mirror of
https://github.com/torvalds/linux
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2d0401ee38
Adding the ACPI HIDs to the match table triggers the cs35l56-hda modules
to be loaded on boot so that Serial Multi Instantiate can add the
devices to the bus and begin the driver init sequence.
Signed-off-by: Simon Trimmer <simont@opensource.cirrus.com>
Fixes: 73cfbfa9ca ("ALSA: hda/cs35l56: Add driver for Cirrus Logic CS35L56 amplifier")
Message-ID: <20240328121355.18972-1-simont@opensource.cirrus.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
85 lines
2.1 KiB
C
85 lines
2.1 KiB
C
// SPDX-License-Identifier: GPL-2.0-only
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//
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// CS35L56 HDA audio driver SPI binding
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//
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// Copyright (C) 2023 Cirrus Logic, Inc. and
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// Cirrus Logic International Semiconductor Ltd.
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#include <linux/module.h>
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#include <linux/regmap.h>
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#include <linux/spi/spi.h>
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#include "cs35l56_hda.h"
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static int cs35l56_hda_spi_probe(struct spi_device *spi)
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{
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const struct spi_device_id *id = spi_get_device_id(spi);
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struct cs35l56_hda *cs35l56;
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int ret;
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cs35l56 = devm_kzalloc(&spi->dev, sizeof(*cs35l56), GFP_KERNEL);
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if (!cs35l56)
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return -ENOMEM;
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cs35l56->base.dev = &spi->dev;
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#ifdef CS35L56_WAKE_HOLD_TIME_US
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cs35l56->base.can_hibernate = true;
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#endif
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cs35l56->base.regmap = devm_regmap_init_spi(spi, &cs35l56_regmap_spi);
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if (IS_ERR(cs35l56->base.regmap)) {
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ret = PTR_ERR(cs35l56->base.regmap);
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dev_err(cs35l56->base.dev, "Failed to allocate register map: %d\n",
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ret);
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return ret;
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}
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ret = cs35l56_hda_common_probe(cs35l56, id->driver_data, spi_get_chipselect(spi, 0));
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if (ret)
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return ret;
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ret = cs35l56_irq_request(&cs35l56->base, spi->irq);
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if (ret < 0)
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cs35l56_hda_remove(cs35l56->base.dev);
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return ret;
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}
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static void cs35l56_hda_spi_remove(struct spi_device *spi)
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{
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cs35l56_hda_remove(&spi->dev);
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}
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static const struct spi_device_id cs35l56_hda_spi_id[] = {
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{ "cs35l54-hda", 0x3554 },
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{ "cs35l56-hda", 0x3556 },
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{ "cs35l57-hda", 0x3557 },
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{}
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};
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static const struct acpi_device_id cs35l56_acpi_hda_match[] = {
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{ "CSC3554", 0 },
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{ "CSC3556", 0 },
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{ "CSC3557", 0 },
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{}
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};
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MODULE_DEVICE_TABLE(acpi, cs35l56_acpi_hda_match);
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static struct spi_driver cs35l56_hda_spi_driver = {
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.driver = {
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.name = "cs35l56-hda",
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.acpi_match_table = cs35l56_acpi_hda_match,
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.pm = &cs35l56_hda_pm_ops,
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},
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.id_table = cs35l56_hda_spi_id,
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.probe = cs35l56_hda_spi_probe,
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.remove = cs35l56_hda_spi_remove,
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};
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module_spi_driver(cs35l56_hda_spi_driver);
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MODULE_DESCRIPTION("HDA CS35L56 SPI driver");
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MODULE_IMPORT_NS(SND_HDA_SCODEC_CS35L56);
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MODULE_IMPORT_NS(SND_SOC_CS35L56_SHARED);
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MODULE_AUTHOR("Richard Fitzgerald <rf@opensource.cirrus.com>");
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MODULE_AUTHOR("Simon Trimmer <simont@opensource.cirrus.com>");
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MODULE_LICENSE("GPL");
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