1 // SPDX-License-Identifier: GPL-2.0 2 // 3 // cs35l41.c -- CS35l41 HDA SPI driver 4 // 5 // Copyright 2021 Cirrus Logic, Inc. 6 // 7 // Author: Lucas Tanure <tanureal@opensource.cirrus.com> 8 9 #include <linux/acpi.h> 10 #include <linux/module.h> 11 #include <linux/spi/spi.h> 12 13 #include "cs35l41_hda.h" 14 15 static int cs35l41_hda_spi_probe(struct spi_device *spi) 16 { 17 const char *device_name; 18 19 /* Compare against the device name so it works for SPI, normal ACPI 20 * and for ACPI by spi-multi-instantiate matching cases 21 */ 22 if (strstr(dev_name(&spi->dev), "CSC3551")) 23 device_name = "CSC3551"; 24 else 25 return -ENODEV; 26 27 return cs35l41_hda_probe(&spi->dev, device_name, spi->chip_select, spi->irq, 28 devm_regmap_init_spi(spi, &cs35l41_regmap_spi)); 29 } 30 31 static int cs35l41_hda_spi_remove(struct spi_device *spi) 32 { 33 cs35l41_hda_remove(&spi->dev); 34 35 return 0; 36 } 37 38 static const struct spi_device_id cs35l41_hda_spi_id[] = { 39 { "cs35l41-hda", 0 }, 40 {} 41 }; 42 43 #ifdef CONFIG_ACPI 44 static const struct acpi_device_id cs35l41_acpi_hda_match[] = { 45 { "CSC3551", 0 }, 46 {}, 47 }; 48 MODULE_DEVICE_TABLE(acpi, cs35l41_acpi_hda_match); 49 #endif 50 51 static struct spi_driver cs35l41_spi_driver = { 52 .driver = { 53 .name = "cs35l41_hda", 54 .acpi_match_table = ACPI_PTR(cs35l41_acpi_hda_match), 55 }, 56 .id_table = cs35l41_hda_spi_id, 57 .probe = cs35l41_hda_spi_probe, 58 .remove = cs35l41_hda_spi_remove, 59 }; 60 module_spi_driver(cs35l41_spi_driver); 61 62 MODULE_DESCRIPTION("HDA CS35L41 driver"); 63 MODULE_IMPORT_NS(SND_HDA_SCODEC_CS35L41); 64 MODULE_AUTHOR("Lucas Tanure <tanureal@opensource.cirrus.com>"); 65 MODULE_LICENSE("GPL"); 66