Commit 5addcf0a5f0f ("nouveau: add runtime PM support (v0.9)") prevents runtime suspend of the GPU if its integrated HDA controller is not bound to a driver. The rationale appears to be that probing the HDA fails if the GPU is in D3cold.
However we now use a device link to ensure that the GPU is runtime resumed while the HDA controller is probed, rendering this safety measure obsolete. Remove it.
Cc: Dave Airlie airlied@redhat.com Cc: Ben Skeggs bskeggs@redhat.com Cc: Takashi Iwai tiwai@suse.de Cc: Peter Wu peter@lekensteyn.nl Cc: Alex Deucher alexander.deucher@amd.com Cc: Rafael J. Wysocki rafael.j.wysocki@intel.com Signed-off-by: Lukas Wunner lukas@wunner.de --- drivers/gpu/drm/nouveau/nouveau_drm.c | 44 ----------------------------------- drivers/gpu/drm/nouveau/nouveau_drv.h | 1 - 2 files changed, 45 deletions(-)
diff --git a/drivers/gpu/drm/nouveau/nouveau_drm.c b/drivers/gpu/drm/nouveau/nouveau_drm.c index 6959951d45d6..bbbf353682e1 100644 --- a/drivers/gpu/drm/nouveau/nouveau_drm.c +++ b/drivers/gpu/drm/nouveau/nouveau_drm.c @@ -510,37 +510,6 @@ static int nouveau_drm_probe(struct pci_dev *pdev, return 0; }
-#define PCI_CLASS_MULTIMEDIA_HD_AUDIO 0x0403 - -static void -nouveau_get_hdmi_dev(struct nouveau_drm *drm) -{ - struct pci_dev *pdev = drm->dev->pdev; - - if (!pdev) { - NV_DEBUG(drm, "not a PCI device; no HDMI\n"); - drm->hdmi_device = NULL; - return; - } - - /* subfunction one is a hdmi audio device? */ - drm->hdmi_device = pci_get_domain_bus_and_slot(pci_domain_nr(pdev->bus), - (unsigned int)pdev->bus->number, - PCI_DEVFN(PCI_SLOT(pdev->devfn), 1)); - - if (!drm->hdmi_device) { - NV_DEBUG(drm, "hdmi device not found %d %d %d\n", pdev->bus->number, PCI_SLOT(pdev->devfn), 1); - return; - } - - if ((drm->hdmi_device->class >> 8) != PCI_CLASS_MULTIMEDIA_HD_AUDIO) { - NV_DEBUG(drm, "possible hdmi device not audio %d\n", drm->hdmi_device->class); - pci_dev_put(drm->hdmi_device); - drm->hdmi_device = NULL; - return; - } -} - static int nouveau_drm_load(struct drm_device *dev, unsigned long flags) { @@ -568,8 +537,6 @@ nouveau_drm_load(struct drm_device *dev, unsigned long flags) INIT_LIST_HEAD(&drm->clients); spin_lock_init(&drm->tile.lock);
- nouveau_get_hdmi_dev(drm); - /* workaround an odd issue on nvc1 by disabling the device's * nosnoop capability. hopefully won't cause issues until a * better fix is found - assuming there is one... @@ -655,8 +622,6 @@ nouveau_drm_unload(struct drm_device *dev) nouveau_ttm_fini(drm); nouveau_vga_fini(drm);
- if (drm->hdmi_device) - pci_dev_put(drm->hdmi_device); nouveau_cli_fini(&drm->client); nouveau_cli_fini(&drm->master); kfree(drm); @@ -911,15 +876,6 @@ nouveau_pmops_runtime_idle(struct device *dev) return -EBUSY; }
- /* if we have a hdmi audio device - make sure it has a driver loaded */ - if (drm->hdmi_device) { - if (!drm->hdmi_device->driver) { - DRM_DEBUG_DRIVER("failing to power off - no HDMI audio driver loaded\n"); - pm_runtime_mark_last_busy(dev); - return -EBUSY; - } - } - list_for_each_entry(crtc, &drm->dev->mode_config.crtc_list, head) { if (crtc->enabled) { DRM_DEBUG_DRIVER("failing to power off - crtc active\n"); diff --git a/drivers/gpu/drm/nouveau/nouveau_drv.h b/drivers/gpu/drm/nouveau/nouveau_drv.h index 96f6bd8aee5d..881b44b89a01 100644 --- a/drivers/gpu/drm/nouveau/nouveau_drv.h +++ b/drivers/gpu/drm/nouveau/nouveau_drv.h @@ -208,7 +208,6 @@ struct nouveau_drm { bool have_disp_power_ref;
struct dev_pm_domain vga_pm_domain; - struct pci_dev *hdmi_device; };
static inline struct nouveau_drm *