From 471d0558045fe35f8c5f291c1ee63815eb9c2dcd Mon Sep 17 00:00:00 2001 From: Alan Stern Date: Thu, 12 Jul 2007 16:55:07 -0400 Subject: PM: Remove deprecated sysfs files This patch (as932) removes the deprecated sysfs .../power/state attribute files. Signed-off-by: Alan Stern Acked-by: Pavel Machek Signed-off-by: Greg Kroah-Hartman --- drivers/base/power/sysfs.c | 66 ---------------------------------------------- 1 file changed, 66 deletions(-) (limited to 'drivers/base/power') diff --git a/drivers/base/power/sysfs.c b/drivers/base/power/sysfs.c index 2d47517dbe3..f2ed179cd69 100644 --- a/drivers/base/power/sysfs.c +++ b/drivers/base/power/sysfs.c @@ -7,69 +7,6 @@ #include "power.h" -#ifdef CONFIG_PM_SYSFS_DEPRECATED - -/** - * state - Control current power state of device - * - * show() returns the current power state of the device. '0' indicates - * the device is on. Other values (2) indicate the device is in some low - * power state. - * - * store() sets the current power state, which is an integer valued - * 0, 2, or 3. Devices with bus.suspend_late(), or bus.resume_early() - * methods fail this operation; those methods couldn't be called. - * Otherwise, - * - * - If the recorded dev->power.power_state.event matches the - * target value, nothing is done. - * - If the recorded event code is nonzero, the device is reactivated - * by calling bus.resume() and/or class.resume(). - * - If the target value is nonzero, the device is suspended by - * calling class.suspend() and/or bus.suspend() with event code - * PM_EVENT_SUSPEND. - * - * This mechanism is DEPRECATED and should only be used for testing. - */ - -static ssize_t state_show(struct device * dev, struct device_attribute *attr, char * buf) -{ - if (dev->power.power_state.event) - return sprintf(buf, "2\n"); - else - return sprintf(buf, "0\n"); -} - -static ssize_t state_store(struct device * dev, struct device_attribute *attr, const char * buf, size_t n) -{ - pm_message_t state; - int error = -EINVAL; - - /* disallow incomplete suspend sequences */ - if (dev->bus && (dev->bus->suspend_late || dev->bus->resume_early)) - return error; - - state.event = PM_EVENT_SUSPEND; - /* Older apps expected to write "3" here - confused with PCI D3 */ - if ((n == 1) && !strcmp(buf, "3")) - error = dpm_runtime_suspend(dev, state); - - if ((n == 1) && !strcmp(buf, "2")) - error = dpm_runtime_suspend(dev, state); - - if ((n == 1) && !strcmp(buf, "0")) { - dpm_runtime_resume(dev); - error = 0; - } - - return error ? error : n; -} - -static DEVICE_ATTR(state, 0644, state_show, state_store); - - -#endif /* CONFIG_PM_SYSFS_DEPRECATED */ - /* * wakeup - Report/change current wakeup option for device * @@ -143,9 +80,6 @@ static DEVICE_ATTR(wakeup, 0644, wake_show, wake_store); static struct attribute * power_attrs[] = { -#ifdef CONFIG_PM_SYSFS_DEPRECATED - &dev_attr_state.attr, -#endif &dev_attr_wakeup.attr, NULL, }; -- cgit v1.2.3