Try to unify the suspend paths and behaviour by moving the
intel_opregion_suspend() calls to
intel_display_driver_pm_suspend_late().

This is a change in the suspend sequences. The idea behind adding this
to intel_display_driver_pm_suspend_late() is primarily based on not
having to pass the s2idle parameter to more functions than that.

This also changes behaviour for i915 hibernation, going for PCI_D3cold
instead of PCI_D1 on hibernate. It's probably the correct thing to do
anyway, I don't think it should matter all that much, but fingers
crossed.

Signed-off-by: Jani Nikula <[email protected]>
---
 drivers/gpu/drm/i915/display/intel_display_driver.c | 2 ++
 drivers/gpu/drm/i915/i915_driver.c                  | 4 ----
 drivers/gpu/drm/xe/display/xe_display.c             | 3 ---
 3 files changed, 2 insertions(+), 7 deletions(-)

diff --git a/drivers/gpu/drm/i915/display/intel_display_driver.c 
b/drivers/gpu/drm/i915/display/intel_display_driver.c
index 6cac36157bea..1525ff7a1dc2 100644
--- a/drivers/gpu/drm/i915/display/intel_display_driver.c
+++ b/drivers/gpu/drm/i915/display/intel_display_driver.c
@@ -770,6 +770,8 @@ void intel_display_driver_pm_suspend_late(struct 
intel_display *display, bool s2
        if (!HAS_DISPLAY(display))
                return;
 
+       intel_opregion_suspend(display, s2idle ? PCI_D1 : PCI_D3cold);
+
        intel_display_power_suspend_late(display, s2idle);
 }
 
diff --git a/drivers/gpu/drm/i915/i915_driver.c 
b/drivers/gpu/drm/i915/i915_driver.c
index 40fc15017486..7d0f98cbf5d9 100644
--- a/drivers/gpu/drm/i915/i915_driver.c
+++ b/drivers/gpu/drm/i915/i915_driver.c
@@ -1096,7 +1096,6 @@ static int i915_drm_suspend(struct drm_device *dev)
 {
        struct drm_i915_private *dev_priv = to_i915(dev);
        struct intel_display *display = dev_priv->display;
-       pci_power_t opregion_target_state;
 
        disable_rpm_wakeref_asserts(&dev_priv->runtime_pm);
 
@@ -1110,9 +1109,6 @@ static int i915_drm_suspend(struct drm_device *dev)
 
        i9xx_display_sr_save(display);
 
-       opregion_target_state = suspend_to_idle(dev_priv) ? PCI_D1 : PCI_D3cold;
-       intel_opregion_suspend(display, opregion_target_state);
-
        dev_priv->suspend_count++;
 
        enable_rpm_wakeref_asserts(&dev_priv->runtime_pm);
diff --git a/drivers/gpu/drm/xe/display/xe_display.c 
b/drivers/gpu/drm/xe/display/xe_display.c
index 9416405667d8..73891b36341b 100644
--- a/drivers/gpu/drm/xe/display/xe_display.c
+++ b/drivers/gpu/drm/xe/display/xe_display.c
@@ -266,14 +266,11 @@ static bool suspend_to_idle(void)
 void xe_display_pm_suspend(struct xe_device *xe)
 {
        struct intel_display *display = xe->display;
-       bool s2idle = suspend_to_idle();
 
        if (!xe->info.probe_display)
                return;
 
        intel_display_driver_pm_suspend(display);
-
-       intel_opregion_suspend(display, s2idle ? PCI_D1 : PCI_D3cold);
 }
 
 void xe_display_pm_suspend_late(struct xe_device *xe)
-- 
2.47.3

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