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Hibernation can be enabled on SPI-connected devices now that the hibernate and wake sequences have been updated to work with wake-on-MOSI. Signed-off-by: Richard Fitzgerald <rf@opensource.cirrus.com> Link: https://lore.kernel.org/r/20231006111039.101914-5-rf@opensource.cirrus.com Signed-off-by: Mark Brown <broonie@kernel.org>
90 lines
2.2 KiB
C
90 lines
2.2 KiB
C
// SPDX-License-Identifier: GPL-2.0-only
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//
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// CS35L56 ALSA SoC 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/acpi.h>
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#include <linux/module.h>
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#include <linux/moduleparam.h>
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#include <linux/regmap.h>
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#include <linux/spi/spi.h>
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#include <linux/types.h>
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#include "cs35l56.h"
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static int cs35l56_spi_probe(struct spi_device *spi)
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{
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const struct regmap_config *regmap_config = &cs35l56_regmap_spi;
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struct cs35l56_private *cs35l56;
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int ret;
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cs35l56 = devm_kzalloc(&spi->dev, sizeof(struct cs35l56_private), GFP_KERNEL);
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if (!cs35l56)
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return -ENOMEM;
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spi_set_drvdata(spi, cs35l56);
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cs35l56->base.regmap = devm_regmap_init_spi(spi, regmap_config);
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if (IS_ERR(cs35l56->base.regmap)) {
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ret = PTR_ERR(cs35l56->base.regmap);
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return dev_err_probe(&spi->dev, ret, "Failed to allocate register map\n");
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}
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cs35l56->base.dev = &spi->dev;
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cs35l56->base.can_hibernate = true;
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ret = cs35l56_common_probe(cs35l56);
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if (ret != 0)
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return ret;
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ret = cs35l56_init(cs35l56);
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if (ret == 0)
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ret = cs35l56_irq_request(&cs35l56->base, spi->irq);
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if (ret < 0)
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cs35l56_remove(cs35l56);
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return ret;
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}
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static void cs35l56_spi_remove(struct spi_device *spi)
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{
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struct cs35l56_private *cs35l56 = spi_get_drvdata(spi);
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cs35l56_remove(cs35l56);
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}
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static const struct spi_device_id cs35l56_id_spi[] = {
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{ "cs35l56", 0 },
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{}
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};
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MODULE_DEVICE_TABLE(spi, cs35l56_id_spi);
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#ifdef CONFIG_ACPI
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static const struct acpi_device_id cs35l56_asoc_acpi_match[] = {
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{ "CSC355C", 0 },
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{},
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};
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MODULE_DEVICE_TABLE(acpi, cs35l56_asoc_acpi_match);
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#endif
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static struct spi_driver cs35l56_spi_driver = {
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.driver = {
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.name = "cs35l56",
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.pm = pm_ptr(&cs35l56_pm_ops_i2c_spi),
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.acpi_match_table = ACPI_PTR(cs35l56_asoc_acpi_match),
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},
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.id_table = cs35l56_id_spi,
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.probe = cs35l56_spi_probe,
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.remove = cs35l56_spi_remove,
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};
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module_spi_driver(cs35l56_spi_driver);
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MODULE_DESCRIPTION("ASoC CS35L56 SPI driver");
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MODULE_IMPORT_NS(SND_SOC_CS35L56_CORE);
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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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