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         struct cs35l56_hda *cs35l56;
  17         int ret;
  18
  19         cs35l56 = devm_kzalloc(&spi->dev, sizeof(*cs35l56), GFP_KERNEL);
  20         if (!cs35l56)
  21                 return -ENOMEM;
  22
  23         cs35l56->base.dev = &spi->dev;
  24         cs35l56->base.regmap = devm_regmap_init_spi(spi, &cs35l56_regmap_spi);
  25         if (IS_ERR(cs35l56->base.regmap)) {
  26                 ret = PTR_ERR(cs35l56->base.regmap);
  27                 dev_err(cs35l56->base.dev, "Failed to allocate register map: %d\n",
  28                         ret);
  29                 return ret;
  30         }
  31
  32         ret = cs35l56_hda_common_probe(cs35l56, spi->chip_select);
  33         if (ret)
  34                 return ret;
  35         ret = cs35l56_irq_request(&cs35l56->base, spi->irq);
  36         if (ret < 0)
  37                 cs35l56_hda_remove(cs35l56->base.dev);
  38
  39         return ret;
  40 }
  41
  42 static void cs35l56_hda_spi_remove(struct spi_device *spi)
  43 {
  44         cs35l56_hda_remove(&spi->dev);
  45 }
  46
  47 static const struct spi_device_id cs35l56_hda_spi_id[] = {
  48         { "cs35l56-hda", 0 },
  49         {}
  50 };
  51
  52 static struct spi_driver cs35l56_hda_spi_driver = {
  53         .driver = {
  54                 .name           = "cs35l56-hda",
  55                 .pm             = &cs35l56_hda_pm_ops,
  56         },
  57         .id_table       = cs35l56_hda_spi_id,
  58         .probe          = cs35l56_hda_spi_probe,
  59         .remove         = cs35l56_hda_spi_remove,
  60 };
  61 module_spi_driver(cs35l56_hda_spi_driver);
  62
  63 MODULE_DESCRIPTION("HDA CS35L56 SPI driver");
  64 MODULE_IMPORT_NS(SND_HDA_SCODEC_CS35L56);
  65 MODULE_IMPORT_NS(SND_SOC_CS35L56_SHARED);
  66 MODULE_AUTHOR("Richard Fitzgerald <rf@opensource.cirrus.com>");
  67 MODULE_AUTHOR("Simon Trimmer <simont@opensource.cirrus.com>");
  68 MODULE_LICENSE("GPL");