diff options
Diffstat (limited to '')
-rw-r--r-- | sound/soc/codecs/cs35l56-spi.c | 88 |
1 files changed, 88 insertions, 0 deletions
diff --git a/sound/soc/codecs/cs35l56-spi.c b/sound/soc/codecs/cs35l56-spi.c new file mode 100644 index 0000000000..9962703915 --- /dev/null +++ b/sound/soc/codecs/cs35l56-spi.c @@ -0,0 +1,88 @@ +// SPDX-License-Identifier: GPL-2.0-only +// +// CS35L56 ALSA SoC audio driver SPI binding +// +// Copyright (C) 2023 Cirrus Logic, Inc. and +// Cirrus Logic International Semiconductor Ltd. + +#include <linux/acpi.h> +#include <linux/module.h> +#include <linux/moduleparam.h> +#include <linux/regmap.h> +#include <linux/spi/spi.h> +#include <linux/types.h> + +#include "cs35l56.h" + +static int cs35l56_spi_probe(struct spi_device *spi) +{ + const struct regmap_config *regmap_config = &cs35l56_regmap_spi; + struct cs35l56_private *cs35l56; + int ret; + + cs35l56 = devm_kzalloc(&spi->dev, sizeof(struct cs35l56_private), GFP_KERNEL); + if (!cs35l56) + return -ENOMEM; + + spi_set_drvdata(spi, cs35l56); + cs35l56->base.regmap = devm_regmap_init_spi(spi, regmap_config); + if (IS_ERR(cs35l56->base.regmap)) { + ret = PTR_ERR(cs35l56->base.regmap); + return dev_err_probe(&spi->dev, ret, "Failed to allocate register map\n"); + } + + cs35l56->base.dev = &spi->dev; + + ret = cs35l56_common_probe(cs35l56); + if (ret != 0) + return ret; + + ret = cs35l56_init(cs35l56); + if (ret == 0) + ret = cs35l56_irq_request(&cs35l56->base, spi->irq); + if (ret < 0) + cs35l56_remove(cs35l56); + + return ret; +} + +static void cs35l56_spi_remove(struct spi_device *spi) +{ + struct cs35l56_private *cs35l56 = spi_get_drvdata(spi); + + cs35l56_remove(cs35l56); +} + +static const struct spi_device_id cs35l56_id_spi[] = { + { "cs35l56", 0 }, + {} +}; +MODULE_DEVICE_TABLE(spi, cs35l56_id_spi); + +#ifdef CONFIG_ACPI +static const struct acpi_device_id cs35l56_asoc_acpi_match[] = { + { "CSC355C", 0 }, + {}, +}; +MODULE_DEVICE_TABLE(acpi, cs35l56_asoc_acpi_match); +#endif + +static struct spi_driver cs35l56_spi_driver = { + .driver = { + .name = "cs35l56", + .pm = &cs35l56_pm_ops_i2c_spi, + .acpi_match_table = ACPI_PTR(cs35l56_asoc_acpi_match), + }, + .id_table = cs35l56_id_spi, + .probe = cs35l56_spi_probe, + .remove = cs35l56_spi_remove, +}; + +module_spi_driver(cs35l56_spi_driver); + +MODULE_DESCRIPTION("ASoC CS35L56 SPI driver"); +MODULE_IMPORT_NS(SND_SOC_CS35L56_CORE); +MODULE_IMPORT_NS(SND_SOC_CS35L56_SHARED); +MODULE_AUTHOR("Richard Fitzgerald <rf@opensource.cirrus.com>"); +MODULE_AUTHOR("Simon Trimmer <simont@opensource.cirrus.com>"); +MODULE_LICENSE("GPL"); |