[PATCH v2 2/3] drm/xe/display: Extract xe_display_pm_runtime_suspend_late()

[Gustavo Sousa <gustavo.sousa@intel.com>]

The current behavior for the runtime suspend case is that
xe_display_pm_suspend_late() is only called when D3cold is allowed.
Let's incorporate that behavior into a function specific to runtime PM
and call it xe_display_pm_runtime_suspend_late().

With that, we keep stuff a bit more self-contained and allow having a
place for adding more "late display runtime suspend"-related logic that
isn't dependent on the "D3cold allowed" state.

v2:
  - Fix typo in that caused xe_display_pm_runtime_suspend_late() to call
    itself instead of xe_display_pm_suspend_late().
  - Add the empty version of xe_display_pm_runtime_suspend_late() for
    the !CONFIG_DRM_XE_DISPLAY case.

Signed-off-by: Gustavo Sousa <gustavo.sousa@intel.com>
---
 drivers/gpu/drm/xe/display/xe_display.c | 9 +++++++++
 drivers/gpu/drm/xe/display/xe_display.h | 2 ++
 drivers/gpu/drm/xe/xe_pm.c              | 4 ++--
 3 files changed, 13 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/xe/display/xe_display.c b/drivers/gpu/drm/xe/display/xe_display.c
index 69c828f38cb6..739db5b7b01f 100644
--- a/drivers/gpu/drm/xe/display/xe_display.c
+++ b/drivers/gpu/drm/xe/display/xe_display.c
@@ -407,6 +407,15 @@ void xe_display_pm_suspend_late(struct xe_device *xe)
 	intel_display_power_suspend_late(xe, s2idle);
 }
 
+void xe_display_pm_runtime_suspend_late(struct xe_device *xe)
+{
+	if (!xe->info.probe_display)
+		return;
+
+	if (xe->d3cold.allowed)
+		xe_display_pm_suspend_late(xe);
+}
+
 void xe_display_pm_shutdown_late(struct xe_device *xe)
 {
 	if (!xe->info.probe_display)
diff --git a/drivers/gpu/drm/xe/display/xe_display.h b/drivers/gpu/drm/xe/display/xe_display.h
index 17afa537aee5..233f81a26c25 100644
--- a/drivers/gpu/drm/xe/display/xe_display.h
+++ b/drivers/gpu/drm/xe/display/xe_display.h
@@ -41,6 +41,7 @@ void xe_display_pm_shutdown_late(struct xe_device *xe);
 void xe_display_pm_resume_early(struct xe_device *xe);
 void xe_display_pm_resume(struct xe_device *xe);
 void xe_display_pm_runtime_suspend(struct xe_device *xe);
+void xe_display_pm_runtime_suspend_late(struct xe_device *xe);
 void xe_display_pm_runtime_resume(struct xe_device *xe);
 
 #else
@@ -74,6 +75,7 @@ static inline void xe_display_pm_shutdown_late(struct xe_device *xe) {}
 static inline void xe_display_pm_resume_early(struct xe_device *xe) {}
 static inline void xe_display_pm_resume(struct xe_device *xe) {}
 static inline void xe_display_pm_runtime_suspend(struct xe_device *xe) {}
+static inline void xe_display_pm_runtime_suspend_late(struct xe_device *xe) {}
 static inline void xe_display_pm_runtime_resume(struct xe_device *xe) {}
 
 #endif /* CONFIG_DRM_XE_DISPLAY */
diff --git a/drivers/gpu/drm/xe/xe_pm.c b/drivers/gpu/drm/xe/xe_pm.c
index 80699dbeb2e9..a6761cb769b2 100644
--- a/drivers/gpu/drm/xe/xe_pm.c
+++ b/drivers/gpu/drm/xe/xe_pm.c
@@ -414,8 +414,8 @@ int xe_pm_runtime_suspend(struct xe_device *xe)
 
 	xe_irq_suspend(xe);
 
-	if (xe->d3cold.allowed)
-		xe_display_pm_suspend_late(xe);
+	xe_display_pm_runtime_suspend_late(xe);
+
 out:
 	if (err)
 		xe_display_pm_runtime_resume(xe);
-- 
2.47.0