From 8ee1c3db9075cb3211352e737e0feb98fd733b20 Mon Sep 17 00:00:00 2001 From: Matthew Garrett Date: Tue, 5 Aug 2008 19:37:25 +0100 Subject: Add Intel ACPI IGD OpRegion support This adds the support necessary for allowing ACPI backlight control to work on some newer Intel-based graphics systems. Tested on Thinkpad T61 and HP 2510p hardware. Signed-off-by: Matthew Garrett Signed-off-by: Dave Airlie --- drivers/gpu/drm/i915/i915_drv.c | 4 ++++ 1 file changed, 4 insertions(+) (limited to 'drivers/gpu/drm/i915/i915_drv.c') diff --git a/drivers/gpu/drm/i915/i915_drv.c b/drivers/gpu/drm/i915/i915_drv.c index 6c99aab12da..d95eca2bc45 100644 --- a/drivers/gpu/drm/i915/i915_drv.c +++ b/drivers/gpu/drm/i915/i915_drv.c @@ -371,6 +371,8 @@ static int i915_suspend(struct drm_device *dev, pm_message_t state) i915_save_vga(dev); + intel_opregion_free(dev); + if (state.event == PM_EVENT_SUSPEND) { /* Shut down the device */ pci_disable_device(dev->pdev); @@ -532,6 +534,8 @@ static int i915_resume(struct drm_device *dev) i915_restore_vga(dev); + intel_opregion_init(dev); + return 0; } -- cgit v1.2.3