mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
synced 2024-09-12 13:55:32 +00:00
![Cristian Ciocaltea](/assets/img/avatar_default.png)
Add support for the CLSA3541 ACPI device ID used on Valve's Steam Deck. The driver is fully compatible with the indicated hardware, hence no additional changes are required. Signed-off-by: Cristian Ciocaltea <cristian.ciocaltea@collabora.com> Acked-by: David Rhodes <drhodes@opensource.cirrus.com> Link: https://lore.kernel.org/r/20220621213819.262537-1-cristian.ciocaltea@collabora.com Signed-off-by: Mark Brown <broonie@kernel.org>
99 lines
2.4 KiB
C
99 lines
2.4 KiB
C
// SPDX-License-Identifier: GPL-2.0
|
|
//
|
|
// cs35l41-spi.c -- CS35l41 SPI driver
|
|
//
|
|
// Copyright 2017-2021 Cirrus Logic, Inc.
|
|
//
|
|
// Author: David Rhodes <david.rhodes@cirrus.com>
|
|
|
|
#include <linux/acpi.h>
|
|
#include <linux/delay.h>
|
|
#include <linux/init.h>
|
|
#include <linux/kernel.h>
|
|
#include <linux/module.h>
|
|
#include <linux/moduleparam.h>
|
|
#include <linux/platform_device.h>
|
|
#include <linux/spi/spi.h>
|
|
|
|
#include "cs35l41.h"
|
|
|
|
static const struct spi_device_id cs35l41_id_spi[] = {
|
|
{ "cs35l40", 0 },
|
|
{ "cs35l41", 0 },
|
|
{ "cs35l51", 0 },
|
|
{ "cs35l53", 0 },
|
|
{}
|
|
};
|
|
|
|
MODULE_DEVICE_TABLE(spi, cs35l41_id_spi);
|
|
|
|
static int cs35l41_spi_probe(struct spi_device *spi)
|
|
{
|
|
const struct regmap_config *regmap_config = &cs35l41_regmap_spi;
|
|
struct cs35l41_hw_cfg *hw_cfg = dev_get_platdata(&spi->dev);
|
|
struct cs35l41_private *cs35l41;
|
|
int ret;
|
|
|
|
cs35l41 = devm_kzalloc(&spi->dev, sizeof(struct cs35l41_private), GFP_KERNEL);
|
|
if (!cs35l41)
|
|
return -ENOMEM;
|
|
|
|
spi->max_speed_hz = CS35L41_SPI_MAX_FREQ;
|
|
spi_setup(spi);
|
|
|
|
spi_set_drvdata(spi, cs35l41);
|
|
cs35l41->regmap = devm_regmap_init_spi(spi, regmap_config);
|
|
if (IS_ERR(cs35l41->regmap)) {
|
|
ret = PTR_ERR(cs35l41->regmap);
|
|
dev_err(&spi->dev, "Failed to allocate register map: %d\n", ret);
|
|
return ret;
|
|
}
|
|
|
|
cs35l41->dev = &spi->dev;
|
|
cs35l41->irq = spi->irq;
|
|
|
|
return cs35l41_probe(cs35l41, hw_cfg);
|
|
}
|
|
|
|
static void cs35l41_spi_remove(struct spi_device *spi)
|
|
{
|
|
struct cs35l41_private *cs35l41 = spi_get_drvdata(spi);
|
|
|
|
cs35l41_remove(cs35l41);
|
|
}
|
|
|
|
#ifdef CONFIG_OF
|
|
static const struct of_device_id cs35l41_of_match[] = {
|
|
{ .compatible = "cirrus,cs35l40" },
|
|
{ .compatible = "cirrus,cs35l41" },
|
|
{},
|
|
};
|
|
MODULE_DEVICE_TABLE(of, cs35l41_of_match);
|
|
#endif
|
|
|
|
#ifdef CONFIG_ACPI
|
|
static const struct acpi_device_id cs35l41_acpi_match[] = {
|
|
{ "CSC3541", 0 }, /* Cirrus Logic PnP ID + part ID */
|
|
{ "CLSA3541", 0 }, /* Cirrus Logic PnP ID + part ID */
|
|
{},
|
|
};
|
|
MODULE_DEVICE_TABLE(acpi, cs35l41_acpi_match);
|
|
#endif
|
|
|
|
static struct spi_driver cs35l41_spi_driver = {
|
|
.driver = {
|
|
.name = "cs35l41",
|
|
.pm = &cs35l41_pm_ops,
|
|
.of_match_table = of_match_ptr(cs35l41_of_match),
|
|
.acpi_match_table = ACPI_PTR(cs35l41_acpi_match),
|
|
},
|
|
.id_table = cs35l41_id_spi,
|
|
.probe = cs35l41_spi_probe,
|
|
.remove = cs35l41_spi_remove,
|
|
};
|
|
|
|
module_spi_driver(cs35l41_spi_driver);
|
|
|
|
MODULE_DESCRIPTION("SPI CS35L41 driver");
|
|
MODULE_AUTHOR("David Rhodes, Cirrus Logic Inc, <david.rhodes@cirrus.com>");
|
|
MODULE_LICENSE("GPL");
|