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1// SPDX-License-Identifier: GPL-2.0-only2//3// CS35L56 ALSA SoC audio driver SPI binding4//5// Copyright (C) 2023 Cirrus Logic, Inc. and6// Cirrus Logic International Semiconductor Ltd.7 8#include <linux/acpi.h>9#include <linux/module.h>10#include <linux/moduleparam.h>11#include <linux/regmap.h>12#include <linux/spi/spi.h>13#include <linux/types.h>14 15#include "cs35l56.h"16 17static int cs35l56_spi_probe(struct spi_device *spi)18{19 const struct regmap_config *regmap_config = &cs35l56_regmap_spi;20 struct cs35l56_private *cs35l56;21 int ret;22 23 cs35l56 = devm_kzalloc(&spi->dev, sizeof(struct cs35l56_private), GFP_KERNEL);24 if (!cs35l56)25 return -ENOMEM;26 27 spi_set_drvdata(spi, cs35l56);28 cs35l56->base.regmap = devm_regmap_init_spi(spi, regmap_config);29 if (IS_ERR(cs35l56->base.regmap)) {30 ret = PTR_ERR(cs35l56->base.regmap);31 return dev_err_probe(&spi->dev, ret, "Failed to allocate register map\n");32 }33 34 cs35l56->base.dev = &spi->dev;35 cs35l56->base.can_hibernate = true;36 37 ret = cs35l56_common_probe(cs35l56);38 if (ret != 0)39 return ret;40 41 ret = cs35l56_init(cs35l56);42 if (ret == 0)43 ret = cs35l56_irq_request(&cs35l56->base, spi->irq);44 if (ret < 0)45 cs35l56_remove(cs35l56);46 47 return ret;48}49 50static void cs35l56_spi_remove(struct spi_device *spi)51{52 struct cs35l56_private *cs35l56 = spi_get_drvdata(spi);53 54 cs35l56_remove(cs35l56);55}56 57static const struct spi_device_id cs35l56_id_spi[] = {58 { "cs35l56", 0 },59 {}60};61MODULE_DEVICE_TABLE(spi, cs35l56_id_spi);62 63#ifdef CONFIG_ACPI64static const struct acpi_device_id cs35l56_asoc_acpi_match[] = {65 { "CSC355C", 0 },66 {},67};68MODULE_DEVICE_TABLE(acpi, cs35l56_asoc_acpi_match);69#endif70 71static struct spi_driver cs35l56_spi_driver = {72 .driver = {73 .name = "cs35l56",74 .pm = pm_ptr(&cs35l56_pm_ops_i2c_spi),75 .acpi_match_table = ACPI_PTR(cs35l56_asoc_acpi_match),76 },77 .id_table = cs35l56_id_spi,78 .probe = cs35l56_spi_probe,79 .remove = cs35l56_spi_remove,80};81 82module_spi_driver(cs35l56_spi_driver);83 84MODULE_DESCRIPTION("ASoC CS35L56 SPI driver");85MODULE_IMPORT_NS(SND_SOC_CS35L56_CORE);86MODULE_IMPORT_NS(SND_SOC_CS35L56_SHARED);87MODULE_AUTHOR("Richard Fitzgerald <rf@opensource.cirrus.com>");88MODULE_AUTHOR("Simon Trimmer <simont@opensource.cirrus.com>");89MODULE_LICENSE("GPL");90