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Merge branch 'ib-mfd-regulator-gpio-4.6' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd into devel

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Esse commit está contido em:
Linus Walleij
2016-03-09 17:40:37 +07:00
pai adf32eaa05 ca801a22f4
commit 0bae2f1732
279 arquivos alterados com 4566 adições e 3058 exclusões
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172
drivers/gpio/gpio-tps65912.c
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@@ -1,38 +1,79 @@
/*
* Copyright 2011 Texas Instruments Inc.
* GPIO driver for TI TPS65912x PMICs
*
* Author: Margarita Olaya <magi@slimlogic.co.uk>
* 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 as published by the
* Free Software Foundation; either version 2 of the License, or (at your
* option) any later version.
* 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 driver is based on wm8350 implementation.
* 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 Arizona GPIO driver and the previous TPS65912 driver by
* Margarita Olaya Cabrera <magi@slimlogic.co.uk>
*/
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/errno.h>
#include <linux/gpio.h>
#include <linux/mfd/core.h>
#include <linux/module.h>
#include <linux/platform_device.h>
#include <linux/seq_file.h>
#include <linux/slab.h>
#include <linux/mfd/tps65912.h>
struct tps65912_gpio_data {
struct tps65912 *tps65912;
struct tps65912_gpio {
struct gpio_chip gpio_chip;
struct tps65912 *tps;
};
static int tps65912_gpio_get_direction(struct gpio_chip *gc,
unsigned offset)
{
struct tps65912_gpio *gpio = gpiochip_get_data(gc);
int ret, val;
ret = regmap_read(gpio->tps->regmap, TPS65912_GPIO1 + offset, &val);
if (ret)
return ret;
if (val & GPIO_CFG_MASK)
return GPIOF_DIR_OUT;
else
return GPIOF_DIR_IN;
}
static int tps65912_gpio_direction_input(struct gpio_chip *gc, unsigned offset)
{
struct tps65912_gpio *gpio = gpiochip_get_data(gc);
return regmap_update_bits(gpio->tps->regmap, TPS65912_GPIO1 + offset,
GPIO_CFG_MASK, 0);
}
static int tps65912_gpio_direction_output(struct gpio_chip *gc,
unsigned offset, int value)
{
struct tps65912_gpio *gpio = gpiochip_get_data(gc);
/* Set the initial value */
regmap_update_bits(gpio->tps->regmap, TPS65912_GPIO1 + offset,
GPIO_SET_MASK, value ? GPIO_SET_MASK : 0);
return regmap_update_bits(gpio->tps->regmap, TPS65912_GPIO1 + offset,
GPIO_CFG_MASK, GPIO_CFG_MASK);
}
static int tps65912_gpio_get(struct gpio_chip *gc, unsigned offset)
{
struct tps65912_gpio_data *tps65912_gpio = gpiochip_get_data(gc);
struct tps65912 *tps65912 = tps65912_gpio->tps65912;
int val;
struct tps65912_gpio *gpio = gpiochip_get_data(gc);
int ret, val;
val = tps65912_reg_read(tps65912, TPS65912_GPIO1 + offset);
ret = regmap_read(gpio->tps->regmap, TPS65912_GPIO1 + offset, &val);
if (ret)
return ret;
if (val & GPIO_STS_MASK)
return 1;
@@ -43,101 +84,66 @@ static int tps65912_gpio_get(struct gpio_chip *gc, unsigned offset)
static void tps65912_gpio_set(struct gpio_chip *gc, unsigned offset,
int value)
{
struct tps65912_gpio_data *tps65912_gpio = gpiochip_get_data(gc);
struct tps65912 *tps65912 = tps65912_gpio->tps65912;
struct tps65912_gpio *gpio = gpiochip_get_data(gc);
if (value)
tps65912_set_bits(tps65912, TPS65912_GPIO1 + offset,
GPIO_SET_MASK);
else
tps65912_clear_bits(tps65912, TPS65912_GPIO1 + offset,
GPIO_SET_MASK);
}
static int tps65912_gpio_output(struct gpio_chip *gc, unsigned offset,
int value)
{
struct tps65912_gpio_data *tps65912_gpio = gpiochip_get_data(gc);
struct tps65912 *tps65912 = tps65912_gpio->tps65912;
/* Set the initial value */
tps65912_gpio_set(gc, offset, value);
return tps65912_set_bits(tps65912, TPS65912_GPIO1 + offset,
GPIO_CFG_MASK);
}
static int tps65912_gpio_input(struct gpio_chip *gc, unsigned offset)
{
struct tps65912_gpio_data *tps65912_gpio = gpiochip_get_data(gc);
struct tps65912 *tps65912 = tps65912_gpio->tps65912;
return tps65912_clear_bits(tps65912, TPS65912_GPIO1 + offset,
GPIO_CFG_MASK);
regmap_update_bits(gpio->tps->regmap, TPS65912_GPIO1 + offset,
GPIO_SET_MASK, value ? GPIO_SET_MASK : 0);
}
static struct gpio_chip template_chip = {
.label = "tps65912",
.label = "tps65912-gpio",
.owner = THIS_MODULE,
.direction_input = tps65912_gpio_input,
.direction_output = tps65912_gpio_output,
.get_direction = tps65912_gpio_get_direction,
.direction_input = tps65912_gpio_direction_input,
.direction_output = tps65912_gpio_direction_output,
.get = tps65912_gpio_get,
.set = tps65912_gpio_set,
.can_sleep = true,
.ngpio = 5,
.base = -1,
.ngpio = 5,
.can_sleep = true,
};
static int tps65912_gpio_probe(struct platform_device *pdev)
{
struct tps65912 *tps65912 = dev_get_drvdata(pdev->dev.parent);
struct tps65912_board *pdata = dev_get_platdata(tps65912->dev);
struct tps65912_gpio_data *tps65912_gpio;
struct tps65912 *tps = dev_get_drvdata(pdev->dev.parent);
struct tps65912_gpio *gpio;
int ret;
tps65912_gpio = devm_kzalloc(&pdev->dev, sizeof(*tps65912_gpio),
GFP_KERNEL);
if (tps65912_gpio == NULL)
gpio = devm_kzalloc(&pdev->dev, sizeof(*gpio), GFP_KERNEL);
if (!gpio)
return -ENOMEM;
tps65912_gpio->tps65912 = tps65912;
tps65912_gpio->gpio_chip = template_chip;
tps65912_gpio->gpio_chip.parent = &pdev->dev;
if (pdata && pdata->gpio_base)
tps65912_gpio->gpio_chip.base = pdata->gpio_base;
gpio->tps = dev_get_drvdata(pdev->dev.parent);
gpio->gpio_chip = template_chip;
gpio->gpio_chip.parent = tps->dev;
ret = devm_gpiochip_add_data(&pdev->dev, &tps65912_gpio->gpio_chip,
tps65912_gpio);
if (ret < 0) {
dev_err(&pdev->dev, "Failed to register gpiochip, %d\n", ret);
dev_err(&pdev->dev, "Could not register gpiochip, %d\n", ret);
return ret;
}
platform_set_drvdata(pdev, tps65912_gpio);
platform_set_drvdata(pdev, gpio);
return ret;
return 0;
}
static const struct platform_device_id tps65912_gpio_id_table[] = {
{ "tps65912-gpio", },
{ /* sentinel */ }
};
MODULE_DEVICE_TABLE(platform, tps65912_gpio_id_table);
static struct platform_driver tps65912_gpio_driver = {
.driver = {
.name = "tps65912-gpio",
},
.probe = tps65912_gpio_probe,
.id_table = tps65912_gpio_id_table,
};
module_platform_driver(tps65912_gpio_driver);
static int __init tps65912_gpio_init(void)
{
return platform_driver_register(&tps65912_gpio_driver);
}
subsys_initcall(tps65912_gpio_init);
static void __exit tps65912_gpio_exit(void)
{
platform_driver_unregister(&tps65912_gpio_driver);
}
module_exit(tps65912_gpio_exit);
MODULE_AUTHOR("Margarita Olaya Cabrera <magi@slimlogic.co.uk>");
MODULE_DESCRIPTION("GPIO interface for TPS65912 PMICs");
MODULE_AUTHOR("Andrew F. Davis <afd@ti.com>");
MODULE_DESCRIPTION("TPS65912 GPIO driver");
MODULE_LICENSE("GPL v2");
MODULE_ALIAS("platform:tps65912-gpio");