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| author | Chris Wilson <chris@chris-wilson.co.uk> | 2010-09-08 12:45:11 +0400 |
|---|---|---|
| committer | Chris Wilson <chris@chris-wilson.co.uk> | 2010-09-21 14:57:15 +0400 |
| commit | 6eecba33f2fc24544073631dc1b23b7a312e644b (patch) | |
| tree | 14ba098f63f662f6a1cf7f4f13139c211590492e /drivers/gpu/drm/i915 | |
| parent | ae83dd5c7d80e0f9063739a18e270da7207a91e3 (diff) | |
| download | linux-6eecba33f2fc24544073631dc1b23b7a312e644b.tar.xz | |
drm/i915: Disable output polling across suspend & resume
Suspending (especially hibernating) may take a finite amount of time,
during which a hotplug event may trigger and we will attempt to handle
it with inconsistent state. Disable hotplug polling around suspend and
resume.
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=30070
Reported-by: Rui Tiago Matos <tiagomatos@gmail.com>
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Diffstat (limited to 'drivers/gpu/drm/i915')
| -rw-r--r-- | drivers/gpu/drm/i915/i915_dma.c | 2 | ||||
| -rw-r--r-- | drivers/gpu/drm/i915/i915_drv.c | 11 |
2 files changed, 10 insertions, 3 deletions
diff --git a/drivers/gpu/drm/i915/i915_dma.c b/drivers/gpu/drm/i915/i915_dma.c index dd7a0de7212c..048c54bdfd4c 100644 --- a/drivers/gpu/drm/i915/i915_dma.c +++ b/drivers/gpu/drm/i915/i915_dma.c @@ -1172,10 +1172,8 @@ static void i915_switcheroo_set_state(struct pci_dev *pdev, enum vga_switcheroo_ /* 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/i915/i915_drv.c b/drivers/gpu/drm/i915/i915_drv.c index 2c87f9b97b6f..4e83bb36888e 100644 --- a/drivers/gpu/drm/i915/i915_drv.c +++ b/drivers/gpu/drm/i915/i915_drv.c @@ -281,6 +281,8 @@ int i915_suspend(struct drm_device *dev, pm_message_t state) if (state.event == PM_EVENT_PRETHAW) return 0; + drm_kms_helper_poll_disable(dev); + error = i915_drm_freeze(dev); if (error) return error; @@ -325,12 +327,19 @@ static int i915_drm_thaw(struct drm_device *dev) int i915_resume(struct drm_device *dev) { + int ret; + if (pci_enable_device(dev->pdev)) return -EIO; pci_set_master(dev->pdev); - return i915_drm_thaw(dev); + ret = i915_drm_thaw(dev); + if (ret) + return ret; + + drm_kms_helper_poll_enable(dev); + return 0; } static int i965_reset_complete(struct drm_device *dev) |