| /************************************************************************** |
| * Copyright (c) 2009-2011, Intel Corporation. |
| * 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 |
| * THE AUTHORS OR COPYRIGHT HOLDERS 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. |
| * |
| * Authors: |
| * Benjamin Defnet <benjamin.r.defnet@intel.com> |
| * Rajesh Poornachandran <rajesh.poornachandran@intel.com> |
| * Massively reworked |
| * Alan Cox <alan@linux.intel.com> |
| */ |
| #ifndef _PSB_POWERMGMT_H_ |
| #define _PSB_POWERMGMT_H_ |
| |
| #include <linux/pci.h> |
| #include <drm/drmP.h> |
| |
| void gma_power_init(struct drm_device *dev); |
| void gma_power_uninit(struct drm_device *dev); |
| |
| /* |
| * The kernel bus power management will call these functions |
| */ |
| int gma_power_suspend(struct device *dev); |
| int gma_power_resume(struct device *dev); |
| |
| /* |
| * These are the functions the driver should use to wrap all hw access |
| * (i.e. register reads and writes) |
| */ |
| bool gma_power_begin(struct drm_device *dev, bool force); |
| void gma_power_end(struct drm_device *dev); |
| |
| /* |
| * Use this function to do an instantaneous check for if the hw is on. |
| * Only use this in cases where you know the mutex is already held such |
| * as in irq install/uninstall and you need to |
| * prevent a deadlock situation. Otherwise use gma_power_begin(). |
| */ |
| bool gma_power_is_on(struct drm_device *dev); |
| |
| /* |
| * GFX-Runtime PM callbacks |
| */ |
| int psb_runtime_suspend(struct device *dev); |
| int psb_runtime_resume(struct device *dev); |
| int psb_runtime_idle(struct device *dev); |
| |
| #endif /*_PSB_POWERMGMT_H_*/ |
