1 /* SPDX-License-Identifier: GPL-2.0 2 * 3 * Copyright 2011-2019 NW Digital Radio 4 * 5 * Author: Annaliese McDermond <nh6z@nh6z.net> 6 * 7 * Based on sound/soc/codecs/wm8974 and TI driver for kernel 2.6.27. 8 * 9 */ 10 11 #include <linux/spi/spi.h> 12 #include <linux/module.h> 13 #include <linux/of.h> 14 #include <linux/regmap.h> 15 #include <sound/soc.h> 16 17 #include "tlv320aic32x4.h" 18 19 static const struct of_device_id aic32x4_of_id[]; 20 21 static int aic32x4_spi_probe(struct spi_device *spi) 22 { 23 struct regmap *regmap; 24 struct regmap_config config; 25 26 config = aic32x4_regmap_config; 27 config.reg_bits = 7; 28 config.pad_bits = 1; 29 config.val_bits = 8; 30 config.read_flag_mask = 0x01; 31 32 regmap = devm_regmap_init_spi(spi, &config); 33 34 if (spi->dev.of_node) { 35 const struct of_device_id *oid; 36 37 oid = of_match_node(aic32x4_of_id, spi->dev.of_node); 38 dev_set_drvdata(&spi->dev, (void *)oid->data); 39 } else { 40 const struct spi_device_id *id_entry; 41 42 id_entry = spi_get_device_id(spi); 43 dev_set_drvdata(&spi->dev, (void *)id_entry->driver_data); 44 } 45 46 return aic32x4_probe(&spi->dev, regmap); 47 } 48 49 static void aic32x4_spi_remove(struct spi_device *spi) 50 { 51 aic32x4_remove(&spi->dev); 52 } 53 54 static const struct spi_device_id aic32x4_spi_id[] = { 55 { "tlv320aic32x4", (kernel_ulong_t)AIC32X4_TYPE_AIC32X4 }, 56 { "tlv320aic32x6", (kernel_ulong_t)AIC32X4_TYPE_AIC32X6 }, 57 { /* sentinel */ } 58 }; 59 MODULE_DEVICE_TABLE(spi, aic32x4_spi_id); 60 61 static const struct of_device_id aic32x4_of_id[] = { 62 { .compatible = "ti,tlv320aic32x4", .data = (void *)AIC32X4_TYPE_AIC32X4 }, 63 { .compatible = "ti,tlv320aic32x6", .data = (void *)AIC32X4_TYPE_AIC32X6 }, 64 { /* senitel */ } 65 }; 66 MODULE_DEVICE_TABLE(of, aic32x4_of_id); 67 68 static struct spi_driver aic32x4_spi_driver = { 69 .driver = { 70 .name = "tlv320aic32x4", 71 .owner = THIS_MODULE, 72 .of_match_table = aic32x4_of_id, 73 }, 74 .probe = aic32x4_spi_probe, 75 .remove = aic32x4_spi_remove, 76 .id_table = aic32x4_spi_id, 77 }; 78 79 module_spi_driver(aic32x4_spi_driver); 80 81 MODULE_DESCRIPTION("ASoC TLV320AIC32x4 codec driver SPI"); 82 MODULE_AUTHOR("Annaliese McDermond <nh6z@nh6z.net>"); 83 MODULE_LICENSE("GPL"); 84