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From 7f629b8c628b12e1c913baeb82709b464ddffd7b Mon Sep 17 00:00:00 2001
From: Eric Yang <eric.yang2@amd.com>
Date: Tue, 27 Sep 2016 14:07:02 +0530
Subject: [PATCH] Use non-polling user mode notification for DAL
DAL do not use polling for user mode notification. This
change allow actual user mode notification on S3 resume
when DAL is enabled
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Eric Yang <eric.yang2@amd.com>
Signed-off-by: Sanjay R Mehta <sanju.mehta@amd.com>
---
drivers/gpu/drm/amd/amdgpu/amdgpu_device.c | 21 +++++++++++++++------
1 file changed, 15 insertions(+), 6 deletions(-)
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
index 59209e4..cfeebcc 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
@@ -1707,12 +1707,14 @@ int amdgpu_suspend_kms(struct drm_device *dev, bool suspend, bool fbcon)
drm_kms_helper_poll_disable(dev);
- /* turn off display hw */
- drm_modeset_lock_all(dev);
- list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
- drm_helper_connector_dpms(connector, DRM_MODE_DPMS_OFF);
+ if (!amdgpu_has_dal_support(adev)) {
+ /* turn off display hw */
+ drm_modeset_lock_all(dev);
+ list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
+ drm_helper_connector_dpms(connector, DRM_MODE_DPMS_OFF);
+ }
+ drm_modeset_unlock_all(dev);
}
- drm_modeset_unlock_all(dev);
/* unpin the front buffers and cursors */
list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
@@ -1807,6 +1809,9 @@ int amdgpu_resume_kms(struct drm_device *dev, bool resume, bool fbcon)
if (r)
DRM_ERROR("amdgpu_resume failed (%d).\n", r);
+ if (r)
+ DRM_ERROR("amdgpu_resume failed (%d).\n", r);
+
amdgpu_fence_driver_resume(adev);
if (resume) {
@@ -1866,7 +1871,11 @@ int amdgpu_resume_kms(struct drm_device *dev, bool resume, bool fbcon)
#ifdef CONFIG_PM
dev->dev->power.disable_depth++;
#endif
- drm_helper_hpd_irq_event(dev);
+
+ if (!amdgpu_has_dal_support(adev))
+ drm_helper_hpd_irq_event(dev);
+ else
+ drm_kms_helper_hotplug_event(dev);
#ifdef CONFIG_PM
dev->dev->power.disable_depth--;
#endif
--
2.7.4
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