diff options
author | Grant Likely <grant.likely@secretlab.ca> | 2011-06-04 18:38:28 -0600 |
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committer | Grant Likely <grant.likely@secretlab.ca> | 2011-06-06 10:10:11 -0600 |
commit | c103de240439dfee24ac50eb99c8be3a30d13323 (patch) | |
tree | 014eeda779510d7d3dfabd1183ce7f1a288d367b /drivers/gpio/wm8350-gpiolib.c | |
parent | 8c31b1635b91e48f867e010cd7bcd06393e5858a (diff) | |
download | op-kernel-dev-c103de240439dfee24ac50eb99c8be3a30d13323.zip op-kernel-dev-c103de240439dfee24ac50eb99c8be3a30d13323.tar.gz |
gpio: reorganize drivers
Sort the gpio makefile and enforce the naming convention gpio-*.c for
gpio drivers.
v2: cleaned up filenames in Kconfig and comment blocks
v3: fixup use of BASIC_MMIO to GENERIC_GPIO for mxc
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
Diffstat (limited to 'drivers/gpio/wm8350-gpiolib.c')
-rw-r--r-- | drivers/gpio/wm8350-gpiolib.c | 182 |
1 files changed, 0 insertions, 182 deletions
diff --git a/drivers/gpio/wm8350-gpiolib.c b/drivers/gpio/wm8350-gpiolib.c deleted file mode 100644 index 3599992..0000000 --- a/drivers/gpio/wm8350-gpiolib.c +++ /dev/null @@ -1,182 +0,0 @@ -/* - * wm835x-gpiolib.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 inline struct wm8350_gpio_data *to_wm8350_gpio(struct gpio_chip *chip) -{ - return container_of(chip, struct wm8350_gpio_data, gpio_chip); -} - -static int wm8350_gpio_direction_in(struct gpio_chip *chip, unsigned offset) -{ - struct wm8350_gpio_data *wm8350_gpio = to_wm8350_gpio(chip); - struct wm8350 *wm8350 = wm8350_gpio->wm8350; - - return wm8350_set_bits(wm8350, WM8350_GPIO_CONFIGURATION_I_O, - 1 << offset); -} - -static int wm8350_gpio_get(struct gpio_chip *chip, unsigned offset) -{ - struct wm8350_gpio_data *wm8350_gpio = to_wm8350_gpio(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; -} - -static void wm8350_gpio_set(struct gpio_chip *chip, unsigned offset, int value) -{ - struct wm8350_gpio_data *wm8350_gpio = to_wm8350_gpio(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); -} - -static int wm8350_gpio_direction_out(struct gpio_chip *chip, - unsigned offset, int value) -{ - struct wm8350_gpio_data *wm8350_gpio = to_wm8350_gpio(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; -} - -static int wm8350_gpio_to_irq(struct gpio_chip *chip, unsigned offset) -{ - struct wm8350_gpio_data *wm8350_gpio = to_wm8350_gpio(chip); - struct wm8350 *wm8350 = wm8350_gpio->wm8350; - - if (!wm8350->irq_base) - return -EINVAL; - - return wm8350->irq_base + WM8350_IRQ_GPIO(offset); -} - -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 = 1, -}; - -static int __devinit wm8350_gpio_probe(struct platform_device *pdev) -{ - struct wm8350 *wm8350 = dev_get_drvdata(pdev->dev.parent); - struct wm8350_platform_data *pdata = wm8350->dev->platform_data; - struct wm8350_gpio_data *wm8350_gpio; - int ret; - - wm8350_gpio = kzalloc(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.dev = &pdev->dev; - if (pdata && pdata->gpio_base) - wm8350_gpio->gpio_chip.base = pdata->gpio_base; - else - wm8350_gpio->gpio_chip.base = -1; - - ret = gpiochip_add(&wm8350_gpio->gpio_chip); - if (ret < 0) { - dev_err(&pdev->dev, "Could not register gpiochip, %d\n", - ret); - goto err; - } - - platform_set_drvdata(pdev, wm8350_gpio); - - return ret; - -err: - kfree(wm8350_gpio); - return ret; -} - -static int __devexit wm8350_gpio_remove(struct platform_device *pdev) -{ - struct wm8350_gpio_data *wm8350_gpio = platform_get_drvdata(pdev); - int ret; - - ret = gpiochip_remove(&wm8350_gpio->gpio_chip); - if (ret == 0) - kfree(wm8350_gpio); - - return ret; -} - -static struct platform_driver wm8350_gpio_driver = { - .driver.name = "wm8350-gpio", - .driver.owner = THIS_MODULE, - .probe = wm8350_gpio_probe, - .remove = __devexit_p(wm8350_gpio_remove), -}; - -static int __init wm8350_gpio_init(void) -{ - return platform_driver_register(&wm8350_gpio_driver); -} -subsys_initcall(wm8350_gpio_init); - -static void __exit wm8350_gpio_exit(void) -{ - platform_driver_unregister(&wm8350_gpio_driver); -} -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"); |