mirror of
https://github.com/torvalds/linux.git
synced 2024-12-23 11:21:33 +00:00
69633beaeb
Use devm_mfd_add_devices() for MFD devices registration and get rid of .remove callback to remove MFD child-devices. This is done by managed device framework. CC: Gyungoh Yoo <jack.yoo@skyworksinc.com> Signed-off-by: Laxman Dewangan <ldewangan@nvidia.com> Signed-off-by: Lee Jones <lee.jones@linaro.org>
103 lines
2.8 KiB
C
103 lines
2.8 KiB
C
/*
|
|
* sky81452.c SKY81452 MFD driver
|
|
*
|
|
* Copyright 2014 Skyworks Solutions Inc.
|
|
* Author : Gyungoh Yoo <jack.yoo@skyworksinc.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 in the hope that it will be useful, but
|
|
* WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
* General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License along
|
|
* with this program; if not, see <http://www.gnu.org/licenses/>.
|
|
*/
|
|
|
|
#include <linux/kernel.h>
|
|
#include <linux/module.h>
|
|
#include <linux/init.h>
|
|
#include <linux/err.h>
|
|
#include <linux/slab.h>
|
|
#include <linux/i2c.h>
|
|
#include <linux/regmap.h>
|
|
#include <linux/mfd/core.h>
|
|
#include <linux/mfd/sky81452.h>
|
|
|
|
static const struct regmap_config sky81452_config = {
|
|
.reg_bits = 8,
|
|
.val_bits = 8,
|
|
};
|
|
|
|
static int sky81452_probe(struct i2c_client *client,
|
|
const struct i2c_device_id *id)
|
|
{
|
|
struct device *dev = &client->dev;
|
|
const struct sky81452_platform_data *pdata = dev_get_platdata(dev);
|
|
struct mfd_cell cells[2];
|
|
struct regmap *regmap;
|
|
int ret;
|
|
|
|
if (!pdata) {
|
|
pdata = devm_kzalloc(dev, sizeof(*pdata), GFP_KERNEL);
|
|
if (!pdata)
|
|
return -ENOMEM;
|
|
}
|
|
|
|
regmap = devm_regmap_init_i2c(client, &sky81452_config);
|
|
if (IS_ERR(regmap)) {
|
|
dev_err(dev, "failed to initialize.err=%ld\n", PTR_ERR(regmap));
|
|
return PTR_ERR(regmap);
|
|
}
|
|
|
|
i2c_set_clientdata(client, regmap);
|
|
|
|
memset(cells, 0, sizeof(cells));
|
|
cells[0].name = "sky81452-backlight";
|
|
cells[0].of_compatible = "skyworks,sky81452-backlight";
|
|
cells[0].platform_data = pdata->bl_pdata;
|
|
cells[0].pdata_size = sizeof(*pdata->bl_pdata);
|
|
cells[1].name = "sky81452-regulator";
|
|
cells[1].platform_data = pdata->regulator_init_data;
|
|
cells[1].pdata_size = sizeof(*pdata->regulator_init_data);
|
|
|
|
ret = devm_mfd_add_devices(dev, -1, cells, ARRAY_SIZE(cells),
|
|
NULL, 0, NULL);
|
|
if (ret)
|
|
dev_err(dev, "failed to add child devices. err=%d\n", ret);
|
|
|
|
return ret;
|
|
}
|
|
|
|
static const struct i2c_device_id sky81452_ids[] = {
|
|
{ "sky81452" },
|
|
{ }
|
|
};
|
|
MODULE_DEVICE_TABLE(i2c, sky81452_ids);
|
|
|
|
#ifdef CONFIG_OF
|
|
static const struct of_device_id sky81452_of_match[] = {
|
|
{ .compatible = "skyworks,sky81452", },
|
|
{ }
|
|
};
|
|
MODULE_DEVICE_TABLE(of, sky81452_of_match);
|
|
#endif
|
|
|
|
static struct i2c_driver sky81452_driver = {
|
|
.driver = {
|
|
.name = "sky81452",
|
|
.of_match_table = of_match_ptr(sky81452_of_match),
|
|
},
|
|
.probe = sky81452_probe,
|
|
.id_table = sky81452_ids,
|
|
};
|
|
|
|
module_i2c_driver(sky81452_driver);
|
|
|
|
MODULE_DESCRIPTION("Skyworks SKY81452 MFD driver");
|
|
MODULE_AUTHOR("Gyungoh Yoo <jack.yoo@skyworksinc.com>");
|
|
MODULE_LICENSE("GPL v2");
|