mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
synced 2024-09-29 22:02:02 +00:00
73cfbfa9ca
Add a driver for the Cirrus Logic CS35L56 amplifier. This uses the same component binding API as the CS35L41 driver. This is not a standalone HDA device; it provides control of the CS35L56 for systems that use a combination of an HDA codec and CS35L56 amplifiers with audio routed through the HDA codec. The CS35L56 combines a high-performance mono audio amplifier, Class-H tracking inductive boost converter, Halo Core(TM) DSP and a DC-DC boost converter supporting Class-H tracking. Control interfaces are I2C or SPI through the standard Linux I2C or SPI bus framework. Most chip functionality is controlled by on-board ROM firmware that is always running. Firmware patches can be applied by the driver in the form of a .wmfw file (firmware patch) and/or a .bin file (system tuning). Signed-off-by: Simon Trimmer <simont@opensource.cirrus.com> Signed-off-by: Richard Fitzgerald <rf@opensource.cirrus.com> Reviewed-by: Takashi Iwai <tiwai@suse.de> Link: https://lore.kernel.org/r/20230721132120.5523-12-rf@opensource.cirrus.com Signed-off-by: Mark Brown <broonie@kernel.org>
68 lines
1.7 KiB
C
68 lines
1.7 KiB
C
// SPDX-License-Identifier: GPL-2.0-only
|
|
//
|
|
// CS35L56 HDA audio driver SPI binding
|
|
//
|
|
// Copyright (C) 2023 Cirrus Logic, Inc. and
|
|
// Cirrus Logic International Semiconductor Ltd.
|
|
|
|
#include <linux/module.h>
|
|
#include <linux/regmap.h>
|
|
#include <linux/spi/spi.h>
|
|
|
|
#include "cs35l56_hda.h"
|
|
|
|
static int cs35l56_hda_spi_probe(struct spi_device *spi)
|
|
{
|
|
struct cs35l56_hda *cs35l56;
|
|
int ret;
|
|
|
|
cs35l56 = devm_kzalloc(&spi->dev, sizeof(*cs35l56), GFP_KERNEL);
|
|
if (!cs35l56)
|
|
return -ENOMEM;
|
|
|
|
cs35l56->base.dev = &spi->dev;
|
|
cs35l56->base.regmap = devm_regmap_init_spi(spi, &cs35l56_regmap_spi);
|
|
if (IS_ERR(cs35l56->base.regmap)) {
|
|
ret = PTR_ERR(cs35l56->base.regmap);
|
|
dev_err(cs35l56->base.dev, "Failed to allocate register map: %d\n",
|
|
ret);
|
|
return ret;
|
|
}
|
|
|
|
ret = cs35l56_hda_common_probe(cs35l56, spi->chip_select);
|
|
if (ret)
|
|
return ret;
|
|
ret = cs35l56_irq_request(&cs35l56->base, spi->irq);
|
|
if (ret < 0)
|
|
cs35l56_hda_remove(cs35l56->base.dev);
|
|
|
|
return ret;
|
|
}
|
|
|
|
static void cs35l56_hda_spi_remove(struct spi_device *spi)
|
|
{
|
|
cs35l56_hda_remove(&spi->dev);
|
|
}
|
|
|
|
static const struct spi_device_id cs35l56_hda_spi_id[] = {
|
|
{ "cs35l56-hda", 0 },
|
|
{}
|
|
};
|
|
|
|
static struct spi_driver cs35l56_hda_spi_driver = {
|
|
.driver = {
|
|
.name = "cs35l56-hda",
|
|
.pm = &cs35l56_hda_pm_ops,
|
|
},
|
|
.id_table = cs35l56_hda_spi_id,
|
|
.probe = cs35l56_hda_spi_probe,
|
|
.remove = cs35l56_hda_spi_remove,
|
|
};
|
|
module_spi_driver(cs35l56_hda_spi_driver);
|
|
|
|
MODULE_DESCRIPTION("HDA CS35L56 SPI driver");
|
|
MODULE_IMPORT_NS(SND_HDA_SCODEC_CS35L56);
|
|
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");
|