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drm/{i915,xe}: add intel_display_driver_shutdown_late()

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Add new function intel_display_driver_shutdown_late() to be called
"later" in the struct pci_driver .shutdown hook.

There's a slight functional change in that
intel_display_driver_shutdown_late() returns early for
!HAS_DISPLAY(). Assume this is what we want, and there are no cases
where display engine is present but all pipes have been fused off.

Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patch.msgid.link/d200966191a3845e6b9586d20884e285670734d1.1780389001.git.jani.nikula@intel.com
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
This commit is contained in:
Jani Nikula
2026-06-02 11:32:48 +03:00
parent 91391b1a77
commit 131acec1ce
4 changed files with 17 additions and 11 deletions
Download Patch File Download Diff File Expand all files Collapse all files

13
drivers/gpu/drm/i915/display/intel_display_driver.c
View File

@@ -675,6 +675,19 @@ void intel_display_driver_unregister(struct intel_display *display)
intel_vga_unregister(display);
}
void intel_display_driver_shutdown_late(struct intel_display *display)
{
if (!HAS_DISPLAY(display))
return;
/*
* The only requirement is to reboot with display DC states disabled,
* for now leaving all display power wells in the INIT power domain
* enabled.
*/
intel_display_power_driver_remove(display);
}
/*
* turn all crtc's off, but do not adjust state
* This has to be paired with a call to intel_modeset_setup_hw_state.

1
drivers/gpu/drm/i915/display/intel_display_driver.h
View File

@@ -24,6 +24,7 @@ void intel_display_driver_remove(struct intel_display *display);
void intel_display_driver_remove_noirq(struct intel_display *display);
void intel_display_driver_remove_nogem(struct intel_display *display);
void intel_display_driver_unregister(struct intel_display *display);
void intel_display_driver_shutdown_late(struct intel_display *display);
int intel_display_driver_pm_suspend(struct intel_display *display);
void intel_display_driver_pm_suspend_late(struct intel_display *display, bool s2idle);

7
drivers/gpu/drm/i915/i915_driver.c
View File

@@ -1075,17 +1075,14 @@ void i915_driver_shutdown(struct drm_i915_private *i915)
i915_gem_suspend(i915);
/*
* The only requirement is to reboot with display DC states disabled,
* for now leaving all display power wells in the INIT power domain
* enabled.
*
* TODO:
* - unify the pci_driver::shutdown sequence here with the
* pci_driver.driver.pm.poweroff,poweroff_late sequence.
* - unify the driver remove and system/runtime suspend sequences with
* the above unified shutdown/poweroff sequence.
*/
intel_display_power_driver_remove(display);
intel_display_driver_shutdown_late(display);
enable_rpm_wakeref_asserts(&i915->runtime_pm);
intel_runtime_pm_driver_last_release(&i915->runtime_pm);

7
drivers/gpu/drm/xe/display/xe_display.c
View File

@@ -242,12 +242,7 @@ void xe_display_shutdown_late(struct xe_device *xe)
if (!xe->info.probe_display)
return;
/*
* The only requirement is to reboot with display DC states disabled,
* for now leaving all display power wells in the INIT power domain
* enabled.
*/
intel_display_power_driver_remove(display);
intel_display_driver_shutdown_late(display);
}
/* IRQ-related functions */