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