diff --git a/drivers/gpu/drm/drm_crtc_helper.c b/drivers/gpu/drm/drm_crtc_helper.c index 764401951041910692901ea9c1489962de3277b8..9b2a54117c91c0a306c41c7eb437b641bbd58b31 100644 --- a/drivers/gpu/drm/drm_crtc_helper.c +++ b/drivers/gpu/drm/drm_crtc_helper.c @@ -860,19 +860,24 @@ static void output_poll_execute(struct slow_work *work) } } -void drm_kms_helper_poll_init(struct drm_device *dev) +void drm_kms_helper_poll_disable(struct drm_device *dev) +{ + if (!dev->mode_config.poll_enabled) + return; + delayed_slow_work_cancel(&dev->mode_config.output_poll_slow_work); +} +EXPORT_SYMBOL(drm_kms_helper_poll_disable); + +void drm_kms_helper_poll_enable(struct drm_device *dev) { - struct drm_connector *connector; bool poll = false; + struct drm_connector *connector; int ret; list_for_each_entry(connector, &dev->mode_config.connector_list, head) { if (connector->polled) poll = true; } - slow_work_register_user(THIS_MODULE); - delayed_slow_work_init(&dev->mode_config.output_poll_slow_work, - &output_poll_ops); if (poll) { ret = delayed_slow_work_enqueue(&dev->mode_config.output_poll_slow_work, DRM_OUTPUT_POLL_PERIOD); @@ -880,11 +885,22 @@ void drm_kms_helper_poll_init(struct drm_device *dev) DRM_ERROR("delayed enqueue failed %d\n", ret); } } +EXPORT_SYMBOL(drm_kms_helper_poll_enable); + +void drm_kms_helper_poll_init(struct drm_device *dev) +{ + slow_work_register_user(THIS_MODULE); + delayed_slow_work_init(&dev->mode_config.output_poll_slow_work, + &output_poll_ops); + dev->mode_config.poll_enabled = true; + + drm_kms_helper_poll_enable(dev); +} EXPORT_SYMBOL(drm_kms_helper_poll_init); void drm_kms_helper_poll_fini(struct drm_device *dev) { - delayed_slow_work_cancel(&dev->mode_config.output_poll_slow_work); + drm_kms_helper_poll_disable(dev); slow_work_unregister_user(THIS_MODULE); } EXPORT_SYMBOL(drm_kms_helper_poll_fini); diff --git a/drivers/gpu/drm/i915/i915_dma.c b/drivers/gpu/drm/i915/i915_dma.c index 2a6b5de5ae5d07330232b8aff6b0b989300147a2..cc6e56a18edd9e8bc9ac9f11e41e9209951f0a62 100644 --- a/drivers/gpu/drm/i915/i915_dma.c +++ b/drivers/gpu/drm/i915/i915_dma.c @@ -1399,12 +1399,14 @@ static void i915_switcheroo_set_state(struct pci_dev *pdev, enum vga_switcheroo_ struct drm_device *dev = pci_get_drvdata(pdev); pm_message_t pmm = { .event = PM_EVENT_SUSPEND }; if (state == VGA_SWITCHEROO_ON) { - printk(KERN_INFO "i915: switched off\n"); + printk(KERN_INFO "i915: switched on\n"); /* i915 resume handler doesn't set to D0 */ pci_set_power_state(dev->pdev, PCI_D0); i915_resume(dev); + drm_kms_helper_poll_enable(dev); } else { printk(KERN_ERR "i915: switched off\n"); + drm_kms_helper_poll_disable(dev); i915_suspend(dev, pmm); } } diff --git a/drivers/gpu/drm/nouveau/nouveau_state.c b/drivers/gpu/drm/nouveau/nouveau_state.c index e632339c323e5bd03efe592f554875117322b7b1..5c468a4fef9a43a5408d5310a6b3af592bccb1bf 100644 --- a/drivers/gpu/drm/nouveau/nouveau_state.c +++ b/drivers/gpu/drm/nouveau/nouveau_state.c @@ -376,12 +376,15 @@ nouveau_card_init_channel(struct drm_device *dev) static void nouveau_switcheroo_set_state(struct pci_dev *pdev, enum vga_switcheroo_state state) { + struct drm_device *dev = pci_get_drvdata(pdev); pm_message_t pmm = { .event = PM_EVENT_SUSPEND }; if (state == VGA_SWITCHEROO_ON) { printk(KERN_ERR "VGA switcheroo: switched nouveau on\n"); nouveau_pci_resume(pdev); + drm_kms_helper_poll_enable(dev); } else { printk(KERN_ERR "VGA switcheroo: switched nouveau off\n"); + drm_kms_helper_poll_disable(dev); nouveau_pci_suspend(pdev, pmm); } } diff --git a/drivers/gpu/drm/radeon/radeon_device.c b/drivers/gpu/drm/radeon/radeon_device.c index fdc3fdf78acb3b45dc025ae6598942d032b99bf8..db338522191f5fbf0bb48bc7da08063ed42efbf8 100644 --- a/drivers/gpu/drm/radeon/radeon_device.c +++ b/drivers/gpu/drm/radeon/radeon_device.c @@ -546,8 +546,10 @@ static void radeon_switcheroo_set_state(struct pci_dev *pdev, enum vga_switchero /* don't suspend or resume card normally */ rdev->powered_down = false; radeon_resume_kms(dev); + drm_kms_helper_poll_enable(dev); } else { printk(KERN_INFO "radeon: switched off\n"); + drm_kms_helper_poll_disable(dev); radeon_suspend_kms(dev, pmm); /* don't suspend or resume card normally */ rdev->powered_down = true; diff --git a/include/drm/drm_crtc_helper.h b/include/drm/drm_crtc_helper.h index dc5873c21e4566ceaf6628882abae905098763f9..1121f7799c6ff527838ec50052d51bc10b10e2e7 100644 --- a/include/drm/drm_crtc_helper.h +++ b/include/drm/drm_crtc_helper.h @@ -130,4 +130,7 @@ extern int drm_helper_resume_force_mode(struct drm_device *dev); extern void drm_kms_helper_poll_init(struct drm_device *dev); extern void drm_kms_helper_poll_fini(struct drm_device *dev); extern void drm_helper_hpd_irq_event(struct drm_device *dev); + +extern void drm_kms_helper_poll_disable(struct drm_device *dev); +extern void drm_kms_helper_poll_enable(struct drm_device *dev); #endif