm8804_of_match[] = { 42 { .compatible = "wlf,wm8804", }, 43 { } 44 }; 45 MODULE_DEVICE_TABLE(of, wm8804_of_match); 46 #endif 47 48 #ifdef CONFIG_ACPI 49 static const struct acpi_device_id wm8804_acpi_match[] = { 50 { "1AEC8804", 0 }, /* Wolfson PCI ID + part ID */ 51 { "10138804", 0 }, /* Cirrus Logic PCI ID + part ID */ 52 { }, 53 }; 54 MODULE_DEVICE_TABLE(acpi, wm8804_acpi_match); 55 #endif 56 57 static struct i2c_driver wm8804_i2c_driver = { 58 .driver = { 59 .name = "wm8804", 60 .pm = &wm8804_pm, 61 .of_match_table = of_match_ptr(wm8804_of_match), 62 .acpi_match_table = ACPI_PTR(wm8804_acpi_match), 63 }, 64 .probe_new = wm8804_i2c_probe, 65 .remove = wm8804_i2c_remove, 66 .id_table = wm8804_i2c_id 67 }; 68 69 module_i2c_driver(wm8804_i2c_driver); 70 71 MODULE_DESCRIPTION("ASoC WM8804 driver - I2C"); 72 MODULE_AUTHOR("Charles Keepax <ckeepax@opensource.wolfsonmicro.com>"); 73 MODULE_LICENSE("GPL"); 74