1 // SPDX-License-Identifier: GPL-2.0-only 2 /* 3 * Driver for the PCM512x CODECs 4 * 5 * Author: Mark Brown <broonie@kernel.org> 6 * Copyright 2014 Linaro Ltd 7 */ 8 9 #include <linux/init.h> 10 #include <linux/module.h> 11 #include <linux/i2c.h> 12 #include <linux/acpi.h> 13 14 #include "pcm512x.h" 15 16 static int pcm512x_i2c_probe(struct i2c_client *i2c, 17 const struct i2c_device_id *id) 18 { 19 struct regmap *regmap; 20 struct regmap_config config = pcm512x_regmap; 21 22 /* msb needs to be set to enable auto-increment of addresses */ 23 config.read_flag_mask = 0x80; 24 config.write_flag_mask = 0x80; 25 26 regmap = devm_regmap_init_i2c(i2c, &config); 27 if (IS_ERR(regmap)) 28 return PTR_ERR(regmap); 29 30 return pcm512x_probe(&i2c->dev, regmap); 31 } 32 33 static int pcm512x_i2c_remove(struct i2c_client *i2c) 34 { 35 pcm512x_remove(&i2c->dev); 36 return 0; 37 } 38 39 static const struct i2c_device_id pcm512x_i2c_id[] = { 40 { "pcm5121", }, 41 { "pcm5122", }, 42 { "pcm5141", }, 43 { "pcm5142", }, 44 { } 45 }; 46 MODULE_DEVICE_TABLE(i2c, pcm512x_i2c_id); 47 48 #if defined(CONFIG_OF) 49 static const struct of_device_id pcm512x_of_match[] = { 50 { .compatible = "ti,pcm5121", }, 51 { .compatible = "ti,pcm5122", }, 52 { .compatible = "ti,pcm5141", }, 53 { .compatible = "ti,pcm5142", }, 54 { } 55 }; 56 MODULE_DEVICE_TABLE(of, pcm512x_of_match); 57 #endif 58 59 #ifdef CONFIG_ACPI 60 static const struct acpi_device_id pcm512x_acpi_match[] = { 61 { "104C5121", 0 }, 62 { "104C5122", 0 }, 63 { "104C5141", 0 }, 64 { "104C5142", 0 }, 65 { }, 66 }; 67 MODULE_DEVICE_TABLE(acpi, pcm512x_acpi_match); 68 #endif 69 70 static struct i2c_driver pcm512x_i2c_driver = { 71 .probe = pcm512x_i2c_probe, 72 .remove = pcm512x_i2c_remove, 73 .id_table = pcm512x_i2c_id, 74 .driver = { 75 .name = "pcm512x", 76 .of_match_table = of_match_ptr(pcm512x_of_match), 77 .acpi_match_table = ACPI_PTR(pcm512x_acpi_match), 78 .pm = &pcm512x_pm_ops, 79 }, 80 }; 81 82 module_i2c_driver(pcm512x_i2c_driver); 83 84 MODULE_DESCRIPTION("ASoC PCM512x codec driver - I2C"); 85 MODULE_AUTHOR("Mark Brown <broonie@kernel.org>"); 86 MODULE_LICENSE("GPL v2"); 87