diff options
Diffstat (limited to 'ANDROID_3.4.5/drivers/gpio/gpio-tps65912.c')
| -rw-r--r-- | ANDROID_3.4.5/drivers/gpio/gpio-tps65912.c | 156 |
1 files changed, 0 insertions, 156 deletions
diff --git a/ANDROID_3.4.5/drivers/gpio/gpio-tps65912.c b/ANDROID_3.4.5/drivers/gpio/gpio-tps65912.c deleted file mode 100644 index 79e66c00..00000000 --- a/ANDROID_3.4.5/drivers/gpio/gpio-tps65912.c +++ /dev/null @@ -1,156 +0,0 @@ -/* - * Copyright 2011 Texas Instruments Inc. - * - * Author: Margarita Olaya <magi@slimlogic.co.uk> - * - * 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 driver is based on wm8350 implementation. - */ - -#include <linux/kernel.h> -#include <linux/module.h> -#include <linux/errno.h> -#include <linux/gpio.h> -#include <linux/mfd/core.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 gpio_chip gpio_chip; -}; - -static int tps65912_gpio_get(struct gpio_chip *gc, unsigned offset) -{ - struct tps65912 *tps65912 = container_of(gc, struct tps65912, gpio); - int val; - - val = tps65912_reg_read(tps65912, TPS65912_GPIO1 + offset); - - if (val & GPIO_STS_MASK) - return 1; - - return 0; -} - -static void tps65912_gpio_set(struct gpio_chip *gc, unsigned offset, - int value) -{ - struct tps65912 *tps65912 = container_of(gc, struct tps65912, gpio); - - 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 *tps65912 = container_of(gc, struct tps65912, gpio); - - /* 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 *tps65912 = container_of(gc, struct tps65912, gpio); - - return tps65912_clear_bits(tps65912, TPS65912_GPIO1 + offset, - GPIO_CFG_MASK); - -} - -static struct gpio_chip template_chip = { - .label = "tps65912", - .owner = THIS_MODULE, - .direction_input = tps65912_gpio_input, - .direction_output = tps65912_gpio_output, - .get = tps65912_gpio_get, - .set = tps65912_gpio_set, - .can_sleep = 1, - .ngpio = 5, - .base = -1, -}; - -static int __devinit tps65912_gpio_probe(struct platform_device *pdev) -{ - struct tps65912 *tps65912 = dev_get_drvdata(pdev->dev.parent); - struct tps65912_board *pdata = tps65912->dev->platform_data; - struct tps65912_gpio_data *tps65912_gpio; - int ret; - - tps65912_gpio = kzalloc(sizeof(*tps65912_gpio), GFP_KERNEL); - if (tps65912_gpio == NULL) - return -ENOMEM; - - tps65912_gpio->tps65912 = tps65912; - tps65912_gpio->gpio_chip = template_chip; - tps65912_gpio->gpio_chip.dev = &pdev->dev; - if (pdata && pdata->gpio_base) - tps65912_gpio->gpio_chip.base = pdata->gpio_base; - - ret = gpiochip_add(&tps65912_gpio->gpio_chip); - if (ret < 0) { - dev_err(&pdev->dev, "Failed to register gpiochip, %d\n", ret); - goto err; - } - - platform_set_drvdata(pdev, tps65912_gpio); - - return ret; - -err: - kfree(tps65912_gpio); - return ret; -} - -static int __devexit tps65912_gpio_remove(struct platform_device *pdev) -{ - struct tps65912_gpio_data *tps65912_gpio = platform_get_drvdata(pdev); - int ret; - - ret = gpiochip_remove(&tps65912_gpio->gpio_chip); - if (ret == 0) - kfree(tps65912_gpio); - - return ret; -} - -static struct platform_driver tps65912_gpio_driver = { - .driver = { - .name = "tps65912-gpio", - .owner = THIS_MODULE, - }, - .probe = tps65912_gpio_probe, - .remove = __devexit_p(tps65912_gpio_remove), -}; - -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_LICENSE("GPL v2"); -MODULE_ALIAS("platform:tps65912-gpio"); |