From d37ae19a6c21bc358f69e1dca410743c98347fe2 Mon Sep 17 00:00:00 2001 From: Paulo Zanoni Date: Thu, 30 Jul 2015 18:20:29 -0300 Subject: [PATCH] drm/i915/skl: send opregion_nofify_adapter(PCI_D1) instead of PCI_D3 I was told that the "repurposed D1 definition" is still valid for SKL. It is BDW that is special due to its hotplug bug, so let's special-case BDW instead of HSW. Cc: Kristen Carlson Accardi Signed-off-by: Paulo Zanoni Signed-off-by: Daniel Vetter --- drivers/gpu/drm/i915/i915_drv.c | 20 +++++++++----------- 1 file changed, 9 insertions(+), 11 deletions(-) diff --git a/drivers/gpu/drm/i915/i915_drv.c b/drivers/gpu/drm/i915/i915_drv.c index 151263b433e6..1d887459e37f 100644 --- a/drivers/gpu/drm/i915/i915_drv.c +++ b/drivers/gpu/drm/i915/i915_drv.c @@ -1489,7 +1489,15 @@ static int intel_runtime_suspend(struct device *device) * FIXME: We really should find a document that references the arguments * used below! */ - if (IS_HASWELL(dev)) { + if (IS_BROADWELL(dev)) { + /* + * On Broadwell, if we use PCI_D1 the PCH DDI ports will stop + * being detected, and the call we do at intel_runtime_resume() + * won't be able to restore them. Since PCI_D3hot matches the + * actual specification and appears to be working, use it. + */ + intel_opregion_notify_adapter(dev, PCI_D3hot); + } else { /* * current versions of firmware which depend on this opregion * notification have repurposed the D1 definition to mean @@ -1498,16 +1506,6 @@ static int intel_runtime_suspend(struct device *device) * the suspend path. */ intel_opregion_notify_adapter(dev, PCI_D1); - } else { - /* - * On Broadwell, if we use PCI_D1 the PCH DDI ports will stop - * being detected, and the call we do at intel_runtime_resume() - * won't be able to restore them. Since PCI_D3hot matches the - * actual specification and appears to be working, use it. Let's - * assume the other non-Haswell platforms will stay the same as - * Broadwell. - */ - intel_opregion_notify_adapter(dev, PCI_D3hot); } assert_forcewakes_inactive(dev_priv); -- GitLab