1 /* 2 * Driver for the PCM512x CODECs 3 * 4 * Author: Mark Brown <broonie@linaro.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 21 #include "pcm512x.h" 22 23 static int pcm512x_i2c_probe(struct i2c_client *i2c, 24 const struct i2c_device_id *id) 25 { 26 struct regmap *regmap; 27 struct regmap_config config = pcm512x_regmap; 28 29 /* msb needs to be set to enable auto-increment of addresses */ 30 config.read_flag_mask = 0x80; 31 config.write_flag_mask = 0x80; 32 33 regmap = devm_regmap_init_i2c(i2c, &config); 34 if (IS_ERR(regmap)) 35 return PTR_ERR(regmap); 36 37 return pcm512x_probe(&i2c->dev, regmap); 38 } 39 40 static int pcm512x_i2c_remove(struct i2c_client *i2c) 41 { 42 pcm512x_remove(&i2c->dev); 43 return 0; 44 } 45 46 static const struct i2c_device_id pcm512x_i2c_id[] = { 47 { "pcm5121", }, 48 { "pcm5122", }, 49 { "pcm5141", }, 50 { "pcm5142", }, 51 { } 52 }; 53 MODULE_DEVICE_TABLE(i2c, pcm512x_i2c_id); 54 55 static const struct of_device_id pcm512x_of_match[] = { 56 { .compatible = "ti,pcm5121", }, 57 { .compatible = "ti,pcm5122", }, 58 { .compatible = "ti,pcm5141", }, 59 { .compatible = "ti,pcm5142", }, 60 { } 61 }; 62 MODULE_DEVICE_TABLE(of, pcm512x_of_match); 63 64 static struct i2c_driver pcm512x_i2c_driver = { 65 .probe = pcm512x_i2c_probe, 66 .remove = pcm512x_i2c_remove, 67 .id_table = pcm512x_i2c_id, 68 .driver = { 69 .name = "pcm512x", 70 .owner = THIS_MODULE, 71 .of_match_table = pcm512x_of_match, 72 .pm = &pcm512x_pm_ops, 73 }, 74 }; 75 76 module_i2c_driver(pcm512x_i2c_driver); 77 78 MODULE_DESCRIPTION("ASoC PCM512x codec driver - I2C"); 79 MODULE_AUTHOR("Mark Brown <broonie@linaro.org>"); 80 MODULE_LICENSE("GPL v2"); 81