From 83dc21544384ae8db01cc1c1a159ae6594444534 Mon Sep 17 00:00:00 2001 From: Ben Skeggs Date: Thu, 1 Nov 2012 16:16:31 +1000 Subject: drm/nouveau: fix suspend/resume when in headless mode Backport of fixes from upstream commit: 9430738d80223a1cd791a2baa74fa170d3df1262 Signed-off-by: Ben Skeggs Signed-off-by: Greg Kroah-Hartman --- 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 9a36f5f39b06..1fcc69a77f64 100644 --- a/drivers/gpu/drm/nouveau/nouveau_drv.c +++ b/drivers/gpu/drm/nouveau/nouveau_drv.c @@ -188,11 +188,13 @@ 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) { @@ -359,10 +361,12 @@ 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) { -- cgit v1.2.3