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 ret = cs35l56_init_config_for_spi(&cs35l56->base, spi); 26 if (ret) 27 return ret; 28 29 #ifdef CS35L56_WAKE_HOLD_TIME_US 30 cs35l56->base.can_hibernate = true; 31 #endif 32 33 cs35l56->base.regmap = devm_regmap_init_spi(spi, &cs35l56_regmap_spi); 34 if (IS_ERR(cs35l56->base.regmap)) { 35 ret = PTR_ERR(cs35l56->base.regmap); 36 dev_err(cs35l56->base.dev, "Failed to allocate register map: %d\n", 37 ret); 38 return ret; 39 } 40 41 ret = cs35l56_hda_common_probe(cs35l56, id->driver_data, spi_get_chipselect(spi, 0)); 42 if (ret) 43 return ret; 44 ret = cs35l56_irq_request(&cs35l56->base, spi->irq); 45 if (ret < 0) 46 cs35l56_hda_remove(cs35l56->base.dev); 47 48 return ret; 49 } 50 51 static void cs35l56_hda_spi_remove(struct spi_device *spi) 52 { 53 cs35l56_hda_remove(&spi->dev); 54 } 55 56 static const struct spi_device_id cs35l56_hda_spi_id[] = { 57 { "cs35l54-hda", 0x3554 }, 58 { "cs35l56-hda", 0x3556 }, 59 { "cs35l57-hda", 0x3557 }, 60 {} 61 }; 62 63 static const struct acpi_device_id cs35l56_acpi_hda_match[] = { 64 { "CSC3554", 0 }, 65 { "CSC3556", 0 }, 66 { "CSC3557", 0 }, 67 {} 68 }; 69 MODULE_DEVICE_TABLE(acpi, cs35l56_acpi_hda_match); 70 71 static struct spi_driver cs35l56_hda_spi_driver = { 72 .driver = { 73 .name = "cs35l56-hda", 74 .acpi_match_table = cs35l56_acpi_hda_match, 75 .pm = &cs35l56_hda_pm_ops, 76 }, 77 .id_table = cs35l56_hda_spi_id, 78 .probe = cs35l56_hda_spi_probe, 79 .remove = cs35l56_hda_spi_remove, 80 }; 81 module_spi_driver(cs35l56_hda_spi_driver); 82 83 MODULE_DESCRIPTION("HDA CS35L56 SPI driver"); 84 MODULE_IMPORT_NS("SND_HDA_SCODEC_CS35L56"); 85 MODULE_IMPORT_NS("SND_SOC_CS35L56_SHARED"); 86 MODULE_AUTHOR("Richard Fitzgerald <rf@opensource.cirrus.com>"); 87 MODULE_AUTHOR("Simon Trimmer <simont@opensource.cirrus.com>"); 88 MODULE_LICENSE("GPL"); 89