Release 4.7 drivers/gpio/gpio-wm8350.c
/*
* gpiolib support for Wolfson WM835x PMICs
*
* Copyright 2009 Wolfson Microelectronics PLC.
*
* Author: Mark Brown <broonie@opensource.wolfsonmicro.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.
*
*/
#include <linux/kernel.h>
#include <linux/slab.h>
#include <linux/module.h>
#include <linux/gpio.h>
#include <linux/mfd/core.h>
#include <linux/platform_device.h>
#include <linux/seq_file.h>
#include <linux/mfd/wm8350/core.h>
#include <linux/mfd/wm8350/gpio.h>
struct wm8350_gpio_data {
struct wm8350 *wm8350;
struct gpio_chip gpio_chip;
};
static int wm8350_gpio_direction_in(struct gpio_chip *chip, unsigned offset)
{
struct wm8350_gpio_data *wm8350_gpio = gpiochip_get_data(chip);
struct wm8350 *wm8350 = wm8350_gpio->wm8350;
return wm8350_set_bits(wm8350, WM8350_GPIO_CONFIGURATION_I_O,
1 << offset);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| mark brown | mark brown | 44 | 97.78% | 1 | 50.00% |
| linus walleij | linus walleij | 1 | 2.22% | 1 | 50.00% |
| Total | 45 | 100.00% | 2 | 100.00% |
static int wm8350_gpio_get(struct gpio_chip *chip, unsigned offset)
{
struct wm8350_gpio_data *wm8350_gpio = gpiochip_get_data(chip);
struct wm8350 *wm8350 = wm8350_gpio->wm8350;
int ret;
ret = wm8350_reg_read(wm8350, WM8350_GPIO_LEVEL);
if (ret < 0)
return ret;
if (ret & (1 << offset))
return 1;
else
return 0;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| mark brown | mark brown | 70 | 98.59% | 1 | 50.00% |
| linus walleij | linus walleij | 1 | 1.41% | 1 | 50.00% |
| Total | 71 | 100.00% | 2 | 100.00% |
static void wm8350_gpio_set(struct gpio_chip *chip, unsigned offset, int value)
{
struct wm8350_gpio_data *wm8350_gpio = gpiochip_get_data(chip);
struct wm8350 *wm8350 = wm8350_gpio->wm8350;
if (value)
wm8350_set_bits(wm8350, WM8350_GPIO_LEVEL, 1 << offset);
else
wm8350_clear_bits(wm8350, WM8350_GPIO_LEVEL, 1 << offset);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| mark brown | mark brown | 62 | 98.41% | 1 | 50.00% |
| linus walleij | linus walleij | 1 | 1.59% | 1 | 50.00% |
| Total | 63 | 100.00% | 2 | 100.00% |
static int wm8350_gpio_direction_out(struct gpio_chip *chip,
unsigned offset, int value)
{
struct wm8350_gpio_data *wm8350_gpio = gpiochip_get_data(chip);
struct wm8350 *wm8350 = wm8350_gpio->wm8350;
int ret;
ret = wm8350_clear_bits(wm8350, WM8350_GPIO_CONFIGURATION_I_O,
1 << offset);
if (ret < 0)
return ret;
/* Don't have an atomic direction/value setup */
wm8350_gpio_set(chip, offset, value);
return 0;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| mark brown | mark brown | 73 | 98.65% | 1 | 50.00% |
| linus walleij | linus walleij | 1 | 1.35% | 1 | 50.00% |
| Total | 74 | 100.00% | 2 | 100.00% |
static int wm8350_gpio_to_irq(struct gpio_chip *chip, unsigned offset)
{
struct wm8350_gpio_data *wm8350_gpio = gpiochip_get_data(chip);
struct wm8350 *wm8350 = wm8350_gpio->wm8350;
if (!wm8350->irq_base)
return -EINVAL;
return wm8350->irq_base + WM8350_IRQ_GPIO(offset);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| mark brown | mark brown | 53 | 98.15% | 1 | 50.00% |
| linus walleij | linus walleij | 1 | 1.85% | 1 | 50.00% |
| Total | 54 | 100.00% | 2 | 100.00% |
static struct gpio_chip template_chip = {
.label = "wm8350",
.owner = THIS_MODULE,
.direction_input = wm8350_gpio_direction_in,
.get = wm8350_gpio_get,
.direction_output = wm8350_gpio_direction_out,
.set = wm8350_gpio_set,
.to_irq = wm8350_gpio_to_irq,
.can_sleep = true,
};
static int wm8350_gpio_probe(struct platform_device *pdev)
{
struct wm8350 *wm8350 = dev_get_drvdata(pdev->dev.parent);
struct wm8350_platform_data *pdata = dev_get_platdata(wm8350->dev);
struct wm8350_gpio_data *wm8350_gpio;
int ret;
wm8350_gpio = devm_kzalloc(&pdev->dev, sizeof(*wm8350_gpio),
GFP_KERNEL);
if (wm8350_gpio == NULL)
return -ENOMEM;
wm8350_gpio->wm8350 = wm8350;
wm8350_gpio->gpio_chip = template_chip;
wm8350_gpio->gpio_chip.ngpio = 13;
wm8350_gpio->gpio_chip.parent = &pdev->dev;
if (pdata && pdata->gpio_base)
wm8350_gpio->gpio_chip.base = pdata->gpio_base;
else
wm8350_gpio->gpio_chip.base = -1;
ret = devm_gpiochip_add_data(&pdev->dev, &wm8350_gpio->gpio_chip,
wm8350_gpio);
if (ret < 0) {
dev_err(&pdev->dev, "Could not register gpiochip, %d\n", ret);
return ret;
}
platform_set_drvdata(pdev, wm8350_gpio);
return ret;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| mark brown | mark brown | 161 | 88.46% | 1 | 16.67% |
| axel lin | axel lin | 9 | 4.95% | 1 | 16.67% |
| laxman dewangan | laxman dewangan | 6 | 3.30% | 1 | 16.67% |
| jingoo han | jingoo han | 3 | 1.65% | 1 | 16.67% |
| linus walleij | linus walleij | 3 | 1.65% | 2 | 33.33% |
| Total | 182 | 100.00% | 6 | 100.00% |
static struct platform_driver wm8350_gpio_driver = {
.driver.name = "wm8350-gpio",
.driver.owner = THIS_MODULE,
.probe = wm8350_gpio_probe,
};
static int __init wm8350_gpio_init(void)
{
return platform_driver_register(&wm8350_gpio_driver);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| mark brown | mark brown | 16 | 100.00% | 1 | 100.00% |
| Total | 16 | 100.00% | 1 | 100.00% |
subsys_initcall(wm8350_gpio_init);
static void __exit wm8350_gpio_exit(void)
{
platform_driver_unregister(&wm8350_gpio_driver);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| mark brown | mark brown | 15 | 100.00% | 1 | 100.00% |
| Total | 15 | 100.00% | 1 | 100.00% |
module_exit(wm8350_gpio_exit);
MODULE_AUTHOR("Mark Brown <broonie@opensource.wolfsonmicro.com>");
MODULE_DESCRIPTION("GPIO interface for WM8350 PMICs");
MODULE_LICENSE("GPL");
MODULE_ALIAS("platform:wm8350-gpio");
Overall Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| mark brown | mark brown | 634 | 95.34% | 1 | 11.11% |
| axel lin | axel lin | 9 | 1.35% | 1 | 11.11% |
| linus walleij | linus walleij | 9 | 1.35% | 3 | 33.33% |
| laxman dewangan | laxman dewangan | 6 | 0.90% | 1 | 11.11% |
| jingoo han | jingoo han | 3 | 0.45% | 1 | 11.11% |
| tejun heo | tejun heo | 3 | 0.45% | 1 | 11.11% |
| grant likely | grant likely | 1 | 0.15% | 1 | 11.11% |
| Total | 665 | 100.00% | 9 | 100.00% |
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