mirror of
https://github.com/edk2-porting/linux-next.git
synced 2024-12-27 06:34:11 +08:00
796f5692da
This patch adds support for TPS65912 PMIC MFD core. It provides communication through the I2C and SPI interfaces. It contains the following components: - Regulators - GPIO controller Signed-off-by: Andrew F. Davis <afd@ti.com> Signed-off-by: Lee Jones <lee.jones@linaro.org>
79 lines
2.1 KiB
C
79 lines
2.1 KiB
C
/*
|
|
* SPI access driver for TI TPS65912x PMICs
|
|
*
|
|
* Copyright (C) 2015 Texas Instruments Incorporated - http://www.ti.com/
|
|
* Andrew F. Davis <afd@ti.com>
|
|
*
|
|
* This program is free software; you can redistribute it and/or
|
|
* modify it under the terms of the GNU General Public License version 2 as
|
|
* published by the Free Software Foundation.
|
|
*
|
|
* This program is distributed "as is" WITHOUT ANY WARRANTY of any
|
|
* kind, whether expressed or implied; without even the implied warranty
|
|
* of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU General Public License version 2 for more details.
|
|
*
|
|
* Based on the TPS65218 driver and the previous TPS65912 driver by
|
|
* Margarita Olaya Cabrera <magi@slimlogic.co.uk>
|
|
*/
|
|
|
|
#include <linux/module.h>
|
|
#include <linux/regmap.h>
|
|
#include <linux/spi/spi.h>
|
|
|
|
#include <linux/mfd/tps65912.h>
|
|
|
|
static const struct of_device_id tps65912_spi_of_match_table[] = {
|
|
{ .compatible = "ti,tps65912", },
|
|
{ /* sentinel */ }
|
|
};
|
|
|
|
static int tps65912_spi_probe(struct spi_device *spi)
|
|
{
|
|
struct tps65912 *tps;
|
|
|
|
tps = devm_kzalloc(&spi->dev, sizeof(*tps), GFP_KERNEL);
|
|
if (!tps)
|
|
return -ENOMEM;
|
|
|
|
spi_set_drvdata(spi, tps);
|
|
tps->dev = &spi->dev;
|
|
tps->irq = spi->irq;
|
|
|
|
tps->regmap = devm_regmap_init_spi(spi, &tps65912_regmap_config);
|
|
if (IS_ERR(tps->regmap)) {
|
|
dev_err(tps->dev, "Failed to initialize register map\n");
|
|
return PTR_ERR(tps->regmap);
|
|
}
|
|
|
|
return tps65912_device_init(tps);
|
|
}
|
|
|
|
static int tps65912_spi_remove(struct spi_device *client)
|
|
{
|
|
struct tps65912 *tps = spi_get_drvdata(client);
|
|
|
|
return tps65912_device_exit(tps);
|
|
}
|
|
|
|
static const struct spi_device_id tps65912_spi_id_table[] = {
|
|
{ "tps65912", 0 },
|
|
{ /* sentinel */ }
|
|
};
|
|
MODULE_DEVICE_TABLE(spi, tps65912_spi_id_table);
|
|
|
|
static struct spi_driver tps65912_spi_driver = {
|
|
.driver = {
|
|
.name = "tps65912",
|
|
.of_match_table = tps65912_spi_of_match_table,
|
|
},
|
|
.probe = tps65912_spi_probe,
|
|
.remove = tps65912_spi_remove,
|
|
.id_table = tps65912_spi_id_table,
|
|
};
|
|
module_spi_driver(tps65912_spi_driver);
|
|
|
|
MODULE_AUTHOR("Andrew F. Davis <afd@ti.com>");
|
|
MODULE_DESCRIPTION("TPS65912x SPI Interface Driver");
|
|
MODULE_LICENSE("GPL v2");
|