[PATCH 19/31] drm/xe/display: Align display resume sequence with i915

[Rodrigo Vivi]

Resume DMC before resuming IRQ.
Reset mode_config before GT resume.
Use direct intel_display_driver functions for that.

Signed-off-by: Rodrigo Vivi <rodrigo.vivi at intel.com>
---
 drivers/gpu/drm/xe/display/xe_display.c | 23 ++++++++++++++++-------
 drivers/gpu/drm/xe/display/xe_display.h |  2 ++
 drivers/gpu/drm/xe/xe_pm.c              |  4 ++++
 3 files changed, 22 insertions(+), 7 deletions(-)

diff --git a/drivers/gpu/drm/xe/display/xe_display.c b/drivers/gpu/drm/xe/display/xe_display.c
index df66e47daca3..959635653cfb 100644
--- a/drivers/gpu/drm/xe/display/xe_display.c
+++ b/drivers/gpu/drm/xe/display/xe_display.c
@@ -419,21 +419,30 @@ void xe_display_pm_resume_early(struct xe_device *xe)
 
 void xe_display_pm_resume(struct xe_device *xe)
 {
-	struct intel_display *display = &xe->display;
-
 	if (!xe->info.probe_display)
 		return;
 
-	intel_dmc_resume(display);
-
-	if (has_display(xe))
-		drm_mode_config_reset(&xe->drm);
-
 	intel_display_driver_init_hw(xe);
 
 	intel_display_driver_resume(xe);
 }
 
+void xe_display_pm_resume_noirq(struct xe_device *xe)
+{
+	if (!xe->info.probe_display)
+		return;
+
+	intel_display_driver_resume_noirq(xe);
+}
+
+void xe_display_pm_resume_noaccel(struct xe_device *xe)
+{
+	if (!xe->info.probe_display)
+		return;
+
+	intel_display_driver_resume_nogem(&xe->display);
+}
+
 void xe_display_pm_runtime_resume(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 a801db19b64f..b4ed5b598c2d 100644
--- a/drivers/gpu/drm/xe/display/xe_display.h
+++ b/drivers/gpu/drm/xe/display/xe_display.h
@@ -41,6 +41,8 @@ void xe_display_pm_shutdown_noirq(struct xe_device *xe);
 void xe_display_pm_shutdown_noaccel(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_resume_noirq(struct xe_device *xe);
+void xe_display_pm_resume_noaccel(struct xe_device *xe);
 void xe_display_pm_runtime_suspend(struct xe_device *xe);
 void xe_display_pm_runtime_resume(struct xe_device *xe);
 
diff --git a/drivers/gpu/drm/xe/xe_pm.c b/drivers/gpu/drm/xe/xe_pm.c
index 33eb039053e4..f5d89c326d46 100644
--- a/drivers/gpu/drm/xe/xe_pm.c
+++ b/drivers/gpu/drm/xe/xe_pm.c
@@ -182,8 +182,12 @@ int xe_pm_resume(struct xe_device *xe)
 	if (err)
 		goto err;
 
+	xe_display_pm_resume_noirq(xe);
+
 	xe_irq_resume(xe);
 
+	xe_display_pm_resume_noaccel(xe);
+
 	for_each_gt(gt, xe, id)
 		xe_gt_resume(gt);
 
-- 
2.46.0