threeeye
bc1d038eac
Squashed backup commit (no shallow-clone history issues) of xiaomi-mt6833-dev/kernel_xiaomi_mt6833 (lineage-23.2 branch, upstream commit 9eece662e) plus all fixes applied to get everpal_defconfig building clean against a modern (GCC 15.2.0) toolchain -- see the previous commit message on the lineage-23.2 branch (also in this repo history is not available here since this is a squashed snapshot; full incremental history lives in the local DL380 checkout and the upstream GitHub remote). Upstream: https://github.com/xiaomi-mt6833-dev/kernel_xiaomi_mt6833 (lineage-23.2)
85 lines
1.9 KiB
C
85 lines
1.9 KiB
C
/*
|
|
* Driver for ADAU1381/ADAU1781 CODEC
|
|
*
|
|
* Copyright 2014 Analog Devices Inc.
|
|
* Author: Lars-Peter Clausen <lars@metafoo.de>
|
|
*
|
|
* Licensed under the GPL-2.
|
|
*/
|
|
|
|
#include <linux/mod_devicetable.h>
|
|
#include <linux/module.h>
|
|
#include <linux/regmap.h>
|
|
#include <linux/spi/spi.h>
|
|
#include <sound/soc.h>
|
|
|
|
#include "adau1781.h"
|
|
|
|
static void adau1781_spi_switch_mode(struct device *dev)
|
|
{
|
|
struct spi_device *spi = to_spi_device(dev);
|
|
|
|
/*
|
|
* To get the device into SPI mode CLATCH has to be pulled low three
|
|
* times. Do this by issuing three dummy reads.
|
|
*/
|
|
spi_w8r8(spi, 0x00);
|
|
spi_w8r8(spi, 0x00);
|
|
spi_w8r8(spi, 0x00);
|
|
}
|
|
|
|
static int adau1781_spi_probe(struct spi_device *spi)
|
|
{
|
|
const struct spi_device_id *id = spi_get_device_id(spi);
|
|
struct regmap_config config;
|
|
|
|
if (!id)
|
|
return -EINVAL;
|
|
|
|
config = adau1781_regmap_config;
|
|
config.val_bits = 8;
|
|
config.reg_bits = 24;
|
|
config.read_flag_mask = 0x1;
|
|
|
|
return adau1781_probe(&spi->dev,
|
|
devm_regmap_init_spi(spi, &config),
|
|
id->driver_data, adau1781_spi_switch_mode);
|
|
}
|
|
|
|
static int adau1781_spi_remove(struct spi_device *spi)
|
|
{
|
|
adau17x1_remove(&spi->dev);
|
|
return 0;
|
|
}
|
|
|
|
static const struct spi_device_id adau1781_spi_id[] = {
|
|
{ "adau1381", ADAU1381 },
|
|
{ "adau1781", ADAU1781 },
|
|
{ }
|
|
};
|
|
MODULE_DEVICE_TABLE(spi, adau1781_spi_id);
|
|
|
|
#if defined(CONFIG_OF)
|
|
static const struct of_device_id adau1781_spi_dt_ids[] = {
|
|
{ .compatible = "adi,adau1381", },
|
|
{ .compatible = "adi,adau1781", },
|
|
{ },
|
|
};
|
|
MODULE_DEVICE_TABLE(of, adau1781_spi_dt_ids);
|
|
#endif
|
|
|
|
static struct spi_driver adau1781_spi_driver = {
|
|
.driver = {
|
|
.name = "adau1781",
|
|
.of_match_table = of_match_ptr(adau1781_spi_dt_ids),
|
|
},
|
|
.probe = adau1781_spi_probe,
|
|
.remove = adau1781_spi_remove,
|
|
.id_table = adau1781_spi_id,
|
|
};
|
|
module_spi_driver(adau1781_spi_driver);
|
|
|
|
MODULE_DESCRIPTION("ASoC ADAU1381/ADAU1781 CODEC SPI driver");
|
|
MODULE_AUTHOR("Lars-Peter Clausen <lars@metafoo.de>");
|
|
MODULE_LICENSE("GPL");
|