From b6b270a2607088997a0ec74cb1d618f140a382f7 Mon Sep 17 00:00:00 2001 From: Alan Hourihane Date: Tue, 28 Jun 2005 08:03:33 +0000 Subject: Given that BenH says using the sysdev approach for DRM is bogus, I'll yank the code for it, rather than introducing something that isn't going to work 100% of the time. --- linux-core/drm_pm.c | 152 ---------------------------------------------------- 1 file changed, 152 deletions(-) delete mode 100644 linux-core/drm_pm.c (limited to 'linux-core/drm_pm.c') diff --git a/linux-core/drm_pm.c b/linux-core/drm_pm.c deleted file mode 100644 index 1e93e1da..00000000 --- a/linux-core/drm_pm.c +++ /dev/null @@ -1,152 +0,0 @@ -/** - * \file drm_pm.h - * Power management support - * - * \author José Fonseca - */ - -/* - * Copyright 2004 Tungsten Graphics, Inc., Cedar Park, Texas. - * All rights reserved. - * - * Permission is hereby granted, free of charge, to any person obtaining a - * copy of this software and associated documentation files (the "Software"), - * to deal in the Software without restriction, including without limitation - * the rights to use, copy, modify, merge, publish, distribute, sublicense, - * and/or sell copies of the Software, and to permit persons to whom the - * Software is furnished to do so, subject to the following conditions: - * - * The above copyright notice and this permission notice (including the next - * paragraph) shall be included in all copies or substantial portions of the - * Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR - * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL - * TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR - * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, - * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER - * DEALINGS IN THE SOFTWARE. - */ - -#define __NO_VERSION__ -#include "drmP.h" - -#include -#include - - -static int drm_suspend(struct sys_device *sysdev, u32 state) -{ - struct drm_device *dev = - container_of(sysdev, struct drm_device, sysdev); - - DRM_DEBUG("state=%d\n", state); - - if (dev->driver->power) - return dev->driver->power(dev, state); - else - return 0; -} - -static int drm_resume(struct sys_device *sysdev) -{ - struct drm_device *dev = - container_of(sysdev, struct drm_device, sysdev); - - DRM_DEBUG("\n"); - - if (dev->driver->power) - return dev->driver->power(dev, 0); - else - return 0; -} - -static int shutdown(struct sys_device *sysdev) -{ - return 0; -} - -static atomic_t sysdev_loaded = ATOMIC_INIT(-1); -static struct sysdev_class drm_sysdev_class = { - set_kset_name("drm"), - .resume = drm_resume, - .suspend = drm_suspend, - .shutdown = shutdown, -}; - - -/** - * Initialize the Power Management data. - * - * \param dev DRM device. - * \return zero on success or a negative value on failure. - */ -int drm_pm_setup(drm_device_t *dev) -{ - int rc; - - if (atomic_read(&sysdev_loaded) == -1) - return 0; - - DRM_DEBUG("\n"); - - dev->sysdev.id = dev->primary.minor; - dev->sysdev.cls = &drm_sysdev_class; - -#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,4) - rc = sys_device_register(&dev->sysdev); -#else - rc = sysdev_register(&dev->sysdev); -#endif - return rc; -} - -/** - * Cleanup the Power Management resources. - * - * \param dev DRM device. - */ -void drm_pm_takedown(drm_device_t *dev) -{ - if (atomic_read(&sysdev_loaded) == -1) - return; - - DRM_DEBUG("\n"); - -#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,4) - sys_device_unregister(&dev->sysdev); -#else - sysdev_unregister(&dev->sysdev); -#endif -} - -int drm_pm_init(void) -{ - int rc; - DRM_DEBUG("\n"); - - /* triggers on -1 to 0 transition */ - if (!atomic_inc_and_test(&sysdev_loaded)) - return 0; - - if ((rc = sysdev_class_register(&drm_sysdev_class))) { - /* reset it back to -1 */ - atomic_dec(&sysdev_loaded); - } else { - /* inc it up to 1 so that unload will trigger on 1->0 */ - atomic_inc(&sysdev_loaded); - DRM_DEBUG("registered\n"); - } - return rc; -} - -void __exit drm_pm_exit(void) -{ - DRM_DEBUG("\n"); - /* triggers on the 1 to 0 transistion */ - if (atomic_dec_and_test(&sysdev_loaded)) { - sysdev_class_unregister(&drm_sysdev_class); - DRM_DEBUG("unregisted\n"); - } -} -- cgit v1.2.3