[PATCH 186/241] drm/nouveau: fix suspend/resume when in headless mode
From: Herton Ronaldo Krzesinski
Date: Thu Dec 13 2012 - 09:27:01 EST
3.5.7.2 -stable review patch. If anyone has any objections, please let me know.
------------------
From: Ben Skeggs <bskeggs@xxxxxxxxxx>
Backport of fixes from upstream commit:
9430738d80223a1cd791a2baa74fa170d3df1262
Signed-off-by: Ben Skeggs <bskeggs@xxxxxxxxxx>
Signed-off-by: Herton Ronaldo Krzesinski <herton.krzesinski@xxxxxxxxxxxxx>
---
drivers/gpu/drm/nouveau/nouveau_drv.c | 18 +++++++++++-------
1 file changed, 11 insertions(+), 7 deletions(-)
diff --git a/drivers/gpu/drm/nouveau/nouveau_drv.c b/drivers/gpu/drm/nouveau/nouveau_drv.c
index cad254c..714acfb 100644
--- a/drivers/gpu/drm/nouveau/nouveau_drv.c
+++ b/drivers/gpu/drm/nouveau/nouveau_drv.c
@@ -187,11 +187,13 @@ nouveau_pci_suspend(struct pci_dev *pdev, pm_message_t pm_state)
if (dev->switch_power_state == DRM_SWITCH_POWER_OFF)
return 0;
- NV_INFO(dev, "Disabling display...\n");
- nouveau_display_fini(dev);
+ if (dev->mode_config.num_crtc) {
+ NV_INFO(dev, "Disabling display...\n");
+ nouveau_display_fini(dev);
- NV_INFO(dev, "Disabling fbcon...\n");
- nouveau_fbcon_set_suspend(dev, 1);
+ NV_INFO(dev, "Disabling fbcon...\n");
+ nouveau_fbcon_set_suspend(dev, 1);
+ }
NV_INFO(dev, "Unpinning framebuffer(s)...\n");
list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
@@ -358,10 +360,12 @@ nouveau_pci_resume(struct pci_dev *pdev)
NV_ERROR(dev, "Could not pin/map cursor.\n");
}
- nouveau_fbcon_set_suspend(dev, 0);
- nouveau_fbcon_zfill_all(dev);
+ if (dev->mode_config.num_crtc) {
+ nouveau_fbcon_set_suspend(dev, 0);
+ nouveau_fbcon_zfill_all(dev);
- nouveau_display_init(dev);
+ nouveau_display_init(dev);
+ }
/* Force CLUT to get re-loaded during modeset */
list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
--
1.7.9.5
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