LXR linux/sound/soc/codecs/tlv320aic32x4-spi.c

   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
  19static const struct of_device_id aic32x4_of_id[];
  20
  21static 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
  49static int aic32x4_spi_remove(struct spi_device *spi)
  50{
  51        return aic32x4_remove(&spi->dev);
  52}
  53
  54static 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};
  59MODULE_DEVICE_TABLE(spi, aic32x4_spi_id);
  60
  61static 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};
  66MODULE_DEVICE_TABLE(of, aic32x4_of_id);
  67
  68static 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
  79module_spi_driver(aic32x4_spi_driver);
  80
  81MODULE_DESCRIPTION("ASoC TLV320AIC32x4 codec driver SPI");
  82MODULE_AUTHOR("Annaliese McDermond <nh6z@nh6z.net>");
  83MODULE_LICENSE("GPL");
  84