sound/pci/hda/cs35l56_hda_spi.c

   1 // SPDX-License-Identifier: GPL-2.0-only
   2 //
   3 // CS35L56 HDA audio driver SPI binding
   4 //
   5 // Copyright (C) 2023 Cirrus Logic, Inc. and
   6 //                    Cirrus Logic International Semiconductor Ltd.
   7
   8 #include <linux/module.h>
   9 #include <linux/regmap.h>
  10 #include <linux/spi/spi.h>
  11
  12 #include "cs35l56_hda.h"
  13
  14 static int cs35l56_hda_spi_probe(struct spi_device *spi)
  15 {
  16         const struct spi_device_id *id = spi_get_device_id(spi);
  17         struct cs35l56_hda *cs35l56;
  18         int ret;
  19
  20         cs35l56 = devm_kzalloc(&spi->dev, sizeof(*cs35l56), GFP_KERNEL);
  21         if (!cs35l56)
  22                 return -ENOMEM;
  23
  24         cs35l56->base.dev = &spi->dev;
  25
  26 #ifdef CS35L56_WAKE_HOLD_TIME_US
  27         cs35l56->base.can_hibernate = true;
  28 #endif
  29         cs35l56->base.regmap = devm_regmap_init_spi(spi, &cs35l56_regmap_spi);
  30         if (IS_ERR(cs35l56->base.regmap)) {
  31                 ret = PTR_ERR(cs35l56->base.regmap);
  32                 dev_err(cs35l56->base.dev, "Failed to allocate register map: %d\n",
  33                         ret);
  34                 return ret;
  35         }
  36
  37         ret = cs35l56_hda_common_probe(cs35l56, id->driver_data, spi_get_chipselect(spi, 0));
  38         if (ret)
  39                 return ret;
  40         ret = cs35l56_irq_request(&cs35l56->base, spi->irq);
  41         if (ret < 0)
  42                 cs35l56_hda_remove(cs35l56->base.dev);
  43
  44         return ret;
  45 }
  46
  47 static void cs35l56_hda_spi_remove(struct spi_device *spi)
  48 {
  49         cs35l56_hda_remove(&spi->dev);
  50 }
  51
  52 static const struct spi_device_id cs35l56_hda_spi_id[] = {
  53         { "cs35l54-hda", 0x3554 },
  54         { "cs35l56-hda", 0x3556 },
  55         { "cs35l57-hda", 0x3557 },
  56         {}
  57 };
  58
  59 static const struct acpi_device_id cs35l56_acpi_hda_match[] = {
  60         { "CSC3554", 0 },
  61         { "CSC3556", 0 },
  62         { "CSC3557", 0 },
  63         {}
  64 };
  65 MODULE_DEVICE_TABLE(acpi, cs35l56_acpi_hda_match);
  66
  67 static struct spi_driver cs35l56_hda_spi_driver = {
  68         .driver = {
  69                 .name             = "cs35l56-hda",
  70                 .acpi_match_table = cs35l56_acpi_hda_match,
  71                 .pm               = &cs35l56_hda_pm_ops,
  72         },
  73         .id_table       = cs35l56_hda_spi_id,
  74         .probe          = cs35l56_hda_spi_probe,
  75         .remove         = cs35l56_hda_spi_remove,
  76 };
  77 module_spi_driver(cs35l56_hda_spi_driver);
  78
  79 MODULE_DESCRIPTION("HDA CS35L56 SPI driver");
  80 MODULE_IMPORT_NS(SND_HDA_SCODEC_CS35L56);
  81 MODULE_IMPORT_NS(SND_SOC_CS35L56_SHARED);
  82 MODULE_AUTHOR("Richard Fitzgerald <rf@opensource.cirrus.com>");
  83 MODULE_AUTHOR("Simon Trimmer <simont@opensource.cirrus.com>");
  84 MODULE_LICENSE("GPL");