1 /* 2 * Driver for the PCM512x CODECs 3 * 4 * Author: Mark Brown <broonie@kernel.org> 5 * Copyright 2014 Linaro Ltd 6 * 7 * This program is free software; you can redistribute it and/or 8 * modify it under the terms of the GNU General Public License 9 * version 2 as published by the Free Software Foundation. 10 * 11 * This program is distributed in the hope that it will be useful, but 12 * WITHOUT ANY WARRANTY; without even the implied warranty of 13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 14 * General Public License for more details. 15 */ 16 17 #include <linux/init.h> 18 #include <linux/module.h> 19 #include <linux/i2c.h> 20 #include <linux/acpi.h> 21 22 #include "pcm512x.h" 23 24 static int pcm512x_i2c_probe(struct i2c_client *i2c, 25 const struct i2c_device_id *id) 26 { 27 struct regmap *regmap; 28 struct regmap_config config = pcm512x_regmap; 29 30 /* msb needs to be set to enable auto-increment of addresses */ 31 config.read_flag_mask = 0x80; 32 config.write_flag_mask = 0x80; 33 34 regmap = devm_regmap_init_i2c(i2c, &config); 35 if (IS_ERR(regmap)) 36 return PTR_ERR(regmap); 37 38 return pcm512x_probe(&i2c->dev, regmap); 39 } 40 41 static int pcm512x_i2c_remove(struct i2c_client *i2c) 42 { 43 pcm512x_remove(&i2c->dev); 44 return 0; 45 } 46 47 static const struct i2c_device_id pcm512x_i2c_id[] = { 48 { "pcm5121", }, 49 { "pcm5122", }, 50 { "pcm5141", }, 51 { "pcm5142", }, 52 { } 53 }; 54 MODULE_DEVICE_TABLE(i2c, pcm512x_i2c_id); 55 56 #if defined(CONFIG_OF) 57 static const struct of_device_id pcm512x_of_match[] = { 58 { .compatible = "ti,pcm5121", }, 59 { .compatible = "ti,pcm5122", }, 60 { .compatible = "ti,pcm5141", }, 61 { .compatible = "ti,pcm5142", }, 62 { } 63 }; 64 MODULE_DEVICE_TABLE(of, pcm512x_of_match); 65 #endif 66 67 #ifdef CONFIG_ACPI 68 static const struct acpi_device_id pcm512x_acpi_match[] = { 69 { "104C5121", 0 }, 70 { "104C5122", 0 }, 71 { "104C5141", 0 }, 72 { "104C5142", 0 }, 73 { }, 74 }; 75 MODULE_DEVICE_TABLE(acpi, pcm512x_acpi_match); 76 #endif 77 78 static struct i2c_driver pcm512x_i2c_driver = { 79 .probe = pcm512x_i2c_probe, 80 .remove = pcm512x_i2c_remove, 81 .id_table = pcm512x_i2c_id, 82 .driver = { 83 .name = "pcm512x", 84 .of_match_table = of_match_ptr(pcm512x_of_match), 85 .acpi_match_table = ACPI_PTR(pcm512x_acpi_match), 86 .pm = &pcm512x_pm_ops, 87 }, 88 }; 89 90 module_i2c_driver(pcm512x_i2c_driver); 91 92 MODULE_DESCRIPTION("ASoC PCM512x codec driver - I2C"); 93 MODULE_AUTHOR("Mark Brown <broonie@kernel.org>"); 94 MODULE_LICENSE("GPL v2"); 95