From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org, stable@vger.kernel.org Cc: Greg Kroah-Hartman , alan@lxorguk.ukuu.org.uk, Ben Skeggs Subject: [ 10/11] drm/nouveau: fix suspend/resume when in headless mode Date: Fri, 2 Nov 2012 10:06:45 -0700 Message-Id: <20121102170314.974313334@linuxfoundation.org> In-Reply-To: <20121102170314.204845540@linuxfoundation.org> References: <20121102170314.204845540@linuxfoundation.org> Sender: linux-kernel-owner@vger.kernel.org List-ID: 3.4-stable review patch. If anyone has any objections, please let me know. ------------------ From: Ben Skeggs 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(-) --- a/drivers/gpu/drm/nouveau/nouveau_drv.c +++ b/drivers/gpu/drm/nouveau/nouveau_drv.c @@ -186,11 +186,13 @@ nouveau_pci_suspend(struct pci_dev *pdev 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) { @@ -363,10 +365,12 @@ 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) {