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 void pcm512x_i2c_remove(struct i2c_client *i2c) 33 { 34 pcm512x_remove(&i2c->dev); 35 } 36 37 static const struct i2c_device_id pcm512x_i2c_id[] = { 38 { "pcm5121", }, 39 { "pcm5122", }, 40 { "pcm5141", }, 41 { "pcm5142", }, 42 { } 43 }; 44 MODULE_DEVICE_TABLE(i2c, pcm512x_i2c_id); 45 46 #if defined(CONFIG_OF) 47 static const struct of_device_id pcm512x_of_match[] = { 48 { .compatible = "ti,pcm5121", }, 49 { .compatible = "ti,pcm5122", }, 50 { .compatible = "ti,pcm5141", }, 51 { .compatible = "ti,pcm5142", }, 52 { } 53 }; 54 MODULE_DEVICE_TABLE(of, pcm512x_of_match); 55 #endif 56 57 #ifdef CONFIG_ACPI 58 static const struct acpi_device_id pcm512x_acpi_match[] = { 59 { "104C5121", 0 }, 60 { "104C5122", 0 }, 61 { "104C5141", 0 }, 62 { "104C5142", 0 }, 63 { }, 64 }; 65 MODULE_DEVICE_TABLE(acpi, pcm512x_acpi_match); 66 #endif 67 68 static struct i2c_driver pcm512x_i2c_driver = { 69 .probe = pcm512x_i2c_probe, 70 .remove = pcm512x_i2c_remove, 71 .id_table = pcm512x_i2c_id, 72 .driver = { 73 .name = "pcm512x", 74 .of_match_table = of_match_ptr(pcm512x_of_match), 75 .acpi_match_table = ACPI_PTR(pcm512x_acpi_match), 76 .pm = &pcm512x_pm_ops, 77 }, 78 }; 79 80 module_i2c_driver(pcm512x_i2c_driver); 81 82 MODULE_DESCRIPTION("ASoC PCM512x codec driver - I2C"); 83 MODULE_AUTHOR("Mark Brown <broonie@kernel.org>"); 84 MODULE_LICENSE("GPL v2"); 85