From: Paulo Zanoni <[email protected]> Now that we are actually setting the device to the D3 state, we should issue the notification.
The opregion spec says we should send the message before the adapter is about to be placed in a lower power state, and after the adapter is placed in a higher power state. Jani originally wrote a similar patch for PC8, but then we discovered that we were not really changing the PCI D states when enabling/disabling PC8, so we had to postpone his patch. v2: - Improve commit message, explaining the expected state. Cc: Jani Nikula <[email protected]> Credits-to: Jani Nikula <[email protected]> Signed-off-by: Paulo Zanoni <[email protected]> --- drivers/gpu/drm/i915/i915_drv.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/gpu/drm/i915/i915_drv.c b/drivers/gpu/drm/i915/i915_drv.c index d5310a0..6b92929 100644 --- a/drivers/gpu/drm/i915/i915_drv.c +++ b/drivers/gpu/drm/i915/i915_drv.c @@ -918,6 +918,7 @@ static int i915_runtime_suspend(struct device *device) dev_priv->pm.suspended = true; + intel_opregion_notify_adapter(dev, PCI_D3cold); pci_save_state(pdev); pci_set_power_state(pdev, PCI_D3cold); @@ -936,6 +937,7 @@ static int i915_runtime_resume(struct device *device) pci_set_power_state(pdev, PCI_D0); pci_restore_state(pdev); + intel_opregion_notify_adapter(dev, PCI_D0); dev_priv->pm.suspended = false; -- 1.8.3.1 _______________________________________________ Intel-gfx mailing list [email protected] http://lists.freedesktop.org/mailman/listinfo/intel-gfx
