Release 4.11 drivers/gpio/gpio-tps65912.c
/*
* GPIO 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 Arizona GPIO driver and the previous TPS65912 driver by
* Margarita Olaya Cabrera <magi@slimlogic.co.uk>
*/
#include <linux/gpio.h>
#include <linux/module.h>
#include <linux/platform_device.h>
#include <linux/mfd/tps65912.h>
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;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Margarita Olaya Cabrera | 39 | 58.21% | 1 | 25.00% |
| Andrew F. Davis | 26 | 38.81% | 1 | 25.00% |
| Nicolas Saenz Julienne | 1 | 1.49% | 1 | 25.00% |
| Linus Walleij | 1 | 1.49% | 1 | 25.00% |
| Total | 67 | 100.00% | 4 | 100.00% |
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);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Margarita Olaya Cabrera | 26 | 61.90% | 1 | 25.00% |
| Andrew F. Davis | 14 | 33.33% | 1 | 25.00% |
| Nicolas Saenz Julienne | 1 | 2.38% | 1 | 25.00% |
| Linus Walleij | 1 | 2.38% | 1 | 25.00% |
| Total | 42 | 100.00% | 4 | 100.00% |
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);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Margarita Olaya Cabrera | 40 | 59.70% | 1 | 25.00% |
| Andrew F. Davis | 25 | 37.31% | 1 | 25.00% |
| Linus Walleij | 1 | 1.49% | 1 | 25.00% |
| Nicolas Saenz Julienne | 1 | 1.49% | 1 | 25.00% |
| Total | 67 | 100.00% | 4 | 100.00% |
static int tps65912_gpio_get(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_STS_MASK)
return 1;
return 0;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Andrew F. Davis | 46 | 69.70% | 1 | 25.00% |
| Margarita Olaya Cabrera | 18 | 27.27% | 1 | 25.00% |
| Linus Walleij | 1 | 1.52% | 1 | 25.00% |
| Nicolas Saenz Julienne | 1 | 1.52% | 1 | 25.00% |
| Total | 66 | 100.00% | 4 | 100.00% |
static void tps65912_gpio_set(struct gpio_chip *gc, unsigned offset,
int value)
{
struct tps65912_gpio *gpio = gpiochip_get_data(gc);
regmap_update_bits(gpio->tps->regmap, TPS65912_GPIO1 + offset,
GPIO_SET_MASK, value ? GPIO_SET_MASK : 0);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Andrew F. Davis | 36 | 75.00% | 1 | 33.33% |
| Margarita Olaya Cabrera | 8 | 16.67% | 1 | 33.33% |
| Nicolas Saenz Julienne | 4 | 8.33% | 1 | 33.33% |
| Total | 48 | 100.00% | 3 | 100.00% |
static const struct gpio_chip template_chip = {
.label = "tps65912-gpio",
.owner = THIS_MODULE,
.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,
.base = -1,
.ngpio = 5,
.can_sleep = true,
};
static int tps65912_gpio_probe(struct platform_device *pdev)
{
struct tps65912 *tps = dev_get_drvdata(pdev->dev.parent);
struct tps65912_gpio *gpio;
int ret;
gpio = devm_kzalloc(&pdev->dev, sizeof(*gpio), GFP_KERNEL);
if (!gpio)
return -ENOMEM;
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, &gpio->gpio_chip,
gpio);
if (ret < 0) {
dev_err(&pdev->dev, "Could not register gpiochip, %d\n", ret);
return ret;
}
platform_set_drvdata(pdev, gpio);
return 0;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Margarita Olaya Cabrera | 97 | 69.78% | 1 | 14.29% |
| Andrew F. Davis | 23 | 16.55% | 1 | 14.29% |
| Axel Lin | 9 | 6.47% | 1 | 14.29% |
| Laxman Dewangan | 6 | 4.32% | 1 | 14.29% |
| Linus Walleij | 4 | 2.88% | 3 | 42.86% |
| Total | 139 | 100.00% | 7 | 100.00% |
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);
MODULE_AUTHOR("Andrew F. Davis <afd@ti.com>");
MODULE_DESCRIPTION("TPS65912 GPIO driver");
MODULE_LICENSE("GPL v2");
Overall Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Margarita Olaya Cabrera | 331 | 56.48% | 1 | 11.11% |
| Andrew F. Davis | 223 | 38.05% | 1 | 11.11% |
| Axel Lin | 9 | 1.54% | 1 | 11.11% |
| Nicolas Saenz Julienne | 8 | 1.37% | 1 | 11.11% |
| Linus Walleij | 8 | 1.37% | 3 | 33.33% |
| Laxman Dewangan | 6 | 1.02% | 1 | 11.11% |
| Julia Lawall | 1 | 0.17% | 1 | 11.11% |
| Total | 586 | 100.00% | 9 | 100.00% |
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