diff options
Diffstat (limited to 'backport/compat/compat-3.5.c')
| -rw-r--r-- | backport/compat/compat-3.5.c | 169 |
1 files changed, 0 insertions, 169 deletions
diff --git a/backport/compat/compat-3.5.c b/backport/compat/compat-3.5.c deleted file mode 100644 index 721ec0e3..00000000 --- a/backport/compat/compat-3.5.c +++ /dev/null @@ -1,169 +0,0 @@ -/* - * Copyright 2012-2013 Luis R. Rodriguez <mcgrof@do-not-panic.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. - * - * Backport functionality introduced in Linux 3.5. - */ - -#include <linux/module.h> -#include <linux/highuid.h> -#include <linux/ktime.h> -#include <linux/hrtimer.h> -#include <linux/gpio.h> -#include <linux/ptp_clock_kernel.h> - -#if LINUX_VERSION_IS_GEQ(3,2,0) -#include <linux/device.h> - -/** - * devres_release - Find a device resource and destroy it, calling release - * @dev: Device to find resource from - * @release: Look for resources associated with this release function - * @match: Match function (optional) - * @match_data: Data for the match function - * - * Find the latest devres of @dev associated with @release and for - * which @match returns 1. If @match is NULL, it's considered to - * match all. If found, the resource is removed atomically, the - * release function called and the resource freed. - * - * RETURNS: - * 0 if devres is found and freed, -ENOENT if not found. - */ -int devres_release(struct device *dev, dr_release_t release, - dr_match_t match, void *match_data) -{ - void *res; - - res = devres_remove(dev, release, match, match_data); - if (unlikely(!res)) - return -ENOENT; - - (*release)(dev, res); - devres_free(res); - return 0; -} -EXPORT_SYMBOL_GPL(devres_release); -#endif /* LINUX_VERSION_IS_GEQ(3,2,0) */ - -/* - * Commit 7a4e7408c5cadb240e068a662251754a562355e3 - * exported overflowuid and overflowgid for all - * kernel configurations, prior to that we only - * had it exported when CONFIG_UID16 was enabled. - * We are technically redefining it here but - * nothing seems to be changing it, except - * kernel/ code does epose it via sysctl and - * proc... if required later we can add that here. - */ -#ifndef CONFIG_UID16 -int overflowuid = DEFAULT_OVERFLOWUID; -int overflowgid = DEFAULT_OVERFLOWGID; - -EXPORT_SYMBOL_GPL(overflowuid); -EXPORT_SYMBOL_GPL(overflowgid); -#endif - -/* #if IS_ENABLED(CONFIG_PTP_1588_CLOCK) */ -/* backported to all of our kernels */ -#if 0 -int ptp_clock_index(struct ptp_clock *ptp) -{ - return ptp->index; -} -EXPORT_SYMBOL(ptp_clock_index); -#endif /* CONFIG_PTP_1588_CLOCK */ - -#ifdef CONFIG_GPIOLIB -static void devm_gpio_release(struct device *dev, void *res) -{ - unsigned *gpio = res; - - gpio_free(*gpio); -} - -/** - * devm_gpio_request - request a GPIO for a managed device - * @dev: device to request the GPIO for - * @gpio: GPIO to allocate - * @label: the name of the requested GPIO - * - * Except for the extra @dev argument, this function takes the - * same arguments and performs the same function as - * gpio_request(). GPIOs requested with this function will be - * automatically freed on driver detach. - * - * If an GPIO allocated with this function needs to be freed - * separately, devm_gpio_free() must be used. - */ - -int devm_gpio_request(struct device *dev, unsigned gpio, const char *label) -{ - unsigned *dr; - int rc; - - dr = devres_alloc(devm_gpio_release, sizeof(unsigned), GFP_KERNEL); - if (!dr) - return -ENOMEM; - - rc = gpio_request(gpio, label); - if (rc) { - devres_free(dr); - return rc; - } - - *dr = gpio; - devres_add(dev, dr); - - return 0; -} -EXPORT_SYMBOL_GPL(devm_gpio_request); - -/** - * devm_gpio_request_one - request a single GPIO with initial setup - * @dev: device to request for - * @gpio: the GPIO number - * @flags: GPIO configuration as specified by GPIOF_* - * @label: a literal description string of this GPIO - */ -int devm_gpio_request_one(struct device *dev, unsigned gpio, - unsigned long flags, const char *label) -{ - unsigned *dr; - int rc; - - dr = devres_alloc(devm_gpio_release, sizeof(unsigned), GFP_KERNEL); - if (!dr) - return -ENOMEM; - - rc = gpio_request_one(gpio, flags, label); - if (rc) { - devres_free(dr); - return rc; - } - - *dr = gpio; - devres_add(dev, dr); - - return 0; -} -EXPORT_SYMBOL_GPL(devm_gpio_request_one); - -static int devm_gpio_match(struct device *dev, void *res, void *data) -{ - unsigned *this = res, *gpio = data; - - return *this == *gpio; -} - -void devm_gpio_free(struct device *dev, unsigned int gpio) -{ - WARN_ON(devres_destroy(dev, devm_gpio_release, devm_gpio_match, - &gpio)); - gpio_free(gpio); -} -EXPORT_SYMBOL_GPL(devm_gpio_free); -#endif /* CONFIG_GPIOLIB */ |